CN105439389B - A kind of landfill leachate zero-discharge treatment system - Google Patents
A kind of landfill leachate zero-discharge treatment system Download PDFInfo
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward osmosis
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a kind of landfill leachate zero-discharge treatment systems, and including grid collecting-tank, the water outlet of grid collecting-tank is connected to the water inlet of regulating reservoir by pipeline and water pump；The water outlet of regulating reservoir is connected to the water inlet of hydrolysis acidification pool by pipeline and water pump；The water outlet of hydrolysis acidification pool is connected to the water inlet of A2/O reactors by pipeline and water pump, and the water outlet of A2/O reactors connects the water inlet of ultrafiltration apparatus by pipeline with water pump；The water outlet of ultrafiltration apparatus is connected to the water inlet of positive penetration equipment by pipeline and water pump；The water outlet of positive penetration equipment is connected to the water inlet of reverse osmosis equipment by pipeline；The water outlet of reverse osmosis equipment is connected to the water inlet of disinfection pool by pipeline.Its is simple in structure, realizes landfill leachate zero-emission, and energy conservation and environmental protection reduces cost.
Description
Technical field
The present invention relates to field of waste water treatment, particularly a kind of landfill leachate zero-discharge treatment system.
Background technology
Landfill leachate has the characteristics that pollution concentration height, complicated component, variation are extremely unstable, and main feature is as follows：
1st, variation water quality is big, leachate quality change over time it is larger, leachate quality be variation, daily variation factor one
As up to 200% and 300%, and the water quality of aged landfill yard change over time it is more larger.Leachate quality is filled out in different
It is also very big to bury time period difference.In black, good biodegradability is easily handled usual initial landfill stage percolate；And during with landfill
Between extension, percolate is gradually brown, and biodegradability is deteriorated, and ammonia nitrogen concentration significantly increases, and is increasingly difficult to handle.Therefore appoint
What refuse landfill, the selection of garbage leachate treatment process will not only meet water quality characteristic and the place of recent percolate
Reason requirement will also take into account and adapt to the leachate quality feature after running life variation.
2nd, biodegradability (biodegradability) is continuously decreased with the increase in landfill age；Containing a large amount of in landfill leachate
Organic pollution, with the time lengthening of landfill, volatile fatty acid gradually decreases, and the proportion of two fulvic acid class substances increases
Add.The variation of this organic constituents, it is meant that the reduction of the biodegradability of the decline of B/C, i.e. percolate.In percolate
BOD5 is stepped up and peaks between 6 months to 2 years or so years generally after garbage loading embeading, and the BOD5 in this stage is mostly with molten
Based on solution property organic matter.
3rd, nutrient proportional imbalance：Ammonia nitrogen concentration in percolate is high, and P elements lack.
The water quality of landfill leachate is considerably complicated, typically contains high-enriched organics, heavy metallic salt, SS and ammonia nitrogen, rubbish
Percolate not only contaminated soil and earth surface water source, can also pollute underground water, for landfill leachate generally using biology
Method processing, but treatment effect is less desirable, and operating cost is relatively high.
Invention content
It is simple in structure the object of the present invention is to provide a kind of landfill leachate zero-discharge treatment system, realize rubbish
Leachate zero-emission, energy conservation and environmental protection reduce cost.
To achieve these goals, a kind of landfill leachate zero-discharge treatment system provided by the invention, including grid collection
Pond, the water outlet of grid collecting-tank are connected to the water inlet of regulating reservoir by pipeline and water pump；The water outlet of regulating reservoir passes through
Pipeline and water pump are connected to the water inlet of hydrolysis acidification pool；The water outlet of hydrolysis acidification pool is connected to A2/O by pipeline and water pump
The water inlet of reactor, the water outlet of A2/O reactors connect the water inlet of ultrafiltration apparatus by pipeline with water pump；Ultrafiltration apparatus
Water outlet the water inlet of positive penetration equipment is connected to by pipeline and water pump；The water outlet of positive penetration equipment is connected by pipeline
To the water inlet of reverse osmosis equipment；The water outlet of reverse osmosis equipment is connected to the water inlet of disinfection pool by pipeline.
Preferably, sludge discharging port is provided in A2/O reactors, sludge discharging port is connected to sludge concentration tank by pipeline, dirty
The row's of being provided with supernatant mouth and row's thickened sludge mouth, row's supernatant mouth are connected to regulating reservoir by pipeline and enter water in mud thickener
Mouthful, row's thickened sludge mouth is connected to device for dehydrating sladge waste.
Preferably, the A2/O reactors include sequentially connected anaerobic reactor, anoxic pond and aerobic tank, anaerobic reaction
The row's of being provided with biogas mouth in device, row's biogas mouth are connected to methane pretreatment apparatus, and the exhaust outlet of methane pretreatment apparatus is connected to
Biogas container.
Preferably, anaerobic reactor is upflow anaerobic sludge blanket reactor.
Preferably, the row's of being equipped with concentrate mouth in positive penetration equipment, row's concentrate mouth are connected to evaporated crystallization device.
Preferably, the evaporated crystallization device includes evaporating and crystallizing tower, and liquid level is provided on evaporating and crystallizing tower lower sides
Interface and thermometer boss are counted, is respectively used to installation liquid level gauge and thermometer.
Preferably, driving liquid return-flow system is also associated between the reverse osmosis equipment and positive penetration equipment.
Preferably, the water outlet of hydrolysis acidification pool is connect with nutrients dosing chamber water inlet, and pass through nutrients dosing chamber,
Pipeline and water pump are connected to the water inlet of A2/O reactors.
Preferably, it is provided with boring aeration pipe in the regulating reservoir.
Preferably, inside the evaporating and crystallizing tower it is 316L stainless steels.
The present invention also provides the methods that the system is used to carry out zero discharge treatment, include the following steps：
Landfill leachate is pumped into grid collecting-tank after collecting, remove large granular impurity；
Treated, and percolate is pumped to regulating reservoir, and homogeneous is obtained in regulating reservoir and is measured, and is exposed in regulating reservoir using perforation
Tracheae stirs, and prevents sludge settling；
Regulating reservoir sets level-one elevator pump and handles sewage lifting to hydrolysis acidification pool；
Sewage is lifted into A2/O reactors through charging pump and is removed organic matter and denitrogenation processing after processing, wherein controlling
Reaction condition is water inlet C:N:P=(350-500):5:1, at 30-35 DEG C, pH value control exists the temperature control in anaerobic reactor
7-7.2；Oxygen concentration is 0.1-0.13mg/L during anoxic treatment, and oxygen concentration is 0.15-0.18mg/L in Aerobic；
Subsequent sewage is admitted to positive penetration equipment and reverse osmosis equipment is handled, the concentrate warp that positive infiltration processing generates
Row's concentrate mouth is sent to evaporated crystallization device, crystallization and evaporation tower operating pressure 0.035MPa, and operation temperature tower top is 103 DEG C, tower
Bottom is 110 DEG C, and tower body internal material uses Stainless steel 316 L, and filler uses BX500 fillers；Crystallization and evaporation tower steam treated knot
Brilliant water content of matter control is below 10%；.
The water for reaching reuse standard by the processing of reverse osmosis membrane equipment enters sterilization pool disinfection, then recycles；
After positive osmotic drive liquid after being diluted in the positive penetration equipment enters reverse osmosis equipment, then concentrated processing,
It returns in positive permeability apparatus and is continuing with.
The sludge that A2/O reactors generate is admitted to sludge concentration tank, and the supernatant that sludge concentration tank is isolated is sent back to tune
Section is handled in pond, and the sludge isolated is sent into device for dehydrating sladge waste and is carried out dehydrating, and the mud cake after dehydration contains
Water rate is 50% hereinafter, being then delivered to external or landfill.
A kind of landfill leachate zero-discharge treatment system provided by the invention, has the advantages that
1st, hydrolysis acidification pool, the anaerobic reactor that the present invention uses, belongs to anaerobic technique.Effectively reduce this system
Energy consumption.
2nd, the present invention uses positive osmosis process, is effectively reduced the energy consumption as advanced treatment unit.
3rd, through actual tests, stable effluent quality of the present invention, various indexs reach《Municipal sewage recycles city to use mixedly
Water water quality》Greening, road in GB/T18920-2002 are poured to spill to be poured with Reuse on Environment and road after the standards such as water and be spilt.
4th, waste water processes of the present invention are simple, easy to operate, cut down sludge quantity significantly, and reduce sewage disposal
Operation cost.
5th, in system 99% reusing sewage, realize the zero-emission of landfill leachate.Salt also recoverable.
6th, production water can be used for the flushing of garbage truck, afforests and is rinsed to road, energy conservation and environmental protection.
Description of the drawings
Fig. 1 is a kind of structure diagram of landfill leachate zero-discharge treatment system provided by the present invention；
Fig. 2 is the structure diagram of evaporating column.
In figure：
1. 5. anoxic pond of grid collecting-tank 2. regulating reservoir, 3. hydrolysis acidification pool, 4. anaerobic reactor, 6. aerobic tank 7.
8. positive 9. reverse osmosis equipment of penetration equipment, 10. disinfection pool 11. of ultrafiltration apparatus driving liquid return-flow system, 12. sludge concentration tank
13. 16. evaporated crystallization device of device for dehydrating sladge waste 14. methane pretreatment apparatus, 15. biogas container, 17. evaporating and crystallizing tower
18. 19. thermometer boss of interface of the level gauge, 20. process gas outlet, 21. condensate liquid refluxing opening, 22. feed inlet 23. boils liquid again
25. 26. vinasse of heating steam port outlet of liquid outlet is boiled in import 24. again
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Please refer to Fig.1-2, a kind of landfill leachate zero-discharge treatment system provided by the invention, including grid collecting-tank 1,
Fine fack is set in collecting-tank water inlet end and forms the grid collecting-tank 1, is removed large granular impurity, is prevented occluding device and influence
Wastewater treatment efficiency.
The water outlet of grid collecting-tank 1 is connected to the water inlet of regulating reservoir 2 by pipeline and water pump；Percolate is pumped into adjusting
Pond, in regulating reservoir obtaining homogeneous measures.It is stirred in pond using boring aeration pipe (not marked in figure), prevents sludge settling.
The water outlet of regulating reservoir 2 is connected to the water inlet of hydrolysis acidification pool 3 by pipeline and water pump；Pre-acidified pond 3 can be with
Macromolecular open loop chain rupture in sewage is become into small molecule, improves the biodegradability of sewage, to be utilized using microorganism, and can be subtracted
Few sludge yield.
The water outlet of hydrolysis acidification pool 3 is connected to the water inlet of A2/O reactors by pipeline and water pump, and A2/O techniques are also
Claim A-A-O techniques, be English Anaerobic-Anoxic-Oxic first letters abbreviation (anaerobic- anoxic- oxic), A2/O
The equipment that reactor is known in the art, including sequentially connected anaerobic reactor 4, anoxic pond 5 and aerobic tank 6.As into one
Step is improved, and hydrolysis acidification pool 3 goes out first to connect nutrients dosing chamber (not marked in figure), can be into field headquarters in nutrients dosing chamber
The adjustment of the dosing of object, water temperature and PH are supported, after the boundary condition for reaching anaerobic organism requirement, it is anti-to be lifted into anaerobism through charging pump
Answer device 4.After sewage removes most of organic matter through anaerobic reactor 4, into A/O ponds (i.e. anoxic pond 5 and aerobic tank 6).A/O
Fully realize the function of organics removal and denitrogenation in pond.Wherein up-flow anaerobic sludge blanket reaction may be used in anaerobic reactor 4
Device (UASB).During work, the operating condition of anaerobic reactor 4 can be：The water inlet of anaerobic reactor 4 C:N:P=(350-500):
5:1, at 30-35 DEG C, pH value is controlled in 7-7.2 the temperature control in anaerobic reactor 4.
What the water outlet (i.e. 6 water outlet of aerobic tank) of A2/O reactors connected ultrafiltration apparatus 7 by pipeline with water pump enters water
Mouthful；Ultrafiltration apparatus 7 for example can be with MBR film process equipment.The water outlet of ultrafiltration apparatus 7 is connected to positive infiltration by pipeline and water pump
The water inlet of equipment 8；The water outlet of positive penetration equipment 8 is connected to the water inlet of reverse osmosis equipment 9 by pipeline；Reverse osmosis equipment
9 water outlet is connected to the water inlet of disinfection pool 10 by pipeline, finally obtains clean water body.Reverse osmosis equipment 9 and just
Driving liquid return-flow system 11 is also associated between penetration equipment 8, realizes and driving liquid is recycled.
As the improvement of first aspect, sludge discharging port is provided in anaerobic reactor 4 and aerobic tank 6, sludge discharging port leads to
Piping is connected to sludge concentration tank 12, and the row's of being provided with supernatant mouth and row's thickened sludge mouth, arrange supernatant in 12 pond of sludge condensation
Liquid mouth is connected to 2 water inlet of regulating reservoir by pipeline, and row's thickened sludge mouth is connected to device for dehydrating sladge waste 13.At concentrated dehydration
Moisture content of the cake after reason is for 50% hereinafter, being then delivered to outward transport or landfill.12 supernatant of sludge concentration tank is back to regulating reservoir
Carry out circular treatment.Filter screen can be set at row's supernatant mouth, to filter out big mud granule, mitigate the pressure purified again
Power.
As the improvement of another further aspect, the row's of being provided with biogas mouth in anaerobic reactor 4, row's biogas mouth is connected to biogas and locates in advance
Device 14 is managed, the exhaust outlet of methane pretreatment apparatus 14 is connected to biogas container 15.Biogas, biogas are generated in anaerobic reactor 4
It with preferable economic value, is recycled after gas-liquid separation and desulfurization, extra biogas incendivity discharges.
The row's of being equipped with concentrate mouth in positive penetration equipment 8, row's concentrate mouth are connected to evaporated crystallization device 16.Positive osmosis concentration
Liquid is handled by evaporated crystallization device, and the solid after crystallization carries out safe disposal (collecting landfill), and the condensation water collection of evaporation returns
With again connecting to positive penetration equipment and handled, more economized on resources, and safety and environmental protection.Please also refer to Fig. 2, the steaming
It sends out crystallization apparatus 16 and includes evaporating and crystallizing tower 17, interface of the level gauge 18 and thermometer are provided on 17 lower sides of evaporating and crystallizing tower
Interface 19 is respectively used to installation liquid level gauge and thermometer.Liquid level gauge is installed and thermometer can be to the liquid in evaporating and crystallizing tower 17
Position and temperature are monitored in real time, and staff is facilitated to be adjusted according to actual treatment situation to job scheduling.Evaporative crystallization
316L stainless steels may be used inside tower 17, it is solid reliable, it is not susceptible to corrosion.Inner-tower filling material uses BX500 fillers, rule
Whole filler arrangement.During work, the running parameter of evaporating and crystallizing tower 17 could be provided as：Operating pressure 0.035MPa, operation
103 DEG C of temperature tower top, 110 DEG C of bottom of towe.In addition, evaporating and crystallizing tower 17 be also disposed with from top to bottom process gas outlet 20, it is cold
Lime set refluxing opening 21, boils liquid import 23 at feed inlet 22 again, is provided in tower bottom and boils liquid outlet 24,25 and of heating steam port again
Vinasse outlet 26.
A kind of landfill leachate zero-discharge treatment system provided by the present invention is described in detail above.Herein
It applies specific case to be expounded the principle of the present invention and embodiment, the explanation of above example is only intended to help
Understand the core concept of the present invention.It should be pointed out that for those skilled in the art, the present invention is not being departed from
Under the premise of principle, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into right of the present invention
It is required that protection domain in.
Claims (6)
- A kind of 1. method handled using landfill leachate zero-discharge treatment system landfill leachate, which is characterized in that The landfill leachate zero-discharge treatment system includes grid collecting-tank, and the water outlet of grid collecting-tank is connected by pipeline and water pump It is connected to the water inlet of regulating reservoir；The water outlet of regulating reservoir is connected to the water inlet of hydrolysis acidification pool by pipeline and water pump；Hydrolysis The water outlet of acidification pool is connected to the water inlet of A2/O reactors by pipeline and water pump, and the water outlet of A2/O reactors passes through pipe Road connects the water inlet of ultrafiltration apparatus with water pump；The water outlet of ultrafiltration apparatus is connected to positive penetration equipment by pipeline and water pump Water inlet；The water outlet of positive penetration equipment is connected to the water inlet of reverse osmosis equipment by pipeline；The water outlet of reverse osmosis equipment The water inlet of disinfection pool is connected to by pipeline；The A2/O reactors include sequentially connected anaerobic reactor, anoxic pond and aerobic tank, are provided in anaerobic reactor Biogas mouth is arranged, row's biogas mouth is connected to methane pretreatment apparatus, and the exhaust outlet of methane pretreatment apparatus is connected to biogas container；It is provided with sludge discharging port in A2/O reactors, sludge discharging port is connected to sludge concentration tank by pipeline, in sludge concentration tank The row's of being provided with supernatant mouth and row's thickened sludge mouth, row's supernatant mouth are connected to regulating reservoir water inlet by pipeline, and row's concentration is dirty Mud mouth is connected to device for dehydrating sladge waste；The row's of being equipped with concentrate mouth in positive penetration equipment, row's concentrate mouth are connected to evaporated crystallization device；The reverse osmosis equipment and Driving liquid return-flow system is also associated between positive penetration equipment；Include the following steps：Landfill leachate is pumped into grid collecting-tank after collecting, remove large granular impurity；Treated, and percolate is pumped to regulating reservoir, and homogeneous is obtained in regulating reservoir and is measured, and boring aeration pipe is used in regulating reservoir Stirring, prevents sludge settling；Regulating reservoir sets level-one elevator pump and handles sewage lifting to hydrolysis acidification pool；Sewage is lifted into A2/O reactors through charging pump and is removed organic matter and denitrogenation processing after processing, wherein control reaction Condition is water inlet C:N:P=(350-500):5:1, at 30-35 DEG C, pH value is controlled in 7- the temperature control in anaerobic reactor 7.2；Oxygen concentration is 0.1-0.13mg/L during anoxic treatment, and oxygen concentration is 0.15-0.18mg/L in Aerobic；Subsequent sewage is admitted to positive penetration equipment and reverse osmosis equipment is handled, and the concentrate that positive infiltration processing generates is dense through arranging Contracting liquid mouth is sent to evaporated crystallization device, crystallization and evaporation tower operating pressure 0.035MPa, and operation temperature tower top is 103 DEG C, and bottom of towe is 110 DEG C, tower body internal material uses Stainless steel 316 L, and filler uses BX500 fillers；Crystallization and evaporation tower steams treated crystal Moisture control is below 10%；The water for reaching reuse standard by the processing of reverse osmosis membrane equipment enters sterilization pool disinfection, then recycles；After positive osmotic drive liquid after being diluted in the positive penetration equipment enters reverse osmosis equipment, then concentrated processing, return to It is continuing in positive permeability apparatus.
- 2. according to the method described in claim 1, it is characterized in that, anaerobic reactor is upflow anaerobic sludge blanket reactor.
- 3. according to the method described in claim 1, it is characterized in that, the evaporated crystallization device includes evaporating and crystallizing tower, evaporation Interface of the level gauge and thermometer boss are provided on crystallizing tower lower sides, is respectively used to installation liquid level gauge and thermometer；It is described It is 316L stainless steels inside evaporating and crystallizing tower.
- 4. according to the method described in claim 1, it is characterized in that, the water outlet of hydrolysis acidification pool enters water with nutrients dosing chamber Mouth connection, and pass through the water inlet that nutrients dosing chamber, pipeline and water pump are connected to A2/O reactors.
- 5. according to the method described in claim 1, it is characterized in that, it is provided with boring aeration pipe in the regulating reservoir.
- 6. according to the method described in claim 1, it is characterized in that, the sludge that A2/O reactors generate is admitted to sludge condensation Pond, the supernatant that sludge concentration tank is isolated, which is sent back in regulating reservoir, to be handled, and the sludge isolated is sent into sludge dewatering and is set Standby to be carried out dehydrating, the moisture content of the cake after dehydration is 50% hereinafter, being then delivered to external or landfill.
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| CN111592098B (en) * | 2020-05-27 | 2021-04-27 | 山东膜源水净化科技股份有限公司 | MBR membrane biological reaction device |
| CN113480088A (en) * | 2021-06-17 | 2021-10-08 | 中国恩菲工程技术有限公司 | Leachate treatment system |
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