CN109879536A - A kind of domestic sewage in rural areas purification system and purification method - Google Patents
A kind of domestic sewage in rural areas purification system and purification method Download PDFInfo
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- CN109879536A CN109879536A CN201910184933.3A CN201910184933A CN109879536A CN 109879536 A CN109879536 A CN 109879536A CN 201910184933 A CN201910184933 A CN 201910184933A CN 109879536 A CN109879536 A CN 109879536A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The present invention relates to a kind of domestic sewage in rural areas purification system and purification methods, the system comprises sequentially connected anaerobic pond (100), conditioning tank (200) and dense medium purifica tion slots (300), the sanitary sewage collected is passed through anaerobic pond (100), anaerobic pond (100) precipitates the particulate contaminant in sanitary sewage, and the place as anoxic and anaerobic reaction makes sanitary sewage carry out initial breakdown；Conditioning tank (200) collects the sanitary sewage of anaerobic pond (100) outflow, adjusts the water for entering dense medium purifica tion slot (300)；Packing medium is filled in dense medium purifica tion slot (300), sanitary sewage flows into filler, through the interaction with filler, completes purified treatment, purification system is discharged.Purification system and purification method in the present invention can be realized the deep layer purification of sanitary sewage by anaerobic pond, the multistep treatment of conditioning tank and dense medium purifica tion slot, and system structure advantages of simple, it is not required to high cost investment, later period operation maintenance is simple, is suitable for promoting the use of in rural area.
Description
Technical field
The invention belongs to technical field of sewage, it is related to a kind of sewage purification system and purification method, especially suitable for
The purification of water quality of domestic sewage in rural areas.
Background technique
While rapid economic development, rural environmental pollution problem is outstanding day by day.According to official statistics, in the whole nation in 2016
Rural area generates sanitary sewage hundred million tons about more than 80, and 96% village does not have discharge conduit and a sewage disposal system, sanitary sewage with
Meaning discharge.Untreated sanitary sewage discharges wantonly, seriously polluted the ecological environment in rural area, directly threat vast farmers group
The economic development of many health and rural area.On the other hand, untreated sanitary sewage flows automatically to the river of hypsography low-lying
In the surface water bodies such as stream, lake and pond, contaminated waters also at the source of disease spread of infection, is be easy to cause partly
The generation and prevalence of area's infectious disease, endemic disease and zoonosis.
The random discharge of domestic sewage in rural areas, which constitutes the ecological environment in rural area, to be seriously threatened, and is researched and developed to adaptation to local conditions suitable
The New Technologies for closing rural scattered domestic sewage processing are the key points for solving the problems, such as Rural Water Pollution.
The surface water main indicator such as organic matter, nitrogen, phosphorus concentration is high in sanitary sewage, it is desirable that the handling rate for the treatment of facility compared with
Height, and due to the distribution status and total amount in rural area, and the construction and operation investment to single treatment facility are constrained, this is to processing
Technique, construction period investment, more stringent requirements are proposed for later period operation and maintenance.
Domestic sewage main process is septic tank+grid+anaerobism+aerobic+precipitating at present.Handling principle is benefit
Organic pollutants are consumed with itself of microorganism and bacterium metabolism, are reached by nitration denitrification reaction
Purpose of purifying the water quality.Anoxic section and back segment aerobic section are cascaded by the technique, can complete C, N, O following in ecology
Ring realizes sewage harmless treatment.The environment that the technique mainly brings suitable growth to breed using electromechanical equipment for microorganism,
Need to build the activity space that microorganism depends on for existence in the middle, and since the management to microorganism is not in place and environment temperature
Limitation, clean-up effect is not able to satisfy the requirement of GB 18918-2002 " urban wastewater treatment firm pollutant emission standard ", especially
It is the removal difficulty deficiency to total phosphorus (TP).
There are also the embrane methods that one kind came into vogue in recent years to handle country sewage.Its main technique is bio-contact oxidation+MBR
Film+disinfection.The treatment process effluent quality can reach emission request without precipitating, and effluent quality is good.But MBR film sheet as
A kind of enervated material of high value, equipment operation must be carried out in strict accordance with operation regulations, periodically be cleaned.Biomembrane uses
It is 2-3 under life standard situation, 2 years seldom, later period renewal cost valuableness can be used in actual use.
Therefore, it is necessary to provide a kind of agriculture stable, treatment effeciency is high, effluent quality is up to standard and construction cost is low
Village's domestic sewage purification system and purification method.
Summary of the invention
In order to solve the above-mentioned technical problem, present inventor has performed sharp studies, and agriculture can directly be handled by providing one kind
Village's sanitary sewage, high treating effect, the purification system for being able to solve conventional purge technology effluent quality difference problem.The system includes
Anaerobic pond, conditioning tank and dense medium purifica tion slot, by oil removing-precipitating-anaerobic acidification in anaerobic pond, the dissolution oxygen-in conditioning tank
Biologic float bed purification realizes the deep layer purification of sanitary sewage in dense medium purifica tion slot dielectric layer+microbial cleaning, and water outlet is full
Foot " urban wastewater treatment firm pollutant emission standard " requirement, and system structure advantages of simple are not required to high cost investment, later period fortune
Battalion's maintenance is simple, is suitable for promoting the use of in rural area, thereby completing the present invention.
The purpose of the present invention is to provide following technical schemes:
(1) a kind of domestic sewage in rural areas purification system, wherein the purification system include sequentially connected anaerobic pond 100,
Conditioning tank 200 and dense medium purifica tion slot 300,
The sanitary sewage collected is passed through anaerobic pond 100, and anaerobic pond 100 precipitates the particulate contaminant in sanitary sewage, and makees
Sanitary sewage is set to carry out initial breakdown for the place of anoxic and anaerobic reaction；
Conditioning tank 200 collects the sanitary sewage that anaerobic pond 100 flows out, and adjusts the water for entering dense medium purifica tion slot 300；
Packing medium is filled in dense medium purifica tion slot 300, sanitary sewage flows into filler, complete through the interaction with filler
At purified treatment, purification system is discharged.
(2) a kind of purification method of domestic sewage in rural areas, this method preferably pass through the reality of purification system described in above-mentioned (1)
It applies.
A kind of domestic sewage in rural areas purification system and purification method provided according to the present invention, has the advantages that
(1) in the present invention, the setting of oil separating plate and oil exit pipe in anaerobic pond can will enter in water to be difficult to degrade and influence system
The oily waste degradation for normal operation of uniting is promoted obvious without the treatment effeciency of greasy dirt or the sewage for containing only a small amount of greasy dirt；
(2) in the present invention, the installation of supersonic generator in anaerobic pond conducive to the formation of anaerobic environment, and promotes acidification
The anaerobic reactions such as degradation；
(3) in the present invention, it is made biologic float bed using simple material in conditioning tank, biologic float bed delicate structure, drinking water
Depth facilitates adjusting, and biologic float bed upper root system of plant can gather place as microorganism, be conducive to dirty to nitrogen, phosphorus and suspended matter etc.
Contaminate the removal of object；
(4) in the present invention, muskeg layer surface plants reed, cattail, calamus or wild rice, these regioselective plant are not
Only vitality is strong, high survival rate, and its it is horizontal walk rhizomes can underground in length and breadth in flakes, generate root channel, constitute flourishing
Soil macropore network, provide good growth interface and condition for microorganism, the purification and degradation of pollutant played
Important function；
(5) muskeg layer middle and lower part be laid with pvc pipe net, simulating plant root hole, pvc pipe net surface gather crackle and thoroughly
The being completely embedded property between artificial root hole and root system of plant is reinforced in hole, and root system of plant enters in pvc pipe net, and microorganism liveness mentions
Height, pvc pipe net is interior to be improved the detergent power of sewage；
(6) in the present invention, the introducing of earthworm in dense medium purifica tion slot can increase the system service life, the movement of earthworm and
Excreta is very useful to the quality for improving soil, and the gas permeability of soil can be made to keep well making soil conservation health status, from
And provide sewage treating efficiency.
Detailed description of the invention
Fig. 1 shows a kind of domestic sewage purification system structural schematic diagram of preferred embodiment in the present invention；
Fig. 2 shows the structures of guide bar relevant apparatus in the first segment anaerobic pond of preferred embodiment a kind of in the present invention to show
It is intended to；
Fig. 3 shows a kind of structural schematic diagram of the dense medium purifica tion slot of preferred embodiment in the present invention.
Drawing reference numeral explanation:
100- anaerobic pond；
110- supersonic generator；
120- oil separating plate；
130- oil exit pipe；
140- guide bar；
150- draw bar；
160- draws sleeve；
170- capstan winch；
200- conditioning tank；
210- microporous aeration disc；
220- is biologic float bed；
230- carbon fibre ecological grass；
300- dense medium purifica tion slot；
310- muskeg layer；
311- irrigation canals and ditches；
312-PVC pipe network；
320- regulating course；
330- supporting layer.
Specific embodiment
Present invention will now be described in detail, and the features and advantages of the invention will become more with these explanations
It is clear, clear.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the attached drawings
In terms of kind, but unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
As shown in Figure 1, the purpose of the present invention is to provide a kind of domestic sewage in rural areas purification system, the purification system
Including sequentially connected anaerobic pond 100, conditioning tank 200 and dense medium purifica tion slot 300,
Wherein, the sanitary sewage collected is passed through anaerobic pond 100, and anaerobic pond 100 precipitates the particulate contaminant in sanitary sewage,
And the place as anoxic and anaerobic reaction makes sanitary sewage carry out initial breakdown, such as the degradation of larger molecular organics, improves life
Biochemical wastewater treatment feasibility living；
Conditioning tank 200 collects the sanitary sewage that anaerobic pond 100 flows out, and adjusts the water for entering dense medium purifica tion slot 300, makes to be situated between
Matter purification tank 300 is intake uniformly；Due to the inhomogeneities of sanitary sewage distribution and yield, conditioning tank 200 is set as a whole set of system
The stable water outlet of system provides certain guarantee；
Packing medium is filled in dense medium purifica tion slot 300, sanitary sewage flows into filler, complete through the interaction with filler
At purified treatment, purification system is discharged.
In the present invention, the anaerobic pond 100 is three-stage anaerobic pond 100, and water inlet introduces sanitary sewage high water level
In first segment anaerobic pond, overflow plate is erect between first segment anaerobic pond, second segment anaerobic pond and third section anaerobic pond, the last period detests
Sewage in oxygen pond enters latter section of anaerobic pond by overflow.
In current large-scale wastewater treatment plant sewage treatment, anaerobic pond 100 builds anaerobism ring by improving the load to water
Border, however the processing of domestic sewage in rural areas is unsuitable for using high load capacity as large-scale wastewater treatment plant there are dispersion feature
Anaerobic environment is obtained, anaerobic pond 100 is difficult to really realize anaerobic environment, the vigor and the acid in anaerobic pond 100 of anaerobic bacteria
Changing degradation efficiency, there are rooms for promotion.
The present inventor is equipped with supersonic generator 110 (such as probe type ultrasonic wave producer) in third section anaerobic pond, excellent
It is selected in the middle part of the pond body of third section anaerobic pond and supersonic generator 110 is installed, and propagate the ultrasonic wave tilt issued upward.It is fixed
Phase opens supersonic generator 110 and carries out sound wave shock to sewage in third section anaerobic pond, promotes exhaust, can obtain more tight
The anaerobic environment of lattice.In this way, first segment anaerobic pond and second segment anaerobic pond are able to carry out anaerobism and amphimicrobian activity, and can
To guarantee that third section anaerobic pond implements stringenter anaerobic activity, microbial reaction diversification and there is regional level.
In a kind of preferred embodiment of the present invention, oil separating plate 120 is set near the water outlet of first segment anaerobic pond,
The plate face of oil separating plate 120 is fixed towards water inlet in 45 ° of directions, and 120 lower end of oil separating plate is immersed in sanitary sewage.
Further, oil exit pipe 130, oil removal are arranged at the front end of first segment anaerobic pond and height identical as water inlet
Greasy dirt in sanitary sewage is placed in the front end of first segment anaerobic pond by plate 120, and then can be discharged by oil exit pipe 130.
Further, protrude on 130 tube wall of oil exit pipe of sanitary sewage, be densely covered with outage, outage aperture between
Between 0.1~1.5mm.
In a kind of preferred embodiment of the present invention, observation is set at setting height on the pond body wall of each section of anaerobic pond
Window, or the liquidometer outside each section of anaerobic pond pond body wall inside each section of anaerobic pond of setting connection, pass through watch window or liquid
Sewage highly and oil reservoir height in the meter each section of anaerobic pond of observation of position.Wherein, observation panel can be toughened glass window mouth, height section
Meet the water inlet height of observation anaerobic pond 100.
In a kind of preferred embodiment of the present invention, in first segment anaerobic pond, the oil exit pipe 130 in sanitary sewage is protruded into
The a plurality of branch positioned at sustained height or plane pipe network are formed, multiple regions can be pumped simultaneously in oil reservoir, and reduction pair
The extraction of water.
Further, as shown in Fig. 2, the oil exit pipe 130 protruded into sanitary sewage and level are fixed on first segment anaerobic pond
In guide bar 140 it is affixed；The length direction and oil exit pipe 130 of guide bar 140 are consistent, and close to the end of pond body wall surface, connection can
The draw bar 150 for driving guide bar 140 to move up and down, draw bar 150 are located in traction sleeve 160, the connection of 150 top of draw bar
Traction rope, traction rope draw anaerobic pond 100, fixed by the capstan winch 170 being located at outside anaerobic pond 100.
In this way, observing oil reservoir position by watch window or liquidometer, it is high to adjust guide bar 140 by folding and unfolding traction rope
Degree drives oil exit pipe 130 to move up and down, the oil reservoir in extraction anaerobic pond 100 that can be flexible and convenient.
Inevitable trapped fuel in sanitary sewage, greasy dirt are difficult to degrade, and also will affect into sewage disposal system wherein active
The function of unit, thus oil removing is related to wastewater purifying efficiency.In the present invention, by the oil separating plate 120 and oil draining system of setting,
It being capable of oil-containing in simple and effective removing sanitary sewage.
In a kind of preferred embodiment of the present invention, polyP bacteria is added in second segment anaerobic pond, polyP bacteria is in this anoxic
The poly- phosphorus of dephosphorization-in environment, when polyP bacteria enters in subsequent existing aerobic region with sanitary sewage, due to passing through anaerobic environment
The poly- phosphorus ability of polyP bacteria afterwards gets a promotion, and is conducive to dephosphorization in aerobic environment.
Biological ceramic particle and denitrifying bacteria are added in third section anaerobic pond, wherein biological ceramic particle is a kind of novel life
Object membrane carrier filtrate, has many advantages, such as light, and large specific surface area, adsorption capacity are strong, and biology pottery is added in third section anaerobic pond
Grain is conducive to denitrifying bacterium biofilm formation growth, keeps biological bacteria state.
In the present invention, conditioning tank 200 is the caching container of sanitary sewage, passes through high-order drainage pipeline and anaerobic pond 100
(third section anaerobic pond) connection.
In a kind of preferred embodiment of the present invention, 200 bottom of conditioning tank is equipped with microporous aeration disc 210, increase into
Enter the dissolved oxygen amount of sewage in dense medium purifica tion slot 300.Preferably, microporous aeration disc 210 is adopted by solar energy aeration machine band pneumatic aeration
Use clean energy resource solar energy as power.
Oxygen is exposed in conditioning tank 200, increases the dissolved oxygen amount in the sanitary sewage for entering dense medium purifica tion slot 300, is dense medium purifica tion
The aerobic reaction of plant and microorganism provides oxygen source in slot 300.
In a kind of preferred embodiment of the present invention, 200 surface of conditioning tank is covered by biologic float bed 220, the biology
Floating bed 220 includes the biological bed body that can be swum on water body and the plant being fixed in biological bed body.
The biology bed body is to be arranged by the pvc pipe of fixation with steel wire, the arrangement of Guan Paizhong pvc pipe transverse and longitudinal, any two row or two column
Report to the leadship after accomplishing a task generation gap in be inserted into pvc pipe, as plant growing container.
The present invention using tubing itself in water be easy suspend the characteristics of, and by pipe arrange in transverse and longitudinal arrangement all or part
The both ends of pvc pipe block, and keep its hollow, provide buoyancy, and changing according to biologic float bed 220 weight for biological bed body floating
Become, or to biologic float bed 220 water depth adjustment, adjust the quantity of closure.The quantity of closure is reduced, and biology is floating
The position of bed 220 moves down；The quantity of closure increases, and biologic float bed 220 position moves up.
As the pvc pipe of plant growing container, for caliber between 5~40cm, depth in water is no more than 1m, so that
Must plant can be outside protruded tube in the root of plant therein.Preferably, plant chooses throughout the year raw very water crop, such as reed, perfume (or spice)
Pu, calamus or wild rice etc..
Further, in biologic float bed 220 lower suspension carbon fibre ecological grass 230, make in conditioning tank 200 suitable one
Subregion becomes carbon fibre ecological grass 230 and imitates root distributed areas.
Plant root and carbon fibre ecological grass 230 all have high adsorptivity and bioaffinity, microbial flora
Adherence active biological film can be formed on its surface: on the one hand, which passes through the absorption to organic pollutant, biological oxidation
Etc. links, degraded, converted to the organic pollutant in water body in conjunction with oxygenous fluid；In another aspect, biomembrane increases
With the contact of suspended matter in sanitary sewage, promote the little particle suspended solid not removed in anaerobic pond 100 in this contact process
Sufficiently sedimentation extends the service life of subsequent medium purification tank 300；In another aspect, the formation of biomembrane increases biological respinse
Interface, Microbial denitrogenation phosphorus removal functional are active.
In the present invention, dense medium purifica tion slot 300 is sheet building, from top to bottom includes muskeg layer 310, regulating course
320 and supporting layer 330, wherein
Surface layer to its lower 130~150cm stage is muskeg layer 310, wherein being laid with soil, and planting aquatic plants；
It is regulating course 320 at the lower 30~50cm of muskeg layer 310, solid particle medium is equipped with, to implement pollutant
Absorption；
It is supporting layer 330 at the lower 10~20cm of regulating course 320, the filler on its upper layer is used to support, conducive to being discharged after processing.
In the present invention, as shown in figure 3,310 top of muskeg layer digs a plurality of irrigation canals and ditches 311, trench depth is 40~
50cm, 311 low-lying of irrigation canals and ditches make muskeg layer 310 have the ground table status to rise and fall.
The plant of 310 surface of muskeg layer plantation is wetland aquatic macrophyte, including reed, cattail, calamus or wild rice
One of or it is a variety of.These plants have a flourishing rhizomes, especially it is horizontal walk rhizomes, underground can in length and breadth in flakes,
Root channel is generated, constitutes flourishing soil macropore network, this is that other water plants cannot compare.Root channel is
Plant root growth and death leave the duct to be formed after rotting in the soil, are an important kinds of soil macropore.
Root channel is the multimedium interface between plant and soil, is made of water, gas, soil, microorganism and root system of plant, is one
Multi-level interface system, the transmission of moisture, solute and air, provides good growth interface and item for microorganism in gap
Part plays an important role to the purification and degradation of pollutant.Further, the present invention in above-mentioned plant have to phosphorus it is permanently effective
Removal effect.The removal of phosphorus generally only relies upon the absorption of packing medium, and filling adsorption after reaching the upper limit, phosphorus in water outlet
Content is then easy exceeded, and the present inventor has found, reed, cattail, calamus or wild rice are in phosphorus-containing wastewater by studying for a long period of time
Phosphorus has stronger intake ability, there is greater advantage in terms of phosphorus ligands.
In the present invention, the construction of a plurality of irrigation canals and ditches, not only for convenient for the introducing conditioning tank 200 into dense medium purifica tion slot 300
In water, it is even more important that plant grows in different height, root system is different in the extension section of subsurface, so that root system
Distribution is bigger, and water plant is dropped supplemented by dirt compared to tradition based on landscape, undertakes more impurity removal functions.
In the present invention, 310 height of muskeg layer is based primarily upon root system of plant length and sewage process up to 130~150cm
Two aspect factors consider that the water plant well developed root system selected in the present invention, it is unfavorable that 310 height of muskeg layer is lower than 100cm
It is formed in root hole network, while in view of soil horizon is to the deep purifying effect of sanitary sewage, providing enough waterpower for sewage
Process, so selecting 310 height of muskeg layer is 130~150cm.
In a preferred embodiment, level is laid with pvc pipe at the middle and lower part different height of muskeg layer 310
Net 312, the pvc pipe net 312 include the numerous branched pipes being distributed in length and breadth, can separate sub- branched pipe again on each branched pipe, point
Intercommunication between branch pipe/Asia branched pipe forms pvc pipe net.
Preferably, in pvc pipe net 312 between branched pipe, between sub- branched pipe, the caliber between branched pipe-Asia branched pipe
It can be the same or different, it is preferably different.The diameter of pipe is between 0.5~2cm in pvc pipe net 312, and selects in the present invention
The root hole that plant root is formed is suitable.
In the present invention, pvc pipe net 312 is filled in muskeg layer 310 as artificial root hole, due in the present invention
Pvc pipe net, mainly with cross direction profiles and based on diagonally distributing, is lateral row in 100cm depth by the water plant root system of selection
Cloth.Pvc pipe net has the effect that a. provides absorption, conversion and degradation for nutritive salt and other pollutants as artificial root hole
Place；B. the path of priority migration is provided for gases such as oxygen and carbon dioxide, changes redox state in soil, for dirt
It contaminates object degradation and changeable environment is provided.
In a preferred embodiment, 10~25 layers of pvc pipe net 312 are laid in muskeg layer 310.
In a preferred embodiment, gather crackle on pvc pipe net 312 surface, and crackle allows moisture to enter pvc pipe,
And it is not easy by soil clogging.
Preferably, open-work is also distributed in 312 surface of pvc pipe net, which is preferably between 0.1~0.6cm, thoroughly
The presence in hole makes root system of plant have an opportunity to enter inside pvc pipe net, reinforces being completely embedded between artificial root hole and root system of plant
Property, root system of plant enters in pvc pipe net, and microorganism liveness improves, and can be mentioned in pvc pipe net to the detergent power of sewage
It is high.
In a preferred embodiment, carbon source is added in 310 upper zone of muskeg layer, to muskeg
Earthworm is launched in layer 310, muskeg layer 310 is made to be converted into earthworm bed.The throw-in density of earthworm is 5g~8g (earthworm)/(L is filled out
Material).Wherein, carbon source includes but is not limited to stalk, sawdust, mushroom bran, straw etc..
The introducing of earthworm in the present invention makes full use of the synergistic effect of earthworm and microorganism convenient for the dense medium purifica tion slot 300,
And the functions such as venting and water permeable, organic matter of eating of earthworm, it is more effectively carried out sewage treatment.Earthworm can not only be in muskeg
Degradation of organic substances in layer 310, can also be ground by its gizzard with the biological chemistry action of enteron aisle, and cooperate with microorganism
Effect promotes the conversion and mineralising of C, N, P, but its major function is the mechanical loose, resolution in soil mobile layer, to wetland
Vegetable layer 310 plays the role of physics cleaning, keeps soil from packing together, blocks.Activity of the earthworm in muskeg layer 310 can also have
Effect improves micro organism quantity and microbial activity, promotes the decomposition and inversion of organic substance.
In the present invention, filler is zeolite in regulating course 320.Zeolite is the general name of aqueous porous silicoaluminate, crystallization
Construction is mainly made of (SiO) tetrahedron.Al3+And Si4+The whole of zeolite molecules is together formed as framework ion and oxygen atom
Body frame, part Si4+For Al3+Replace, it is superfluous to lead to negative electrical charge, while having cavity and the duct of certain pore size in zeolite framework,
Determine that it has the property of absorption and ion exchange, the adsorbed stationary phase of absorption and heavy metal to ammonia nitrogen is compared with other mines
Stone raw material has bigger advantage, has the characteristics of " quick adsorption slowly balances ".
Further, the partial size of zeolite is 0.5~5cm in regulating course 320, between the grain of soil and 330 filler of supporting layer
Between diameter, while with pollutants such as efficient absorption ammonia nitrogens, crown_interception is played to soil.
In the present invention, gravel particle is filled in supporting layer 330.Collector pipe is buried in supporting layer 330, which is interior
The pvc pipe of 5~10cm of diameter is densely covered with the gully-hole of 1~10mm on tube wall.
Preferably, which is the geotextiles for wrapping up stone.By the protection of stone and geotextiles, collector pipe
Gully-hole be difficult to by dense medium purifica tion slot 300 soil and handstone blocking, be conducive to draining.
In of the invention, sewage enters dense medium purifica tion slot 300, is discharged after a series of physical, chemistry, biological respinse.It is raw
Sewage living is oxygen-containing to be gradually consumed during downward infiltration, successively undergoes aerobic-simultaneous oxygen-anaerobic reaction, a variety of reactions
The presence of form, conducive to the removal to nitrate/nitrite, ammonia nitrogen, phosphorus.
Another aspect of the present invention is to provide a kind of purification method of domestic sewage in rural areas, and this method preferably passes through upper
State purification system implementation.
Embodiment
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of domestic sewage purification system and the purification method using the purification system, the purification
System includes sequentially connected anaerobic pond 100, conditioning tank 200 and dense medium purifica tion slot 300.
Anaerobic pond 100 divides for first segment anaerobic pond, second segment anaerobic pond and third section anaerobic pond, erects between each section of anaerobic pond
Overflow plate is found, the sewage in the last period anaerobic pond enters latter section of anaerobic pond by overflow.On the pond body wall of each section of anaerobic pond
Tempered glass window is set at setting height, and it is high to observe sewage highly and oil reservoir in each section of anaerobic pond by tempered glass window
Degree.It is equipped with supersonic generator in the middle part of third section anaerobic pond pool wall, and propagates the ultrasonic wave tilt issued upward, in anaerobic pond
After middle water inlet, open supersonic generator about 10 minutes.
Oil separating plate 120 is nearby arranged in the water outlet of first segment anaerobic pond, and 120 plate face of oil separating plate is in 45 ° of sides towards water inlet
To fixation, 120 lower end of oil separating plate is immersed in sanitary sewage.At the front end of first segment anaerobic pond and height identical as water inlet
It arranges oil exit pipe 130, on 130 tube wall of oil exit pipe, is densely covered with outage, outage aperture is between 0.1~1.5mm, oil removal
Greasy dirt in sanitary sewage is placed in the front end of first segment anaerobic pond by plate 120, and then can be discharged by oil exit pipe 130.
The oil exit pipe 130 protruded into sanitary sewage and the guide bar 140 that level is fixed in first segment anaerobic pond are affixed；It leads
Draw 140 length direction of bar and oil exit pipe 130 is consistent, connection can drive guide bar 140 to move up and down close to the end of pond body wall surface
Draw bar 150, draw bar 150 be located at traction sleeve 160 in, 150 top of draw bar connect traction rope, traction rope draw anaerobism
Pond 100, it is fixed by capstan winch 170.It is able to drive on oil exit pipe 130 and is moved down by folding and unfolding traction rope adjustment 140 height of guide bar
It is dynamic.
PolyP bacteria is added in second segment anaerobic pond, polyP bacteria concentration therein is made to reach about 1 × 108A/mL.Third section is detested
The biological ceramic particle of denitrifying bacteria attachment is added in oxygen pond, denitrifying bacteria generates the biomembrane of thickness about 1cm on biological ceramic particle.
200 bottom of conditioning tank is equipped with microporous aeration disc, and power is solar energy, and oxygen is exposed into conditioning tank, increases and enters Jie
Dissolved oxygen amount in the sanitary sewage of matter purification tank 300.200 surface of conditioning tank is covered by biologic float bed 220.The biology bed body is
Arranged by the pvc pipe of fixation with steel wire, the arrangement of Guan Paizhong pvc pipe transverse and longitudinal, any two row or two column report to the leadship after accomplishing a task generation gap in be inserted into
Pvc pipe, the growing container as plant (reed).The both ends of whole pvc pipes of transverse and longitudinal arrangement block in pipe row, keep its hollow,
For biological bed body floating buoyancy is provided, the depth of the pvc pipe as plant growing container in water be no more than 1m so that plantation in
It the root of plant therein can be outside protruded tube.Further, in biologic float bed 220 lower suspension carbon fibre ecological grass 230,
Length is at least up to underwater 1m.
Dense medium purifica tion slot 300 from top to bottom includes tune of the surface layer to the muskeg layer 310 of 150cm, depth 30cm under it
The supporting layer 330 of ganglionic layer 320 and depth 20cm.310 top of muskeg layer digs the irrigation canals and ditches that a plurality of depth is 40~50cm
311, introduce conditioning tank in irrigation canals and ditches treated sewage.Planting reed in muskeg layer, wherein 60cm with down toward
11 layers of pvc pipe net are laid in 150cm depth bounds, gather crackle and open-work on pvc pipe net 312 surface, and open-work aperture is 0.2cm.
The zeolite granular that partial size is 0.5~5cm is laid in regulating course 320；Gravel particle, and embedded collector pipe are filled in supporting layer 330,
The collector pipe is the pvc pipe of 5~10cm of internal diameter, and the gully-hole of 1~10mm is densely covered on tube wall.Collector pipe periphery is package stone
Geotextiles.By the protection of stone and geotextiles, the gully-hole of collector pipe is difficult to by soil in dense medium purifica tion slot 300 and small
Stone blocking, is conducive to draining.
Embodiment 2
Purification system and purification method and embodiment 1 are consistent, and difference is only that, is stopped using and is installed in third section anaerobic pond
Supersonic generator.
Embodiment 3
Purification system and purification method and embodiment 1 are consistent, and difference is only that, stops using the row in first segment anaerobic pond
Oily equipment.
Embodiment 4
Purification system and purification method and embodiment 1 are consistent, and difference is only that, poly- phosphorus is no longer added in second segment anaerobic pond
Bacterium.
Embodiment 5
Purification system and purification method and embodiment 1 are consistent, and difference is only that, no longer adds attachment in third section anaerobic pond
The biological ceramic particle of denitrifying bacteria.
Embodiment 6
Purification system and purification method and embodiment 1 are consistent, and difference is only that, 200 bottom microporous aeration disc of conditioning tank stops
Only expose oxygen.
Embodiment 7
Purification system and purification method and embodiment 1 are consistent, and difference is only that, remove biologic float bed in conditioning tank 200.
Embodiment 8
Purification system and purification method and embodiment 1 are consistent, and difference is only that, plants rye grass in dense medium purifica tion slot 300
Rather than reed.
Embodiment 9
Purification system and purification method and embodiment 1 are consistent, and difference is only that, does not open up irrigation canals and ditches in dense medium purifica tion slot 300
And plantation rye grass.
Embodiment 10
Purification system and purification method and embodiment 1 are consistent, and difference is only that, 300 middle and lower part of dense medium purifica tion slot is not laid with
Pvc pipe net.
Experimental example
By measuring CODCr, total phosphorus, total nitrogen content, ammonia nitrogen in water before and after the processing, to pollutant control in Examples 1 to 10
The effect of method processed is evaluated, and the results are shown in Table 1.
Evaluation, from Rural Waste Water pipe network, initially uniformly measures COD in sanitary sewage with hydromining collectionCrContain for 297mg/L, total P
Amount is 4.14mg/L, and total N content is 52.4mg/L, ammonia nitrogen 37.6；Sanitary sewage is passed directly into anaerobic pond, the time is handled
For 12h, conditioning tank treatment time of water 6h, dense medium purifica tion slot treatment time of water 8h, sewage after collection processing measures effluent quality.
Table 1
Specific embodiment and/or exemplary example and attached drawing is combined to describe the invention in detail above, no
Cross that these descriptions are not to be construed as limitations on the present invention.It will be appreciated by those skilled in the art that without departing from spirit of that invention and
, can be with various equivalent substitutions, modifications or improvements are made to the technical scheme of the invention and its embodiments in the case where range, these
It is within the scope of the present invention.Scope of protection of the present invention is subject to the appended claims.
Claims (10)
1. a kind of domestic sewage in rural areas purification system, which is characterized in that the purification system includes sequentially connected anaerobic pond
(100), conditioning tank (200) and dense medium purifica tion slot (300),
The sanitary sewage collected is passed through anaerobic pond (100), and anaerobic pond (100) precipitates the particulate contaminant in sanitary sewage, and makees
Sanitary sewage is set to carry out initial breakdown for the place of anoxic and anaerobic reaction；
Conditioning tank (200) collects the sanitary sewage of anaerobic pond (100) outflow, adjusts the water for entering dense medium purifica tion slot (300)；
Packing medium is filled in dense medium purifica tion slot (300), sanitary sewage flows into filler, through the interaction with filler, completes
Purification system is discharged in purified treatment.
2. purification system according to claim 1, which is characterized in that the anaerobic pond (100) is three-stage anaerobic pond
(100), sanitary sewage high water level is introduced into first segment anaerobic pond by water inlet, first segment anaerobic pond, second segment anaerobic pond and
Overflow plate is erect between three sections of anaerobic ponds, the sewage in the last period anaerobic pond enters latter section of anaerobic pond by overflow；
Supersonic generator (110) are installed in the middle part of the pond body of third section anaerobic pond, and propagate the ultrasonic wave tilt issued upward.
3. purification system according to claim 1, which is characterized in that near the water outlet of first segment anaerobic pond setting every
Oiled-plate method (120), the plate face of oil separating plate (120) are fixed towards water inlet in 45 ° of directions, and it is dirty that life is immersed in oil separating plate (120) lower end
In water；
Oil exit pipe (130) are arranged at the front end of first segment anaerobic pond and height identical as water inlet, and oil separating plate (120) will give birth to
Greasy dirt in sewage living is placed in the front end of first segment anaerobic pond, and then can be discharged by oil exit pipe (130).
4. purification system according to claim 1, which is characterized in that protrude into oil exit pipe (130) and the water in sanitary sewage
The flat guide bar (140) being fixed in first segment anaerobic pond is affixed；
Unanimously, close to the end of pond body wall surface, connection can drive guide bar for the length direction of guide bar (140) and oil exit pipe (130)
(140) draw bar (150) moved up and down, draw bar (150) are located in traction sleeve (160), the connection of draw bar (150) top
Traction rope, traction rope draw anaerobic pond (100), fixed by being located at the capstan winch (170) of anaerobic pond (100) outside.
5. purification system according to claim 1, which is characterized in that add polyP bacteria in second segment anaerobic pond；
Biological ceramic particle and denitrifying bacteria are added in third section anaerobic pond.
6. purification system according to claim 1, which is characterized in that conditioning tank (200) bottom is equipped with microporous aeration disc
(210), dissolved oxygen is provided to enter the sewage of dense medium purifica tion slot (300).
7. purification system according to claim 1, which is characterized in that conditioning tank (200) surface passes through biologic float bed (220)
Covering, which includes the biological bed body that can be swum on water body and the plant being fixed in biological bed body；
The biology bed body is to be arranged by the pvc pipe of fixation with steel wire, the arrangement of Guan Paizhong pvc pipe transverse and longitudinal, and any two row or two column are reported to the leadship after accomplishing a task
It is inserted into pvc pipe in the gap of generation, as plant growing container.
8. purification system according to claim 7, which is characterized in that the plant planted in biologic float bed 220 be selected from reed,
One of cattail, calamus or wild rice are a variety of；
As the pvc pipe of plant growing container, for caliber between 5~40cm, depth in water is no more than 1m.
9. purification system according to claim 1, which is characterized in that dense medium purifica tion slot (300) is sheet building, by upper
It down include muskeg layer (310), regulating course (320) and supporting layer (330), wherein
Surface layer to its lower 130~150cm stage is muskeg layer (310), wherein being laid with soil, and planting aquatic plants；
Under muskeg layer (310) at 30~50cm be regulating course (320), solid particle medium is equipped with, to implement pollutant
Absorption；
Under regulating course (320) at 10~20cm be supporting layer (330), the filler on its upper layer is used to support, conducive to being discharged after processing.
10. a kind of purification method of domestic sewage in rural areas, this method preferably pass through net described in one of the claims 1 to 9
Change system is implemented.
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|---|---|---|---|---|
| CN110698005A (en) * | 2019-11-26 | 2020-01-17 | 南京大学 | Denitrification filter pool capable of reducing carbon source consumption and operation method thereof |
| CN111362527A (en) * | 2020-04-16 | 2020-07-03 | 南开大学 | Semi-fixed bed in-situ domestic sewage purification device and application |
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| CN207468411U (en) * | 2017-09-28 | 2018-06-08 | 中冶华天工程技术有限公司 | A kind of rural domestic sewage treatment system |
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| CN203904162U (en) * | 2014-06-25 | 2014-10-29 | 四川农业大学 | Decentralized rural domestic sewage treatment device |
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