CN108947137A - A kind of kitchen garbage percolation liquid treatment method - Google Patents

A kind of kitchen garbage percolation liquid treatment method Download PDF

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Publication number
CN108947137A
CN108947137A CN201810880237.1A CN201810880237A CN108947137A CN 108947137 A CN108947137 A CN 108947137A CN 201810880237 A CN201810880237 A CN 201810880237A CN 108947137 A CN108947137 A CN 108947137A
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China
Prior art keywords
water outlet
enters
oil
kitchen garbage
anaerobic reactor
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CN201810880237.1A
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Chinese (zh)
Inventor
张宏宇
梁勇
张志远
吴双
赵晓东
马刚平
贾延明
高祥
陈领
陈领一
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SHOUGANG ENVIRONMENTAL INDUSTRY Co Ltd
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SHOUGANG ENVIRONMENTAL INDUSTRY Co Ltd
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Priority to CN201810880237.1A priority Critical patent/CN108947137A/en
Publication of CN108947137A publication Critical patent/CN108947137A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06Contaminated groundwater or leachate
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/308Biological phosphorus removal

Abstract

The invention discloses a kind of kitchen garbage percolation liquid treatment methods, which comprises kitchen garbage Leachate site, which enters after grid maker, is passed through oil separator by the water outlet of the grid maker;Oil separator water outlet is entered three phase separator to separate;Water outlet after separation is entered into intermediate pool;The water outlet of the intermediate pool enters air-floating apparatus, and water outlet enters anaerobic reactor, and the water outlet of the anaerobic reactor enters denitrogenation dephosphorisation reaction pond, and water outlet enters sedimentation basin;The water outlet of the sedimentation basin enters moving bed biofilm reactor, and water outlet enters sludge filtration system;The water outlet of the film advanced treatment system carries out disinfection into sterilization pool.Through the invention, it is long to solve hydraulic detention time in kitchen garbage filtration process, equipment and tank volume are big, processing cost is high, and grease, suspended matter processing are difficult, the low problem of resource recovery, reach treatment effeciency height, equipment investment is saved, processing cost and energy consumption, the technical effect of efficient resource recycling are reduced.

Description

A kind of kitchen garbage percolation liquid treatment method
Technical field
The present invention relates to technical field of sewage more particularly to a kind of kitchen garbage percolation liquid treatment methods.
Background technique
Kitchen garbage is the important component of municipal solid wastes, is occupied in the domestic waste in China larger Specific gravity, and with the development of society, the yield of kitchen garbage also increases year by year.Kitchen garbage has moisture content height, oil content Height, is easy the features such as corruption at high organic content, such as deals with improperly, necessarily causes the waste of resource and the pollution of environment.Cause How this carries out minimizing to kitchen garbage, innoxious, recycling treatment has become question of common concern.
But present inventor during technical solution, has found the above-mentioned prior art extremely in realizing the embodiment of the present application It has the following technical problems less:
1, there are a large amount of grease and suspended matters in kitchen garbage Leachate site, if will be serious without effectively pre-processing Influence the normal operation of membranous system.
2, kitchen garbage solid phase is commonly used in the cultivation of the insects such as black horsefly, is efficiently used.But have in Leachate site The content of material such as machine object, grease are higher, to itself and unrealized effective utilization in current leachate treatment technology.
3, kitchen garbage Leachate site high organic content, ammonia-nitrogen content is high after anaerobism, it is subsequent using biologic treating technique into Hydraulic detention time is very long when row denitrogenation, removal organic matter, and equipment and tank volume are big, and energy consumption is high.
Summary of the invention
The embodiment of the invention provides a kind of kitchen garbage percolation liquid treatment methods, through the invention, solve kitchen rubbish Hydraulic detention time is long in rubbish filtration process, and equipment and tank volume are big, and processing cost is high, and grease, suspended matter processing are difficult, money The rate of recovery low problem in source reaches treatment effeciency height, saves equipment investment, reduces processing cost and energy consumption, efficient resource recycling Technical effect.
To solve the above-mentioned problems, the embodiment of the invention provides a kind of kitchen garbage percolation liquid treatment method, the sides Method includes: that kitchen garbage Leachate site enters after grid maker and is passed through oil separator by the water outlet of the grid maker;By the oil separator Water outlet enters three phase separator and carries out oil, water, solid three phase separation;Three phase separator water outlet is entered into intermediate pool;It is described The water outlet of intermediate pool enters air-floating apparatus;The water outlet of the air-floating apparatus enters anaerobic reactor, the anaerobic reactor Water outlet enters denitrogenation dephosphorisation reaction pond;The water outlet in denitrogenation dephosphorisation reaction pond enters sedimentation basin;The water outlet of the sedimentation basin into Enter moving bed biofilm reactor;The water outlet of the moving bed biofilm reactor enters sludge filtration system;The sludge mistake The water outlet of filter system enters film advanced treatment system;The water outlet of the film advanced treatment system carries out disinfection into sterilization pool.
Preferably, the method also includes: after the water outlet by the grid maker is passed through oil separator, in Leachate site Upper layer grease is pushed in oil collecting pipe by the Oil scraper that the oil separator face is arranged in and flows into oil storage tank;It sinks in the oil separator The heavy oil to form sediment accumulates in bottom of pond bucket, and the heavy oil and other impurities enter oil storage tank after being filtered.
Preferably, described that grease is consolidated into three phase separation, further includes: the oil mutually enters oil storage tank.
Preferably, the method also includes: thrown in the conveyance conduit between the intermediate pool and the air-floating apparatus Add demulsifier, turbulence device is arranged in the air-floating apparatus water inlet
Preferably, the method also includes: the water outlet of the air-floating apparatus enters anaerobic reactor further include: in the gas PH adjusting is carried out in the connecting pipe of floating device and the anaerobic reactor is maintained at the pH value within the scope of 5-8, the gas The water outlet of floating device stops 5-15 days in the anaerobic reactor.
Preferably, be magnesium chloride the method also includes: the medicament: ammonia nitrogen molar ratio within the scope of 1:1~1.5:1, Phosphoric acid: for ammonia nitrogen molar ratio within the scope of 1:2~2:1, it includes in the kitchen garbage Leachate site that wherein phosphoric acid, which calculates dosage, Phosphate.
Preferably, the method also includes: purified again using the oil stored in the oil storage tank as crude oil or directly Connect recycling.
Preferably, the method also includes: by the biogas generated in the anaerobic reactor is purified or direct recycling.
Preferably, the method also includes: using the guanite generated in the sedimentation basin as fertilizer or pass through other way Diameter recycles.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects Fruit:
1, the embodiment of the present invention is by providing a kind of kitchen garbage percolation liquid treatment method, which comprises kitchen Garbage leachate, which enters after grid maker, is passed through oil separator by the water outlet of the grid maker;Oil separator water outlet is entered into three-phase Separator carries out oil, water, solid three phase separation;Three phase separator water outlet is entered into intermediate pool;The intermediate pool goes out Water enters air-floating apparatus;The water outlet of the air-floating apparatus enters anaerobic reactor, and the water outlet of the anaerobic reactor enters denitrogenation Dephosphorisation reaction pond;The water outlet in denitrogenation dephosphorisation reaction pond enters sedimentation basin;The water outlet of the sedimentation basin enters moving bed biological Membrane reactor;The water outlet of the moving bed biofilm reactor enters sludge filtration system;The water outlet of the sludge filtration system Into film advanced treatment system;The water outlet of the film advanced treatment system carries out disinfection into sterilization pool.Through the invention, it solves Hydraulic detention time is long in kitchen garbage filtration process, and equipment and tank volume are big, and processing cost is high, at grease, suspended matter Reason is difficult, the low problem of resource recovery, reaches treatment effeciency height, saves equipment investment, reduces processing cost and energy consumption, effectively The technical effect of resource reclaim.
2, by grid maker, three phase separator and air-floating apparatus, three-level removal is carried out to suspended matter in Leachate site, is reduced Into biological treatment system and film advanced treatment system suspension content, guarantee that water quality reaches into water requirement.
3, by oil separator, three phase separator and air-floating apparatus, three-level removal is carried out to grease in Leachate site, is lowered into Biological treatment system and film advanced treatment system fat content guarantee that water quality reaches into water requirement.
4, organic matter is most of in Leachate site removes in anaerobic reaction, and remainder is gone by moving bed biofilm reactor It removes, ammonia nitrogen is by being chemically removed, compared with through the denitrogenation of nitration denitrification bioanalysis, hence it is evident that improve removal efficiency, greatly Hydraulic detention time is reduced greatly, reaction pool volume is reduced, reduces system energy consumption.
5, most of organic matter is converted into biogas in anaerobic reactor in Leachate site, and biogas can be further as the energy Resource utilization, therefore the present invention has carried out effective resource recycling to organic matter in kitchen garbage Leachate site.
6, protein is converted into ammonia nitrogen in anaerobic reactor in Leachate site, after being precipitated by adding chemical agent To guanite, guanite can be used as fertilizer and carry out resource utilization, thus the present invention to ammonia nitrogen in kitchen garbage Leachate site into Effective resource recycling is gone.
7, grease is separated by oil separator, three phase separator into oil storage tank in Leachate site, and grease is made in oil storage tank Can be with purified rear progress resource utilization for crude oil rouge, therefore the present invention has carried out effectively grease in kitchen garbage Leachate site Resource recycling.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram of kitchen garbage percolation liquid treatment method in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of kitchen garbage percolation liquid treatment methods, solve in kitchen garbage filtration process Hydraulic detention time is long, and equipment and tank volume are big, and processing cost is high, and grease, suspended matter processing are difficult, and resource recovery is low Problem reaches treatment effeciency height, saves equipment investment, reduces processing cost and energy consumption, the technical effect of efficient resource recycling.
Technical solution in the embodiment of the present invention, overall plan are as follows: a kind of kitchen garbage percolation liquid treatment method, described Method includes: that kitchen garbage Leachate site enters after grid maker and is passed through oil separator by the water outlet of the grid maker;By the oil removal Pond water outlet enters three phase separator and carries out oil, water, solid three phase separation;Three phase separator water outlet is entered into intermediate pool;Institute The water outlet for stating intermediate pool enters air-floating apparatus;The water outlet of the air-floating apparatus enters anaerobic reactor, the anaerobic reactor Water outlet enter denitrogenation dephosphorisation reaction pond;The water outlet in denitrogenation dephosphorisation reaction pond enters sedimentation basin;The water outlet of the sedimentation basin Into moving bed biofilm reactor;The water outlet of the moving bed biofilm reactor enters sludge filtration system;The sludge The water outlet of filtration system enters film advanced treatment system;The water outlet of the film advanced treatment system carries out disinfection into sterilization pool. Through the invention, solve in kitchen garbage filtration process that hydraulic detention time is long, equipment and tank volume are big, processing cost Height, grease, suspended matter processing are difficult, the low problem of resource recovery, reach treatment effeciency height, save equipment investment, at reduction Reason expense and energy consumption, the technical effect of efficient resource recycling.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
The present embodiment with CODcr is 12500mg/L, total nitrogen 3400mg/L, total phosphorus 124mg/L, pH=7.6, oil-containing For the incineration plant garbage leachate raw water for measuring 8200mg/L, the present invention will be further described.
As shown in Figure 1, the embodiment of the invention provides a kind of kitchen garbage percolation liquid treatment methods, which comprises
Step 110: kitchen garbage Leachate site enter after rotary drum grid machine by the water outlet of the rotary drum grid machine be passed through every Oil sump;Further, upper layer grease is pushed in oil collecting pipe by the Oil scraper that the oil separator face is arranged in and flows into oil storage tank, The heavy oil to precipitate in the oil separator accumulates in bottom of pond bucket, after the heavy oil and other impurities are filtered Into oil storage tank.
Specifically, kitchen garbage Leachate site enters big partial size solid phase sundries in rotary drum grid machine removal sewage, then by rotary drum The water outlet of grid maker is passed through oil separator, and upper layer grease is pushed to inflow greasy filth pond in oil collecting pipe by the Oil scraper that pond face is arranged in, The heavy oil and other impurities to precipitate in oil separator, accumulates in bottom of pond bucket, and oil storage tank is entered after being filtered In, water outlet oil content is 1477mg/L.
Step 120: the oil separator water outlet enters three phase separator progress grease and consolidates three phase separation, the water phase pump after separation Enter intermediate pool;Further, the oil mutually enters oil storage tank.Further, the oily conduct that will be stored in the oil storage tank Crude oil is purified again or is directly recycled.
Specifically, oil separator water outlet, which enters three phase separator, consolidates three phase separation for grease, the water phase after separation is pumped into centre Pond is kept in, and to adjust follow-up equipment inflow, oil mutually enters oil storage tank, and solid phase is discharged into sludge-tank, and water outlet oil content is 27.4mg/L。
Step 130: the water outlet of the intermediate pool enters dissolved air flotation device, fills in the intermediate pool and the air bearing Demulsifier is added in conveyance conduit between setting;
Specifically, the water outlet of the intermediate pool enters dissolved air flotation device, in the intermediate pool and the molten gas gas Bodied ferric sulfate 0.38mg/L, polyacrylamide 17.2mg/L are added in conveyance conduit between floating device, passes through demulsification And air bearing acts on further oil removing, the sludge of generation enters greasy filth pond, and water outlet oil content is 1.6mg/L.
Step 140: the water outlet of the dissolved air flotation device enters anaerobic reactor, and the water outlet of the anaerobic reactor enters Denitrogenation dephosphorisation reaction pond adds medicament in denitrogenation dephosphorisation reaction pond, is formed after guanite and carries out solid-liquid by sedimentation basin Separation;Further, described in progress pH adjusting makes in the connecting pipe of the dissolved air flotation device and the anaerobic reactor PH value is maintained within the scope of 5-8, and the water outlet of the dissolved air flotation device stops 5-15 days in the anaerobic reactor.Further , the medicament is magnesium chloride: ammonia nitrogen molar ratio is within the scope of 1:1~1.5:1, phosphoric acid: ammonia nitrogen molar ratio is in 1:2~2:1 model In enclosing, it includes the phosphate in the kitchen garbage Leachate site that wherein phosphoric acid, which calculates dosage,.Further, the air-dissolving air-float Turbulence device is arranged in device water inlet.
Specifically, the water outlet of the dissolved air flotation device enter the anaerobic reactor, the dissolved air flotation device into Entering to carry out pH adjusting in the pipeline of the anaerobic reactor makes pH be maintained at 6 or so, stops 5.2 in the anaerobic reactor It, CODcr removal rate 87%, while ammonia nitrogen is converted by organic nitrogen, the surplus mud of generation is discharged into sludge-tank;By the anaerobism The water outlet of reactor is passed through denitrogenation dephosphorisation reaction pond, and added amount of chemical ratio is magnesium chloride: ammonia nitrogen: phosphoric acid molar ratios exist 1.43:1:0.98 forms guanite and is separated by solid-liquid separation by sedimentation basin, and guanite precipitating is recycled as fertilizer, water outlet CODcr content is 1020mg/L, ammonia nitrogen 21mg/L, total phosphorus 12mg/L, pH=8.6.
Step 150: the water outlet of the sedimentation basin enters moving bed biofilm reactor, to remaining organic matter and ammonia nitrogen and Phosphorus further removes;
Specifically, the water outlet of the sedimentation basin enters the aerobic moving bed biofilm reactor, to remaining organic matter It is further removed with ammonia nitrogen and phosphorus, is discharged CODcr content 58mg/L, ammonia nitrogen 7mg/L, total phosphorus 10mg/L, pH=8.6, contains Oil mass is in 1mg/L or less.
Step 160: the water outlet of the moving bed biofilm reactor enters sludge filtration system, the sludge filtration system Water outlet enter depth film processing system processing;
Specifically, the water outlet of the moving bed biofilm reactor enters the ultrafiltration membrane system, remaining mud is carried out Separation, the sludge of generation enter sludge-tank, and the water outlet of the ultrafiltration membrane system enters depth film processing system.At the depth film Reason system is reverse osmosis membrane system.
Step 170: the water outlet of the film advanced treatment system carries out disinfection into sterilization pool, and acquisition reaches discharge standard Water.
It carries out disinfection specifically, the reverse osmosis water outlet is passed through sterilization pool, the water after disinfection can reach discharge through detection Standard or municipal recycle water standard.
The technical solution provided in the embodiment of the present application, has at least the following technical effects or advantages:
1, the embodiment of the present invention is by providing a kind of kitchen garbage percolation liquid treatment method, which comprises kitchen Garbage leachate, which enters after grid maker, is passed through oil separator by the water outlet of the grid maker;Oil separator water outlet is entered into three-phase Separator carries out oil, water, solid three phase separation;Three phase separator water outlet is entered into intermediate pool;The intermediate pool goes out Water enters air-floating apparatus;The water outlet of the air-floating apparatus enters anaerobic reactor, and the water outlet of the anaerobic reactor enters denitrogenation Dephosphorisation reaction pond;The water outlet in denitrogenation dephosphorisation reaction pond enters sedimentation basin;The water outlet of the sedimentation basin enters moving bed biological Membrane reactor;The water outlet of the moving bed biofilm reactor enters sludge filtration system;The water outlet of the sludge filtration system Into film advanced treatment system;The water outlet of the film advanced treatment system carries out disinfection into sterilization pool.Through the invention, it solves Hydraulic detention time is long in kitchen garbage filtration process, and equipment and tank volume are big, and processing cost is high, at grease, suspended matter Reason is difficult, the low problem of resource recovery, reaches treatment effeciency height, saves equipment investment, reduces processing cost and energy consumption, effectively The technical effect of resource reclaim.
2, by grid maker, three phase separator and air-floating apparatus, three-level removal is carried out to suspended matter in Leachate site, is reduced Into biological treatment system and film advanced treatment system suspension content, guarantee that water quality reaches into water requirement.
3, by oil separator, three phase separator and air-floating apparatus, three-level removal is carried out to grease in Leachate site, is lowered into Biological treatment system and film advanced treatment system fat content guarantee that water quality reaches into water requirement.
4, organic matter is most of in Leachate site removes in anaerobic reaction, and remainder is gone by moving bed biofilm reactor It removes, ammonia nitrogen is by being chemically removed, compared with through the denitrogenation of nitration denitrification bioanalysis, hence it is evident that improve removal efficiency, greatly Hydraulic detention time is reduced greatly, reaction pool volume is reduced, reduces system energy consumption.
5, most of organic matter is converted into biogas in anaerobic reactor in Leachate site, and biogas can be further as the energy Resource utilization, therefore the present invention has carried out effective resource recycling to organic matter in kitchen garbage Leachate site.
6, protein is converted into ammonia nitrogen in anaerobic reactor in Leachate site, after being precipitated by adding chemical agent To guanite, guanite can be used as fertilizer and carry out resource utilization, thus the present invention to ammonia nitrogen in kitchen garbage Leachate site into Effective resource recycling is gone.
7, grease is separated by oil separator, three phase separator into oil storage tank in Leachate site, and grease is made in oil storage tank Can be with purified rear progress resource utilization for crude oil rouge, therefore the present invention has carried out effectively grease in kitchen garbage Leachate site Resource recycling.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims (9)

1. a kind of kitchen garbage percolation liquid treatment method, which is characterized in that the described method includes:
Kitchen garbage Leachate site, which enters after grid maker, is passed through oil separator by the water outlet of the grid maker;
Oil separator water outlet is entered into three phase separator and carries out oil, water, solid three phase separation;
Three phase separator water outlet is entered into intermediate pool;
The water outlet of the intermediate pool enters air-floating apparatus;
The water outlet of the air-floating apparatus enters anaerobic reactor;
The water outlet of the anaerobic reactor enters denitrogenation dephosphorisation reaction pond, in denitrogenation dephosphorisation reaction pond according to ammonia in water, Nitrogen, phosphorus content add medicament, be separated by solid-liquid separation after forming guanite by sedimentation basin;
The water outlet of the sedimentation basin enters moving bed biofilm reactor, further goes to remaining organic matter and ammonia nitrogen and phosphorus It removes;
The water outlet of the moving bed biofilm reactor enters sludge filtration system;
The water outlet of the sludge filtration system enters film advanced treatment system;
The water outlet of the film advanced treatment system carries out disinfection into sterilization pool.
2. the method as described in claim 1, which is characterized in that the water outlet by the grid maker be passed through oil separator it Afterwards, the method also includes:
Grease is pushed in oil collecting pipe by the Oil scraper that the oil separator face is arranged in and flows into oil storage tank Leachate site at the middle and upper levels;Institute The heavy oil to precipitate in oil separator is stated, is accumulated in bottom of pond bucket, the heavy oil and other impurities are filtered laggard Enter oil storage tank.
3. the method as described in claim 1, which is characterized in that described that grease is consolidated three phase separation, further includes:
The oil mutually enters oil storage tank.
4. the method as described in claim 1, which is characterized in that the conveying between the intermediate pool and the air-floating apparatus Demulsifier is added in pipeline, turbulence device is arranged in the air-floating apparatus water inlet.
5. the method as described in claim 1, which is characterized in that the water outlet of the air-floating apparatus enters anaerobic reactor and also wraps It includes:
PH adjusting is carried out in the connecting pipe of the air-floating apparatus and the anaerobic reactor, and the pH value is made to be maintained at 5-8 In range, the water outlet of the air-floating apparatus stops 5-15 days in the anaerobic reactor.
6. the method as described in claim 1, which is characterized in that the medicament is magnesium chloride: ammonia nitrogen molar ratio is in 1:1~1.5: In 1 range, phosphoric acid: ammonia nitrogen molar ratio is within the scope of 1:2~2:1, and wherein the dosage of phosphorus includes the kitchen garbage Leachate site In phosphate.
7. method as claimed in claim 2 or claim 3, which is characterized in that using the oil stored in the oil storage tank as crude oil into Row is purified again or is directly recycled.
8. the method as described in claim 1, which is characterized in that by the methane purification generated in the anaerobic reactor or directly It recycles.
9. the method as described in claim 1, which is characterized in that using the guanite generated in denitrogenation dephosphorisation reaction pond as Fertilizer is recycled by other approach.
CN201810880237.1A 2018-08-03 2018-08-03 A kind of kitchen garbage percolation liquid treatment method Pending CN108947137A (en)

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