CN108002646A - A kind of system and method for landfill leachate zero-emission - Google Patents
A kind of system and method for landfill leachate zero-emission Download PDFInfo
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- CN108002646A CN108002646A CN201711240058.3A CN201711240058A CN108002646A CN 108002646 A CN108002646 A CN 108002646A CN 201711240058 A CN201711240058 A CN 201711240058A CN 108002646 A CN108002646 A CN 108002646A
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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
- C02F1/44—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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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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
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of system and method for landfill leachate zero-emission, belong to field of waste water treatment, the system is disposed with setting pot according to the processing sequence of landfill leachate zero-emission, regulating reservoir, UASB anaerobic units, MBR film biological units, two-stage RO reverse osmosis units and clean solution tank, setting pot is connected with incineration leachate, for carrying out separation of solid and liquid to landfill leachate, regulating reservoir is used to carry out the equal quantification treatment of homogeneous to the waste liquid isolated, UASB anaerobic units are used for the waste liquid after quantifying to homogeneous and carry out anaerobic reaction, MBR films biological unit is used to carry out membrane biological reaction to the waste liquid after anaerobic reaction, clear liquid after the filtering of two-stage RO reverse osmosis units, which enters in clean solution tank, to be stored to reuse again.The present invention has producing water ratio high, and concentration output of fluid is small, and effluent index is stringent, and from the influence of storage water body, mass energy, environmentally friendly risk that is stable and reducing percolate processing are saved in clear liquid reuse.
Description
Technical field
The invention belongs to technical field of waste water processing, is related to a kind of system and method for landfill leachate zero-emission.
Background technology
Water crisis caused by shortage of water resources and water environment pollution is always restrict China's economy and social development important
Factor.The deterioration and rapid development of economy of quality of water environment, there is an urgent need to be adapted to the sewage recycling technology of era development, with
Alleviate shortage of water resources problem.Therefore, various new, modified form efficient wastewater treating process and technology are come into being.At present
The most of discharge technology that uses of garbage percolation liquid treating system, i.e. landfill leachate after treatment, handle it is up to standard after
Water is arranged mouth by standard and is discharged；But the discharge standard water quality index requirement that percolate processing at this stage uses is less than
Recycle water standard (does not reach recycle water standard) using the treatment process of discharge standard, and directly discharge is influenced by storage water body
(must have the storage water body that can receive percolate clear liquid discharging i.e. around percolation liquid treating system), the choosing to percolate treating stations
Select and have a great impact；And percolate clear liquid directly discharges the waste that can cause the energy, especially for incineration plant, (incineration plant is used
Water needs to charge).Therefore, it is necessary to a kind of new landfill leachate zero-emission industry is designed, to solve the prior art
The producing water ratio of middle lattice is low, and effluent index requirement is low, and concentration output of fluid is big, and addressing is limited by storage water body, and clear liquid directly discharge is made
Into substantial amounts of energy waste problem.
The content of the invention
In view of this, the technical problems to be solved by the invention are to provide system and the side of a kind of landfill leachate zero-emission
Method, can save energy consumption, reduce the environmentally friendly risk of percolate processing, there is provided the stability of permeated liquid system operation.
To reach above-mentioned purpose, the present invention provides following technical solution：
The present invention provides a kind of system of landfill leachate zero-emission, and the system is according to the place of landfill leachate zero-emission
Make sequence in order and be disposed with setting pot, regulating reservoir, UASB anaerobic units, MBR films biological unit, two-stage RO reverse osmosis units and clear
Liquid pool, the setting pot are connected with incineration leachate, and for carrying out separation of solid and liquid to landfill leachate, the regulating reservoir is used for
The equal quantification treatment of homogeneous is carried out to the waste liquid isolated, the UASB anaerobic units are used for the waste liquid after quantifying to homogeneous and carry out
Anaerobic reaction, the MBR films biological unit are used to carry out membrane biological reaction, the two-stage RO reverse osmosis to the waste liquid after anaerobic reaction
Clear liquid after saturating unit filtering, which enters in clean solution tank, to be stored to reuse again.
Further, the system also includes the sludge concentration tank and chamber-type press filter for being sequentially connected setting, the sludge are dense
Contracting pond is connected with MBR film biological units, for carrying out concentration, the railway carriage or compartment to the sludge after anaerobic reaction and membrane biological reaction
Formula filter press is used to carrying out the sludge after concentration dehydration and form dewatered sludge to send to incinerator, in sludge condensation and dehydration
The soiling solution of middle generation returns to regulating reservoir to participate in anaerobic reaction again.
Further, the MBR films biological unit is made of denitrification pond, nitrification tank and external pipe type hyperfiltration membrane assembly, institute
The nitrification liquid for stating nitrification tank is passed back into denitrification pond, and the sludge reflux of the hyperfiltration membrane assembly discharge enters in denitrification pond.
Further, the system also includes the dope processing unit and dope for being sequentially connected setting to return spray pond, the dope
Processing unit is connected with two-stage RO reverse osmosis units, is formed after dope for carrying out concentration to the turbid filtered out and is returned into dope
To reuse again, the dope returns spray pond and is used to the dope of its memory storage time being sprayed onto incinerator for storage in spray pond,
The secondary turbid produced in dope processing unit returns to two-stage RO reverse osmosis units to participate in filtration treatment again.
Further, the two-stage RO reverse osmosis units include level-one STRO components and two level RO components, the level-one STRO
Component is connected respectively with two level RO components and dope processing unit, the secondary clear liquid that the two level RO components produce in filter process
Level-one STRO components are returned to participate in the processing of level-one STRO component filters again.
Further, the two level RO components use STRO, DTRO or rolling RO.
Further, the dope processing unit softens component, UF components, high pressure STRO groups by the dope for being sequentially connected setting
Part forms.
The present invention also provides a kind of method of landfill leachate zero-emission, specifically comprise the following steps：First, will collect out
Incineration leachate is incorporated into setting pot and is precipitated；Then, the waste liquid isolated is incorporated into regulating reservoir and carries out homogeneous
Equal quantification treatment；Then, the waste liquid after being quantified to homogeneous using UASB anaerobic units carries out anaerobic reaction；Then, MBR is utilized
Film biological unit carries out membrane biological reaction to the waste liquid after anaerobic reaction；Finally, it is clear after the filtering of two-stage RO reverse osmosis units
Liquid enters storage in clean solution tank, and, to reuse again, the sludge after anaerobic reaction and membrane biological reaction sequentially enters sludge
Concentration basin and chamber-type press filter are concentrated, dehydration is sent to incinerator with obtaining dewatered sludge, through the reverse osmosis lists of two-stage RO
Turbid night after member filtering is condensed into dope through dope processing unit again and is sprayed onto incinerator into storage in dope time spray pond to return,
The not good liquor that is produced in concentration, dehydration through sludge concentration tank and chamber-type press filter is returned in regulating reservoir to participate in detesting again
Oxygen reacts.
The beneficial effects of the invention are as follows：
1st, the present invention uses " pretreatment+anaerobic UASB+external MBR+ two-stage RO+ dopes advanced treatment system ", by rubbish
Rubbish percolate handle to《Urban sewage reutilization-industry water standard》(GB19923-2005) open type circulating cooling in
Water supplements water quality standard, and clear liquid up to standard returns incineration plant recirculating cooling water system, and concentrate passes through dope advanced treatment system minimizing
After processing, remaining a small amount of concentrate returns the burning processing of spray incineration plant incinerator, can both improve the production water of percolation liquid treating system
Rate, and can really realize the zero-emission target of percolation liquid treating system.
2nd, the technique " pretreatment+anaerobic UASB+external MBR+ two-stage RO+ dope advanced treatings system used in the present invention
System ", it is possible to achieve the recycling (reducing water withdrawal outside incineration plant, save substantial amounts of energy cost) of clear liquid；Using this technique,
The addressing of percolate treating stations will no longer be influenced by storage water body；Whole permeated liquid system, will be effective there is no wastewater disposition
Reduction possibility that surrounding enviroment are polluted.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can by following specification realizing and
Obtain.
Brief description of the drawings
In order to make the object, technical solutions and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, wherein：
Fig. 1 is the process flow chart of the present invention.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that diagram provided in following embodiments is only to show
Meaning mode illustrates the basic conception of the present invention, and in the case where there is no conflict, the feature in following embodiments and embodiment can phase
Mutually combination.
Embodiment is substantially as shown in drawings：The present embodiment provides a kind of system of landfill leachate zero-emission, the system
Setting pot 1, regulating reservoir 2, UASB anaerobic units 3, the life of MBR films are disposed with according to the processing sequence of landfill leachate zero-emission
Thing unit 4, two-stage RO reverse osmosis units 5 and clean solution tank 6, the setting pot 1 is connected with incineration leachate, for being oozed to rubbish
Filtrate carries out separation of solid and liquid, and the regulating reservoir 2 is used to carry out the equal quantification treatment of homogeneous, the UASB anaerobism to the waste liquid isolated
Unit 3 is used for the waste liquid after quantifying to homogeneous and carries out anaerobic reaction, after the MBR films biological unit 4 is used for anaerobic reaction
Waste liquid carry out membrane biological reaction, the clear liquid after the two-stage RO reverse osmosis units 5 filter enters in clean solution tank 6 storage so as to again
Secondary recycling.
Using the above scheme, pretreatment (setting pot 1+ regulating reservoirs 2) main function is that removal percolate kind bulky grain is miscellaneous
Matter and sand grains, the equal quantification treatment of homogeneous is carried out to percolate；Carried out by pretreated percolate into UASB anaerobic units 3
Processing, removes in percolate more than 80% CODcr and BOD5, condition is provided for subsequent biochemical processing；After Anaerobic Treatment
Percolate enter MBR films biological unit 4, which mainly removes the NH3-N and TN of percolate kind, also can further go
Except the CODcr of a part；Percolate after biochemical treatment enters core process section " two-stage RO (the level-one STRO+ of this technique
Two level rolling RO) ", the water outlet of MBR system will be further processed in this process section, to NH3The removal rate of-N and TN can
Up to more than 85%, to CODcr and BOD5Removal rate up to more than 95% so that ensureing the effluent clear solution of this technique can reach
Recycle water standard, the dope of two level RO also will be returned to level-one STRO systems and handled, and so will further lift percolate system
The producing water ratio of system, reduces dope amount；The concentrate that two-stage RO is produced enters dope advanced treatment system and carries out minimizing processing, this
The dope minimizing device producing water ratio used in technique is up to 50-60%, and remaining small part dope returns spray incinerator and fired
Burning processing, the clear liquid that dope processing unit produces return the entrance of two-stage RO, qualified discharge after being handled by two-stage RO.
System in the present embodiment further includes the sludge concentration tank 7 and chamber-type press filter 8 for being sequentially connected setting, the sludge
Concentration basin 7 is connected with MBR films biological unit 4, for carrying out concentration, institute to the sludge after anaerobic reaction and membrane biological reaction
State chamber-type press filter 8 to be used to carrying out the sludge after concentration dehydration and form dewatered sludge to send to incinerator, in sludge condensation and de-
The soiling solution produced during water returns to regulating reservoir 2 to participate in anaerobic reaction again.
MBR films biological unit 4 in the present embodiment is by denitrification pond 41, nitrification tank 42 and external pipe type hyperfiltration membrane assembly 43
Composition, the nitrification liquid of the nitrification tank 42 is passed back into denitrification pond 41, with cost-effective；What the hyperfiltration membrane assembly 43 was discharged
Sludge reflux enters in denitrification pond 41, so that the biochemical reaction of sludge is more abundant.Denitrification pond is mainly removed in waste water
Ammonia nitrogen, while other polluters in degrading waste water.Denitrifying bacteria under anoxic conditions, reduces nitrate, discharges point
Sub- state nitrogen (N2) or nitrous oxide (N2O process).The nitrification of nitrification tank is primarily referred to as the well foster section of biochemical processing process section,
Process by ammonium oxidation into cultured water or nitrate nitrogen.Level-one nitrification+denitrification process facility can be employed in this technique.
The concentration of ammonia nitrogen is reduced to greatest extent in biochemical section, while reduces the concentration of other pollutants.And other in waste water are dirty
Dye material can effectively be degraded during denitrification+nitrification.
System in the present embodiment further includes the dope processing unit 9 for being sequentially connected setting and dope returns spray pond 10, described
Dope processing unit 9 is connected with two-stage RO reverse osmosis units 5, for the turbid filtered out after concentration forms dope enter
Dope returns storage in spray pond 10, and, to reuse again, the dope returns spray pond 10 and is used to the dope of its memory storage time being sprayed onto
Incinerator, the secondary turbid produced in dope processing unit return to two-stage RO reverse osmosis units 4 to participate in filtration treatment again.
Two-stage RO reverse osmosis units 5 in the present embodiment include level-one STRO components 51 and two level RO components 52, and described one
Level STRO components 51 are connected respectively with two level RO components 52 and dope processing unit 9, and the two level RO components 52 are in filter process
The secondary clear liquid of middle generation returns to level-one STRO components 51 to participate in 51 filtration treatment of level-one STRO components again.
Two level RO components 52 in the present embodiment use STRO, DTRO or rolling RO.
Dope processing unit in the present embodiment softens component (not shown), UF components by the dope for being sequentially connected setting
(not shown), high pressure STRO components (not shown) composition.
UASB anaerobic units 3 in the present embodiment are by sludge reaction area, gas-liquid-solid three-phase separator and gas chamber three parts group
Into.Specifically, retaining a large amount of anaerobic sludges in the reaction zone of bottom, the sludge with good sedimentation function and cohesion performance exists
Sludge blanket is formed at lower part.Sewage to be processed is flowed into from anaerobic mud bed bottom and is mixed with sludge in sludge blanket, dirty
It, is converted into biogas by the organic matter in microorganism decomposition sewage in mud.Biogas is constantly released in the form of micro-bubble, small
Bubble constantly merges in uphill process, gradually forms larger bubble, on Sludge Bed top since the agitation of biogas forms one
The leaner sludge of a sludge concentration and water ascend into three phase separator together, and biogas encounters the reflecting plate of separator lower part
When, the surrounding of reflecting plate is folded to, water layer is then passed through into air inlet chamber, concentrates on gas chamber biogas, exported with conduit, solid-liquid mixed liquor
By being reflected into the settling zone of three phase separator, the sludge in sewage flocculates, and particle gradually increases, and in gravity
Lower sedimentation.The sludge being precipitated on skew wall is slid back in anaerobic reaction area along skew wall, makes the substantial amounts of sludge of accumulation in reaction zone, with
Processing water outlet after sludge separation is overflowed from settling zone downflow weir top, is then discharged out Sludge Bed.
The diaphragm of two-stage RO components 5 in the present embodiment is using industrial anti-pollution reverse osmosis membrane.Landfill leachate etc. pollutes
Thing load is high, and water, change of water quality are big, and complicated component, intractability is big, and investment and operating cost are high.Using two-stage RO techniques
Handle, the organic and inorganic pollution of solubilised state in its reverse osmosis technology energy effectively catching landfill leachate, it is possible to achieve diafiltration
The qualified discharge of liquid processing.
The specific method for illustrating lower landfill leachate zero-emission of the present invention below, includes the following steps：First, will collect
Go out incineration leachate and be incorporated into setting pot 1 to be precipitated；Then, the waste liquid isolated is incorporated into regulating reservoir 2 and carried out
The equal quantification treatment of homogeneous；Then, the waste liquid after being quantified to homogeneous using UASB anaerobic units 3 carries out anaerobic reaction；Then, it is sharp
Membrane biological reaction is carried out to the waste liquid after anaerobic reaction with MBR films biological unit 4；Finally, filtered through two-stage RO reverse osmosis units 5
Clear liquid afterwards, which enters in clean solution tank 6, to be stored to reuse again, and the sludge after anaerobic reaction and membrane biological reaction is successively
Concentrated into sludge concentration tank 7 and chamber-type press filter 8, dehydration is sent to incinerator with obtaining dewatered sludge, through two-stage
RO reverse osmosis units 5 filter after turbid night again through dope processing unit 9 be condensed into dope into dope return spray pond 10 in storage with
Just return and be sprayed onto incinerator, the not good liquor produced in concentration, dehydration through sludge concentration tank 7 and chamber-type press filter 8, which returns, to be adjusted
To participate in anaerobic reaction again in pond 2.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, can be to the skill of the present invention
Art scheme technical scheme is modified or replaced equivalently, without departing from the objective and scope of the technical program, it should all cover in the present invention
Right among.
Claims (8)
1. a kind of system of landfill leachate zero-emission, it is characterised in that the system is according to the place of landfill leachate zero-emission
Making sequence in order, to be disposed with setting pot (1), regulating reservoir (2), UASB anaerobic units (3), MBR films biological unit (4), two-stage RO anti-
Permeation unit (5) and clean solution tank (6), the setting pot are connected with incineration leachate, for carrying out solid-liquid to landfill leachate
Separation, the regulating reservoir are used to carry out the equal quantification treatment of homogeneous to the waste liquid isolated, and the UASB anaerobic units are used for equal
Waste liquid after matter quantifies carries out anaerobic reaction, and the MBR films biological unit is used to carry out film life to the waste liquid after anaerobic reaction
Thing reacts, and the clear liquid after the two-stage RO reverse osmosis units filtering, which enters in clean solution tank, to be stored to reuse again.
2. the system of landfill leachate zero-emission according to claim 1, it is characterised in that the system also includes successively
The sludge concentration tank (7) and chamber-type press filter (8) set is connected, the sludge concentration tank is connected with MBR film biological units, is used for
To after anaerobic reaction and membrane biological reaction sludge carry out concentration, the chamber-type press filter be used for the sludge after concentration into
Row dehydration forms dewatered sludge and send to incinerator, and the soiling solution produced in sludge condensation and dehydration returns to regulating reservoir so as to again
Secondary participation anaerobic reaction.
3. the system of landfill leachate zero-emission according to claim 1, it is characterised in that the MBR films biological unit
It is made of denitrification pond (41), nitrification tank (42) and external pipe type hyperfiltration membrane assembly (43), the nitrification liquid reflux of the nitrification tank
Enter in denitrification pond, the sludge reflux of the hyperfiltration membrane assembly discharge enters in denitrification pond.
4. the system of landfill leachate zero-emission according to claim 1, it is characterised in that the system also includes successively
Connect the dope processing unit (9) set and dope returns spray pond (10), the dope processing unit and two-stage RO reverse osmosis units
Connection, forms after dope for carrying out concentration to the turbid filtered out and enters dope and return in spray pond storage to repeat profit again
With the dope returns spray pond and is used to the dope of its memory storage time being sprayed onto incinerator, and what is produced in dope processing unit is secondary turbid
Liquid returns to two-stage RO reverse osmosis units to participate in filtration treatment again.
5. the system of landfill leachate zero-emission according to claim 4, it is characterised in that the reverse osmosis lists of two-stage RO
Member includes level-one STRO components (51) and two level RO components (52), and the level-one STRO components are handled with two level RO components and dope
Unit connects respectively, and the secondary clear liquid that the two level RO components produce in filter process returns to level-one STRO components to join again
With the processing of level-one STRO component filters.
6. the system of landfill leachate zero-emission according to claim 5, it is characterised in that the two level RO components use
STRO, DTRO or rolling RO.
7. the system of landfill leachate zero-emission according to claim 4, it is characterised in that the dope processing unit by
It is sequentially connected dope softening component, UF components, the high pressure STRO components composition of setting.
8. the method for carrying out zero-emission using the system of claim 1-7 any one of them landfill leachate zero-emissions, it is special
Sign is, includes the following steps：First, incineration leachate will be collected out it is incorporated into setting pot and is precipitated；Then, will divide
The waste liquid separated out is incorporated into the progress equal quantification treatment of homogeneous in regulating reservoir；Then, homogeneous is quantified using UASB anaerobic units
Waste liquid afterwards carries out anaerobic reaction；Then, membrane biological reaction is carried out to the waste liquid after anaerobic reaction using MBR films biological unit；
Finally, it is anti-through anaerobism to reuse again to enter storage in clean solution tank for the clear liquid after the filtering of two-stage RO reverse osmosis units
Should and membrane biological reaction after sludge sequentially enter sludge concentration tank and chamber-type press filter is concentrated, dehydration to be to be taken off
Sewage sludge is sent to incinerator, and the turbid night after the filtering of two-stage RO reverse osmosis units is condensed into dope through dope processing unit again and enters
Dope returns storage in spray pond and is sprayed onto incinerator to return, and is produced in concentration, dehydration through sludge concentration tank and chamber-type press filter
Raw not good liquor is returned in regulating reservoir to participate in anaerobic reaction again.
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| CN109205900A (en) * | 2018-08-27 | 2019-01-15 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse-burning plant percolation liquid treating system |
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| CN110294573A (en) * | 2019-07-10 | 2019-10-01 | 哈尔滨锅炉厂有限责任公司 | It is a kind of to utilize UASB anaerobic reactor, MBR, ultrafiltration and reverse osmosis treatment landfill leachate system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205900A (en) * | 2018-08-27 | 2019-01-15 | 江苏天楹环保能源成套设备有限公司 | A kind of refuse-burning plant percolation liquid treating system |
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| CN110294565A (en) * | 2019-04-15 | 2019-10-01 | 中山市天乙能源有限公司 | A kind of percolate MBR treatment process of garbage incinerating power plant |
| CN110294573A (en) * | 2019-07-10 | 2019-10-01 | 哈尔滨锅炉厂有限责任公司 | It is a kind of to utilize UASB anaerobic reactor, MBR, ultrafiltration and reverse osmosis treatment landfill leachate system |
| CN110454802A (en) * | 2019-09-05 | 2019-11-15 | 成都市兴蓉再生能源有限公司 | The concentrate for reducing nitrous oxides concentration in furnace enters furnace and returns spray system and return spray method |
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