CN104843954B - Sewage treatment device and treatment method thereof for large-scale sewage treatment station - Google Patents
Sewage treatment device and treatment method thereof for large-scale sewage treatment station Download PDFInfo
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- CN104843954B CN104843954B CN201510313409.3A CN201510313409A CN104843954B CN 104843954 B CN104843954 B CN 104843954B CN 201510313409 A CN201510313409 A CN 201510313409A CN 104843954 B CN104843954 B CN 104843954B
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Abstract
The invention discloses a sewage treatment device for a large-scale sewage treatment station. The sewage treatment device comprises a filtering device, a regulating hydrolysis tank, a grade-A biochemical tank, a grade-O biochemical tank, a precipitation tank, an improved coagulation system, a disinfection tank, a sludge thickening tank, oxygenation equipment and a gas stripping device, wherein the filtering device, the regulating hydrolysis tank, the grade-A biochemical tank, the grade-O biochemical tank, the precipitation tank, the improved coagulation system and the disinfection tank are connected with one another in sequence from front to back; the gas stripping device is a pulse gas stripping device which is used for stripping one part of sludge precipitated in the precipitation tank into the sludge thickening tank, and the other part of the sludge precipitated in the precipitation tank into the grade-A biochemical tank; the grade-O biochemical tank is provided with the oxygenation equipment which is a centrifugal blower. The invention also provides a sewage treatment method for the large-scale sewage treatment station. The sewage treatment device disclosed by the invention has the advantages of being full in filtration and high in treatment efficiency of precipitated sludge, saving the floor area, and having an integrated function of regulation and decomposition.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of down-stream treating stations sewage-treatment plant and
Its processing method.
Background technology
Sewage water treatment method under prior art mainly has following several：
1st, block dirty facility
In this engineering raw water, solid impurity content is higher, to guarantee the equipment such as elevator pump normal work and ensureing subsequent treatment
Structures normally run, and intend arranging in the leading portion for processing main process and block dirty facility.
2nd, carry out a biological disposal upon
Common Sewage Disposal typically adopts following several bioremediations.
A) biological contact oxidation process
Biological contact oxidation process belongs to biomembrance process, with advantages below and feature：
1) filler is set in biological contact oxidation process biological tank, and as the specific surface area of filler is big, in pond, aerobic condition is good,
In biological contact oxidation pond, the biomass of unit volume is all higher than activated sludge process Aeration tank and biofilter, therefore biology connects
Tactile oxidation pond has higher volumetric loading；
2) as quite a few microorganism set is grown in filler surface, biological contact oxidation process can not set sludge reflux
, there is no sludge bulking in system, operational management is convenient yet；
3) due in biological contact oxidation pond biosolids amount it is many, current belong to the type of being thoroughly mixed, therefore biological contact oxidation
Changing cataclysm of the pond to water quality and quantity has stronger adaptability；
4) due in biological contact oxidation pond biosolids amount it is many, when Organic substance volumetric loading is higher, (F is to have for its F/M
Machine substrate amount, M is microbial biomass) ratio may remain in certain level, therefore sludge yield can be equal to or below activated sludge
Method；
5) because loading filler, biological contact oxidation pond unit manufacturing cost is slightly higher, apply in general to it is middle-size and small-size (Qd≤
2500m3/d) Sewage Disposal.
B) conventional activated sludge method
Activated sludge process is a kind of most widely used waste water aerobic biologic treating technique in big-and-middle-sized sewage disposal.Activity
The effective primary condition run of sludge treating system and feature are：
1) should have enough solubility degradable materials in waste water, as microbial physiology activity necessary to nutrient, one
As activated sludge process must periodically add nutrient substance according to a certain ratio, which increase operating cost and management difficulty；
2) mixed liquor must contain enough dissolved oxygen, and activated sludge concentration basin length has aerobic protozoacide, the demand of oxygen
Amount is larger；
3) activated sludge is in suspended state in pond planted agent, fully can contact with water and mix；
4) activated sludge continuous backflow, excludes excess sludge in time, makes mixed liquor keep certain activated sludge concentration；
5) the Activated Sludge Growth cycle is long, poor to the cataclysm adaptability of temperature, water quality and the water yield；
6) within safe level should being strict controlled in the virulent material of microorganism；
7) Wastewater Treated by Activated Sludge Process meets relatively low, causes the volume of facility to increase, and construction investment also accordingly increases.
Just because of have the essential condition and feature of the above, so activated sludge process operational management is more professional.It is active in addition
Sludge is also easy to produce sludge bulking, and process load is relatively low, wayward management, therefore in recent years in middle-size and small-size Sewage Disposal
Using fewer and feweri.
C) SBR methods
SBR methods are a kind of relatively advanced activated sludge processes that developed recently gets up, the handling process collection Aeration tank,
Sedimentation tank is integrated, continuum micromeehanics, intermittent aerating, settlement of sewage when stopping the supple of gas or steam, and excludes supernatant, becomes a cycle, Zhou Erfu
Begin.SBR methods do not set sedimentation tank, run for gap without sludge reflux equipment, but SBR methods, need to set multiple processing units, water inlet and exposure
Gas phase mutually switches, and causes control complex.In order to ensure weir loading, SBR methods are had high demands to water decanter device fabrication, during making
Must keep on improving, otherwise easily cause final outflow water water quality not up to standard.The country there is presently no quality and preferably strain wetting system,
Import equipment buying trouble, and it is expensive, while maintenance cost is also high from now on.In SBR methods pond, sludge concentration is surveyed by concentration meter
Fixed to control to discharge unnecessary sludge quantity, country's concentration meter quality does not pass a test at present, causes mud discharging control more difficult.
SBR ponds weir loading low (being usually no more than 40%), facility volume are larger, cause construction investment higher.Due to existing
Superelevation must be higher technical matters, activated sludge concentration basin and SBR ponds typically can only outdoor layout, such local influence ring
Border aesthetic feeling (during buried setting, construction investment will be greatly increased).The each cell body of contact oxidation technology can adopt buried setting, on equipment
Road or greenbelt can be set, and general layout is elegant in appearance.But traditional biological contact oxidation process has the following disadvantages：
1) due to there is substantial amounts of non-dissolved organic matter in sanitary sewage and being difficult to biodegradation macromolecular substances,
Before carrying out biochemical treatment, needs are hydrolyzed and are acidified biological treatment.Turn the non-dissolved organic matter retention in sewage and progressively
Be changed into dissolved organic matter, some be difficult to biodegradation macromolecular substances be converted into be easy to degrade small-molecule substance it is for example organic
Acid.Therefore, large-scale Sewage Disposal is both provided with special hydrolytic tank.The setting of hydrolytic tank, on the one hand occupies treating stations
Big quantity space；On the other hand consume man power and material.
2) solid refuse Jing after grid pond filtration is easy to bring into transporter, blocks transporter, causes to pass
Send device cisco unity malfunction；Meanwhile, can also affect filter efficiency；
3) pool wall of vertical sedimentation basin is constructed by armored concrete, and surface is in roughness, and traditional discharge pipeline
Space between the lower end in road and pool wall is bigger, floats on liquid level, cause two after causing the sludge disintegration being deposited on pool wall
Secondary pollution；
4) burn after sludge after precipitation is dehydrated often through quick lime, there is processing cost greatly and pollute environment
Weak point.
The content of the invention
For the deficiencies in the prior art, a kind of filtration of present invention offer is abundant, precipitating sludge treatment effeciency is high, saving is taken up an area
Area, good purification, the sewage-treatment plant with the down-stream treating stations for adjusting hydrolysis integrated function and its process
Method.
The present invention is employed the following technical solutions and solves above-mentioned technical problem：A kind of sewage disposal of down-stream treating stations
Device, including defecator, adjust hydrolytic tank, A level biochemistry pools, O level biochemistry pools, sedimentation tank, sterilization pool, sludge concentration tank, fill
Oxygen equipment and air-lift device.The defecator, the regulation hydrolytic tank, the A levels biochemistry pool, the O levels biochemistry pool, institute
State sedimentation tank and the sterilization pool is sequentially connected from front to back.Sanitary sewage is tentatively filtered by the defecator, institute
Stating defecator includes grid pond, grid, transporter, handgrip, band and garbage cleaning device.The grid is fixed on
In the grid pond, the initiating terminal of the transporter is arranged on the water outlet of the grid pond, the end of the transporter
End is connected with the garbage cleaning device.The handgrip is successively set on the biography parallel to the direction of transfer of the transporter
Send on device.The band is covered on the gap between the transporter and the grid pond pool wall.The regulation water
Xie Chizhong is hung with biomembrane, and the biomembrane includes filter material layer, anaerobic layer, aerobic layer and hydrophilic layer from the inside to the outside successively.
The air-lift device be pulse air lifting device, the pulse air lifting device by a part of sludge precipitated in the sedimentation tank carry to
In the sludge concentration tank, and another part sludge precipitated in the sedimentation tank is carried into the A levels biochemistry pool.The O
Level biochemistry pool is configured with the oxygen replenishing equipment, and the oxygen replenishing equipment is cfentrifugal blower.The sedimentation tank goes out spoke for Zhou Jinzhou
One kind of flow settling pond or vertical sedimentation basin, the sedimentation tank include cell body, be provided with the cell body discharge pipeline and
Central canal, the vertical end of the discharge pipeline are connected with the central canal, and the horizontal ends of the discharge pipeline press close to the cell body inwall
Bottom；Several mudholes are offered in the horizontal ends of the discharge pipeline, the bottom of the discharge pipeline horizontal ends is provided with dirt
Mud baffle plate, the bottom of the sludge baffle plate water arrange elasticity layer；Several first through hole are provided with the elastic layer, it is described
Several the second through holes are offered on sludge baffle plate, the mudhole, the first through hole on same axis and described
Two through holes are connected；Gap between the bottom of the elastic layer and the cell body inwall is (1-5) cm.
Preferably, the setting angle of the grid is (50-80) °, and in the grid, grizzly bar gap is (5-20) mm, described
The width of grizzly bar is (400-1500) mm.
Preferably, the use parameter of the cfentrifugal blower is：Air quantity is more than 70 cubes ms/min, blast is 58.8K
It is more than handkerchief, power be 110 kilowatts.
Preferably, suction pump and acoustooptic alarm system are provided with the regulation hydrolytic tank.Match somebody with somebody on every suction pump
Ball float is equipped with, the switch of the ball float is made up of hermetic glass structure hydrargyrum, carrier is made by foam plasticss in outside.
Preferably, the sewage-treatment plant also includes electric control gear, and the working condition of the suction pump passes through the electricity
Control device control, the electric control gear are automatically controlled using S7 series of PLC.
Preferably, the grid pond, the regulation hydrolytic tank, the A levels biochemistry pool, the O levels biochemistry pool, the precipitation
Pond, the sterilization pool, the sludge concentration tank are armored concrete and construct, and the oxygen replenishing equipment is all provided with the electric control gear
Put in particular requirement structures, and ventilation, constant temperature, sound insulation system are provided with room.
Preferably, the handgrip includes connecting rod, drag head, closure, the first rivet and the second rivet, and the connecting rod is fixed
On the transporter, the closure, the drag head are adopted with the connecting rod and are detachably connected.The band is rubber
Adhesive tape, the rubber strip are fixed in the outer rim of the transporter by first rivet, the rubber strip
Another side is fixed on the pool wall of the grid pond by second rivet.
Preferably, the sewage-treatment plant also includes modified model coagulation system, and the modified model coagulation system is dosing
Point position moves forward to the O levels biochemistry pool outlet from the import of the sterilization pool.The composition of the filter material layer is cellulose, shell gathers
One kind in sugar or sodium alginate, the porosity of the filter material layer is 10%-80%, and specific surface area is (10.5-13.3) m2/ g,
Aperture is 50 μm -400 μm.
The present invention also provides a kind of a kind of sewage water treatment method of such as down-stream treating stations of above-mentioned any one, including such as
Lower step：
1) sanitary sewage is after defecator filtration, into adjusting hydrolytic tank, and the solid refuse for filtering out by transmitting
Device is sent in garbage cleaning device；
2) entering the sewage adjusted in hydrolytic tank carries out water quality, the regulation of the water yield and by non-dissolved organic matter in sewage
Retention and be progressively changed into dissolved organic matter, be difficult to biodegradation macromolecular substances be converted into be easy to degraded small molecule
Material；
3) sewage after hydrolytic tank is processed will be adjusted to be promoted in A level biochemistry pools by the effect of suction pump, is carried out organic
Thing process；
4) sewage after the process of A levels biochemistry pool is flowed in O level biochemistry pools, carries out nitration treatment；
5) a part of sewage Jing after O level biochemistry pool nitration treatment is flowed into and is precipitated in sedimentation tank, another part is dirty
Water is back to A levels biochemistry pool and carries out denitrification process；
6) sewage into sedimentation tank is carried out into solid-liquid separation, the sludge part being precipitated out is carried to sludge concentration tank
In, another part is carried to A levels biochemistry pool and carries out sludge reflux, and water after precipitation is flowed in sterilization pool；
7) carrying to the sludge of sludge concentration tank is carried out after dehydration concentration, and outward transport is disposed, and flows into the water Jing in sterilization pool
After disinfection by chlorine dioxide, directly discharge.
It is an advantage of the current invention that：Band is covered by gap between transporter and grid pond pool wall, one
Aspect prevents waste from bringing into transporter；On the other hand the sealing of transporter and pool wall is improved, is effectively improved solid
The detached efficiency of body rubbish.Sludge scraper plate and elastic layer are disposed with by the bottom in the dredging tube road of sedimentation tank,
Reduce sludge disintegration to float, improve the response rate of sludge.Meanwhile, sludge scraper plate plate plays potentiation, and elastic layer can be according to pond
The concavo-convex degree of wall and deform upon, reach the effect of flexible contact and sealing.By biomembrane is hanged in hydrolytic tank is adjusted,
Sewage is not only carried out the regulation of water quality, the water yield, moreover it is possible to which non-dissolved organic matter in sewage is retained and is progressively changed into dissolving
State Organic substance, it is difficult to biodegradation macromolecular substances and is converted into the small-molecule substance for being easy to degrade, is easy to rear road to process.It is logical
Cross to carry partial sludge in sedimentation tank and dehydration concentration is done into sludge concentration tank, and operate outward agricultural fertilizer, reduce pollution, carry out
Secondary use.Further, using degradable filtrate, and ensure that filtrate has certain aperture and porosity so that biological
Film is not easily blocked, and contact surface is big, easy to be filmed, long service life, adds conveniently.The introducing of modified model coagulation system, one is significantly
Sedimentation tank outlet effect is improved, two is to significantly reduce fiber rotary disc filter backwashing period, hence for stable water outlet
Assurance up to standard is bigger.
Description of the drawings
Flow charts of the Fig. 1 for the embodiment of the present invention.
Fig. 2 is the topology example figure of grid device in the embodiment of the present invention.
Fig. 3 is the topology example figure of sedimentation tank in the embodiment of the present invention.
Fig. 4 is biomembranous topology example figure in the embodiment of the present invention.
Specific embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As Figure 1-4, a kind of sewage-treatment plant of down-stream treating stations of the present embodiment, including defecator 1, tune
Section hydrolytic tank 2, A levels biochemistry pool 3, O levels biochemistry pool 4, sedimentation tank 5, sterilization pool 6, sludge concentration tank 7, oxygen replenishing equipment and air stripping
Device 8.The defecator 1, the regulation hydrolytic tank 2, the A levels biochemistry pool 3, the O levels biochemistry pool 4, sedimentation tank 5
And the sterilization pool 6 is sequentially connected from front to back.Sanitary sewage is tentatively filtered by the defecator 1, the filtration
Device 1 includes grid pond 11, grid 12, transporter 13, handgrip 14, band 15 and garbage cleaning device 16.The lattice
Grid 12 are fixed in the grid pond 11, and the initiating terminal of the transporter 13 is arranged on the water outlet of the grid pond 11,
The end of the transporter 13 is connected with the garbage cleaning device 16.The handgrip 14 is parallel to the transporter 13
Direction of transfer is successively set on the transporter 13.The band 15 by rivet be covered in the transporter 13 with
On gap between 12 pool wall of the grid pond.Biomembrane is hung with the regulation hydrolytic tank 2, the biomembrane is from the inside to the outside
Include filter material layer 21, anaerobic layer 22, aerobic layer 23 and hydrophilic layer 24 successively.The air-lift device 8 is pulse air lifting device, will
The a part of sludge precipitated in the sedimentation tank 5 is carried into the sludge concentration tank 7, and precipitate in the sedimentation tank 5 it is another
Partial sludge is carried into the A levels biochemistry pool 3.The O levels biochemistry pool 4 is formulated with the oxygen replenishing equipment, and the oxygen replenishing equipment is
Cfentrifugal blower.
The grid 12 is (50-80) ° with the angle of the grid pond 11, and in the grid, grizzly bar gap is (5-20)
Mm, the width of the grizzly bar is (400-1500) mm.
The use parameter of the cfentrifugal blower is：Air quantity is more than 70 cubes ms/min, blast for it is more than 58.8K handkerchiefs,
Power is 110 kilowatts.
Suction pump 21 and acoustooptic alarm system are provided with the regulation hydrolytic tank 2, are each equipped with every suction pump
Ball float, the switch of the ball float are made up of hermetic glass structure hydrargyrum, and carrier is made by foam plasticss in outside.
The sewage-treatment plant also includes electric control gear 9, controls the work of the suction pump 21 by the electric control gear 9
Make state, the electric control gear is automatically controlled using S7 series of PLC.
The grid pond 12, the regulation hydrolytic tank 2, the A levels biochemistry pool 3, the O levels biochemistry pool 4, sedimentation tank
5th, the sterilization pool 6, the sludge concentration tank 7 are armored concrete and construct, and the oxygen replenishing equipment is equal with the electric control gear 9
It is arranged in the house made of color steel, and ventilation, sound insulation system is set in room.
The handgrip 14 includes connecting rod 141, drag head 142 and closure 143, and the connecting rod 141 is fixed on the transmission
On device 13, the closure 143, the drag head 142 are adopted with the connecting rod 141 and are detachably connected.The band 15
For rubber strip, the side of the rubber strip is fixed in the outer rim of the transporter by the first rivet 171, the rubber strip
Opposite side be fixed on the pool wall of the grid pond by the second rivet 172.
The sedimentation tank 5 is vertical sedimentation basin, or Zhou Jinzhou goes out radical sedimentation basin, the vertical-flow precipitation
Discharge pipeline 52 and central canal 51 are provided with pond, the vertical end of the discharge pipeline 52 is connected with the central canal 51, the row
The horizontal ends of mud pipe 52 press close to the bottom of the vertical sedimentation basin inwall.Offer in the horizontal ends of the discharge pipeline 52 some
Individual mudhole 55, the bottom of the horizontal ends of the discharge pipeline 52 are provided with sludge baffle plate 53.The bottom of the sludge baffle plate 53 sets
Elastic layer 54 is equipped with, the elastic layer 54 is rubber blanket, between the bottom of the rubber blanket and the vertical sedimentation basin inwall
Gap be (1-5) cm, several first through hole 57 are provided with the elastic layer 54, if offering on the sludge baffle plate 53
Dry the second through hole 56, the mudhole 55, the first through hole 57 and second through hole 56 on same axis are connected
It is logical.
The sewage-treatment plant also includes modified model coagulation system, and the modified model coagulation system is chemical feeding points position from institute
The import for stating sterilization pool 6 moves forward to 4 outlet of O levels biochemistry pool.
The composition of the filter material layer 21 is the one kind in cellulose, shitosan or sodium alginate, the hole of the filter material layer 21
Gap rate is 60%-80%, and specific surface area is (10.5-13.3) m2/ g, aperture are 50 μm -400 μm.
A kind of sewage water treatment method of down-stream treating stations of the present embodiment, it is characterised in that comprise the steps：
1) sanitary sewage through defecator 1 filtration after, into adjust hydrolytic tank 2；The solid refuse for filtering out is by transmitting
Device 13 is sent in garbage cleaning device 16；
2) entering the sewage adjusted in hydrolytic tank 2 carries out water quality, the regulation of the water yield and will be non-the dissolved in sewage organic
Thing retention and be progressively changed into dissolved organic matter, be difficult to biodegradation macromolecular substances be converted into be easy to degraded little point
Sub- material；
3) sewage after hydrolytic tank 2 is processed will be adjusted to be promoted in A levels biochemistry pool 3 by the effect of suction pump 21, is carried out
Organic substance process；
4) sewage after process A levels biochemistry pool 3 is flowed in O levels biochemistry pool 4, carries out nitration treatment；
5) the sewage part Jing after 4 nitration treatment of O levels biochemistry pool is flowed into into row precipitation in sedimentation tank 5, another part is returned
Flowing to A levels biochemistry pool 3 carries out denitrification process；
6) sewage into sedimentation tank 5 is carried out into solid-liquid separation, the sludge part being precipitated out is carried to sludge concentration tank 7
In, another part is carried to A levels biochemistry pool 4 and carries out sludge reflux；And water after precipitation is flowed in sterilization pool 6；
7) carry to the sludge of sludge concentration tank 7 entering after concentration, processed by agricultural fertilizer is operated outside dung-cart；Flow in sterilization pool 6
Water Jing after disinfection by chlorine dioxide, directly discharge.
The preferred embodiment of the invention is the foregoing is only, it is not to limit the invention, all at this
Any modification, equivalent and improvement made within the spirit and principle of innovation and creation etc., should be included in the invention
Protection domain within.
Claims (9)
1. a kind of sewage-treatment plant of down-stream treating stations, including defecator, regulation hydrolytic tank, A level biochemistry pools, O levels
Biochemistry pool, sedimentation tank, sterilization pool, sludge concentration tank, oxygen replenishing equipment and air-lift device；The defecator, the regulation water
Xie Chi, the A levels biochemistry pool, the O levels biochemistry pool, the sedimentation tank and the sterilization pool are sequentially connected from front to back；
Characterized in that, sanitary sewage is tentatively filtered by the defecator, the defecator includes grid pond, lattice
Grid, transporter, handgrip, band and garbage cleaning device；The grid is fixed in the grid pond, the transmission dress
The initiating terminal put is arranged on the water outlet of the grid pond, the end of the transporter and the garbage cleaning device phase
Even；The handgrip is successively set on the transporter parallel to the direction of transfer of the transporter；The band covers
On the gap covered between the transporter and the grid pond pool wall；
It is hung with biomembrane in the regulation hydrolytic tank, the biomembrane includes filter material layer, anaerobic layer, aerobic from the inside to the outside successively
Layer and hydrophilic layer；
The air-lift device is pulse air lifting device, and the pulse air lifting device is by a part of sludge precipitated in the sedimentation tank
Carry into the sludge concentration tank, and another part sludge precipitated in the sedimentation tank is carried into the A levels biochemistry pool；Institute
State O level biochemistry pools and be configured with the oxygen replenishing equipment, the oxygen replenishing equipment is cfentrifugal blower；
The sedimentation tank goes out one kind of radical sedimentation basin or vertical sedimentation basin for Zhou Jinzhou, and the sedimentation tank includes cell body,
Discharge pipeline and central canal are provided with the cell body, the vertical end of the discharge pipeline is connected with the central canal, the spoil disposal
The horizontal ends of pipe press close to the bottom of the cell body inwall；Several mudholes are offered in the horizontal ends of the discharge pipeline, it is described
The bottom of discharge pipeline horizontal ends is provided with sludge baffle plate, and the bottom of the sludge baffle plate water arranges elasticity layer；The elastic layer
On be provided with several first through hole, several second through holes are offered on the sludge baffle plate, the row on same axis
Mud hole, the first through hole and second through hole are connected；Between the bottom of the elastic layer and the cell body inwall
Gap is (1-5) cm.
2. a kind of sewage-treatment plant of down-stream treating stations according to claim 1, it is characterised in that the grid
Setting angle be (50-80) °, in the grid, grizzly bar gap is (5-20) mm, and the width of the grizzly bar is (400-1500)
mm。
3. a kind of sewage-treatment plant of down-stream treating stations according to claim 1, it is characterised in that the centrifugation
The use parameter of formula aerator is：Air quantity be more than 70 cubes ms/min, blast be 58.8K handkerchiefs more than, power be 110 kilowatts.
4. a kind of sewage-treatment plant of down-stream treating stations according to claim 1, it is characterised in that the regulation
Suction pump and acoustooptic alarm system are provided with hydrolytic tank；Ball float, the switch of the ball float are each equipped with every suction pump
It is made up of hermetic glass structure hydrargyrum, carrier is made by foam plasticss in outside.
5. a kind of sewage-treatment plant of down-stream treating stations according to claim 4, it is characterised in that the sewage
Processing meanss also include electric control gear, and the working condition of the suction pump is controlled by the electric control gear；The electric control gear
Automatically controlled using S7 series of PLC.
6. a kind of sewage-treatment plant of down-stream treating stations according to claim 5, it is characterised in that the grid
Pond, the regulation hydrolytic tank, the A levels biochemistry pool, the O levels biochemistry pool, the sedimentation tank, the sterilization pool, the sludge
Concentration basin is armored concrete and constructs, and the oxygen replenishing equipment is arranged in particular requirement structures with the electric control gear,
And ventilation, constant temperature, sound insulation system are provided with room.
7. a kind of sewage-treatment plant of down-stream treating stations according to claim 1, it is characterised in that the handgrip
Including connecting rod, drag head, closure, the first rivet and the second rivet, the connecting rod is fixed on the transporter, described close
Capping, the drag head are adopted with the connecting rod and are detachably connected；The band is rubber strip, the rubber strip it is logical
Cross first rivet to be fixed in the outer rim of the transporter, the another side of the rubber strip is solid by second rivet
It is scheduled on the pool wall of the grid pond.
8. a kind of sewage-treatment plant of down-stream treating stations according to claim 1, it is characterised in that the sewage
Processing meanss also include modified model coagulation system, and the modified model coagulation system is chemical feeding points position from before the import of the sterilization pool
Move to the outlet of the O levels biochemistry pool；The composition of the filter material layer is the one kind in cellulose, shitosan or sodium alginate,
The porosity of the filter material layer is 10%-80%, and specific surface area is (10.5-13.3) m2/ g, aperture are 50 μm -400 μm.
9. a kind of a kind of sewage water treatment method of the down-stream treating stations according to any of the above-described, it is characterised in that bag
Include following steps：
1), after defecator filtration, into regulation hydrolytic tank, and the solid refuse for filtering out is by transporter for sanitary sewage
It is sent in garbage cleaning device；
2) entering the sewage adjusted in hydrolytic tank carries out water quality, the regulation of the water yield and retains non-dissolved organic matter in sewage
And be progressively changed into dissolved organic matter, be difficult to biodegradation macromolecular substances be converted into be easy to degrade small molecule thing
Matter；
3) sewage after hydrolytic tank is processed will be adjusted to be promoted in A level biochemistry pools by the effect of suction pump, is carried out at Organic substance
Reason；
4) sewage after the process of A levels biochemistry pool is flowed in O level biochemistry pools, carries out nitration treatment；
5) a part of sewage Jing after O level biochemistry pool nitration treatment is flowed into and is precipitated in sedimentation tank, another part sewage is returned
Flowing to A levels biochemistry pool carries out denitrification process；
6) sewage into sedimentation tank is carried out into solid-liquid separation, the sludge part being precipitated out is carried into sludge concentration tank, separately
A part is carried to A levels biochemistry pool and carries out sludge reflux, and water after precipitation is flowed in sterilization pool；
7) carrying to the sludge of sludge concentration tank is carried out after dehydration concentration, and outward transport is disposed, and flows into the water Jing dioxies in sterilization pool
After changing chlorination, directly discharge.
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| CN110407398A (en) * | 2018-04-28 | 2019-11-05 | 吴炎峰 | A kind of packaged type garbage leachate treatment device |
| CN108862822A (en) * | 2018-06-12 | 2018-11-23 | 珠海市圣洋衔实业有限公司 | A kind of plant effuent processing method |
| CN111056722B (en) * | 2018-10-17 | 2024-03-19 | 中电建生态环境集团有限公司 | Sludge treatment equipment |
| CN110127936B (en) * | 2019-04-30 | 2020-11-06 | 贵州民族大学 | Integrated treatment facility of domestic waste |
| CN110143717A (en) * | 2019-04-30 | 2019-08-20 | 贵州民族大学 | A kind of integrated processing system of house refuse |
| CN112973207B (en) * | 2021-02-23 | 2022-07-12 | 山东凯利生物科技有限公司 | Scraper is received to sedimentation tank industry chemistry floater |
| CN113307454A (en) * | 2021-06-17 | 2021-08-27 | 唐山市蓝翔环保设备有限公司 | Novel process for domestic sewage treatment |
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| CN201232043Y (en) * | 2008-04-17 | 2009-05-06 | 北京碧水泉科技开发中心 | Full-automatic, high efficiency and energy-saving sewage water reuse and recycle apparatus |
| CN204056237U (en) * | 2014-07-24 | 2014-12-31 | 叶增茂 | Cleaning boat for water surface |
| CN204752476U (en) * | 2015-06-09 | 2015-11-11 | 安徽利和水务有限公司 | Sewage treatment device at large -scale sewage treatment station |
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