CN207619222U

CN207619222U - A kind of processing unit of dispersing type sewage

Info

Publication number: CN207619222U
Application number: CN201721647862.9U
Authority: CN
Inventors: 刘玲花; 彭文启; 唐克旺; 吴雷祥; 刘来胜
Original assignee: China Institute of Water Resources and Hydropower Research
Current assignee: China Institute of Water Resources and Hydropower Research
Priority date: 2017-12-01
Filing date: 2017-12-01
Publication date: 2018-07-17
Anticipated expiration: 2027-12-01

Abstract

The utility model is related to sewage treatment field, more particularly to a kind of processing unit of distributed sewage, including pass sequentially through anaerobic septic tank, mixed biologic filtration treatment device, sewage distributor box and the aerobic biological treatment device of pipeline connection setting；The anaerobic septic tank is divided into settling zone and reaction zone；The mixed biologic filtration treatment device includes the aerobe filtration treatment area set gradually from top to bottom and anaerobic organism filtration treatment area；In aerobe filtration treatment area, overburden layer and filter material layer are from top to bottom set gradually；Aerobe filtration treatment area connects inlet duct；Anaerobic organism filtration treatment area is filled with carbon source material floor；In the Aerobic biological process device, overburden layer and filter material layer are from top to bottom set gradually；The Aerobic biological process device connection inlet duct and exhaust apparatus.The processing unit management is simple；Anaerobism, the aerobic processing mode alternateed are combined, realizes the efficient removal for water pollutant.

Description

A kind of processing unit of dispersing type sewage

Technical field

The utility model is related to sewage treatment field, more particularly to a kind of processing unit of distributed sewage.

Background technology

China villages and small towns population is up to 9.48 hundred million, and the yield of annual pollutant surpasses 8,000,000,000 tons, but about 96% sanitary sewage Without processing or the direct emission after the processing of simple septic tank.Domestic sewage in rural areas complicated component, wherein nitrogen, phosphorus difference 35% and 60% or so is accounted for, causes body eutrophication after being discharged into water body, causes the surface water environments such as rivers and lakes and underground water Environmental pollution.

Moreover, country sewage dispersibility is strong, if establishing sewage treatment plant by after sewage collecting as city and being collected Middle processing then increases sewage network investment cost and operating cost.Therefore, in the treatment technology of selection domestic sewage in rural areas When, critical issue is to adapt to the actual conditions of Rural Areas at Present, and construction investment will save, and operational management will facilitate, and operating cost is wanted It is low, and the nitrogenous compound in domestic sewage of villages and small towns (such as ammonia nitrogen, nitrate, nitrite) can also be effectively removed, it is phosphorous The pollutants such as compound, other organic matters, coliform and suspended solid, reach the requirement of discharging standards.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of processing unit of distributed sewage, realizes agriculture The treatment in situ of village's sewage, the underground sewage processing unit is simple with management, device is located underground, and it is excellent not destroy landscape etc. Point, it is often more important that the sewage-treatment plant is to the major pollutants nitrogenous compound in domestic sewage of villages and small towns, phosphorus-containing compound, Other organic matters, suspended matter, coliform etc. have good treatment effect.

The utility model discloses a kind of processing units of distributed sewage, including pass sequentially through detesting for pipeline connection setting Aoxidize manure pit, mixed biologic filtration treatment device, sewage distributor box and aerobic biological treatment device；

The anaerobic septic tank is divided into settling zone and reaction zone；

The mixed biologic filtration treatment device includes the aerobe filtration treatment area set gradually from top to bottom and detests Oxygen biofiltration treatment region；In aerobe filtration treatment area, overburden layer and filter material layer are from top to bottom set gradually；It is described Aerobe filtration treatment area connects inlet duct；Anaerobic organism filtration treatment area is filled with carbon source material floor；

In the Aerobic biological process device, overburden layer and filter material layer are from top to bottom set gradually；At the aerobe Manage device connection inlet duct and exhaust apparatus.

Preferably, the anaerobic septic tank is Multi-level deflector anaerobic septic tank, and the reaction zone is Multi-level deflector reaction zone, The settling zone and Multi-level deflector reaction zone are separated by the first lower clapboard being arranged in the anaerobic septic tank；

The settling zone has the gradually inclined lead-in chamfered of the centre from the edge of bottom to bottom；

The Multi-level deflector reaction zone is arranged at least one second lower clapboard, and second lower clapboard is by the Multi-level deflector Reaction zone is divided into several compartments, is arranged a upper spacer in each compartment, and the lower end of second lower clapboard with The bottom of the Multi-level deflector reaction zone is connected, between the bottom of the lower end of the upper spacer and the Multi-level deflector reaction zone has Gap so that the both sides of the upper spacer be respectively formed it is lower to stream reaction zone and upward flow reaction zone；The settling zone and described more The top of grade baffling reaction zone is respectively equipped with mud-suction hole；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

Water inlet pipe is relatively arranged on the both sides of the Multi-level deflector anaerobic septic tank with drainpipe.

Preferably, the upward flow reaction zone and the lower width ratio to stream reaction zone are 5:1~7:1.

Preferably, the lower end of the upper spacer is connected with the deflector being obliquely installed relative to the upper spacer, described to lead The slanted angle of flowing plate and the upper spacer is 45 °.

Preferably, the top in aerobe filtration treatment area is the overburden layer that thickness is 100mm~150mm, described At least three-layer filter layer is laid in planting plants on overburden layer, the overburden layer lower part, and the particle diameter of filter medium of at least three-layer filter layer It continuously decreases from top to down, the filter material layer includes：

Positioned at the cobble filter layer of the overburden layer lower layer, cobble grain size is 2~4cm, and it is 140mm that cobble, which filters layer thickness, ~150mm；

Positioned at the rubble filter layer of cobble filter layer lower layer, the grain size of rubble is 1~2cm, the thickness of rubble filter layer Degree is 140~150mm；

And the combination media filtration layer positioned at rubble filter layer lower layer, the grain size for combining filtrate are 2~4mm, group The thickness for closing media filtration layer is 300~320mm；

Wherein, the first porous water distribution communicated with the discharge outlet of the anaerobic septic tank is provided in the cobble filter layer Pipe；The drainpipe communicated with the sewage distributor box is arranged in anaerobic organism filtration treatment area bottom.

Preferably, aerobe filtration treatment area is prismatic or cylindrical；Anaerobic organism filtration treatment area For the prismatic table shape or truncated cone-shaped that upper end is small, lower end is big.

Preferably, several inverted trapezoidal dish configurations being continuously arranged are provided in anaerobic organism filtration treatment area, The carbon source material layer is arranged in the inverted trapezoidal dish configuration, and the sidewall upper of the inverted trapezoidal dish configuration lays circle Hole；

Inverted trapezoidal dish configuration bottom is provided with the drainpipe in anaerobic organism filtration treatment area, and the drainpipe is the One cess, the uniformly distributed aperture in middle and upper part of first cess, around first cess Lay porous material.

Preferably, the uniformly distributed aperture in middle and lower part of the described first porous water distributor, the first porous water distributor it is outer Plastic optical fibre layer is wrapped up in portion, and the external of plastic optical fibre layer wraps up on-woven geotextile layer；

The endcapped of the first porous water distributor, the inlet duct of connection straight up in the end.

Preferably, the sewage distributor box is internally provided with immersible pump, and immersible pump is by upper floating ball liquid level meter and lower floating ball liquid Position device control；

After water level reaches upper floating ball liquid level meter, immersible pump is opened, and is drained；After water level reaches lower floating ball liquid level meter, dive Water pump is closed, and draining is stopped.

Preferably, the bottom lock of the Aerobic biological process device and it is connected with recovery channel, alternatively, described aerobic The bottom of biological treatment device is directly communicated with underground；

Top is the overburden layer that thickness is 100mm~150mm, planting plants on the overburden layer, the overburden layer lower part At least three-layer filter layer is laid, and the particle diameter of filter medium of at least three-layer filter layer continuously decreases from top to down, the filter material layer includes：

Wherein, the second porous water distribution communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer Pipe.Preferably, the recovery channel is the second cess, and porous rubble is laid around second cess.

Preferably, at least one layer of geotextile layer is set between the overburden layer and filter material layer.

Preferably, the discharge outlet of the sewage distributor box is not higher than the level height of water inlet, the level of the discharge outlet Height is consistent with the level height of the second porous water distributor of the Aerobic biological process device.

Preferably, the uniformly distributed aperture in middle and lower part of the described second porous water distributor, the second porous porous water distributor It is external wrap up plastic optical fibre layer, the external of plastic optical fibre layer wraps up on-woven geotextile layer；

The endcapped of the second porous water distributor, the inlet duct of connection straight up in the end；

The exhaust apparatus of the water inlet end connection of the second porous water distributor straight up, the height of the inlet duct are low In the exhaust apparatus.

Compared with prior art, the processing unit of distributed sewage described in the utility model is a kind of place located underground Reason system has the characteristics that management is simple, does not go up landscape destructively；At the anaerobic septic tank that sets gradually, mixed biologic filtering Manage device, sewage distributor box and aerobic biological treatment device implement multi-step integrated treatment for sewage, combine anaerobism, good Oxygen, anaerobism, the aerobic processing mode alternateed are conducive to utilize different types of microorganism, realize for water pollutant Efficient removal；

Wherein, anaerobic septic tank can remove a large amount of solid suspension, and larger molecular organics, which are degraded to small molecule, to be had Machine object improves the removal efficiency of pollutant；

In the aerobe filtration treatment area of mixed biologic filtration treatment device, aerobe can be formed on filter material layer Film, the microorganism in biomembrane converts organic nitrogen to nitrate nitrogen, and continues other organic matters of degrading, and realizes phosphorous chemical combination The efficient removal of object, nitrogenous compound, other organic matters；Carbon source material floor is filled in anaerobic organism filtration treatment area, is conducive to In the lower sewage of carbon-nitrogen ratio, nitrate transformation is that nitrogen is thoroughly removed from sewage by anaerobe；

The water level of sewage distributor box is maintained at the top of drainpipe, and the sewage in sewage distributor box is made to maintain anaerobic conditions within, The effect for continuing performance anaerobe degradation of contaminant, ensure that the flow by sewage distributor box at follow-up aerobe Aerobe reaction is fully carried out in reason device, prevents impact load；

It is arranged in last Aerobic biological process device, is fully filled with oxygen, discharge anaerobic biological process generates nitrogen, dioxy Change the gases such as carbon, further removes the pollutants such as phosphorus-containing compound, nitrogenous compound, other organic matters.

By processing unit described in the utility model handle water can direct recharge groundwater, can be used for peasant household and pour The seconary water uses such as fill, flush the toilet.

Description of the drawings

Fig. 1 shows the structure diagrams of the processing unit of distributed sewage；

Fig. 2 indicates the structural schematic diagram of Multi-level deflector anaerobic septic tank；

Fig. 3 indicates the structural schematic diagram of mixed biologic filtration treatment device in an embodiment；

Fig. 4 indicates the structural schematic diagram of mixed biologic filtration treatment device in another embodiment；

Fig. 5 indicates upside-down trapezoid dish structure schematic diagram；

Fig. 6 indicates the structural schematic diagram of sewage distributor box in an embodiment；

Fig. 7 indicates the structural schematic diagram of sewage distributor box in another embodiment；

Fig. 8 shows the structural schematic diagrams of Aerobic biological process device in an embodiment；

Fig. 9 indicates the structural schematic diagram of Aerobic biological process device in another embodiment；

Figure 10 indicates the structural schematic diagram of the first or second porous water distributor in an embodiment；

Figure 11 indicates the structural schematic diagram of the first or second porous water distributor in another embodiment.

Specific implementation mode

For a further understanding of the utility model, the utility model preferred embodiment is retouched with reference to embodiment It states, but it is to be understood that these descriptions are only the feature and advantage of further explanation the utility model, rather than to this practicality The limitation of novel claim.

The utility model embodiment discloses a kind of processing unit of distributed sewage, as shown in Figure 1, including passing sequentially through Anaerobic septic tank 1, mixed biologic filtration treatment device 2, sewage distributor box 3 and the aerobic biological treatment device of pipeline connection setting 4；

The anaerobic septic tank 1 divides for settling zone and reaction zone；

The mixed biologic filtration treatment device 2 includes the aerobe filtration treatment area set gradually from top to bottom and detests Oxygen biofiltration treatment region；In aerobe filtration treatment area, overburden layer and filter material layer are from top to bottom set gradually；It is described Aerobe filtration treatment area connects inlet duct；Anaerobic organism filtration treatment area is filled with carbon source material floor；

In Aerobic biological process device 4 described in discharge outlet, overburden layer and filter material layer are from top to bottom set gradually；It is described aerobic Biological treatment device connects inlet duct and exhaust apparatus.

According to the utility model, the anaerobic septic tank that sets gradually, mixed biologic filtration treatment device, sewage distributor box and Aerobic biological process device implements multi-step integrated treatment for sewage, combines anaerobism, aerobic, anaerobism, aerobic alternates Processing mode, be conducive to utilize different types of microorganism, realize efficient removal for water pollutant.Especially mix The combination of biofiltration processing unit, sewage distributor box and aerobic biological treatment device, using microorganism realize aerobic, anaerobism, It is aerobic to alternate effect, it is more advantageous to the removal for realizing the pollutants such as nitrogen, phosphorus.The utility model is related to the equal position of all devices In underground.

The processing unit of the utility model dispersing type sewage is originated by anaerobic septic tank first, which is set to underground, Using gravity, sewage enters anaerobic septic tank by water inlet pipe.It is outstanding that the anaerobic septic tank can remove the solid in sewage It float and realizes preliminary anaerobic effect, the larger molecular organics in sewage is degraded to small organic molecule.The anaerobism Septic tank is settling zone and reaction zone.The settling zone is used for the pretreatment of sewage, removes the primary solids suspended matter in sewage, Such as sludge, parasitic ovum, the reaction zone are acted on for anaerobic organism, it is preferred to use Multi-level deflector form, anaerobism therein Microorganism can be used for degrading larger molecular organics and further remove solid suspension, improve the removal efficiency of pollutant.

It is described as a preferred technical solution, as shown in Fig. 2, the anaerobic septic tank is Multi-level deflector anaerobic septic tank Reaction zone is Multi-level deflector reaction zone, and the anaerobic septic tank is made of impermeable material, settling zone and Multi-level deflector reaction zone It is separated by the first lower clapboard 101 being arranged in the anaerobic septic tank；The volume of the settling zone and Multi-level deflector reaction zone Than being preferably 1:1~1:1.5, more preferably 1:1；

Settling zone has the gradually inclined lead-in chamfered of the centre from the edge of bottom to bottom, preferably the two of bottom End is provided with inclined plate 103；Be conducive to the precipitation of the pollutants such as solid sludges and parasitic ovum；

At least one second lower clapboard 104 is arranged in the Multi-level deflector reaction zone, and second lower clapboard 104 will be described more Grade baffling reaction zone is divided into several compartments, and a upper spacer 105 is arranged in each compartment；Preferably, each compartment Volume it is equal；

The lower end of second lower clapboard is connected with the bottom of the Multi-level deflector reaction zone, the lower end of the upper spacer with The bottom of the Multi-level deflector reaction zone have gap so that the both sides of the upper spacer 105 be respectively formed it is lower to stream reaction zone With upward flow reaction zone；Preferably, the upward flow reaction zone and the lower width ratio to stream reaction zone are 5:1~7:1；It is preferred that , the lower end of the upper spacer 105 is connected with the deflector 107 being obliquely installed relative to the upper spacer, the deflector 107 Slanted angle with the upper spacer 105 is 45 °；

The top of the settling zone and the Multi-level deflector reaction zone is respectively equipped with mud-suction hole 106；Sludge after precipitation can It is discharged by the mud-suction hole 106；

Multi-level deflector anaerobic septic tank top is equipped with gas vent 108；The gas vent 108 can be several, use The gases such as methane of anaerobic processes generation are discharged；

Water inlet pipe 102 is set on the side wall of the settling zone, and the drainpipe is set on the side wall of the reaction zone；

The water inlet pipe 102 is relatively arranged on the both sides of the Multi-level deflector anaerobic septic tank with drainpipe 109；It is preferred that , water inlet pipe 102 is located at the middle and upper part of the Multi-level deflector anaerobic septic tank with drainpipe 109.

The settling zone of Multi-level deflector anaerobic septic tank described in the utility model can retain most solid suspension, Be provided with several upper spacers in matched Multi-level deflector reaction zone, sewage in Multi-level deflector reaction zone under second every Plate and upper spacer are flowed downward and are flowed up, make flow flow through total length increase, and the blocking of upper spacer and The deposition of sludge, biosolids are effectively retained.Moreover, under microbial population effect, along its length not The separation of production acid and aerogenesis is realized with compartment.

The drainpipe of the anaerobic septic tank connects mixed biologic filtration treatment device.

As shown in figure 3, the mixed biologic filtration treatment device includes the aerobe filtering set gradually from top to bottom Treatment region and anaerobic organism filtration treatment area.

Preferably, aerobe filtration treatment area is prismatic or cylindrical, and side wall 201 is antiseepage side wall.

In aerobe filtration treatment area, overburden layer and filter material layer are from top to bottom set gradually；

Preferably, the top in aerobe filtration treatment area is the overburden layer 202 that thickness is 100mm~150mm, institute State planting plants on overburden layer 202, at least three-layer filter layer is laid in the overburden layer lower part, and the filtrate of at least three-layer filter layer Grain size continuously decreases from top to down, and the filter material layer includes：

Positioned at the cobble filter layer 203 of 202 lower layer of the overburden layer, cobble grain size is 2~4cm, and cobble filter layer 203 is thick Degree is 140mm~150mm；

Positioned at the rubble filter layer 204 of 203 lower layer of cobble filter layer, the grain size of rubble is 1~2cm, rubble filtering The thickness of layer 204 is 140~150mm；

And the combination media filtration layer 205 positioned at 204 lower layer of rubble filter layer, combine filtrate grain size be 2~ The thickness of 4mm, combination media filtration layer 205 are 300~320mm.

Preferably, it is described combination filtrate be volcanic rock, zeolite, tyre crumbs and vermiculite mixture, volcanic rock, zeolite, The mass ratio of tyre crumbs and vermiculite is 1：1：1：1.Sewage cobble filter layer and rubble filter layer have occurred filtering and it is aerobic Biological effect removes the suspended matter in sewage, and organic matter is further degraded under microbial action, and organic nitrogen is in microorganism Ammonia nitrogen is converted under effect, ammonia nitrogen is further converted to nitrate.Filtrate is combined to ammonia nitrogen, nitrate nitrogen, phosphorus, other organic matters There is good adsorption effect, these pollutants are attracted on combination filtrate, and biological effect combination adsorption filtration effect, realization contains The efficient removal of phosphorus compound, nitrogenous compound, other organic matters.

Preferably, at least one layer of geotextile layer is set between the overburden layer and filter material layer.As shown in figure 4, overburden layer It is geotextile layer 208 between 202 and cobble filter layer 203.

In Fig. 3 and Fig. 4, communicated with the discharge outlet of the anaerobic septic tank is provided in the cobble filter layer 203 One porous water distributor 206；In figs. 3 and 4, the first porous water distributor 206 is cross section；The mixed biologic filtration treatment dress The water inlet set is connect with the water inlet of the first porous water distributor；

The endcapped of the first porous water distributor 206, the inlet duct 207 of connection straight up in the end. Preferably, the inlet end bending of the inlet duct 207 is downward, to increase air inlet effect, it is furthermore preferred that being filled in the air inlet The inlet end setting fan set.

Anaerobic organism filtration treatment area is set to the lower part in aerobe filtration treatment area, as sewage flows through aerobe Filtration treatment area, dissolved oxygen continuously decrease, into anaerobic organism filtration treatment area.At this point, the characteristics of accessing pending water, is：Nitrogen Exist mostly in the form of nitrate or nitrite, carbon-nitrogen ratio is low, is unfavorable for denitrification.

Preferably, anaerobic organism filtration treatment area is the prismatic table shape or truncated cone-shaped that upper end is small, lower end is big.The anaerobism Biofiltration treatment region side wall is antiseepage side wall, and bottom is antiseepage bottom, and inside is filled with carbon source material layer 209.Add carbon source Material layer 209 is conducive to the removal of nitrogen in the lower water of carbon-nitrogen ratio, effect of the organic nitrogen, ammonia nitrogen in water in nitrifying microorganisms Under be converted into nitrate, then denitrifying microorganism effect under be converted into nitrogen, thoroughly removed from water.Carbon source material is preferred For sawdust, sawdust, leaf, grass, hay, straw, compost, newspaper or charcoal；Preferably, anaerobic organism filtration treatment area It is also filled with water-keeping material, the water-keeping material includes sandy loam or activated sludge.Due to the anaerobic organism filtration treatment The material void filled in area is small, and flow slows down, and dissolved oxygen is consumed substantially, therefore becomes anaerobic zone, which mainly detests Oxygen animalcule degrades to the pollutant in water.

The drainpipe 210 communicated with the sewage distributor box is arranged in anaerobic organism filtration treatment area bottom.

In order to increase anaerobism effect, it is preferred that as shown in figure 5, being provided in anaerobic organism filtration treatment area several A inverted trapezoidal dish configuration being continuously arranged increases water flowing it is furthermore preferred that the inverted trapezoidal dish configuration inner wall is corrugated Resistance.The carbon source material layer is arranged in the inverted trapezoidal dish configuration, the inverted trapezoidal dish configuration be it is waterproof fall Trapezoidal disk, sidewall upper lay round hole 211.Water can be discharged by the round hole 211, below inverted trapezoidal dish configuration 212 setting drainpipes 210.

Preferably, the bottom of the inverted trapezoidal dish configuration is provided with the drainpipe in anaerobic organism filtration treatment area, The drainpipe is the first cess, the uniformly distributed aperture in middle and upper part of first cess, more than described first Porous material is laid around the drainpipe of hole.

The drainpipe of the anaerobic organism filtration treatment device is connect with the water inlet of sewage distributor box.The anaerobic organism The water being discharged in filtration treatment area drainpipe enters sewage distributor box.Water level in the sewage distributor box maintains to stablize, and keeps Anaerobic environment, has adjusted the flow velocity of water, and water is made to be filled by mixed biologic filtration treatment device smooth transition to Aerobic biological process It sets, makes Aerobic biological process device from the influence of impact load, preferably complete Aerobic biological process effect.As shown in fig. 6, The sewage distributor box is impermeable water tank 301, and water inlet 305 is set to discharge outlet 306 in opposite two side walls.

Preferably, the sewage distributor box is internally provided with immersible pump 302, and immersible pump 302 is by 303 He of upper floating ball liquid level meter Lower floating ball liquid level meter 304 controls.

After water level reaches upper floating ball liquid level meter 303, immersible pump is opened, and is drained；Water level reaches lower floating ball liquid level meter 304 Afterwards, immersible pump is closed, and stops draining.

The sewage distributor box and aerobic biological treatment device can also be configured according to topography.Preferably, such as Fig. 7 institutes Show, the discharge outlet 306 of the sewage distributor box is not higher than the level height of water inlet 305, the level height of the discharge outlet with The level height of second porous water distributor of the Aerobic biological process device is consistent.This kind of situation is being not provided with immersible pump Under the conditions of, realize the function of sewage distributor box.

The discharge outlet of the sewage distributor box is connect by pipeline with the water inlet of Aerobic biological process device.Preferably, As shown in figure 8, the side wall 402 of the Aerobic biological process device is preferably waterproof side wall,

Top is the overburden layer 403 that thickness is 100mm~150mm, planting plants on the overburden layer 403, the earthing At least three-layer filter layer is laid in 403 lower part of layer, and the particle diameter of filter medium of at least three-layer filter layer continuously decreases from top to down, the filter The bed of material includes：

Positioned at the cobble filter layer 404 of 403 lower layer of the overburden layer, cobble grain size is 2~4cm, and cobble filter layer 404 is thick Degree is 140mm~150mm；

Positioned at the rubble filter layer 405 of 404 lower layer of cobble filter layer, the grain size of rubble is 1~2cm, rubble filtering The thickness of layer 405 is 140~150mm；

And the combination media filtration layer 406 positioned at 405 lower layer of rubble filter layer, combine filtrate grain size be 2~ The thickness of 4mm, combination media filtration layer 406 are 300~320mm.Preferably, the combination filtrate is volcanic rock, zeolite, tire The mixture of particle and vermiculite, volcanic rock, zeolite, tyre crumbs and vermiculite mass ratio be 1：1：1：1.Sewage is filtered in cobble Layer and rubble filter layer have occurred filtering and aerobic biological effect, remove sewage in suspended matter, organic matter is in microbial action Under further degraded, organic nitrogen is converted into ammonia nitrogen under microbial action, and ammonia nitrogen is further converted to nitrate.Combination filter Material has good adsorption effect to ammonia nitrogen, nitrate nitrogen, phosphorus, organic matter, these pollutants are attracted on combination filtrate, simultaneously It is further degraded under the action of microorganism.

Preferably, at least one layer of geotextile layer is set between the overburden layer and filter material layer.As shown in figure 9, overburden layer It is geotextile layer 409 between 403 and cobble filter layer 404.

In the Aerobic biological process device, as shown in Figure 8 and Figure 9, it is provided in the cobble filter layer 404 and institute State the second porous water distributor 401 that the discharge outlet of sewage distributor box communicates；In figs. 8 and 9, the second porous water distributor 401 is Cross section；

The endcapped of the second porous water distributor, the inlet duct 407 of connection straight up in the end.It is preferred that The inlet end bending of the inlet duct 407 is downward, to increase air inlet effect, it is furthermore preferred that the inlet duct into Fan is arranged in gas end.The exhaust apparatus 408 of the water inlet end connection of the second porous water distributor straight up, the exhaust apparatus Upper-end bent it is downward, the inlet duct be less than the exhaust apparatus.Exhaust apparatus precise height from the ground and system Demand, local climate, edaphic condition, the slope etc. in soil are related.Preferably, the height of the inlet duct is less than exhaust apparatus At least 3 meters.Using the downward air inlet of upper-end bent and exhaust apparatus, the height difference of exhaust apparatus and inlet duct is kept, is fully filled Enter oxygen, discharge anaerobic biological process generates the gases such as nitrogenous gas and carbon dioxide, further removes phosphorus-containing compound, contains The pollutants such as nitrogen compound and other organic matters.

The bottom of the Aerobic biological process device can close and be connected with recovery channel can also directly with underground phase It is logical.When the bottom lock of the Aerobic biological process device, the second cess, the second porous draining is arranged in bottom Porous rubble is laid around pipe.It is discharged by the water of the Aerobic biological process device by the second cess is unified.

When the bottom of the Aerobic biological process device is directly communicated with underground, the combination media filtration layer directly with soil Ground contacts.

Preferably, as shown in Figure 10, the described first porous water distributor or the second porous water distributor include the concatenated master of S types Pipe 5011 is responsible on 5011 and several holes is arranged；One end of supervisor 5011 is water inlet 50111, and the other end is blind end 50112；

Either the first porous water distributor or the second porous water distributor include a porous supervisor as shown in figure 11 5011 and it is equally distributed, with several branched pipes 5012 for communicating of supervisor.One end of supervisor 5011 is water inlet 50111, separately One end is blind end 50112.Preferably, the middle and lower part of the described first porous water distributor or the second porous water distributor is uniformly distributed The external of aperture, the first porous water distributor or the second porous water distributor wraps up plastic optical fibre layer, the external packet of plastic optical fibre layer Wrap up in on-woven geotextile layer.Plastic optical fibre layer and on-woven geotextile layer can remove the suspended matter in water removal.

The invention also discloses a kind of sewage water treatment methods, are disperseed using the device described in above-mentioned technical proposal Sewage disposal.Include the following steps：

Pending sewage is passed through into anaerobic septic tank, removes solids and partial organic substances；It preferably, will be pending Sewage by anaerobic septic tank pass through Multi-level deflector anaerobic septic tank；

Sewage passes through aerobe and anaerobic bio-treated successively in mixed biologic filtration treatment device, and removal is nitrogenous Compound, phosphorus-containing compound, pathogenic microbes and other organic matters；

By sewage distributor box, smooth water flow's flow velocity；

It further purifies water by Aerobic Process for Treatment by Aerobic biological process device, obtains meeting discharge standard Water.Distributed sewage is handled using the device of the utility model, by experiment test, indices such as table 1 in treated water It is shown.

Water treatment agent treated water quality detection result prepared by table 1

Serial number	Parameter	Raw water	Water after processing
				1	Excrement colibacillus group	2.410⁵~2.410⁶A/L	<10/L
2	Solid suspension	300~600mg/L	<5mg/L
				3	CODcr	350~600mg/L	<10mg/L
4	BOD₅	150~350mg/L	<2mg/L
				5	TN	30~85mg/L	<5mg/L
6	TP	5~15mg/L	<0.3mg/L
				7	Ammonia nitrogen	20~75mg/L	<3mg/L

For a further understanding of the utility model, with reference to embodiment to provided by the utility model a kind of distributed dirty The processing unit of water is described in detail, and the scope of protection of the utility model is not limited by the following examples.

Embodiment 1

Multi-level deflector anaerobic septic tank：It is made of impermeable material, settling zone and Multi-level deflector reaction zone are by being arranged in institute The first lower clapboard stated in anaerobic septic tank separates；The volume ratio of the settling zone and Multi-level deflector reaction zone is 1:1；

Inclined plate is arranged in the both ends of settling zone bottom；

Second lower clapboard is arranged in the Multi-level deflector reaction zone, and second lower clapboard reacts the Multi-level deflector Differentiation is divided into 2 compartments, a upper spacer is arranged in each compartment, the volume of each compartment is equal；And under described second The lower end of partition board is connected with the bottom of the Multi-level deflector reaction zone, the lower end of the upper spacer and the Multi-level deflector reaction zone Bottom there is gap so that the both sides of the upper spacer be respectively under to stream reaction zone and upward flow reaction zone；Upper spacer Lower section is connected with the deflector being obliquely installed relative to the upper spacer, and the slanted angle of the deflector and the upper spacer is 45 °, the upward flow reaction zone and the lower width ratio to stream reaction zone are 5:1；The settling zone and Multi-level deflector reaction zone Top is respectively equipped with mud-suction hole；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

Water inlet pipe is relatively arranged on the both sides of the Multi-level deflector anaerobic septic tank with drainpipe；Water inlet pipe and drainpipe position In the middle and upper part of the Multi-level deflector anaerobic septic tank.

The water inlet that the discharge outlet of the Multi-level deflector anaerobic septic tank passes through pipeline and mixed biologic filtration treatment device Connection.

The mixed biologic filtration treatment device includes the aerobe filtration treatment area set gradually from top to bottom and detests Oxygen biofiltration treatment region.

Aerobe filtration treatment area is prismatic, and side wall is antiseepage side wall.

In aerobe filtration treatment area, the overburden layer that thickness is 100mm~150mm is from top to bottom set gradually, At least three-layer filter layer is laid in planting plants on the overburden layer, the overburden layer lower part, and the filtrate of at least three-layer filter layer Grain size continuously decreases from top to down, and the filter material layer includes：

The combination filtrate is the mixture of volcanic rock, zeolite, tyre crumbs and vermiculite, volcanic rock, zeolite, tyre crumbs Mass ratio with vermiculite is 1：1：1：1.

Wherein, the first porous water distribution communicated with the discharge outlet of the anaerobic septic tank is provided in the cobble filter layer Pipe；The water inlet of the mixed biologic filtration treatment device is connect with the water inlet of the first porous water distributor；

The endcapped of the first porous water distributor, the inlet duct of connection straight up in the end.It is described into The inlet end bending of device of air is downward, to increase air inlet effect.

The first porous water distributor includes a porous supervisor and several points equally distributed, communicated with supervisor Branch pipe.The uniformly distributed aperture in middle and lower part of the first porous water distributor, one layer of the external package of the first porous water distributor are thick Plastic optical fibre, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.Anaerobic organism filtration treatment area is set to aerobe The lower part in filtration treatment area is the prismatic table shape that upper end is big, lower end is small and upper end area and aerobe filtration treatment area bottom Area equation, side wall are antiseepage side wall, and bottom is antiseepage bottom, inside filling carbon source material layer.At the anaerobic organism filtering The drainpipe communicated with the sewage distributor box is arranged in the bottoms Li Qu.

The drainpipe of the anaerobic organism filtration treatment device is communicated with the water inlet of sewage distributor box.The sewage distribution Case is impermeable water tank, and water inlet is set to discharge outlet in opposite two side walls.

The sewage distributor box is internally provided with immersible pump, and immersible pump is by upper floating ball liquid level meter and lower floating ball liquid level meter control System.

The discharge outlet of the sewage distributor box is connect by pipeline with the water inlet of aerobic device.The Aerobic biological process Device is waterproof Aerobic biological process device.In the Aerobic biological process device, from top to bottom setting gradually thickness is The overburden layer of 100mm~150mm, planting plants on the overburden layer, one layer of geotextile layer is laid in the overburden layer lower part, described Three-layer filter layer is set under geotextile layer, and the particle diameter of filter medium of three-layer filter layer continuously decreases from top to down, the filter material layer packet It includes：

Positioned at the cobble filter layer of the geotextile layer lower layer, cobble grain size is 2~4cm, and cobble filtering layer thickness is 140mm~150mm；

And the combination media filtration layer positioned at rubble filter layer lower layer, the grain size for combining filtrate are 2~4mm, group The thickness for closing media filtration layer is 300~320mm；The combination filtrate is the mixing of volcanic rock, zeolite, tyre crumbs and vermiculite Object, volcanic rock, zeolite, tyre crumbs and vermiculite mass ratio be 1：1：1：1.

Wherein, the second porous water distribution communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer Pipe；The second porous water distributor includes a porous supervisor and several branched pipes equally distributed, communicated with supervisor. The uniformly distributed aperture in middle and lower part of the second porous water distributor, the plastics that external one layer of the package of the second porous water distributor is thick are fine Dimension, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.Plastic optical fibre and on-woven geotextiles can be gone in water removal Suspended matter.The endcapped of the second porous water distributor, the inlet duct of connection straight up in the end.The air inlet The inlet end bending of device is downward.The exhaust apparatus of the water inlet end connection of the second porous water distributor straight up, exhaust dress The upper-end bent set is downward.The inlet duct is less than the exhaust apparatus.The height of the inlet duct is less than exhaust apparatus 3 Rice.

The Aerobic biological process device bottom be waterproof bottom, bottom be arranged cess, porous draining Porous rubble is laid around pipe.It is discharged by the water of the Aerobic biological process device by cess is unified.

Embodiment 2

Inclined plate is arranged in the both ends of settling zone bottom；

Second lower clapboard is arranged in the Multi-level deflector reaction zone, and second lower clapboard reacts the Multi-level deflector Differentiation is divided into 2 compartments, a upper spacer is arranged in each compartment, the volume of each compartment is equal；

And the lower end of second lower clapboard is connected with the bottom of the Multi-level deflector reaction zone, the lower end of the upper spacer There is gap with the bottom of the Multi-level deflector reaction zone so that the both sides of the upper spacer be respectively formed it is lower to stream reaction zone and Upward flow reaction zone；Be connected with the deflector being obliquely installed relative to the upper spacer below upper spacer, the deflector with The slanted angle of the upper spacer is 45 °, and the upward flow reaction zone and the lower width ratio to stream reaction zone are 5:1；

The top of the settling zone and Multi-level deflector reaction zone is respectively equipped with mud-suction hole；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

In aerobe filtration treatment area, the overburden layer that thickness is 100mm~150mm is from top to bottom set gradually, Planting plants on the overburden layer, the overburden layer lower part lay one layer of geotextile layer, are arranged at least three under the geotextile layer Layer filter material layer, and the particle diameter of filter medium of at least three-layer filter layer continuously decreases from top to down, the filter material layer includes：

The first porous water distributor includes a porous supervisor and several points equally distributed, communicated with supervisor Branch pipe.The uniformly distributed aperture in middle and lower part of the first porous water distributor, one layer of the external package of the first porous water distributor are thick Plastic optical fibre, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.

Anaerobic organism filtration treatment area is set to the lower part in aerobe filtration treatment area, for the rib that upper end is big, lower end is small The area equation of platform shape and upper end area and aerobe filtration treatment area bottom, side wall are antiseepage side wall, and bottom is antiseepage bottom Several inverted trapezoidal dish configurations being continuously arranged are arranged in portion, inside.The carbon source material layer is arranged in the inverted trapezoidal dish-type In structure；The inverted trapezoidal dish configuration is waterproof inverted trapezoidal disk, and inner wall is corrugated, and sidewall upper lays round hole. Water can be discharged by the round hole, be provided with below inverted trapezoidal dish configuration inverted trapezoidal dish configuration and sewage distributor box phase Logical cess, the uniformly distributed aperture in middle and upper part of cess lay porous material around cess.

The cess is connected to the water inlet of sewage distributor box.The sewage distributor box is impermeable water tank, into The mouth of a river is set to discharge outlet in opposite two side walls.

The discharge outlet of the sewage distributor box is connect by pipeline with the water inlet of aerobic device.The Aerobic biological process Device is water tight apparatus.In the Aerobic biological process device, from top to bottom successively

The overburden layer that thickness is 100mm~150mm, planting plants on the overburden layer, overburden layer lower part cloth are set If one layer of geotextile layer, three-layer filter layer is set, and the particle diameter of filter medium of at least three-layer filter layer is from upper past under the geotextile layer Under continuously decrease, the filter material layer includes：

Wherein, the second porous water distribution communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer Pipe；The second porous water distributor includes a porous supervisor and several branched pipes equally distributed, communicated with supervisor. The uniformly distributed aperture in middle and lower part of the second porous water distributor, the plastics that external one layer of the package of the second porous water distributor is thick are fine Dimension, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.Plastic optical fibre and on-woven geotextiles can be gone in water removal Suspended matter.The endcapped of the second porous water distributor, the inlet duct of connection straight up in the end.The air inlet The inlet end bending of device is downward.The exhaust apparatus of the water inlet end connection of the second porous water distributor straight up, air inlet dress The upper-end bent set is downward.The inlet duct is less than the exhaust apparatus.The height of the inlet duct is less than exhaust apparatus At least 3 meters.

The bottom of the Aerobic biological process device is directly communicated with underground, and the combination media filtration layer is directly and soil Contact.

Embodiment 3

Inclined plate is arranged in the both ends of settling zone bottom；

Three the second lower clapboards are arranged in the Multi-level deflector reaction zone, and second lower clapboard reacts the Multi-level deflector Differentiation is divided into 4 compartments, a upper spacer is arranged in each compartment, the volume of each compartment is equal；

And the lower end of second lower clapboard is connected with the bottom of the Multi-level deflector reaction zone, the lower end of the upper spacer There is gap with the bottom of the Multi-level deflector reaction zone so that the both sides of the upper spacer be respectively formed it is lower to stream reaction zone and Upward flow reaction zone；Be connected with the deflector being obliquely installed relative to the upper spacer below upper spacer, the deflector with The slanted angle of the upper spacer is 45 °, and the upward flow reaction zone and the lower width ratio to stream reaction zone are 7:1；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

Water inlet pipe is relatively arranged on the both sides of the Multi-level deflector anaerobic septic tank with drainpipe；Water inlet pipe and drainpipe position In the top of the Multi-level deflector anaerobic septic tank.

Aerobe filtration treatment area is cylinder, and side wall is antiseepage side wall.

The first porous water distributor includes a porous supervisor and several points equally distributed, communicated with supervisor Branch pipe.The uniformly distributed aperture in middle and lower part of the first porous water distributor, one layer of the external package of the first porous water distributor are thick Plastic optical fibre, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.Anaerobic organism filtration treatment area is set to aerobe The lower part in filtration treatment area is the truncated cone-shaped that upper end is big, lower end is small and upper end area and aerobe filtration treatment area bottom Area equation, side wall are antiseepage side wall, and bottom is antiseepage bottom, several inverted trapezoidal dish-type knots being continuously arranged are arranged in inside Structure.The carbon source material layer is arranged in the inverted trapezoidal dish configuration；The inverted trapezoidal dish configuration is waterproof inverted trapezoidal Disk, inner wall is corrugated, and sidewall upper lays round hole.Water can be discharged by the round hole, inverted trapezoidal dish configuration The cess communicated with sewage distributor box, the uniformly distributed aperture in middle and upper part of cess, porous row is provided below Porous material is laid around water pipe.

The discharge outlet of the sewage distributor box is not higher than the level height of water inlet, the level height of the discharge outlet and institute The level height for stating the second porous water distributor of Aerobic biological process device is consistent.

The discharge outlet of the sewage distributor box is connect by pipeline with the water inlet of aerobic device.The Aerobic biological process Device is waterproof Aerobic biological process device.In the Aerobic biological process device, from top to bottom setting gradually thickness is The overburden layer of 100mm~150mm, planting plants on the overburden layer, one layer of geotextile layer is laid in the overburden layer lower part, described At least three-layer filter layer is set under geotextile layer, and the particle diameter of filter medium of at least three-layer filter layer continuously decreases from top to down, it is described Filter material layer includes：

Wherein, the second porous water distribution communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer Pipe；The second porous water distributor includes a porous supervisor and several branched pipes equally distributed, communicated with supervisor. The uniformly distributed aperture in middle and lower part of the second porous water distributor, the plastics that external one layer of the package of the second porous water distributor is thick are fine Dimension, the external of plastic optical fibre wrap up one layer of on-woven geotextiles.Plastic optical fibre and on-woven geotextiles can be gone in water removal Suspended matter.The endcapped of the second porous water distributor, the inlet duct of connection straight up in the end.The air inlet The inlet end of device is downward.The exhaust apparatus of the water inlet end connection of the second porous water distributor straight up, inlet duct Upper-end bent is downward.The inlet duct is less than the exhaust apparatus.The height of the inlet duct is less than exhaust apparatus at least 3 Rice.

Embodiment 4

Inclined plate is arranged in the both ends of settling zone bottom；

Two the second lower clapboards are arranged in the Multi-level deflector reaction zone, and second lower clapboard reacts the Multi-level deflector Differentiation is divided into 3 compartments, a upper spacer is arranged in each compartment, the volume of each compartment is equal；

And the lower end of second lower clapboard is connected with the bottom of the Multi-level deflector reaction zone, the lower end of the upper spacer There is gap with the bottom of the Multi-level deflector reaction zone so that the both sides of the upper spacer be respectively formed it is lower to stream reaction zone and Upward flow reaction zone；Be connected with the deflector being obliquely installed relative to the upper spacer below upper spacer, the deflector with The slanted angle of the upper spacer is 45 °, and the upward flow reaction zone and the lower width ratio to stream reaction zone are 6:1；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

The first porous water distributor is set in the cobble filter layer, and the first porous water distributor includes S type strings Several holes are arranged on supervisor in the supervisor of connection.The uniformly distributed aperture in middle and lower part of the first porous water distributor, the first porous cloth The external of water pipe wraps up one layer of thick plastic optical fibre, and the external of plastic optical fibre wraps up one layer of on-woven geotextiles.Anaerobic organism mistake Filter treatment region is set to the lower part in aerobe filtration treatment area, for upper end is big, lower end is small truncated cone-shaped and upper end area with it is good The area equation of oxygen biofiltration treatment region bottom, side wall are antiseepage side wall, and bottom is antiseepage bottom, several companies of inside setting The inverted trapezoidal dish configuration of continuous setting.The carbon source material layer is arranged in the inverted trapezoidal dish configuration；The inverted trapezoidal disk Type structure is waterproof inverted trapezoidal disk, and inner wall is corrugated, and sidewall upper lays round hole.Water can be arranged by the round hole Go out, the cess communicated with sewage distributor box is provided with below inverted trapezoidal dish configuration inverted trapezoidal dish configuration, it is porous The uniformly distributed aperture in middle and upper part of drainpipe lays porous material around cess.

Wherein, the second porous water distribution communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer Pipe；The second porous water distributor includes the concatenated supervisor of S types, several holes are arranged on supervisor.Outside second porous water distributor One layer of thick plastic optical fibre is wrapped up in portion, and the external of plastic optical fibre wraps up one layer of on-woven geotextiles.Plastic optical fibre and on-woven Geotextiles can remove the suspended matter in water removal.The endcapped of the second porous water distributor, the end connection vertically to On inlet duct.The inlet end bending of the inlet duct is downward.The water inlet end connection of the second porous water distributor is vertical The upper-end bent of upward exhaust apparatus, inlet duct is downward.The inlet duct is less than the exhaust apparatus.The air inlet dress The height set is less than at least 3 meters of exhaust apparatus.

The Aerobic biological process device bottom be waterproof bottom when, bottom be arranged cess, porous row Porous rubble is laid around water pipe.It is discharged by the water of the Aerobic biological process device by cess is unified.

The explanation of above example is only intended to the method and its core concept that help understands the utility model.It should refer to Go out, it for those skilled in the art, without departing from the principle of this utility model, can also be to this Some improvement and modification can also be carried out for utility model, these improvement and modification also fall into the protection domain of the utility model claims It is interior.

The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest range consistent with features of novelty.

Claims

1. a kind of processing unit of dispersing type sewage, which is characterized in that the anaerobism excrement including passing sequentially through pipeline connection setting Pond, mixed biologic filtration treatment device, sewage distributor box and aerobic biological treatment device；

The anaerobic septic tank is divided into settling zone and reaction zone；

The mixed biologic filtration treatment device includes the aerobe filtration treatment area set gradually from top to bottom and anaerobism life Object filtration treatment area；In aerobe filtration treatment area, overburden layer and filter material layer are from top to bottom set gradually；It is described aerobic Biofiltration treatment region connects inlet duct；Anaerobic organism filtration treatment area is filled with carbon source material floor；

In the Aerobic biological process device, overburden layer and filter material layer are from top to bottom set gradually；The Aerobic biological process dress Set connection inlet duct and exhaust apparatus.

2. the apparatus according to claim 1, which is characterized in that the anaerobic septic tank is Multi-level deflector anaerobic septic tank, The reaction zone is Multi-level deflector reaction zone, and the settling zone and Multi-level deflector reaction zone are by being arranged in the anaerobic septic tank The first lower clapboard separate；

The settling zone has the gradually inclined lead-in chamfered of the centre from the edge of bottom to bottom；The Multi-level deflector reaction At least one second lower clapboard is arranged in area, and the Multi-level deflector reaction zone is divided into several compartments by second lower clapboard, One upper spacer, and the bottom of the lower end of second lower clapboard and the Multi-level deflector reaction zone are set in each compartment It is connected, the lower end of the upper spacer and the bottom of the Multi-level deflector reaction zone have gap, so that the both sides of the upper spacer It is respectively formed lower to stream reaction zone and upward flow reaction zone；The top of the settling zone and the Multi-level deflector reaction zone is set respectively There is mud-suction hole；

Multi-level deflector anaerobic septic tank top is equipped with gas vent；

3. the apparatus of claim 2, which is characterized in that the upward flow reaction zone and the lower width to stream reaction zone Than being 5:1~7:1.

4. the apparatus of claim 2, which is characterized in that the lower end of the upper spacer be connected with relative on described every The slanted angle of the deflector that plate is obliquely installed, the deflector and the upper spacer is 45 °.

5. the apparatus according to claim 1, which is characterized in that the top in aerobe filtration treatment area is that thickness is At least three-layer filter layer is laid in the overburden layer of 100mm~150mm, planting plants on the overburden layer, the overburden layer lower part, and The particle diameter of filter medium of at least three-layer filter layer continuously decreases from top to down, and the filter material layer includes：

Positioned at the cobble filter layer of the overburden layer lower layer, cobble grain size is 2~4cm, cobble filter layer thickness be 140mm~ 150mm；

Positioned at the rubble filter layer of cobble filter layer lower layer, the grain size of rubble is 1~2cm, and the thickness of rubble filter layer is 140~150mm；

And the combination media filtration layer positioned at rubble filter layer lower layer, the grain size for combining filtrate are 2~4mm, combination filter Expect that the thickness of filter layer is 300~320mm；

Wherein, the first porous water distributor communicated with the discharge outlet of the anaerobic septic tank is provided in the cobble filter layer； The drainpipe communicated with the sewage distributor box is arranged in anaerobic organism filtration treatment area bottom.

6. device according to claim 5, which is characterized in that aerobe filtration treatment area is prismatic or cylinder Shape；Anaerobic organism filtration treatment area is the prismatic table shape or truncated cone-shaped that upper end is small, lower end is big.

7. the apparatus according to claim 1, which is characterized in that the anaerobic organism filtration treatment is provided with several in area The inverted trapezoidal dish configuration being continuously arranged, the carbon source material layer are arranged in the inverted trapezoidal dish configuration, the inverted trapezoidal The sidewall upper of dish configuration lays round hole；

8. device according to claim 5, which is characterized in that the middle and lower part of the first porous water distributor is uniformly distributed small Hole, the external of the first porous water distributor wrap up plastic optical fibre layer, and the external of plastic optical fibre layer wraps up on-woven geotextile layer；

9. the apparatus according to claim 1, which is characterized in that the sewage distributor box is internally provided with immersible pump, diving Pump is controlled by upper floating ball liquid level meter and lower floating ball liquid level meter；

After water level reaches upper floating ball liquid level meter, immersible pump is opened, and is drained；After water level reaches lower floating ball liquid level meter, immersible pump It closes, stops draining.

10. the apparatus according to claim 1, which is characterized in that the bottom lock of the Aerobic biological process device simultaneously connects It is connected to recovery channel, alternatively, the bottom of the Aerobic biological process device is directly communicated with underground；

The top of the Aerobic biological process device is the overburden layer that thickness is 100mm~150mm, plants and plants on the overburden layer Object, at least three-layer filter layer is laid in the overburden layer lower part, and the particle diameter of filter medium of at least three-layer filter layer gradually drops from top to down Low, the filter material layer includes：

Wherein, the second porous water distributor communicated with the discharge outlet of the sewage distributor box is provided in the cobble filter layer.

11. device according to claim 10, which is characterized in that the recovery channel is the second cess, described Porous rubble is laid around second cess.

12. the device according to claim 5 or 10, which is characterized in that be arranged at least between the overburden layer and filter material layer One layer of geotextile layer.

13. device according to claim 10, which is characterized in that the discharge outlet of the sewage distributor box is not higher than water inlet Level height, the level of the second porous water distributor of the level height of the discharge outlet and the Aerobic biological process device is high Degree is consistent.

14. device according to claim 10, which is characterized in that the middle and lower part of the second porous water distributor is uniformly distributed Aperture, the external of the second porous water distributor wrap up plastic optical fibre layer, and the external of plastic optical fibre layer wraps up on-woven geotextiles Layer；

The exhaust apparatus of the water inlet end connection of the second porous water distributor straight up, the height of the inlet duct are less than institute State exhaust apparatus.