CN207608434U - A kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device - Google Patents
A kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device Download PDFInfo
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- CN207608434U CN207608434U CN201721294702.0U CN201721294702U CN207608434U CN 207608434 U CN207608434 U CN 207608434U CN 201721294702 U CN201721294702 U CN 201721294702U CN 207608434 U CN207608434 U CN 207608434U
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Abstract
The utility model belongs to refuse leachate treatment technology development and application field, a kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device, raw water box is connected by delivery pump with two electric dialyzator fresh-water tanks, electric dialyzator concentrated water case injects a certain amount of tap water, electric dialyzator concentrated water case and two electric dialyzator fresh-water tank outlets are connected with electrodialyser inlet, electrodialyser outlet is connected with electric dialyzator fresh-water tank and electric dialyzator concentrated water water producing tank respectively, nanofiltration membrane component is connected with electric dialyzator fresh-water tank, the water outlet of nanofiltration membrane component is connected with nanofiltration fresh water water producing tank, the outlet of nanofiltration membrane component concentrated water is connected with nanofiltration concentrated water water producing tank, reverse osmosis membrane assembly is connected with nanofiltration fresh water water producing tank, the outlet of reverse osmosis membrane assembly concentrated water is connected with raw water box, reverse osmosis membrane assembly water outlet is connected with reverse osmosis produced water tank.The utility model originally effectively reduces technique construction cost and operating cost, and operation is easy to operate.
Description
Technical field
The utility model belongs to refuse leachate treatment technology development and application field, and in particular to a kind of for by anti-
Landfill leachate concentration liquid caused by the embrane methods treatment technology such as permeable membrane, NF membrane carries out the processing equipment of advanced treating.
Background technology
Landfill leachate refer to rubbish during stacking and landfill since the physics such as be compacted, ferment, biology, chemistry are made
With, at the same generated under precipitation and the seepage effect of other external waters containing organic and inorganic constituents liquid.
In order to reduce influence of the landfill leachate to environment, currently, China's most cities are burnt with sanitary landfills and rubbish
The major way as garbage disposal is burnt, in one period from now on, sanitary landfills processing and incineration treatment of garbage will be domestic
The basic mode of urban garbage disposal.As most common waste disposal method, garbage loading embeading process and sanitary fill
The a large amount of landfill leachates generated in the process, there is many pollution problems, if do not dealt carefully with, to the water body and soil of surrounding
Cause seriously pollution and significant damage.
The secondary pollution that landfill leachate is generated as garbage processing procedure, composition is complicated, containing organic matter, ammonia nitrogen,
Heavy metal, coloration, salt content are high, the imbalance of microbial nutrition element ratio, biochemical poor performance；It is aqueous by rubbish composition, rubbish
The factors such as rate, garbage loading embeading time, precipitation leakage amount influence, and greatly, intractability is high for variation water quality range and water variation.
The scheme for concentrating liquid advanced treating to landfill leachate at present mainly has evaporative crystallization method, advanced oxidation monotechnics
And Electrocatalytic Oxidation.Evaporative crystallization method be the pollutant in water body is cured, but to equipment requirement height, operating cost
Height, operational administrative are complicated.Advanced oxidation monotechnics handles concentrate, and the method processing cost is high, effluent index is difficult to reach row
Put standard and fluctuation of service.Electrocatalytic Oxidation carries out oxidative degradation to concentrate organic matter, and the method is to the nothing in concentrate
Machine salt, especially calcium ion can not effectively remove, and permanent operation be easy to cause the device structures problem such as electrode plate.
There are a kind of process using " electrodialysis+reverse osmosis ", such as Chinese patent in the prior art
CN201320664573 discloses a kind of processing system of garbage burning factory percolation liquid membrane process concentrated liquid, using embrane method concentration side
Formula carries out advanced treating to landfill leachate, in the structure of the program, it is necessary first to preliminary treatment is carried out to raw water, need by
Cumbersome concentrate collecting tank 1, reaction chamber 2, tube microfiltration membrane device 3 are tentatively filtered, need to expend larger material at
This and time cost, the micro-filtration permeate in micro-filtration water producing tank carry out electrodialysis desalination, electrodialysis fresh water by electrodialysis plant
Through reverse osmosis membrane, reverse osmosis membrane carries out reverse osmosis concentration processing to electrodialysis fresh water, and the scenario-frame in the prior art is complicated,
It needs to be pressurized during reverse-osmosis treated, whole system design cost is high, is not easy mass production and popularization.Garbage filter simultaneously
Liquid is a kind of water quality that high COD is with high salt, although in the fresh water after electrodialysis desalination salinity decrease can enter it is reverse osmosis, it is electric
For dialyzer to the COD of landfill leachate there is no removal ability, the COD in fresh water has the service life of reverse osmosis membrane and flux
Very big influence.
Invention content
For this reason, it may be necessary to a kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device be provided, using " electrodialysis+receive
Filter+reverse osmosis " structure design can reach the concentrate decrement advanced treating effect of effective low operation energy consumption, while the knot
Structure design can detach COD and salt, the nanofiltration concentrated water of high COD be contained while protecting reverse osmosis membrane and containing electricity with high salt
Dialyzer concentrated water is relatively beneficial to subsequent biochemical and curing process.
To achieve the above object, the utility model provides a kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treating and sets
It is standby, including raw water box, delivery pump, homogeneous ion-exchange membrane electrodialysis plant, nanofiltration device and low pressure reverse osmosis device, it is described equal
Phase ion-exchange membrane electrodialysis device includes two electric dialyzator fresh-water tanks, electric dialyzator concentrated water case, electric dialyzator and electrodialysis
Device concentrated water water producing tank, the raw water box are connected by delivery pump with two electric dialyzator fresh water tank inlets, and the electric dialyzator is dense
The outlet of water tank and electric dialyzator fresh-water tank is connected with electrodialyser inlet, electrodialyser outlet respectively with electric dialyzator fresh-water tank
It is connected with electric dialyzator concentrated water case, the nanofiltration device includes nanofiltration membrane component, nanofiltration concentrated water water producing tank and nanofiltration fresh water production water
Case, the nanofiltration membrane component and two electric dialyzator fresh-water tanks are connected, and the nanofiltration membrane component concentrated water outlet is produced with nanofiltration concentrated water
Water tank is connected, and the nanofiltration membrane component water outlet is connected with nanofiltration fresh water water producing tank, and the low pressure reverse osmosis device includes anti-
Permeable membrane element and reverse osmosis produced water tank, the reverse osmosis membrane assembly are connected with nanofiltration fresh water water producing tank, the reverse osmosis membrane group
The outlet of part concentrated water is connected with raw water box, and the reverse osmosis membrane assembly water outlet is connected with reverse osmosis produced water tank.
Further, it is connected between two electric dialyzator fresh-water tanks, electric dialyzator concentrated water water producing tank and electric dialyzator concentrated water
Case is connected.
Further, overflow pipe is provided at 2/3rds of the height of the electric dialyzator concentrated water water producing tank, concentrated water is logical
Overflow pipe overflow is crossed into electric dialyzator concentrated water water tank.
Further, the nanofiltration membrane component includes NF membrane core, putamina and high-pressure pump, and the NF membrane core is arranged in film
In shell.The nanofiltration membrane component is connected with two electric dialyzator fresh-water tanks.In the outlet of electric dialyzator fresh-water tank, that is, NF membrane group
The entrance of part is equipped with online conductivity meter, starts NF membrane when the conductivity of electric dialyzator fresh water water producing tank reaches desired value
Component, nanofiltration membrane component bring into operation, and the concentrated water of nanofiltration drains into nanofiltration concentrated water water producing tank, and the fresh water of nanofiltration membrane component is discharged into fresh water
Aquatic products case is produced, while nanofiltration fresh water water producing tank is connected with reverse osmosis module.
Further, the concentrated water pipeline of the nanofiltration concentrated water water producing tank is connected with raw water box, the nanofiltration membrane component it is light
Aquatic products water tank is equipped with liquid level gauge.The liquid level of the fresh water water production tank of nanofiltration membrane component reaches preset height and starts reverse osmosis membrane
Component.
Further, the electric dialyzator concentrated water case and electric dialyzator fresh-water tank are equipped with online conductivity meter.
It is different from the prior art, above-mentioned technical proposal has the advantages that：
The utility model uses electrodialysis, nanofiltration device and low pressure reverse osmosis coupling device, and in electric dialyzator, treated
Fresh water is handled by nanofiltration device, can effectively realize the separation of inorganic salts and COD and concentrate in landfill leachate concentration liquid
Further decrement, solve the problems, such as that landfill leachate concentration liquid measure big, inorganic salts and COD are constantly accumulated in system, then will
Nanofiltration device fresh water is through low pressure reverse osmosis device coupling processing, and effluent quality meets corresponding industry water reuse discharge and discharge is wanted
It asks, greatly improves the efficiency of landfill leachate treatment.
The utility model has the advantages of simple structure, and raw water box directly enters electric dialyzator fresh-water tank through delivery pump, and electric dialyzator is dense
Water tank injects a certain amount of tap water, then enters electrodialysis after electric dialyzator fresh-water tank and electric dialyzator concentrated water case respectively again
Device, the concentrated water water producing tank and fresh water water producing tank of electric dialyzator also connect with electric dialyzator concentrated water case and electric dialyzator fresh-water tank respectively
It connects, facilitates mass production without cumbersome equipment, the design costs of effective product such as cumbersome ultrafiltration apparatus early period.
Fresh water in electric dialyzator fresh water water producing tank is first passed through nanofiltration device and carries out organic-inorganic salt by the utility model
The organic pollutions such as humus in electrodialysis fresh water are surveyed enrichment concentration by separation in nanofiltration concentrated water, and the fresh water of nanofiltration enters back into
Low pressure reverse osmosis device carries out reverse-osmosis treated, and to the further advanced treating of nanofiltration fresh water production water, low pressure reverse osmosis dialyzate reaches
To industry water reuse standard or discharge standard.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Reference sign：
1. raw water box, 2. delivery pumps, 3. electric dialyzator fresh-water tanks, 4. electric dialyzators, 5. electric dialyzator concentrated water casees, 6. electric osmoses
Parser concentrated water water producing tank, 7. nanofiltration membrane components, 8. nanofiltration fresh water water producing tanks, 9. nanofiltration concentrated water water producing tanks, 10. reverse osmosis membrane groups
Part, 11. reverse osmosis freshwater casees.
Specific implementation mode
For the technology contents of technical solution, construction feature, the objects and the effects are described in detail, below in conjunction with specific reality
It applies example and attached drawing is coordinated to be explained in detail.
Referring to Fig. 1, a kind of rubbish percolation liquid membrane of the present embodiment concentrates solution electrodialysis advanced treatment device, including raw water box
1, delivery pump 2, homogeneous ion-exchange membrane electrodialysis plant, nanofiltration device and low pressure reverse osmosis device, the homogeneous ion exchange
Membrane electrodialysis device includes two electric dialyzator fresh-water tanks 3, electric dialyzator concentrated water case 5, electric dialyzator 4 and electric dialyzator concentrated water
Water producing tank 6, the raw water box 1 are connected by delivery pump 2 with two electric dialyzator fresh-water tanks 3,5 He of electric dialyzator concentrated water case
Electric dialyzator fresh-water tank 3, which exports, to be connected with the deep or light chamber inlet of electric dialyzator 4,4 water outlet of electric dialyzator and electric dialyzator
Fresh-water tank 3 is connected, and the outlet of 4 concentrated water of electric dialyzator is connected with electric dialyzator concentrated water case 5, by the way of recycling desalination, works as fresh water
Concentration reaches certain numerical value and starts nanofiltration membrane component, while the fresh water inlet pipeline and outlet pipeline of electric dialyzator are switched to separately
One fresh-water tank.The electric dialyzator concentrated water case 5 and electric dialyzator fresh-water tank 3 are equipped with online conductivity meter.In electric dialyzator
The babinet of concentrated water case 5 and electric dialyzator fresh-water tank 3 assembles online conductivity meter, for monitoring variation of water on-line.It is described
Nanofiltration device includes nanofiltration membrane component 7, nanofiltration concentrated water water producing tank 9 and nanofiltration fresh water water producing tank 8, the nanofiltration membrane component 7 and electricity
Dialyzer fresh water water producing tank 3 is connected, and 7 concentrated water of the nanofiltration component outlet is connected with nanofiltration concentrated water water producing tank 9, the NF membrane group
7 water outlet of part is connected with nanofiltration production aquatic products water tank 8.The low pressure reverse osmosis device includes reverse osmosis membrane assembly 10 and reverse osmosis
Water producing tank 11, the reverse osmosis membrane assembly 10 are connected with nanofiltration fresh water water producing tank 11, the outlet of 10 concentrated water of the reverse osmosis membrane assembly
It is connected with raw water box 1,10 water outlet of the reverse osmosis membrane assembly is connected with reverse osmosis produced water tank 11.Reverse osmosis membrane assembly 10 is grasped
Make the bar of pressure≤25.After the reverse osmosis concentrated water tank is connected with raw water box, reverse osmosis concentrated water may return to electrodialysis system
It carries out applying mechanically desalination, the reverse osmosis freshwater case, for storing counter-infiltration dislysate.
The operation principle of the present embodiment：Raw water box 1 directly enters a wherein electric dialyzator fresh-water tank 3, conveying through delivery pump 2
The landfill leachate of raw water box 1 is concentrated liquid raw water to another electric dialyzator fresh-water tank 3,5 case of electric dialyzator concentrated water case by pump 2
A certain amount of tap water is injected in vivo, and then landfill leachate concentration liquid raw water enters electrodialysis through electric dialyzator fresh-water tank 3 again
Device, tap water enters electric dialyzator through electric dialyzator concentrated water case 5 again, by electric dialyzator fresh-water tank, 3, electric dialyzator concentrated water case 5,
The homogeneous ion-exchange membrane electrodialysis plant that electric dialyzator 4 and electric dialyzator concentrated water water producing tank 6 are constituted is used for landfill leachate
Heavy metal, inorganic ion in concentrate are removed, and nanofiltration and anti-is given after so that its conductivity is reduced to 5 ~ 10 mS/cm
Infiltration carries out advanced treating；Heavy metal, inorganic ion for being removed etc. are enriched with concentration in electric dialyzator concentrated water case, finally reach
The effect of liquid minimizing >=80% is concentrated to landfill leachate.Carry out desalination by the way of recycling desalination.So that in fresh-water tank
Electrical conductivity of solution constantly drop to some degree and be discharged into fresh water water producing tank, concentrated water concentration constantly increases, and volume is increased to a bit
Degree is discharged into concentrated water water producing tank.When electric dialyzator fresh-water tank 3 and 5 water of electric dialyzator concentrated water case reach a certain height, start equal
Phase ion-exchange membrane electrodialysis device, the deep or light aquatic products water of electric dialyzator respectively enter concentrated water case 5 and two fresh-water tanks 3, and simultaneously
The concentrated water water producing tank 6 and another fresh-water tank 3 are connect with electric dialyzator concentrated water case 5 and nanofiltration membrane component 7 respectively, by concentrated water production water portion
Divide and is back to electric dialyzator concentrated water case 5.It is provided with overflow pipe at 2/3rds of the height of the electric dialyzator concentrated water water producing tank,
Concentrated water is by overflow pipe overflow into electric dialyzator concentrated water water tank.The nanofiltration membrane component and two electric dialyzator fresh-water tank phases
Even.The fresh water of two electric dialyzator fresh-water tanks 3 enters nanofiltration device, the implementation operating pressure 12bar of nanofiltration membrane component 7, desalination
Liquid conductivity 10mS/cm.Nanofiltration fresh water enters back into low pressure reverse osmosis device, the implementation operating pressure 17 of reverse osmosis 10 film group
bar.252 μ S/cm of low pressure reverse osmosis dialyzate conductance, reach industry water reuse standard.The low pressure reverse osmosis device for pair
Electrodialysis fresh water produces the further advanced treating of water, the organic pollutions such as humus in electrodialysis fresh water is surveyed in nanofiltration concentrated water rich
Collection concentration, low pressure reverse osmosis dialyzate reach industry water reuse standard or discharge standard.
Electric dialyzator is respectively arranged in the front and the rear with a concentrated water case and two fresh-water tanks, in practical water treatment procedure, one of them
Electric dialyzator fresh water water producing tank desalination is handled into nanofiltration device to a certain extent, at this time another fresh-water tank of electric dialyzator
It intakes again from raw water box, the setting and switching of two fresh-water tanks, advantage is：The continuous operation of electric dialyzator is realized, simultaneously
Two fresh water are also the inlet tank of nanofiltration membrane component, reduce the mating water tank of nanofiltration membrane component.In going out for electric dialyzator fresh-water tank
Mouth is that the entrance of nanofiltration membrane component is equipped with online conductivity meter, when the conductivity of electric dialyzator fresh water water producing tank reaches desired value
Start nanofiltration membrane component, nanofiltration membrane component brings into operation, and the concentrated water of nanofiltration drains into nanofiltration concentrated water water producing tank, nanofiltration membrane component
Fresh water is discharged into fresh water production aquatic products case, while the fresh water water producing tank of nanofiltration is connected with reverse osmosis module.
The clever structure of the present embodiment, raw water box directly enter electric dialyzator fresh-water tank, electric dialyzator concentrated water through delivery pump
Case injects a certain amount of tap water, then enters electric dialyzator after electric dialyzator fresh-water tank and electric dialyzator concentrated water case respectively again,
The concentrated water water producing tank and fresh-water tank of electric dialyzator are also connect with electric dialyzator concentrated water case and electric dialyzator fresh-water tank respectively, without numerous
Cumbersome equipment, the design costs of effective product such as trivial ultrafiltration apparatus early period facilitate mass production.
The present embodiment handles the fresh water in electric dialyzator fresh water water producing tank by nanofiltration, by the humic in electrodialysis fresh water
The organic pollutions such as matter survey enrichment concentration in nanofiltration concentrated water, and low pressure reverse osmosis device carries out reverse-osmosis treated, to nanofiltration fresh water production
The further advanced treating of water, low pressure reverse osmosis dialyzate reaches industry water reuse standard or discharge standard.
The present embodiment effectively reduces technique construction cost and operating cost, and operation is easy to operate.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or terminal device including a series of elements include not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device including the element.This
Outside, herein, " being more than ", " being less than ", " being more than " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understandings
It includes this number to be.
Although the various embodiments described above are described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications can be made to these embodiments, so the foregoing is merely the realities of the utility model
Example is applied, the scope of patent protection of the utility model is not intended to limit, it is every to utilize the utility model specification and accompanying drawing content
Made by equivalent structure or equivalent flow shift, be applied directly or indirectly in other relevant technical fields, and include similarly
Within the scope of patent protection of the utility model.
Claims (6)
1. a kind of rubbish percolation liquid membrane concentrates solution electrodialysis advanced treatment device, it is characterised in that：Including raw water box, delivery pump,
Homogeneous ion-exchange membrane electrodialysis plant, nanofiltration device and low pressure reverse osmosis device, the homogeneous ion-exchange membrane electrodialysis dress
It sets including two electric dialyzator fresh-water tanks, electric dialyzator concentrated water case, electric dialyzator and electric dialyzator concentrated water water producing tank, the raw water
Case is connected by delivery pump with electric dialyzator fresh-water tank and entrance, the electric dialyzator concentrated water case and the outlet of electric dialyzator fresh-water tank
Be connected with electrodialyser inlet, electrodialyser outlet respectively with electric dialyzator fresh water water producing tank and electric dialyzator concentrated water water producing tank
It is connected, the nanofiltration device includes nanofiltration membrane component, nanofiltration concentrated water water producing tank and nanofiltration fresh water water producing tank, the nanofiltration membrane component
It is connected with two electric dialyzator fresh water water producing tanks, the nanofiltration membrane component concentrated water outlet is connected with nanofiltration concentrated water water producing tank, described
Nanofiltration membrane component water outlet is connected with nanofiltration fresh water water producing tank, and the low pressure reverse osmosis device includes reverse osmosis membrane assembly and anti-
Water producing tank is permeated, the reverse osmosis membrane assembly is connected with nanofiltration fresh water water producing tank, the reverse osmosis membrane assembly concentrated water outlet and original
Water tank is connected, and the reverse osmosis membrane assembly water outlet is connected with reverse osmosis produced water tank.
2. a kind of rubbish percolation liquid membrane according to claim 1 concentrates solution electrodialysis advanced treatment device, it is characterised in that：
It is connected between two electric dialyzator fresh-water tanks, electric dialyzator concentrated water water producing tank is connected with electric dialyzator concentrated water case.
3. a kind of rubbish percolation liquid membrane according to claim 2 concentrates solution electrodialysis advanced treatment device, it is characterised in that：
It is provided with overflow pipe at 2/3rds of the height of the electric dialyzator concentrated water water producing tank, concentrated water is by overflow pipe overflow into electricity
Dialyzer concentrated water water tank.
4. a kind of rubbish percolation liquid membrane according to claim 1 concentrates solution electrodialysis advanced treatment device, it is characterised in that：
The nanofiltration membrane component is connected with two electric dialyzator fresh-water tanks, and nanofiltration fresh water water producing tank is connected with reverse osmosis module.
5. a kind of rubbish percolation liquid membrane according to claim 1 concentrates solution electrodialysis advanced treatment device, it is characterised in that：
The concentrated water pipeline of the nanofiltration concentrated water water producing tank is connected with raw water box, and the fresh water water producing tank of the nanofiltration membrane component is equipped with liquid level
Meter.
6. a kind of rubbish percolation liquid membrane according to claim 1 concentrates solution electrodialysis advanced treatment device, it is characterised in that：
The electric dialyzator concentrated water case and electric dialyzator fresh-water tank are equipped with online conductivity meter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721294702.0U CN207608434U (en) | 2017-10-10 | 2017-10-10 | A kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device |
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| CN201721294702.0U CN207608434U (en) | 2017-10-10 | 2017-10-10 | A kind of rubbish percolation liquid membrane concentration solution electrodialysis advanced treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252869A (en) * | 2020-02-24 | 2020-06-09 | 鹭滨环保科技（上海）股份有限公司 | Treatment system and method for improving drainage water quality of landfill leachate |
| CN111302552A (en) * | 2020-03-09 | 2020-06-19 | 广州市环境保护工程设计院有限公司 | Landfill leachate concentrated solution resource utilization system and method |
| CN114716083A (en) * | 2022-02-14 | 2022-07-08 | 唐山钢铁集团有限责任公司 | Industrial strong brine zero-discharge treatment system and method |
-
2017
- 2017-10-10 CN CN201721294702.0U patent/CN207608434U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111252869A (en) * | 2020-02-24 | 2020-06-09 | 鹭滨环保科技（上海）股份有限公司 | Treatment system and method for improving drainage water quality of landfill leachate |
| CN111302552A (en) * | 2020-03-09 | 2020-06-19 | 广州市环境保护工程设计院有限公司 | Landfill leachate concentrated solution resource utilization system and method |
| CN114716083A (en) * | 2022-02-14 | 2022-07-08 | 唐山钢铁集团有限责任公司 | Industrial strong brine zero-discharge treatment system and method |
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