CN110498563A - Leachate in garbage transfer station is without film integrated processing system and method - Google Patents
Leachate in garbage transfer station is without film integrated processing system and method Download PDFInfo
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- CN110498563A CN110498563A CN201910739196.9A CN201910739196A CN110498563A CN 110498563 A CN110498563 A CN 110498563A CN 201910739196 A CN201910739196 A CN 201910739196A CN 110498563 A CN110498563 A CN 110498563A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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Abstract
The present invention relates to leachate in garbage transfer station without film integrated processing system, including raw water water tank, grid pond, conditioning tank, biochemical treatment apparatus, flocculation sedimentation tank, zeolite adsorption tank and ecological wetland, the outlet of raw water water tank and the entrance of grid pond connect, the outlet of grid pond and the entrance of conditioning tank connect, the entrance of conditioning tank and biochemical treatment apparatus is connected by elevator pump, the liquid outlet of biochemical treatment apparatus and the liquid inlet of flocculation sedimentation tank connect, the connection of the dosing mouth of chemicals dosing plant and flocculation sedimentation tank, the liquid outlet of flocculation sedimentation tank is connect with the entrance of zeolite adsorption tank, the outlet of zeolite adsorption tank and the entrance of ecological wetland connect；Also disclose its processing method.The present invention combines simple materialization+biochemical technology+wetland technology, cost of investment is low, O&M difficulty is small, without that can reach GB/T31962-2015 " sewage is discharged into town sewer water standard " A grades of discharge standards after concentrate secondary pollution and processing, and the power and energy consumption of operation is greatly saved.
Description
Technical field
The present invention relates to technical field of sewage, especially leachate in garbage transfer station without film integrated processing system and
Method.
Background technique
In order to realize volume reduction, the decrement of bulk refuse, rubbish is needed after being transported to terminal by compression processing, in height
During degree compression, contained moisture is extruded out in rubbish, this effluent part is referred to as compression percolate.In rubbish
Turning compression percolate in the waste water of station is main pollutant sources, if dealing with improperly to it, penetrates into soil and the underground on periphery
In water, irreversible environmental pollution will cause.It is extremely difficult for going to administer again after pollution, is not only have danger to environment
Evil threatens human health there is also potential, if pollutant enters human body with food chain, will seriously affect human health.Cause
This, it is necessary to landfill leachate is effectively handled, its influence to environment is minimized.
The processing of terminal percolate at this stage often uses membrane technology, including membrane bioreactor
(MBR) technology handled sewage, MBR, instead of traditional secondary settling tank, are spatially realized using micro-filtration and ultrafiltration membrane
It completely separates between solid retention time (SRT, i.e. sludge sludge age) and hydraulic detention time (HRT).In higher water outlet
Under it is required that, it can be also equipped with nanofiltration membrane and reverse osmosis membrane, to pollutant concentration significant effect is reduced, reach emission request.
But for the processing of garbage transfer station waste water, although film process outlet effect is fine, the technique
Cost of investment is higher, and is easy to pollute film for terminal percolate higher for pollutant concentration, to operation
Management is made troubles, and the cleaning and replacement of film also result in operating cost increase, is handled simultaneously for the filtered concentrate of film
And a great problem for needing to solve.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, and it is integrated without film to provide a kind of leachate in garbage transfer station
Processing system and method, at low cost, O&M is simple, can reach GB/T31962-2015 without concentrate secondary pollution and after handling
" sewage is discharged into town sewer water standard " A grades of discharge standards.
The purpose of the present invention is achieved through the following technical solutions:
Leachate in garbage transfer station is without film integrated processing system, including at raw water water tank, grid pond, conditioning tank, biochemistry
Device, flocculation sedimentation tank, zeolite adsorption tank and ecological wetland are managed, the outlet of the raw water water tank and the entrance of grid pond connect,
The outlet of the grid pond and the entrance of conditioning tank connect, and the entrance of the conditioning tank and the biochemical treatment apparatus passes through promotion
Pump connection, the liquid outlet of the biochemical treatment apparatus and the liquid inlet of flocculation sedimentation tank connect, and chemicals dosing plant and flocculation are heavy
The dosing mouth in shallow lake pond connects, and the liquid outlet of the flocculation sedimentation tank is connect with the entrance of zeolite adsorption tank, the zeolite absorption
The outlet in pond and the entrance of ecological wetland connect.
Further, the biochemical treatment apparatus includes anaerobic pond, level-one aerobic tank, first stage precipitation tank, oxygen compatibility pool, second level
Aerobic tank, second-level settling pond and aeration component, the outlet of the elevator pump are connect with anaerobic pond, the outlet of the anaerobic pond and one
The entrance connection of grade aerobic tank, the outlet of the level-one aerobic tank and the entrance of first stage precipitation tank connect, the first stage precipitation tank
Liquid outlet and the entrance of oxygen compatibility pool connect, the outlet of the oxygen compatibility pool connect with the entrance of second level aerobic tank, the second level
The upper outlet of aerobic tank and the entrance of second-level settling pond connect, the liquid outlet of second-level settling pond and the liquid of flocculation sedimentation tank
Entrance connection, the aeration component are respectively that level-one aerobic tank, oxygen compatibility pool and second level aerobic tank provide oxygen,
The sludge outlet of the first stage precipitation tank is connected with the outer comb of the first sludge, the middle part of the outer comb of first sludge
It is connect with one end of the first mud return line, the other end of first mud return line is connect with anaerobic pond, and described first is dirty
First sludge reflux pump is installed on the pipeline of mud return pipe,
The sludge outlet of the second-level settling pond is connected with the outer comb of the second sludge, the middle part of the outer comb of second sludge
It is connect with one end of the second mud return line, the other end of second mud return line and the entrance of oxygen compatibility pool connect, described
Second sludge reflux pump is installed on the pipeline of the second mud return line,
The lower part outlet of the second level aerobic tank is connect with one end of mixed liquor return pipe, the mixed liquor return pipe it is another
The entrance of one end and oxygen compatibility pool connects, and is equipped with mixed liquor reflux pump on the pipeline of the mixed liquor return pipe.
Further, the aeration component includes air pump, supervisor, branch pipe and micro porous aeration head, the outlet of the air pump with
Supervisor's connection, is connected with more branch pipes in turn, the exit of every branch pipe is separately installed with a micropore on the pipeline of supervisor
Aeration head, micro porous aeration head sink to the bottom of the bottom of level-one aerobic tank, the bottom of oxygen compatibility pool and second level aerobic tank respectively.
Further, the chemicals dosing plant includes dosing pond, chemical feed pipe and dosing pump, one end of the chemical feed pipe and dosing
The outlet in pond connects, and the other end of the chemical feed pipe and the dosing mouth of flocculation sedimentation tank connect, and pacifies on the pipeline of the chemical feed pipe
Equipped with dosing pump.
Further, it is separately filled with composite filling in the level-one aerobic tank, oxygen compatibility pool and second level aerobic tank, described group
It closes filler to be made of elastic solid filler and ecological matrix, the filling rate of the composite filling is 60~80%, the micro-pore aeration
Head is located at the bottom of corresponding composite filling.
Further, the volume ratio of the anaerobic pond, level-one aerobic tank, oxygen compatibility pool and second level aerobic tank is 4:5~6:
4:5~6.
Leachate in garbage transfer station is without film integral treatment method, using the leachate in garbage transfer station without film one
Change processing system to be handled, comprising the following steps:
In S1, the percolate deposit raw water water tank for generating garbage transfer station, the percolate in raw water water tank enters grid
Chi Zhong, grid pond filter out high concentration suspended matter, big partial size pollutant and a part of organic matter in percolate；
S2, percolate enter in conditioning tank from grid pond overflow, and percolate is adjusted, and are uniformly mixed it；
S3, conditioning tank treated percolate enter biochemical treatment apparatus by elevator pump, carry out denitrogenation to percolate and remove
Phosphorus processing, while removing removal organic polluter；
S4, enter flocculation sedimentation tank from the water outlet of biochemical treatment apparatus, added by chemicals dosing plant into flocculation sedimentation tank
Flocculant is adsorbed from the water outlet of flocculation sedimentation tank liquid outlet by zeolite adsorption tank, and what is exported from zeolite adsorption tank goes out
Water is expelled directly out after ecological wetland, the water quality of discharge: COD content≤200mg/L, ammonia-nitrogen content≤15mg/L, total phosphorus contain
Amount≤5mg/L.
Further, in step S3, biochemical treatment apparatus is divided into two-stage AO processing, in which: first when handling percolate
Grade AO processing is completed by anaerobic pond, level-one aerobic tank and first stage precipitation tank, and the poly- phosphorus microorganism in anaerobic pond release the mistake of phosphorus
Journey, level-one aerobic tank carry out excess and inhale phosphorus, and the return sludge ratio of first order AO processing is 60~85%；AO processing in the second level is by simultaneous
Oxygen pond, second level aerobic tank and second-level settling pond are completed, and carry out biological denitrificaion, and the return sludge ratio of second level AO processing is 60~
80%, return current ratio of the mixed liquid is 150~250%.
Further, the anaerobic pond processing time is 2~3 days, and the level-one aerobic tank processing time is 2.5~4.5 days, simultaneous
The oxygen pond processing time is 2~3 days, and the second level aerobic tank processing time is 2.5~4.5 days.
Further, in step S4, the flocculant is PAFC coagulant.
The invention has the following advantages that
1, in conjunction with materialization+biochemical technology+wetland technology, so that it may which reaching GB/T31962-2015, " sewage is discharged under cities and towns
Water channel water standard " A grades of discharge standards, the power and energy consumption of operation is greatly saved.
2, the composite filling that elastic solid filler and ecological matrix are combined form is applied in wastewater treatment, by experiment
Prove, the composite filling turn to stand in processes percolate when, have that biofilm is fast, microbial is abundant, degradation of contaminant is high-efficient
The advantages that, significantly improve the efficiency of biochemistry pool removal pollutant.
3, under suitable return sludge ratio and return current ratio of the mixed liquid, two-stage AO can undertake high sludge loading, can handle
Dense terminal percolate, and it is stable.
4, detailed biochemistry pool sludge acclimatization method is provided, this method can shorten the sludge acclimatization phase, shift to an earlier date system
Reach steady operational status.
5, ecological wetland can purify again materialization and bio-chemical effluent, and sandstone adsorbs suspended matter, and Plant To Nutrient object carries out
It absorbs.
6, compared to film process, cost of investment is low with operation cost, and the development for being more in line with current social technology becomes
Gesture.
7, group technology core is using activated sludge technology, and technology maturation, O&M difficulty is low, and dirty without film
Dye solves the problems, such as to generate concentrate using membrane process.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is frame connection schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of biochemical treatment apparatus of the invention；
Fig. 4 is the structural schematic diagram of aeration component of the invention；
Fig. 5 is the structural schematic diagram of chemicals dosing plant of the invention；
Fig. 6 is the COD concentration curve of present invention different phase in two-stage AO processing；
Fig. 7 is the ammonia nitrogen concentration curve graph of present invention different phase in two-stage AO processing；
Fig. 8 is the total phosphorus concentration curve graph of present invention different phase in two-stage AO processing；
Fig. 9 is the COD concentration curve of different phase in the embodiment of the present invention 1；
Figure 10 is the COD removal rate curve graph of different phase in the embodiment of the present invention 1；
Figure 11 is the ammonia nitrogen concentration curve graph of different phase in the embodiment of the present invention 1；
Figure 12 is the ammonia nitrogen removal frank curve graph of different phase in the embodiment of the present invention 1；
Figure 13 is the total phosphorus concentration curve graph of different phase in the embodiment of the present invention 1；
Figure 14 is total tp removal rate curve graph of different phase in the embodiment of the present invention 1；
Figure 15 is the COD concentration curve of different phase in the embodiment of the present invention 2；
Figure 16 is the COD removal rate curve graph of different phase in the embodiment of the present invention 2；
Figure 17 is the ammonia nitrogen concentration curve graph of different phase in the embodiment of the present invention 2；
Figure 18 is the ammonia nitrogen removal frank curve graph of different phase in the embodiment of the present invention 2；
Figure 19 is the total phosphorus concentration curve graph of different phase in the embodiment of the present invention 2；
Figure 20 is total tp removal rate curve graph of different phase in the embodiment of the present invention 2；
In figure: 1- raw water water tank, 2- grid pond, 3- conditioning tank, 4- elevator pump, 5- biochemical treatment apparatus, 5a- anaerobic pond,
5b- level-one aerobic tank, 5c- first stage precipitation tank, 5d- oxygen compatibility pool, 5e- second level aerobic tank, 5f- second-level settling pond, 5g- aeration group
Part, 5g1- air pump, 5g2- supervisor, 5g3- branch pipe, 5g4- micro porous aeration head, the outer comb of the first sludge of 5h-, the first sludge of 5i- return
Flow tube, the first sludge reflux pump of 5j-, the outer comb of the second sludge of 5k-, the second mud return line of 5m-, the second sludge reflux pump of 5n-,
5p- mixed liquor return pipe, 5q- mixed liquor reflux pump, 6- flocculation sedimentation tank, 7- chemicals dosing plant, 7a- dosing pond, 7b- chemical feed pipe,
7c- dosing pump, 8- zeolite adsorption tank, 9- ecological wetland.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As depicted in figs. 1 and 2, leachate in garbage transfer station is without film integrated processing system, including raw water water tank 1, grid
Pond 2, conditioning tank 3, biochemical treatment apparatus 5, flocculation sedimentation tank 6, zeolite adsorption tank 8 and ecological wetland 9, the raw water water tank 1
Outlet is connect with the entrance of grid pond 2, and the outlet of the grid pond 2 is connect with the entrance of conditioning tank 3, the conditioning tank 3 and institute
The entrance for stating biochemical treatment apparatus 5 is connected by elevator pump 4, the liquid outlet and flocculation sedimentation tank 6 of the biochemical treatment apparatus 5
Liquid inlet connection, chemicals dosing plant 7 connect with the dosing mouth of flocculation sedimentation tank 6, the liquid outlet of the flocculation sedimentation tank 6 and
The entrance of zeolite adsorption tank 8 connects, and the outlet of the zeolite adsorption tank 8 is connect with the entrance of ecological wetland 9.It is set in grid pond 2
Twice grid, one of coarse rack are set, one of fine fack separates percolate middle and high concentration suspended matter and the biggish pollutant of partial size,
Avoid the obstruction of subsequent sewage pump；A part of organic matter can also be removed by grid, the effect of conditioning tank 3 is to percolate
Preparatory adjusting is carried out, uniform mixed liquor is formed it into, while being equipped with oil removal structure in conditioning tank 3, can remove most of oil
Substance, barrier grease enter biochemical treatment apparatus 5, and biochemical treatment apparatus 5 carries out denitrogenation dephosphorizing processing to percolate, goes simultaneously
Removal organic polluter, the design of elevator pump 4 can form percolate stable supplying, while can also increase the flowing shape of percolate
At for selection zeolite as adsorbent material, partial size is 5~10mm, and the filling rate in zeolite adsorption tank 8 is 50~70%, is used
Zeolite can further decrease coloration, COD and the ammonia nitrogen of system water outlet, and ecological wetland 9 is using multistage trench architectures, every grade of irrigation canals and ditches
Between using UPVC pipeline connect, junction use elbow lower edge, avoid blocking.Trench bottom is laid with sandstone, ceramic particle, kind
Soil is planted, the suspended matter in drainage can be crossed, the plant of plantation absorbs the nutritional ingredient in water body again, and it is dense to reduce each pollutant
Degree.
Further, as shown in figure 3, the biochemical treatment apparatus 5 is heavy including anaerobic pond 5a, level-one aerobic tank 5b, level-one
Shallow lake pond 5c, oxygen compatibility pool 5d, second level aerobic tank 5e, second-level settling pond 5f and aeration component 5g, the outlet and anaerobism of the elevator pump 4
The outlet of pond 5a connection, the anaerobic pond 5a is connect with the entrance of level-one aerobic tank 5b, the outlet of the level-one aerobic tank 5b with
The entrance of first stage precipitation tank 5c connects, and the liquid outlet of the first stage precipitation tank 5c is connect with the entrance of oxygen compatibility pool 5d, described simultaneous
The outlet of oxygen pond 5d is connect with the entrance of second level aerobic tank 5e, the upper outlet and second-level settling pond 5f of the second level aerobic tank 5e
Entrance connection, the liquid outlet of second-level settling pond 5f connect with the liquid inlet of flocculation sedimentation tank 6, and the aeration component 5g divides
Oxygen is not provided for level-one aerobic tank 5b, oxygen compatibility pool 5d and second level aerobic tank 5e,
The sludge outlet of the first stage precipitation tank 5c is connected with the outer comb 5h of the first sludge, the outer comb 5h of first sludge
Middle part connect with one end of the first mud return line 5i, the other end of the first mud return line 5i and anaerobic pond 5a connect
It connects, the first sludge reflux pump 5j is installed on the pipeline of the first mud return line 5i,
The sludge outlet of the second-level settling pond 5f is connected with the outer comb 5k of the second sludge, the outer comb 5k of second sludge
Middle part connect with one end of the second mud return line 5m, the other end of the second mud return line 5m and entering for oxygen compatibility pool 5d
Mouth connects, and is equipped with the second sludge reflux pump 5n on the pipeline of the second mud return line 5m,
The lower part outlet of the second level aerobic tank 5e is connect with one end of mixed liquor return pipe 5p, the mixed liquor return pipe
The other end of 5p is connect with the entrance of oxygen compatibility pool 5d, is equipped with mixed liquor reflux pump on the pipeline of the mixed liquor return pipe 5p
5q。
Further, as shown in figure 4, the aeration component 5g includes that air pump 5g1, supervisor 5g2, branch pipe 5g3 and micropore expose
The outlet of gas head 5g4, the air pump 5g1 are connect with supervisor 5g2, are connected with more branch pipes in turn on the pipeline of supervisor 5g2
5g3, the exit of every branch pipe 5g3 are separately installed with a micro porous aeration head 5g4, and micro porous aeration head 5g4 sinks to level-one respectively
The bottom of the bottom of aerobic tank 5b, the bottom of oxygen compatibility pool 5d and second level aerobic tank 5e.
Further, described as shown in figure 5, the chemicals dosing plant 7 includes dosing pond 7a, chemical feed pipe 7b and dosing pump 7c
One end of chemical feed pipe 7b is connect with the outlet of dosing pond 7a, the other end of the chemical feed pipe 7b and the dosing mouth of flocculation sedimentation tank 6
It connects, dosing pump 7c is installed on the pipeline of the chemical feed pipe 7b.
Further, it is separately filled with composite filling in the level-one aerobic tank 5b, oxygen compatibility pool 5d and second level aerobic tank 5e,
The composite filling is made of elastic solid filler and ecological matrix, and the filling rate of the composite filling is 60~80%, described micro-
Hole aeration head 5g4 is located at the bottom of corresponding composite filling, and composite filling shears the aeration component 5g bubble generated, and
The biomembrane being attached on composite filling is stirred to accelerate the update of biomembrane by ascending air.By elastic solid filler
The composite filling for being combined form with ecological matrix applies in wastewater treatment, by laboratory pilot plant test, it is found that the combination is filled out
When material turns station percolate in processes, has many advantages, such as that biofilm is fast, microbial is abundant, degradation of contaminant is high-efficient, significantly mention
The high efficiency of biochemistry pool removal pollutant.
Further, the volume ratio of the anaerobic pond 5a, level-one aerobic tank 5b, oxygen compatibility pool 5d and second level aerobic tank 5e are
4:5~6:4:5~6, the volume ratio of design may insure the processing quality optimized and treatment effeciency.
Leachate in garbage transfer station is without film integral treatment method, using the leachate in garbage transfer station without film one
Change processing system to be handled, comprising the following steps:
In S1, the percolate deposit raw water water tank 1 for generating garbage transfer station, the percolate in raw water water tank 1 enters lattice
In grid pond 2, grid pond 2 filters out high concentration suspended matter, big partial size pollutant and a part of organic matter in percolate；
S2, percolate enter in conditioning tank 3 from 2 overflow of grid pond, and percolate is adjusted, and are uniformly mixed it；
S3, conditioning tank 3 treated percolate enter biochemical treatment apparatus 5 by elevator pump 4, carry out denitrogenation to percolate
Dephosphorization processing, while removing removal organic polluter；
S4, enter flocculation sedimentation tank 6 from the water outlet of biochemical treatment apparatus 5, through chemicals dosing plant 7 into flocculation sedimentation tank 6
Flocculant is added, is adsorbed from the water outlet of 6 liquid outlet of flocculation sedimentation tank by zeolite adsorption tank 8, is gone out from zeolite adsorption tank 8
The water outlet of mouth is expelled directly out after ecological wetland 9, the water quality of discharge: COD content≤200mg/L, ammonia-nitrogen content≤15mg/L,
Total phosphorus content≤5mg/L.
In above-mentioned leachate in garbage transfer station without in film integral treatment method, the biochemical treatment apparatus 5 is used
Sludge seeding method domestication culture microorganism, specific step is as follows for sludge seeding method domestication culture: taking moisture content 80%~90%
The dewatered sludge containing aerobic nitrification bacterium, be then configured to sludge quality concentration be 3~5g/L activated sludge, by anaerobic pond
It is injected separately into the activated sludge of total volume 60% in 5a, level-one aerobic tank 5b, oxygen compatibility pool 5d and second level aerobic tank 5e, passes through promotion
Percolate is squeezed into anaerobic pond 5a by pump 4, and anaerobic pond dissolved oxygen is controlled in 0.1~0.5mg/L.Start aeration component 5g simultaneously to simultaneous
Oxygen pond 5d and level-one aerobic tank 5b, second level aerobic tank 5e are supplied oxygen, control oxygen compatibility pool 5d dissolved oxygen be 0.5~1mg/L, one
The dissolved oxygen of grade aerobic tank 5b and second level aerobic tank 5e is 3~5mg/L.The terminal of total volume 5% was squeezed within first 10 days every 2 days
Percolate squeezes into the terminal percolate of total volume 5% for latter 5 days daily, can be gradually after each pond full water of biochemical treatment apparatus 5
Conditioning tank percolate inflow is increased to improve load, until reaching design inflow, and gradually that nitrification tank sludge quality is dense
Degree is improved to 4~8g/L, and sludge loading reaches 0.8~1.6kgCOD/kgMLSSd.
Further, in step S3, biochemical treatment apparatus 5 is divided into two-stage AO (Anoxic Oxic when handling percolate
Abbreviation, AO Process is also anaerobic-aerobic Process) processing, in which: first order AO processing is by anaerobic pond 5a, level-one aerobic tank
5b and first stage precipitation tank 5c is completed, and the poly- phosphorus microorganism in anaerobic pond 5a release the process of phosphorus, and level-one aerobic tank 5b is surpassed
Amount inhales phosphorus, and the return sludge ratio of first order AO processing is 60~85%；AO processing in the second level is by oxygen compatibility pool 5d, second level aerobic tank 5e
It is completed with second-level settling pond 5f, carries out biological denitrificaion, the return sludge ratio of second level AO processing is 60~80%, mixed liquor reflux
Than being 150~250%, by designing reflux ratio, treatment effeciency and processing of the whole system to ammonia nitrogen and total phosphorus are improved
Quality, it is ensured that the stability and reliability of whole system operation, meanwhile, also ensure processing quality.The two-stage AO of design is handled
Respectively dephosphorization and denitrification process, the two be combined with each other, and carry out denitrogenation dephosphorizing while removing organic matter.The biochemistry of two-stage AO
Processing unit 5 stable can degrade to percolate, adapt to the variation of variation water quality, stable effluent quality exists: COD content
For 500-2000mg/L, as shown in fig. 6, ammonia-nitrogen content is 50-100mg/L, as shown in fig. 7, total phosphorus content is 20-40mg/L,
As shown in Figure 8.
Further, the anaerobic pond 5a processing time is 2~3 days, and the level-one aerobic tank 5b processing time is 2.5~4.5
It, the oxygen compatibility pool 5d processing time is 2~3 days, and the second level aerobic tank 5e processing time is 2.5~4.5 days.
Further, in step S4, the flocculant is PAFC coagulant, and PAFC coagulant is first configured to solution, with pump
Squeeze into, 500~1000ppm of dosage, the coagulation time is 3~5min, and the sedimentation time is 10~15min, can with efficient dephosphorization and
Remove part COD.
Leachate in garbage transfer station is further described without film integral treatment method by embodiment now:
Embodiment 1:
Leachate in garbage transfer station, day output 3t, COD content mean value 11500mg/L, ammonia-nitrogen content mean value 350mg/
L, total phosphorus content 200mg/L.
For the above leachate in garbage transfer station feature, processing method the following steps are included:
The percolate that S1, garbage transfer station generate passes through grid pond 2, removes a part of organic matter by grid effect；
S2, percolate enter conditioning tank 3 from grid pond 2, uniformly mix to percolate；
S3, conditioning tank 3 treated percolate enter biochemical treatment apparatus 5 by elevator pump 4, carry out denitrogenation to percolate
Dephosphorization processing, while removing removal organic polluter；
The water outlet of S4, biochemical treatment apparatus 5 flow into flocculation sedimentation tank 6, and percolate carries out flocculation sedimentation；
The supernatant water outlet of S5, coagulative precipitation tank 6 enter zeolite adsorption tank 8, and percolate was adsorbed by zeolite adsorption tank 8
Ecological wetland 9 is discharged into after filter, percolate is expelled directly out after ecological wetland 9；
Ecological wetland 9 uses irrigation canals and ditches form, and bottom is laid with sandstone, planting soil etc., and water and floating plant are endured in plantation.Grid pond
One of coarse rack (30 mesh) and one of fine fack (60 mesh) are set in 2.Conditioning tank 3 uses fluid reservoir.
Biochemical treatment apparatus 5 is two-stage AO, and level-one AO is anaerobism+aerobic, volume ratio 4:5, and return sludge ratio is arranged
80%；Second level AO is simultaneous oxygen+aerobic, volume ratio 4:5, and sludge reflux 70%, mixed liquor reflux 150% is arranged.Biochemical treatment dress
5 are set using biological contact oxidation process, is equipped with composite filling and aeration component 5g.Composite filling selects elastic solid filler and ecology
The composite filling of base phase combining form, the filling rate of composite filling are 70%.Aeration component 5g is filled out using micro-pore aeration in combination
Expect that bottom carries out blast aeration.
Biochemical treatment apparatus 5 is taken from neighbouring sewage treatment plant containing aerobic using sludge seeding method domestication culture microorganism
The dewatered sludge moisture content 80%~90% of nitrifier is configured to the activated sludge water that sludge quality concentration is 3~5g/L.It will detest
The activated sludge that total volume 60% is injected in oxygen pond 5a and aerobic tank, squeezes into anaerobic pond for terminal percolate by elevator pump 4
In 5a, oxygen compatibility pool 5d and aerobic tank, anaerobic pond 5a dissolved oxygen is controlled in 0.1~0.5mg/L.Booster air pump 5g1 simultaneously, to simultaneous oxygen
Pond 5d is supplied oxygen with aerobic tank, and the dissolved oxygen of control oxygen compatibility pool 5d is 0.5~1mg/L, and the dissolved oxygen of aerobic tank is 3~5mg/
L.The terminal percolate of total volume 5% was squeezed within first 10 days every 2 days, squeezed within latter 5 days the terminal diafiltration of total volume 5% daily
Liquid can gradually increase conditioning tank percolate inflow after each pond full water of biochemical treatment apparatus 5 to improve load, until reaching
Inflow is designed, and gradually improves nitrification tank sludge quality concentration to 4~8g/L, sludge loading reaches 0.8-1.6kgCOD/
kgMLSS·d。
Dosing pond 7a uses PLC control system Automatic Dosing, and coagulant selects PAFC coagulant, is first configured to concentrated solution,
It is squeezed into pump, dosage 650ppm, the coagulation time is 3min；Sedimentation time is 12min.
Adsorption tank selects zeolite as adsorbent material, partial size 5-10mm, filling rate 50%.
Coloration, COD and the ammonia nitrogen of system water outlet can be further decreased using zeolite.
Ecological wetland 9 uses multistage irrigation canals and ditches form, is connected between every grade of irrigation canals and ditches using UPVC pipeline, junction uses elbow
Lower edge avoids blocking.Trench bottom is laid with sandstone, ceramic particle, planting soil, can cross the suspended matter in drainage, the plant of plantation
Object absorbs the nutritional ingredient in water body again, reduces each index concentration.
When two-stage AO- coagulation-absorbing process is continuously handled garbage transfer station waste water, the removal effect of at different levels couples of COD
Fruit, such as Fig. 9 and Figure 10, influent COD value between 6750~15675mg/L, two-stage AO be discharged COD value 232~604mg/L it
Between, most organic matters can be removed by the two-stage AO stage.Coagulation unit be discharged COD value 186~320mg/L it
Between.Zeolite unit water outlet COD value floats up and down in 70.5~132.5mg/L.Water outlet reaches water outlet and requires.
Two-stage AO- coagulation-adsorption combined technology is to NH in garbage transfer station waste water3Removal situation such as Figure 11 and Figure 12 of-N
It is shown, during continuous operation, NH of intaking3For-N between 221~425.5mg/L, two-stage AO is discharged NH3- N value 18.9~
Between 70.2mg/L, coagulation unit is discharged NH3For-N value between 11.3~23.1, zeolite unit is discharged NH3- N value 3.2~
It floats up and down between 7.6mg/L.
Two-stage AO- coagulation-combination of zeolites technique to removal situation such as Figure 13 of TP (total phosphorus) in garbage transfer station waste water and
Shown in Figure 14, intake TP value (total phosphorus value) between 119~244mg/L, two-stage AO be discharged TP value 7.5~17.5mg/L it
Between, coagulation unit is discharged TP value between 4.8~12.5mg/L, and it is upper and lower between 3.2~4.3mg/L that zeolite unit is discharged TP value
It floats.Water outlet reaches requirement.
Embodiment 2:
Leachate in garbage transfer station, day output 5t, COD content mean value 12500mg/L, ammonia-nitrogen content mean value 380mg/
L, total phosphorus content 255mg/L.
For the above leachate in garbage transfer station feature, processing method the following steps are included:
The percolate that S1, garbage transfer station generate passes through grid pond 2, removes a part of organic matter by grid effect；
S2, percolate enter conditioning tank 3 from grid pond 2, uniformly mix to percolate；
S3, conditioning tank 3 treated percolate enter biochemical treatment apparatus 5 by elevator pump 4, carry out denitrogenation to percolate
Dephosphorization processing, while removing removal organic polluter；
The water outlet of S4, biochemical treatment apparatus 5 flow into flocculation sedimentation tank 6, and percolate carries out flocculation sedimentation；
The supernatant water outlet of S5, coagulative precipitation tank 6 enter zeolite adsorption tank 8, and percolate was adsorbed by zeolite adsorption tank 8
Ecological wetland 9 is discharged into after filter, percolate is expelled directly out after ecological wetland 9；
Ecological wetland 9 uses irrigation canals and ditches form, and bottom is laid with sandstone, planting soil etc., and water and floating plant are endured in plantation.Grid pond
One of coarse rack (40 mesh) of middle setting and one of fine fack (70 mesh).
Conditioning tank 3 uses fluid reservoir.
Biochemical treatment apparatus 5 is two-stage AO, and level-one AO is anaerobism+aerobic, volume ratio 2:3, and return sludge ratio 70% is arranged；
Second level AO is simultaneous oxygen+aerobic, volume ratio 2:3, and sludge reflux 80%, mixed liquor reflux 200% is arranged.Biochemical treatment apparatus 5 is adopted
With biological contact oxidation process, it is equipped with composite filling and aeration component 5g.Filler selects elastic solid filler and ecological matrix to be combined
The composite filling of form, the filling rate of composite filling are 70%.Aeration component 5g is roused using micro-pore aeration in filler bottom
Wind aeration.
Biochemical treatment apparatus 5 is taken from neighbouring sewage treatment plant containing aerobic using sludge seeding method domestication culture microorganism
The dewatered sludge moisture content 80%~90% of nitrifier is configured to the activated sludge water that sludge quality concentration is 3~5g/L.It will detest
The activated sludge that total volume 60% is injected in oxygen pond 5a and aerobic tank, squeezes into anaerobic pond for terminal percolate by elevator pump 4
In 5a, oxygen compatibility pool 5d and aerobic tank, anaerobic pond 5a dissolved oxygen is controlled in 0.1~0.5mg/L.Booster air pump 5g1 simultaneously, to simultaneous oxygen
Pond 5d is supplied oxygen with aerobic tank, and the dissolved oxygen of control oxygen compatibility pool 5d is 0.5~1mg/L, and the dissolved oxygen of aerobic tank is 3~5mg/
L.The terminal percolate of total volume 5% was squeezed within first 10 days every 2 days, squeezed within latter 5 days the terminal diafiltration of total volume 5% daily
Liquid can gradually increase conditioning tank percolate inflow after each pond full water of biochemical treatment apparatus 5 to improve load, until reaching
Inflow is designed, and gradually improves nitrification tank sludge quality concentration to 4~8g/L, sludge loading reaches 0.8-1.6kgCOD/
kgMLSS·d。
Dosing pond 7a uses PLC control system Automatic Dosing, and coagulant selects PAFC coagulant, is first configured to concentrated solution,
It is squeezed into pump, dosage 750ppm, the coagulation time is 5min；Sedimentation time is 15min.
Adsorption tank selects zeolite as adsorbent material, partial size 5-10mm, filling rate 60%.
Coloration, COD and the ammonia nitrogen of system water outlet can be further decreased using zeolite.
Ecological wetland 9 uses multistage irrigation canals and ditches form, is connected between every grade of irrigation canals and ditches using UPVC pipeline, junction uses elbow
Lower edge avoids blocking.Trench bottom is laid with sandstone, ceramic particle, planting soil, can cross the suspended matter in drainage, the plant of plantation
Object absorbs the nutritional ingredient in water body again, reduces each index concentration.
When two-stage AO- coagulation-absorbing process is continuously handled garbage transfer station waste water, the removal effect of at different levels couples of COD
Fruit is as shown in Figure 15 and Figure 16, influent COD value between 9325~13675mg/L, two-stage AO be discharged COD value 172~
Between 742mg/L, most organic matters can be removed by the two-stage AO stage.Coagulation unit be discharged COD value 82.5~
252.5mg/L between, zeolite unit water outlet COD value floats up and down in 126~192.5mg/L.Water outlet reaches water outlet and requires.
Removal the situation such as Figure 17 and Figure 18 of two-stage AO- coagulation-adsorption combined technology to NH3-N in garbage transfer station waste water
It is shown, during continuous operation, NH of intaking3For-N between 230~589mg/L, two-stage AO is discharged NH3- N value 18.9~
Between 50.9mg/L, coagulation unit is discharged NH3For-N value between 10.1~19.9, zeolite unit is discharged NH3- N value 3.8~
It floats up and down between 9.2mg/L.Water outlet reaches requirement.
Removal situation such as Figure 19 and Figure 20 institute of the two-stage AO- coagulation-combination of zeolites technique to TP in garbage transfer station waste water
Show, for TP value of intaking between 196.4~407mg/L, two-stage AO is discharged TP value between 10~34.9mg/L, the water outlet of coagulation unit
Between 6.8~14mg/L, zeolite unit water outlet TP value floats up and down TP value between 3.9~4.8mg/L.Water outlet, which reaches, to be wanted
It asks.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. leachate in garbage transfer station is without film integrated processing system, it is characterised in that: including raw water water tank (1), grid pond
(2), conditioning tank (3), biochemical treatment apparatus (5), flocculation sedimentation tank (6), zeolite adsorption tank (8) and ecological wetland (9), the original
The outlet of water tank (1) is connect with the entrance of grid pond (2), and the outlet of the grid pond (2) and the entrance of conditioning tank (3) connect
It connects, the conditioning tank (3) is connect with the entrance of the biochemical treatment apparatus (5) by elevator pump (4), the biochemical treatment apparatus
(5) liquid outlet is connect with the liquid inlet of flocculation sedimentation tank (6), the dosing mouth of chemicals dosing plant (7) and flocculation sedimentation tank (6)
Connection, the liquid outlet of the flocculation sedimentation tank (6) are connect with the entrance of zeolite adsorption tank (8), the zeolite adsorption tank (8)
Outlet is connect with the entrance of ecological wetland (9).
2. leachate in garbage transfer station according to claim 1 is without film integrated processing system, it is characterised in that: the life
Changing processing unit (5) includes that anaerobic pond (5a), level-one aerobic tank (5b), first stage precipitation tank (5c), oxygen compatibility pool (5d), second level are aerobic
Pond (5e), second-level settling pond (5f) and aeration component (5g), the outlet of the elevator pump (4) is connect with anaerobic pond (5a), described
The outlet of anaerobic pond (5a) is connect with the entrance of level-one aerobic tank (5b), and the outlet of the level-one aerobic tank (5b) and level-one precipitate
The entrance in pond (5c) connects, and the liquid outlet of the first stage precipitation tank (5c) is connect with the entrance of oxygen compatibility pool (5d), described and oxygen
The outlet in pond (5d) is connect with the entrance of second level aerobic tank (5e), the upper outlet and two-stage precipitation of the second level aerobic tank (5e)
The entrance in pond (5f) connects, and the liquid outlet of second-level settling pond (5f) is connect with the liquid inlet of flocculation sedimentation tank (6), the exposure
Pneumatic module (5g) is respectively that level-one aerobic tank (5b), oxygen compatibility pool (5d) and second level aerobic tank (5e) provide oxygen,
The sludge outlet of the first stage precipitation tank (5c) is connected with the outer comb (5h) of the first sludge, the outer comb of first sludge
The middle part of (5h) is connect with the one end of the first mud return line (5i), the other end and anaerobism of first mud return line (5i)
Pond (5a) connects, and is equipped with the first sludge reflux pump (5j) on the pipeline of first mud return line (5i),
The sludge outlet of the second-level settling pond (5f) is connected with the outer comb (5k) of the second sludge, the outer comb of second sludge
The middle part of (5k) is connect with the one end of the second mud return line (5m), the other end of second mud return line (5m) and and oxygen
The entrance in pond (5d) connects, and is equipped with the second sludge reflux pump (5n) on the pipeline of second mud return line (5m),
The lower part outlet of the second level aerobic tank (5e) is connect with one end of mixed liquor return pipe (5p), the mixed liquor return pipe
The other end of (5p) is connect with the entrance of oxygen compatibility pool (5d), and mixed liquor is equipped on the pipeline of the mixed liquor return pipe (5p) and is returned
Stream pump (5q).
3. leachate in garbage transfer station according to claim 2 is without film integrated processing system, it is characterised in that: the exposure
Pneumatic module (5g) includes air pump (5g1), is responsible for (5g2), branch pipe (5g3) and micro porous aeration head (5g4), the air pump (5g1)
Outlet is connect with supervisor (5g2), is connected with more branch pipes (5g3), every branch pipe (5g3) in turn on the pipeline of supervisor (5g2)
Exit be separately installed with a micro porous aeration head (5g4), micro porous aeration head (5g4) sinks to level-one aerobic tank (5b) respectively
The bottom of bottom, the bottom of oxygen compatibility pool (5d) and second level aerobic tank (5e).
4. leachate in garbage transfer station according to claim 1 is without film integrated processing system, it is characterised in that: described to add
Medicine device (7) includes dosing pond (7a), chemical feed pipe (7b) and dosing pump (7c), one end and dosing pond of the chemical feed pipe (7b)
The outlet of (7a) connects, and the other end of the chemical feed pipe (7b) is connect with the dosing mouth of flocculation sedimentation tank (6), the chemical feed pipe
Dosing pump (7c) is installed on the pipeline of (7b).
5. leachate in garbage transfer station according to claim 3 is without film integrated processing system, it is characterised in that: described one
It is separately filled with composite filling in grade aerobic tank (5b), oxygen compatibility pool (5d) and second level aerobic tank (5e), the composite filling is by bullet
Property 3-D filler and ecological matrix composition, the filling rate of the composite filling be 60~80%, the micro porous aeration head (5g4) is located at
The bottom of corresponding composite filling.
6. leachate in garbage transfer station according to claim 5 is without film integrated processing system, it is characterised in that: described
Anaerobic pond (5a), level-one aerobic tank (5b), oxygen compatibility pool (5d) and second level aerobic tank (5e) volume ratio be 4:5~6:4:5~6.
7. leachate in garbage transfer station uses the rubbish as described in claim 1~6 any one without film integral treatment method
Terminal percolate is handled without film integrated processing system, it is characterised in that: the following steps are included:
In S1, percolate deposit raw water water tank (1) for generating garbage transfer station, the percolate in raw water water tank (1) enters lattice
In grid pond (2), grid pond (2) carries out high concentration suspended matter, big partial size pollutant and a part of organic matter in percolate
It filters out；
S2, percolate enter in conditioning tank (3) from grid pond (2) overflow, and percolate is adjusted, and are uniformly mixed it, adjust
Save water quality and quantity；
S3, conditioning tank (3) treated percolate enter biochemical treatment apparatus (5) by elevator pump (4), take off to percolate
Nitrogen dephosphorization processing, while removing removal organic polluter；
S4, enter flocculation sedimentation tank (6) from the water outlet of biochemical treatment apparatus (5), by chemicals dosing plant (7) to flocculation sedimentation tank
(6) flocculant is added in, is adsorbed from the water outlet of flocculation sedimentation tank (6) liquid outlet by zeolite adsorption tank (8), from zeolite
The water outlet of adsorption tank (8) outlet is expelled directly out after ecological wetland (9), the water quality of discharge: COD content≤200mg/L, ammonia nitrogen
Content≤15mg/L, total phosphorus content≤5mg/L.
8. leachate in garbage transfer station according to claim 7 is without film integral treatment method, it is characterised in that: step S3
In, biochemical treatment apparatus (5) is divided into two-stage AO processing when handling percolate, in which: first order AO processing is by anaerobic pond
(5a), level-one aerobic tank (5b) and first stage precipitation tank (5c) are completed, and the poly- phosphorus microorganism in anaerobic pond (5a) release the mistake of phosphorus
Journey, level-one aerobic tank (5b) carry out excess and inhale phosphorus, and the return sludge ratio of first order AO processing is 60~85%；Second level AO processing
It is completed by oxygen compatibility pool (5d), second level aerobic tank (5e) and second-level settling pond (5f), carries out biological denitrificaion, the dirt of second level AO processing
Mud reflux ratio is 60~80%, and return current ratio of the mixed liquid is 150~250%.
9. leachate in garbage transfer station according to claim 8 is without film integral treatment method, it is characterised in that: described to detest
Oxygen pond (5a) the processing time is 2~3 days, and level-one aerobic tank (5b) the processing time is 2.5~4.5 days, when oxygen compatibility pool (5d) is handled
Between be 2~3 days, second level aerobic tank (5e) handle the time be 2.5~4.5 days.
10. leachate in garbage transfer station according to claim 7 is without film integral treatment method, it is characterised in that: step
In S4, the flocculant is PAFC coagulant.
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