CN112777849A - Comprehensive treatment system and method for landfill leachate - Google Patents
Comprehensive treatment system and method for landfill leachate Download PDFInfo
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- CN112777849A CN112777849A CN202011473576.1A CN202011473576A CN112777849A CN 112777849 A CN112777849 A CN 112777849A CN 202011473576 A CN202011473576 A CN 202011473576A CN 112777849 A CN112777849 A CN 112777849A
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- 239000000149 chemical water pollutant Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000012528 membrane Substances 0.000 claims abstract description 30
- 238000001728 nano-filtration Methods 0.000 claims abstract description 17
- 230000009615 deamination Effects 0.000 claims abstract description 12
- 238000006481 deamination reaction Methods 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000002351 wastewater Substances 0.000 claims abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- 239000011550 stock solution Substances 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000006228 supernatant Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 11
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 10
- 208000024191 minimally invasive lung adenocarcinoma Diseases 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 238000000108 ultra-filtration Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 239000005416 organic matter Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 description 6
- 238000001223 reverse osmosis Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000011226 reinforced ceramic Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
-
- 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
Abstract
The invention discloses a comprehensive treatment system for landfill leachate, which comprises a pretreatment system, an MBR biochemical treatment unit, a nanofiltration unit, an deamination membrane system and a BAC unit which are connected in sequence; the pretreatment system is used for removing suspended solids in the percolate and softening water quality; the MBR biochemical treatment unit is used for removing organic matters and simultaneously removing nitrogen and phosphorus; the nanofiltration unit is used for further removing organic matters; the deamination membrane system is used for further removing ammonia nitrogen in the wastewater; the BAC unit is used to remove residual organics. According to the invention, the leachate stock solution is subjected to hardness alkalinity removal, suspended solids removal and partial organic matter removal through the pretreatment system, so that the operation load of each subsequent treatment system is greatly reduced, the scaling problem of each subsequent system is avoided, the cleaning frequency of each system is reduced, and the operation cost of the system is greatly reduced; meanwhile, the higher water yield of the membrane system is ensured, and the system is more stable in operation.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to comprehensive treatment of leachate of a refuse landfill.
Background
The landfill leachate has the characteristics of high ammonia nitrogen content, high organic pollutant concentration, high salt content, complex components, large fluctuation range of water quality and water quantity change and the like. The current mainstream treatment process is 'pretreatment + MBR biochemical unit + nanofiltration + reverse osmosis', the process can effectively ensure that indexes such as COD, ammonia nitrogen and the like of the effluent stably reach the standard of GB16889-2008 table 2, and the effluent quality is good. But the prior treatment process has the main defects that: the reverse osmosis concentrated water is difficult to treat and has high salt content, and the concentrated water is mostly re-filled into a landfill site at present, so that the method inevitably causes the salt content of the percolate to increase day by day, and the post-treatment difficulty is increased more and more. And the conventional concentrated water treatment evaporation process cannot be operated stably and continuously for a long time due to scaling. Meanwhile, the reverse osmosis membrane has higher cost.
For example, chinese patent CN102167479A discloses a landfill leachate treatment process, that is, a reverse osmosis process is adopted. The process comprises the following steps: the method comprises the steps of pretreatment, anaerobic treatment, gas-reinforced ceramic membrane MBR system treatment, nanofiltration/reverse osmosis advanced treatment, concentrated solution treatment and sludge treatment. Treating the concentrated solution by adopting a method of denitrification, oxidation and coagulating sedimentation; most organic matters are decomposed into carbon dioxide, so that many defects caused by backflow of concentrated solution are avoided, high-valence salt and heavy metal are completely fixed, and the salt balance problem of the whole system is solved. Compared with the invention, the invention uses the nanofiltration system to release monovalent salt in the leachate, thereby reducing the difficulty of treating the concentrated solution; an anaerobic process is not used, skid-mounted equipment is fully utilized, and the equipment positions can be flexibly arranged according to the field conditions. In addition, the concentrated solution is treated by using the advanced oxidation process, the treatment effect is difficult to ensure, and meanwhile, the medicament cost is high.
Disclosure of Invention
The invention aims to solve the problem that the method utilizes a pretreatment system, an MBR biochemical treatment unit, a nanofiltration unit, a deamination membrane system and a BAC unit, can solve the technical problem that the percolate can not be treated in full quantity in the prior art, and simultaneously solves the scaling problem in the concentrated water evaporation treatment process.
In order to solve the problems, the invention adopts the following scheme: a comprehensive treatment system for leachate in a landfill site is characterized by comprising a pretreatment system, an MBR biochemical treatment unit, a nanofiltration unit, a deamination membrane system and a BAC unit which are connected in sequence; the pretreatment system is used for removing suspended solids in the percolate and softening water quality; the MBR biochemical treatment unit is used for removing organic matters and simultaneously removing nitrogen and phosphorus; the nanofiltration unit is used for further removing organic matters; the deamination membrane system is used for further removing ammonia nitrogen in the wastewater; the BAC unit is used to remove residual organics.
The pretreatment system is used for removing hardness alkalinity and partial organic matters in the leachate, so that the scaling problem of each subsequent system is avoided, the cleaning frequency of each system is reduced, and the operation cost of the system is greatly reduced; meanwhile, the higher water yield of the membrane unit is ensured, and the system runs more stably.
Further, the comprehensive treatment system for the landfill leachate according to the design scheme is characterized in that the pretreatment system comprises a reaction tank, a supernatant tank and a TUF membrane system which are sequentially connected; the reaction tank is provided with a sodium bicarbonate dosing device and a sodium hydroxide dosing device; the supernatant tank is provided with an active carbon powder adding device.
Further, the landfill leachate treatment method of the landfill leachate comprehensive treatment system according to the design scheme is characterized by comprising the following steps:
s1: introducing the landfill leachate stock solution into a pretreatment system, removing suspended solids in the leachate, softening and removing hardness;
s2: introducing the produced water obtained in the step S1 into an MBR biochemical treatment system to remove organic matters and simultaneously remove nitrogen and phosphorus;
s3: introducing the effluent obtained in the step S2 into a nanofiltration system for further separation of organic matters from water;
s4: introducing the produced water obtained in the step S3 into a deamination membrane system to remove ammonia nitrogen in the wastewater;
s5: introducing the concentrated water obtained in the step S3 into an immersed combustion system, and performing ultrahigh multiple concentration treatment on the concentrated water;
s6: and (5) introducing the water produced in the step S4 into a BAC treatment system, removing residual organic matters, and discharging the effluent which reaches the standard.
Further, according to the above design scheme, the landfill leachate treatment method based on the landfill leachate comprehensive treatment system is characterized in that the pretreatment system in step S1 comprises a reaction tank, a supernatant tank and a TUF membrane system which are connected in sequence; and after the leachate stock solution enters a reaction tank, adding sodium bicarbonate and sodium hydroxide solution into the reaction tank for mixing reaction, after the reaction is finished and precipitation is finished, feeding supernatant into a supernatant tank, adding powdered activated carbon into the supernatant tank, and feeding the obtained mixed solution into a TUF membrane system for further filtering to separate organic matters from water.
Further, the landfill leachate treatment method based on the landfill leachate comprehensive treatment system according to the design scheme is characterized in that: in step S4, the MBR biochemical treatment system is an integrated skid-mounted device using an immersed ultrafiltration membrane.
Further, according to the above design scheme, the landfill leachate treatment method based on the landfill leachate comprehensive treatment system is characterized in that the addition amount of the powdered activated carbon is 1 per mill of the water inlet volume.
Further, according to the design scheme, the landfill leachate treatment method based on the comprehensive landfill leachate treatment system is characterized in that the dosage ratio of sodium bicarbonate to sodium hydroxide is 1:1, and the dosage of sodium bicarbonate to sodium hydroxide is 3 per mill of the water inlet volume.
The invention has the following technical effects: the technical scheme of this application is that pretreatment systems designs for the leachate raw water gets into the reaction tank, adds sodium bicarbonate and sodium hydroxide solution respectively and carries out mixing reaction, and the reaction finishes the supernatant entering supernatant pond after the sediment, and powdered activated carbon is thrown to the supernatant, and the separation that organic matter and water were carried out in further filtration that gets into TUF membrane system to the gained mixed liquid. The TUF membrane system is a tubular filtration membrane system used to replace conventional settling or clarification tanks to obtain better water quality. Membrane filters use a polymer membrane layer to separate and retain suspended solids from wastewater.
Suspended particles and partial organic matters in the leachate are fully removed in the pretreatment process, the hardness of the water is removed, and the hardness content of the treated water is less than 150 mg/L. Greatly reduces the operation load of each subsequent treatment system, and fully prevents the scaling problem of the calcium and magnesium plasma on the subsequent membrane system. Further leading the water yield of the subsequent nanofiltration system to be higher than 90 percent and the operating pressure to be 10 bar; COD in the nanofiltration product water is 120 mg/L. The pH value of the inlet water of the ammonia nitrogen removal system is required to be more than 10, and the pH value of the pre-treatment system is adjusted while the water quality is adjusted, so that the ammonia nitrogen removal rate of the ammonia nitrogen removal system reaches 98%. The evaporation temperature in the submerged combustion system is set at 80 ℃, and the concentration multiple can reach 25 times to the crystallization slag discharge.
Drawings
FIG. 1 is a process flow diagram.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): the raw water of the percolate of a certain refuse landfill treated by the method has COD =8000mg/L and NH3-N =3000mg/L, hardness =1600 mg/L, the raw water passing through the reaction cell, supernatant cell and TUF membrane system of the pretreatment system in sequence; the reaction tank is provided with a sodium bicarbonate dosing device and a sodium hydroxide dosing device, sodium bicarbonate and sodium hydroxide are added into the reaction tank for precipitation reaction to remove suspended solids, then the supernatant enters a supernatant tank, activated carbon powder is added into the supernatant tank, and the mixture enters a TUF membrane system to further remove suspended solidsSolid and part of organic matter. The COD of the pretreated effluent is 6500 mg/L, the hardness is 100-150 mg/L, and then the pretreated effluent enters an MBR biochemical treatment system for organic matter decomposition, deamination and dephosphorization, and the COD of the effluent is 1500 mg/L. And (3) the biochemical effluent enters a nanofiltration unit to separate organic matters from water, COD (chemical oxygen demand) effluent of nanofiltration product water is 130mg/L, nanofiltration concentrated water enters an immersion combustion system to be concentrated by more than 25 times, and crystallization and slag discharge are carried out. The deamination membrane effluent is finally BAC decomposed to residual organic matters in the wastewater, and finally<60 mg/L，NH3-N<10mg/L, and the effluent reaches the standard of table 2 of the domestic garbage landfill pollution control standard (GB 16889-2008).
Claims (7)
1. A comprehensive treatment system for leachate in a landfill site is characterized by comprising a pretreatment system, an MBR biochemical treatment unit, a nanofiltration unit, a deamination membrane system and a BAC unit which are connected in sequence; the pretreatment system is used for removing suspended solids in the percolate and softening water quality; the MBR biochemical treatment unit is used for removing organic matters and simultaneously removing nitrogen and phosphorus; the nanofiltration unit is used for further removing organic matters; the deamination membrane system is used for further removing ammonia nitrogen in the wastewater; the BAC unit is used to remove residual organics.
2. The comprehensive treatment system for the landfill leachate according to claim 1, wherein the pretreatment system comprises a reaction tank, a supernatant tank and a TUF membrane system which are connected in sequence; the reaction tank is provided with a sodium bicarbonate dosing device and a sodium hydroxide dosing device; the supernatant tank is provided with an active carbon powder adding device.
3. A landfill leachate treatment method based on the landfill leachate comprehensive treatment system of claim 1, characterized by comprising the steps of:
s1: introducing the landfill leachate stock solution into a pretreatment system, adding medicaments, carrying out mixed reaction, precipitating, removing suspended solids in the leachate, softening and removing hardness, and then carrying out adsorption filtration;
s2: introducing the produced water obtained in the step S1 into an MBR biochemical treatment system to remove organic matters and simultaneously remove nitrogen and phosphorus;
s3: introducing the effluent obtained in the step S2 into a nanofiltration system for filtering, further separating organic matters from water, introducing the obtained produced water into a deamination membrane system, and introducing the concentrated solution into an immersion combustion system;
s4: introducing the produced water obtained in the step S3 into a deamination membrane system to remove ammonia nitrogen in the wastewater;
s5: introducing the concentrated solution obtained in the step S3 into an immersed combustion system, and performing ultra-high multiple concentration treatment on the concentrated water;
s6: and (5) introducing the water produced in the step S4 into a BAC treatment system, removing residual organic matters, and discharging the effluent which reaches the standard.
4. The landfill leachate treatment method based on the landfill leachate comprehensive treatment system of claim 3, wherein the pretreatment system in step S1 comprises a reaction tank, a supernatant tank and a TUF membrane system connected in sequence; and after the leachate stock solution enters a reaction tank, adding sodium bicarbonate and sodium hydroxide solution into the reaction tank for mixing reaction, after the reaction is finished and precipitation is finished, feeding supernatant into a supernatant tank, adding powdered activated carbon into the supernatant tank, and feeding the obtained mixed solution into a TUF membrane system for further filtering to separate organic matters from water.
5. The landfill leachate treatment method based on the landfill leachate comprehensive treatment system according to claim 2, wherein the landfill leachate treatment method comprises the following steps: in step S4, the MBR biochemical treatment system is an integrated skid-mounted device using an immersed ultrafiltration membrane.
6. The landfill leachate treatment method based on the landfill leachate comprehensive treatment system of claim 3, wherein the addition amount of the powdered activated carbon is 1% o of the volume of the influent water.
7. The landfill leachate treatment method based on the landfill leachate comprehensive treatment system of claim 5, wherein the dosage ratio of the sodium bicarbonate to the sodium hydroxide is 1:1, and the dosage of the sodium bicarbonate to the sodium hydroxide is 3 per mill of the water inlet volume.
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| CN202011473576.1A CN112777849A (en) | 2020-12-15 | 2020-12-15 | Comprehensive treatment system and method for landfill leachate |
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| CN202011473576.1A CN112777849A (en) | 2020-12-15 | 2020-12-15 | Comprehensive treatment system and method for landfill leachate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724419A (en) * | 2005-07-15 | 2006-01-25 | 清华大学 | Resource process of inflitration liquid |
| CN103011502A (en) * | 2012-12-05 | 2013-04-03 | 浙江理工大学 | Method for deeply treating waste paper pulping and papermaking comprehensive wastewater by using ultrafiltration membrane |
| CN111943321A (en) * | 2020-07-22 | 2020-11-17 | 湖北兴发环保科技有限公司 | Method for recycling glycine production wastewater resources |
| CN112047566A (en) * | 2020-08-12 | 2020-12-08 | 武汉天源环保股份有限公司 | Full-quantitative treatment system and method for landfill leachate |
-
2020
- 2020-12-15 CN CN202011473576.1A patent/CN112777849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1724419A (en) * | 2005-07-15 | 2006-01-25 | 清华大学 | Resource process of inflitration liquid |
| CN103011502A (en) * | 2012-12-05 | 2013-04-03 | 浙江理工大学 | Method for deeply treating waste paper pulping and papermaking comprehensive wastewater by using ultrafiltration membrane |
| CN111943321A (en) * | 2020-07-22 | 2020-11-17 | 湖北兴发环保科技有限公司 | Method for recycling glycine production wastewater resources |
| CN112047566A (en) * | 2020-08-12 | 2020-12-08 | 武汉天源环保股份有限公司 | Full-quantitative treatment system and method for landfill leachate |
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