CN205974184U - Processing system of landfill leachate embrane method concentrate - Google Patents
Processing system of landfill leachate embrane method concentrate Download PDFInfo
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- CN205974184U CN205974184U CN201620909168.9U CN201620909168U CN205974184U CN 205974184 U CN205974184 U CN 205974184U CN 201620909168 U CN201620909168 U CN 201620909168U CN 205974184 U CN205974184 U CN 205974184U
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Abstract
The utility model discloses a processing system of landfill leachate embrane method concentrate, include the soft coagulating sedimentation tank of the complex of establishing ties through pipeline order in proper order, ozone oxidation reaction ware, the pond of hydrolysising, anaerobism MBR pond, nanofiltration device and pressure contaction oxidation reactor. The utility model discloses not only be applicable to the landfill leachate membrane and strain the processing of concentrate, also be applicable to other membrane concentrates that contain higher difficult degradation organic concentration simultaneously and handle.
Description
Technical field
This utility model is related to garbage percolation liquid treating system, specifically, is related to a kind of percolate that is directed to and passes through
The system that reverse osmosis membrane, NF membrane or concentrated solution produced by other filtration embrane method process are processed.
Background technology
Country promulgates within 2008《Household refuse landfill sites Environmental capacity standard》(GB16889-2008), to garbage filter
The process of liquid is put forward higher requirement, and nowadays adopts NF, RO membrane treatment process process percolate more.Rubbish percolation liquid membrane
Filter concentration liquid is the residual liquid that percolate retains through NF film (or RO film) after biodegradation, and typically not having can be biochemical
Property, Main Ingredients and Appearance is humus material, and in brownish black, COD is very high, and contains substantial amounts of inorganic ionss, and TDS is 20000
Between～60000mg/L, generally between 1000～5000mg/L, ammonia nitrogen concentration in 100～1000mg/L, electrical conductivity is COD
40000～50000us/cm.
The volume of film-filter concentration liquid accounts for the 20%～30% of percolate stoste volume.Because concentrated solution contains various difficulties
The organic and inorganic pollution of degraded, directly discharge may produce pollution to soil, surface water, ocean etc.；If entering municipal administration
Sewage disposal system, too high total dissolved solid is also unfavorable to the growth of activated sludge.Therefore for the product reducing concentrated solution
The research that amount, concentrated solution continue with is necessary.
At present had using main processing method：Recharge, evaporation are dried, solidify, burning etc..By embrane method Concentrated liquid recharge
To refuse landfill, garbage storing hole or percolate storage pool, long-term circulation can lead to the tired of salt and Organic substance in percolate
Long-pending, thus leading to biochemical treatment system effect to be deteriorated, increase burden and the expense of embrane method system operation.Evaporation drying is by embrane method
In concentrated solution, soluble solids is separated from water, and vaporizer corrosion resistance is had high demands, and energy consumption is big, and operating cost is higher.This
Outward, the partial organic substances in embrane method concentrated solution are volatile, and evaporation process is dealt with improperly and easily caused secondary pollution.Cured is profit
With the mud that flying dust or sewage disposal produce, cured is carried out to embrane method concentrated solution, then transport the residue of mummification to rubbish
Landfill yard carries out innoxious landfill.Because the garbage disposal after solidification makes processing cost increase, embrane method concentrated solution is being processed
During need to account for and economic analysis with reference to soot practical situation.High-level oxidation technology is to process garbage filter at present
The proper treatment technology of concentrated liquor, the speed of high-level oxidation technology degradation of organic substances is very fast, such as O3/ UV system and O3/
H2O2System oxidation degradation process, and the intermediate product in oxidizing process all can continue same hydroxyl radical reaction, until last
It is oxidized to carbon dioxide and water completely.
But, because rubbish percolation liquid membrane concentrated solution pollutant levels are too high, if using single chemical oxidization method, its
Operating cost is too high.If using the relatively low biological treatment of operating cost, the biodegradability of pollutant is again very low.If adopted
With membrane treatment process, the problem of fouling membrane is difficult to solve again.Therefore, current percolate embrane method concentrated solution is badly in need of one kind simply
The deep treatment method of the embrane method concentrated solution that effectively, energy consumption is low, operating cost is low.
Utility model content
In order to overcome the shortcomings of above-mentioned percolate embrane method concentrated solution processing method, this utility model provides a kind of rubbish
The processing system of percolate embrane method concentrated solution, makes the treatment effect of embrane method concentrated solution reliable and stable, has relatively low operating cost
Higher removal efficiency, water outlet is capable of qualified discharge.
Core thinking of the present utility model is for high salt water quality, using the biodegradability of kinds of processes lifting waste water, and
Realizing the separation of divalent salts, monovalent salt and Organic substance by membrance separation, thus solving the problems, such as the accumulation of salt, and greatly improving useless
The biodegradability of water, can biochemical waste water make full use of at percolate (not being concentrated solution) front road biochemistry processing procedure
Reason.Utilize anaerobism MBR to solve Denitrogenation simultaneously.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is as follows：
A kind of processing system of percolate embrane method concentrated solution, including by the compound softening of pipeline successively sequential series
Coagulative precipitation tank, ozone oxidation reaction device, hydrolytic tank, anaerobic membrane bioreactor pond (anaerobism MBR pond), nanofiltration device and pressure
Contact oxidation reactor.
Wherein, described percolate embrane method concentrated solution be by percolate through reverse osmosis membrane or NF membrane
Or other filters produced concentrated solution after embrane method is processed.
Wherein, described compound softening coagulative precipitation tank, is made up of reaction of high order pond and sedimentation tank.
Wherein, described reaction of high order pond is 3～4 grades, and reaction tanks at different levels are all provided with dynamic agitating device or carry out waterpower
Agitating device.
Wherein, described ozone oxidation reaction device, including ozonator and reactor, ozonator is placed in reactor
Interior, ozonator is air source ozone generator or oxygen source ozone generator.
Wherein, described hydrolytic tank and anaerobic membrane bioreactor pond are built jointly or are divided with anaerobic membrane bioreactor pond and build.
Wherein, described anaerobic membrane bioreactor pond, including anaerobic pond and membrane biological reaction device assembly two parts；Anaerobism
Pond adopts up-flow anaerobic reactor；Membrane biological reaction device assembly adopts built-in hyperfiltration membrane assembly or external ultrafilter membrane group
Part.
Wherein, described pressure contact oxidation reactor is closed tank, and tank interior fills biologic packing material；Wherein, institute
The biologic packing material stated, is any one of granular active carbon, coke, anthracite, haydite and soft, semi soft packing and floating stuffing
Kind.
Wherein, series connection more medium filter after described pressure contact oxidation reactor.
A kind of processing method of percolate embrane method concentrated solution, percolate embrane method concentrated solution sequentially passes through compound soft
Change coagulative precipitation tank, ozone oxidation reaction device, hydrolytic tank and anaerobism MBR pond, the water outlet of anaerobism MBR pond enters nanofiltration system；
Nanofiltration system processes the permeate obtaining after pressure contact oxidation reactor for treatment, directly discharge or many Jie of warp
Mass filter discharges after filtering；
Nanofiltration system processes the concentrated solution that obtains and mixes with percolate and returns to the biochemical section of pre-treatment, through biochemistry, MBR,
The concentrated solution obtaining after embrane method concentration is re-circulated into compound softening coagulative precipitation tank and subsequent operation.
Wherein, described percolate embrane method concentrated solution be by percolate through reverse osmosis membrane or NF membrane
Or other filters produced concentrated solution after embrane method is processed.
Wherein, described percolate embrane method concentrated solution, Main Ingredients and Appearance be humus material, TDS be 20000～
60000mg/L, COD are 1000～5000mg/L, and ammonia nitrogen concentration is 100～1000mg/L, and TN concentration is 500～2500, conductance
Rate is 40000～50000us/cm.
Wherein, described compound softening coagulative precipitation tank, is made up of reaction of high order pond and sedimentation tank；Waste water first passes through many
Order reaction pond, then enters back into sedimentation tank precipitation, and reaction tank water outlet enters sedimentation tank precipitation, reduces useless hardness of water and removes
COD.Wherein, described reaction of high order pond is 3～4 grades, and reaction tanks at different levels are all provided with dynamic agitating device or carry out hydraulic mixing；
Add alkaline matter in 1～2 order reaction pond starting；In first order reaction pond behind, reaction tank adds containing aluminum or iron content coagulation
Agent, final stage reaction tank adds polyacrylamide high polymer coagulant.Wherein, described alkaline matter is sodium carbonate, sodium hydroxide
With any one or a few the mixture in calcium hydroxide, the total mole number that adds of described alkaline matter is calcium and magnesium in waste water
0.5～3 times of ion total mole number；Described containing aluminum or iron content coagulant be aluminum sulfate, aluminum chloride, iron sulfate, iron chloride or
The polymer of any of the above-described material, the described dosage containing aluminum or iron content coagulant is 40～2000mg/L；Described poly- third
The dosage of acrylamide high polymer coagulant is calculated as 1～10mg/L in mass ratio.Waste water is in compound softening coagulative precipitation tank
Total residence time is 2～10h.
Wherein, described ozone oxidation reaction device, including ozonator and reactor, ozonator is placed in reactor
Interior, ozonator is air source ozone generator or oxygen source ozone generator, the COD of ozone dosage and handled water
Ratio be 0.1～1:1.Retention time of sewage in ozone oxidation reaction device is controlled to 0.3～2h.Ozone oxidation reaction device tank body
Can be made up of metal or nonmetallic materials, civil engineering structure may also be employed.
Wherein, described hydrolytic tank and anaerobism MBR pond are built jointly or are divided with anaerobism MBR pond and build.
Wherein, total residence time in hydrolytic tank for the waste water is 4～20h.
Wherein, described anaerobism MBR pond, including anaerobic pond and MBR module two parts；Anaerobic pond adopts up-flow anaerobism anti-
Answer device；MBR module adopts built-in hyperfiltration membrane assembly or external hyperfiltration membrane assembly.Total stop in anaerobism MBR pond for the waste water
Time is 10～60h.
Wherein, described pressure contact oxidation reactor is closed tank, and water inlet, by jet-flow aeration mode, carries dissolving
Oxygen enters tank body, and tank interior fills biologic packing material, and reactor inner air pressure is 0.2～0.8MPa；Wherein, described biology
Filler, including granular active carbon, coke, anthracite, haydite and soft, semi soft packing and floating stuffing any one or
Several mixture.
Wherein, the nanofiltration membrane component that described nanofiltration system adopts has selectivity through performance, to bivalence or more high price
State metal ion has good rejection effect.
This utility model method is applicable not only to the process of percolate film-filter concentration liquid, is simultaneously applicable to other and contains
The membrance concentration liquid of higher hardly degraded organic substance concentration is processed.
Beneficial effect：This utility model compared with prior art has advantages below：
1) effectively advanced oxidation is processed and anaerobic bio-treated combines, reduce processing cost to greatest extent and carry
High treatment efficiency.Ozone oxidation is remarkably improved the biodegradability of waste water.Simultaneously as the presence of follow-up anaerobic treatment so that
One-level ozone oxidation concentrates the Recalcitrant chemicals in liquid without exhaustive oxidation percolate, and only needs to destroy pollutant knot
Structure, improves pollutant biodegradability.Therefore reduce ozone dosage to greatest extent.
2) biochemical processing process that this utility model is selected is anaerobic membrane bioreactor.Anaerobic reactor is divided into hydrolysis section
With anaerobism section.Anaerobism and hydrolytic process process to hardly degraded organic substance and play the role of uniqueness, directly not only can reduce COD,
Macromole hardly degraded organic substance open loop and chain rupture can also be become small molecule labile organic compound, thus improving treatment effect,
And aerobic treatment process does not then possess this function.Therefore, for comparing aerobic MBR, anaerobism MBR concentrates for percolate
The treatment effeciency of liquid is higher.
3) organic nitrogen in percolate and ammonia-nitrogen content are very high, contain substantial amounts of nitre in waste water after biochemical pretreatment
Hydrochlorate, denitrogenation very difficult it is difficult to reach discharge standard.Aerobic MBR is low to the removal efficiency of nitrate nitrogen, and this project adopts
Anaerobism MBR has fabulous denitrification efficiency, and the small organic molecule that can not only be produced by the use of ozone oxidation is carried out as carbon source
Denitrogenation, also can occur Anammox reaction denitrogenation under anaerobic, can significantly reduce the total of concentrated solution with remaining ammonia nitrogen
Nitrogen discharged.
4) this utility model pretreatment adopts complex coagulation depositing technology, can remove hardness and calcium ions and magnesium ions, to useless
Organic substance in water also has significant removal effect.The organic loading of anaerobic treatment can greatly be reduced, prevent anaerobism simultaneously
MBR produces inorganic matters fouling membrane.
5) utility model post processing adopts nanofiltration and pressure contact oxidation combination of reactors technique.Nanofiltration technique can enter one
Organic substance in step reduction waste water is it is ensured that stable water outlet is up to standard.Meanwhile, for the salinity in minimizing system, this project is selected
Nanofiltration is as post processing secondary filter.Nanofiltration has preferable permeability to monovalent ion, carries out accurate mistake using nanofiltration technique
Filter will not significantly improve the salinity of concentrated solution, so that the salinity of biochemical system keeps stable.
6) in order to lift the effect of water outlet further, the end of handling process is provided with pressure contact oxidation reactor, enters
One step improves effluent quality.Because the Organic substance in NF membrane permeate is small molecule, biodegradability is good.In pressure contact oxygen
Change in reactor, high pressure is formed by intake pump, the transport resistance of oxygen reduces under high pressure, and mixed liquor in the air oxygen is to microorganism
The efficiency of transfer greatly enhances, and can improve the activated sludge concentration in reactor, makes that in reactor, biomembrane character is fluffy, is difficult
Conglomeration, activity is remarkably reinforced.Be conducive to the propagation of active sludge microorganism and the degraded of Organic substance.Thus ensureing aqueous concentration very
Low.It is provided with filter layer, stable effluent quality is secure inside pressure contact oxidation device.
Brief description
Fig. 1 is this utility model processing system schematic diagram.Wherein, 1 be compound soften coagulative precipitation tank, 2 be ozone oxidation
Reactor, 3 be hydrolytic tank, 4 be anaerobic membrane bioreactor pond, 5 be nanofiltration device, 6 be pressure contact oxidation reactor, 7 be
More medium filter.
Fig. 2 is the process route chart that percolate embrane method concentrated solution obtains.
Fig. 3 is the flow chart of this utility model handling process.
Specific embodiment
According to following embodiments, this utility model may be better understood.However, those skilled in the art easily manages
Solution, the content described by embodiment is merely to illustrate this utility model, and should not also without limitation on institute in claims in detail
This utility model of thin description.
Embodiment 1：
As shown in figure 1, a kind of processing system of percolate embrane method concentrated solution, including by pipeline successively sequential series
Compound softening coagulative precipitation tank 1, ozone oxidation reaction device 2, hydrolytic tank 3, anaerobic membrane bioreactor pond (anaerobism MBR pond) 4,
Nanofiltration device 5 and pressure contact oxidation reactor 6.
Wherein, described compound softening coagulative precipitation tank 1, is made up of reaction of high order pond and sedimentation tank.Described is multistage anti-
3～4 grades of Ying Chiwei, reaction tanks at different levels are all provided with dynamic agitating device or carry out hydraulic agitation device.Described ozone oxidation is anti-
Answer device 2, including ozonator and reactor, ozonator is placed in reactor, ozonator is that air source ozone is sent out
Raw device or oxygen source ozone generator.Described hydrolytic tank 3 and anaerobic membrane bioreactor 4 pond are built jointly or anti-with anaerobic membrane biosystem
Answer device pond to divide to build.Described anaerobic membrane bioreactor pond 4, including anaerobic pond and membrane biological reaction device assembly two parts；Anaerobism
Pond adopts up-flow anaerobic reactor；Membrane biological reaction device assembly adopts built-in hyperfiltration membrane assembly or external ultrafilter membrane group
Part.Described pressure contact oxidation reactor 6 is closed tank, and tank interior fills biologic packing material；Wherein, described biology is filled out
Material, be granular active carbon, coke, anthracite, haydite and soft, semi soft packing and floating stuffing any one.Described
Series connection more medium filter 7 after pressure contact oxidation reactor 6.
Embodiment 2：
Typical percolate processes and nanofiltration, reverse osmosis concentrated liquid produce process and see Fig. 1.Percolate is through grid pretreatment system
System enters regulating reservoir, and subsequently into UBF anaerobic system, anaerobic effluent enters intermediate pool, and intermediate pool water outlet sequentially enters instead
Nitrification tank and two sections of aerobic nitrification ponds.Nitrification tank water outlet enters tubular ultra-filtration membrane system.Ultrafiltration dope is back to denitrification pond.Super
Cleaner liquid squeezes into nanofiltration system after entering Clear liquid tank again, produces nanofiltration concentrate and clear liquid, and nanofiltration clear liquid can directly discharge, or
Squeeze into counter-infiltration system after collecting through nanofiltration Clear liquid tank again, produce reverse osmosis concentrated liquid and counter-infiltration clear liquid.
In the process, the membrance concentration that the dope of nanofiltration and reverse osmosiss generation produces during being landfill leachate treatment
Liquid.
Embodiment 3：
The rubbish percolation liquid membrane concentrated solution that embodiment 2 is obtained first passes around compound softening coagulative precipitation tank, is combined and softens
Coagulative precipitation tank is made up of 3 order reaction ponds and sedimentation tank, and the 1st order reaction pond adds sodium carbonate, sodium carbonate add total mole number
For 1 times of calcium ions and magnesium ions total mole number in waste water, the 2nd order reaction pond adds 200mg/L aluminium polychlorid, and 3rd level reaction tank is thrown
Plus 2mg/L polyacrylamide high polymer coagulant PAM, total reaction time is 30min, subsequently into sedimentation tank precipitation, reduces useless
Hardness of water simultaneously removes COD, and waste water is 3h in the compound total residence time softening in coagulative precipitation tank.
Sedimentation tank water outlet enters ozone oxidation reaction device and is processed, and described ozone oxidation reaction device is sent out including ozone
Raw device and reactor, ozonator is placed in reactor, and ozonator adopts oxygen source ozone generator, ozone dosage
Ratio with the COD of handled water is 0.5:1, the response time is 1.5h.
Ozone oxidation reaction device water outlet enters back into compound pond, and compound pond is divided into 2 grades, and one-level is hydrolytic tank, and two grades is anaerobism
MBR pond, total residence time in hydrolytic tank for the waste water is 12h.Described anaerobism MBR pond, including anaerobic pond and MBR module two
Point；Anaerobic pond adopts up-flow anaerobic reactor；MBR module adopts external hyperfiltration membrane assembly.Waste water is in anaerobism MBR pond
Total residence time is 24h.
The water outlet of anaerobism MBR pond initially enters after intermediate pool collects, then squeezes into nanofiltration system by pump, nanofiltration permeate liquid by
Jet is pumped to pressure contact oxidation reactor, and pressure contact oxidation reactor control pressure is 0.45MPa, and built-in plastics suspend
Filler and ceramic grain filter, pressure contact oxidation reactor water outlet is directly discharged.Nanofiltration concentrate is mixed with percolate and returns to
Pre-treatment biochemistry section, the concentrated solution obtaining after biochemistry, MBR, embrane method concentration is re-circulated into compound softening coagulating sedimentation
Pond and subsequent operation.The clean-up effect of whole system such as table 1.
Table 1 embodiment 1 clean-up effect
Embodiment 4：
The rubbish percolation liquid membrane concentrated solution that embodiment 2 is obtained first passes around compound softening coagulative precipitation tank, is combined and softens
Coagulative precipitation tank is made up of 4 order reaction ponds and sedimentation tank, and the 1st～2 order reaction pond adds sodium hydroxide, and adding of sodium hydroxide is total
Molal quantity is 0.8 times of calcium ions and magnesium ions total mole number in waste water, and the 2nd order reaction pond adds 500mg/L bodied ferric sulfate, 3rd level
Reaction tank adds 2mg/L polyacrylamide high polymer coagulant PAM, and total reaction time is 60min, sinks subsequently into sedimentation tank
Form sediment, reduce useless hardness of water and remove COD, waste water is 5h in the compound total residence time softening in coagulative precipitation tank.
Sedimentation tank water outlet enters ozone oxidation reaction device and is processed, and described ozone oxidation reaction device is sent out including ozone
Raw device and reactor, ozonator is placed in reactor, and ozonator adopts oxygen source ozone generator, ozone dosage
Ratio with the COD of handled water is 1:1, the response time is 1h.
Ozone oxidation reaction device water outlet enters back into compound pond, and compound pond is divided into 2 grades, and one-level is hydrolytic tank, and two grades is anaerobism
MBR pond, total residence time in hydrolytic tank for the waste water is 8h.Described anaerobism MBR pond, including anaerobic pond and MBR module two
Point；Anaerobic pond adopts up-flow anaerobic reactor；MBR module adopts built-in flat-plate ultrafiltration membrane assembly, and is produced using anaerobism
Gas inner circulating aerating stirs, and blower fan adopts rustless steel blower fan.Total residence time in anaerobism MBR pond for the waste water is 16h.
The water outlet of anaerobism MBR pond initially enters after intermediate pool collects, then squeezes into nanofiltration system by pump, nanofiltration permeate liquid by
Jet is pumped to pressure contact oxidation reactor and carries out biological cleaning, and pressure contact oxidation reactor control pressure is 0.8MPa,
Built-in plastics floating stuffing and activated carbon, pressure contact oxidation reactor water outlet is discharged after more medium filter filtration again.
Nanofiltration concentrate mix with percolate return to pre-treatment biochemistry section, obtain after biochemistry, MBR, embrane method concentration is dense
Contracting liquid is re-circulated into compound softening coagulative precipitation tank and subsequent operation.The clean-up effect of whole system such as table 2.
Table 2 embodiment 2 clean-up effect
Claims (9)
1. a kind of processing system of percolate embrane method concentrated solution is it is characterised in that include by pipeline successively sequential series
Compound softening coagulative precipitation tank, ozone oxidation reaction device, hydrolytic tank, anaerobic membrane bioreactor pond, nanofiltration device and pressure
Contact oxidation reactor.
2. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described rubbish
Percolate embrane method concentrated solution is that percolate will be produced through reverse osmosis membrane or NF membrane or other filtration after embrane method is processed
Raw concentrated solution.
3. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described is compound
Soften coagulative precipitation tank, be made up of reaction of high order pond and sedimentation tank.
4. the processing system of percolate embrane method concentrated solution according to claim 3 is it is characterised in that described is multistage
Reaction tank is 3～4 grades, and reaction tanks at different levels are all provided with dynamic agitating device or carry out hydraulic agitation device.
5. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described ozone
Oxidation reactor, including ozonator and reactor, ozonator is placed in reactor, and ozonator is that air source is smelly
Oxygen Generator or oxygen source ozone generator.
6. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described hydrolysis
Pond and anaerobic membrane bioreactor pond are built jointly or are divided with anaerobic membrane bioreactor pond and build.
7. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described anaerobism
Membrane bioreactor pond, including anaerobic pond and membrane biological reaction device assembly two parts；Anaerobic pond adopts up-flow anaerobic reactor；
Membrane biological reaction device assembly adopts built-in hyperfiltration membrane assembly or external hyperfiltration membrane assembly.
8. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described pressure
Contact oxidation reactor is closed tank, and tank interior fills biologic packing material；Wherein, described biologic packing material, is seed activity
Charcoal, coke, anthracite, haydite and soft, semi soft packing and floating stuffing any one.
9. the processing system of percolate embrane method concentrated solution according to claim 1 is it is characterised in that described pressure
Series connection more medium filter after contact oxidation reactor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316802A (en) * | 2019-07-05 | 2019-10-11 | 上海电力大学 | A method of processing garbage burning factory percolate nanofiltration concentrate |
| CN111099786A (en) * | 2018-10-26 | 2020-05-05 | 深圳市中天环境有限公司 | Garbage leachate treatment process |
| CN113307402A (en) * | 2021-05-21 | 2021-08-27 | 南京信息工程大学 | Landfill leachate treatment system and treatment method |
-
2016
- 2016-08-18 CN CN201620909168.9U patent/CN205974184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099786A (en) * | 2018-10-26 | 2020-05-05 | 深圳市中天环境有限公司 | Garbage leachate treatment process |
| CN110316802A (en) * | 2019-07-05 | 2019-10-11 | 上海电力大学 | A method of processing garbage burning factory percolate nanofiltration concentrate |
| CN113307402A (en) * | 2021-05-21 | 2021-08-27 | 南京信息工程大学 | Landfill leachate treatment system and treatment method |
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