CN111470704A - Advanced treatment and recycling method for leachate of waste incineration power plant - Google Patents
Advanced treatment and recycling method for leachate of waste incineration power plant Download PDFInfo
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- CN111470704A CN111470704A CN202010191011.8A CN202010191011A CN111470704A CN 111470704 A CN111470704 A CN 111470704A CN 202010191011 A CN202010191011 A CN 202010191011A CN 111470704 A CN111470704 A CN 111470704A
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- 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
- 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
- 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
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
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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
Abstract
The advanced treatment method of the landfill leachate is characterized by comprising the following steps: the landfill leachate is treated by MBR, nanofiltration, reverse osmosis, electrodialysis membrane systems and other processes, so that the wastewater is deeply treated and recycled, the cost is saved, the discharge of pollutants is reduced, and the pollution to the environment is reduced.
Description
Technical Field
The invention relates to a deep treatment and recycling method for leachate of a waste incineration power plant, belonging to the technical field of treatment of the leachate of garbage.
Background
The kitchen waste in domestic garbage has the content of kitchen waste components as high as about 60 percent and the moisture content as high as more than 50 percent, and is quite different from the garbage which is mainly made of paper and plastics and has low moisture content in developed countries. According to statistics, the water content of the garbage per se in northern areas of China contributes to the production amount of the leachate of the landfill by more than 22% -45%, and even more than 50% in southern areas. The production of landfill leachate per ton in developed countries is about 150 liters, while the production of landfill leachate per ton in China can reach 500-800 liters.
The nature of landfill leachate varies with the duration of the landfill, which is determined primarily by the stabilization process of the landfill. The stabilization process of a landfill is generally divided into five stages, namely an initial conditioning stage, a transition stage, an acidification stage, a methane fermentation stage and a maturation stage. The water-retaining agent is mainly derived from water contained in garbage in a garbage landfill, rain, snow and water entering the landfill and other water, and is high-concentration organic wastewater formed by deducting the saturated water-retaining capacity of the garbage and a soil covering layer and passing through the garbage layer and the soil covering layer.
Disclosure of Invention
The invention aims to provide a method for recycling landfill leachate, which can carry out advanced treatment on the landfill leachate to realize recycling. Therefore, the invention adopts the following technical scheme: a deep treatment and reuse method for leachate of a waste incineration power plant comprises the following steps:
(1) and (3) introducing the landfill leachate into an MBR treatment system, and introducing the obtained MBR produced water into a nanofiltration system to obtain primary nanofiltration produced water and nanofiltration concentrated water.
(2) And (2) introducing the nanofiltration produced water obtained in the step (1) into a fresh water tank of an electrodialysis membrane system for treatment, and introducing nanofiltration concentrated water into a concentrated solution tank for collection. And performing electrodialysis treatment to obtain electrodialysis water and concentrated water.
(3) And (3) discharging the electrodialysis concentrated water obtained in the step (2) to a concentrated solution pool, and performing primary reverse osmosis treatment on the produced water to obtain primary reverse osmosis fresh water and primary reverse osmosis concentrated water.
(4) And (4) discharging the primary reverse osmosis fresh water obtained in the step (3) to a reuse water pool for recycling, and simultaneously carrying out secondary reverse osmosis treatment on the primary reverse osmosis concentrated water obtained in the step (3) to obtain secondary reverse osmosis produced water and secondary reverse osmosis concentrated water.
(5) And (3) discharging the secondary reverse osmosis produced water obtained in the step (4) to a pool for recycling, and introducing the secondary reverse osmosis concentrated water into a concentrated water tank of the electrodialysis membrane system in the step (2) for retreatment.
Preferably, the method comprises the following steps: the water produced by the first-stage reverse osmosis in the step (3) and the second-stage reverse osmosis in the step (4) is recycled, concentrated water of the second-stage reverse osmosis is connected to a concentrated water tank of an electrodialysis membrane system in the step (2) for treatment, concentrated nanofiltration water of the step (1) and electrodialysis concentrated water of the step (3) are discharged to a concentrated liquid tank for centralized treatment, the MBR treatment system comprises two stages of pretreatment and membrane separation, and the MBR system in the step (1) comprises: the device comprises an MBR water production self-priming pump, an MBR water production tank, a nanofiltration system booster pump, a nanofiltration system security filter, a nanofiltration system high-pressure pump, a nanofiltration membrane system and a nanofiltration water production tank; it is preferable that: the electrodialysis membrane system in the step (2) comprises: an electrodialysis concentration pole water tank, an electrodialysis system cartridge filter, an electrodialysis system, an electrodialysis production water tank and a concentrated solution water tank; the first-stage reverse osmosis in the step (3) consists of a first-stage reverse osmosis booster pump, a first-stage reverse osmosis cartridge filter, a first-stage reverse osmosis high-pressure pump, a first-stage reverse osmosis membrane system, a first-stage reverse osmosis concentrated water tank and a recycling water tank; and (4) the secondary reverse osmosis in the steps (4) and (5) is composed of a secondary reverse osmosis booster pump, a secondary reverse osmosis cartridge filter, a secondary reverse osmosis high-pressure pump and a secondary reverse osmosis membrane system.
The invention filters the garbage percolate cleaner, and the obtained water resource can be utilized, thereby playing the role of protecting the environment, greatly improving the working efficiency of the garbage disposal station and facilitating the garbage disposal.
Drawings
Fig. 1 is a working principle diagram of the present invention.
Detailed Description
The invention will now be described in detail with reference to the accompanying drawings, in which: fig. 1 shows a method for advanced treatment and recycling of leachate from a waste incineration power plant, which comprises the following steps:
(1) and (3) introducing the landfill leachate into an MBR treatment system, and introducing the obtained MBR produced water into a nanofiltration system to obtain primary nanofiltration produced water and nanofiltration concentrated water.
(2) And (2) introducing the nanofiltration produced water obtained in the step (1) into a fresh water tank of an electrodialysis membrane system for treatment, and introducing nanofiltration concentrated water into a concentrated solution tank for collection. And performing electrodialysis treatment to obtain electrodialysis water and concentrated water.
(3) And (3) discharging the electrodialysis concentrated water obtained in the step (2) to a concentrated solution pool, and performing primary reverse osmosis treatment on the produced water to obtain primary reverse osmosis fresh water and primary reverse osmosis concentrated water.
(4) And (4) discharging the primary reverse osmosis fresh water obtained in the step (3) to a reuse water pool for recycling, and simultaneously carrying out secondary reverse osmosis treatment on the primary reverse osmosis concentrated water obtained in the step (3) to obtain secondary reverse osmosis produced water and secondary reverse osmosis concentrated water.
(5) And (3) discharging the secondary reverse osmosis produced water obtained in the step (4) to a pool for recycling, and introducing the secondary reverse osmosis concentrated water into a concentrated water tank of the electrodialysis membrane system in the step (2) for retreatment.
The water produced by the first-stage reverse osmosis in the step (3) and the second-stage reverse osmosis in the step (4) is recycled, concentrated water of the second-stage reverse osmosis is connected to a concentrated water tank of an electrodialysis membrane system in the step (2) for treatment, concentrated nanofiltration water of the step (1) and electrodialysis concentrated water of the step (3) are discharged to a concentrated liquid tank for centralized treatment, the MBR treatment system comprises two stages of pretreatment and membrane separation, and the MBR system in the step (1) comprises: MBR produces water self priming pump, MBR and produces the water tank, receive filtration system booster pump, receive filtration system cartridge filter, receive filtration system high-pressure pump, receive filtration membrane system, receive and strain and produce the water tank, state in step (2) electrodialysis membrane system and include: an electrodialysis concentration pole water tank, an electrodialysis system cartridge filter, an electrodialysis system, an electrodialysis production water tank and a concentrated solution water tank; the first-stage reverse osmosis in the step (3) consists of a first-stage reverse osmosis booster pump, a first-stage reverse osmosis cartridge filter, a first-stage reverse osmosis high-pressure pump, a first-stage reverse osmosis membrane system, a first-stage reverse osmosis concentrated water tank and a recycling water tank; and (4) the secondary reverse osmosis in the steps (4) and (5) is composed of a secondary reverse osmosis booster pump, a secondary reverse osmosis cartridge filter, a secondary reverse osmosis high-pressure pump and a secondary reverse osmosis membrane system.
The invention carries out the treatment of the step (1) on the landfill leachate: the MBR membrane system is used to further enhance the biological treatment effect of the wastewater, the system has high volume load, small occupied area and high removal rate of refractory organic matters and ammonia nitrogen, the quality of the effluent is far superior to that of the traditional biological treatment process, and the quality of the effluent has the characteristics of low BOD, SS and fungi. After the wastewater after biochemical treatment is treated by an MBR system, the removal rate of COD and SS reaches more than 90 percent, and the removal rate of ammonia nitrogen reaches more than 99 percent.
The water treated by the MBR enters a nanofiltration system through a nanofiltration booster pump, NF has the function of intercepting macromolecular organic matters COD and partial salt which cannot be biochemically treated, and the nanofiltration clear liquid can reach a very low COD and salt concentration level. The recovery rate of nanofiltration fresh water is 85 percent, 15 percent of concentrated solution is generated, and the concentrated solution is discharged to a concentrated solution pool.
And (2) introducing the nanofiltration produced water obtained in the step (1) into a fresh water tank of an electrodialysis membrane system for treatment, and introducing nanofiltration concentrated water into a concentrated solution tank for collection. Electrodialysis treatment is carried out to obtain electrodialysis concentrated water and fresh water. The electrodialysis device is mainly used for desalting and further removing ammonia nitrogen ions, so that the desalting rate of the system reaches more than 80%, and the recovery rate reaches more than 95%. Wherein the removal rate of ammonia nitrogen in the wastewater reaches more than 50 percent.
And discharging the concentrated solution obtained after the electrodialysis treatment to a concentrated solution pool, pressurizing the fresh water by a primary reverse osmosis booster pump, passing through a primary reverse osmosis cartridge filter, passing through a primary reverse osmosis high-pressure pump, and then entering a primary reverse osmosis system for treatment to obtain primary reverse osmosis concentrated water and primary reverse osmosis fresh water, wherein the fresh water is introduced into a reuse water tank for reuse, and the concentrated water is discharged to a secondary reverse osmosis system. The primary reverse osmosis and the secondary reverse osmosis are used for intercepting the macromolecular organic matters COD and partial salt which are not biochemical. The recovery rate of reverse osmosis purified water is 80 percent, and reverse osmosis produced water meets the quality index of reclaimed water.
The concentrated water obtained after the first-stage reverse osmosis treatment is pressurized by a second-stage reverse osmosis booster pump, passes through a second-stage reverse osmosis cartridge filter, enters a second-stage reverse osmosis system for treatment after passing through a second-stage reverse osmosis high-pressure pump, so that second-stage reverse osmosis concentrated water and second-stage reverse osmosis fresh water are obtained, wherein the fresh water is introduced into a reuse water tank for reuse, and the concentrated water is discharged to a fresh water tank of the electrodialysis membrane system for treatment again.
After the whole process is treated by the MBR system → NF system → electrodialysis system → RO system, the quality of the effluent of the percolate reaches the recycling requirement.
Claims (4)
1. A deep treatment and reuse method for leachate of a waste incineration power plant is characterized by comprising the following steps:
(1) introducing the landfill leachate into an MBR treatment system, and introducing the obtained MBR produced water into a nanofiltration system to obtain primary nanofiltration produced water and nanofiltration concentrated water;
(2) introducing the nanofiltration produced water obtained in the step (1) into a fresh water tank of an electrodialysis membrane system for treatment, introducing nanofiltration concentrated water into a concentrated solution tank for collection, and obtaining electrodialysis produced water and concentrated water after electrodialysis treatment;
(3) discharging the electrodialysis concentrated water obtained in the step (2) to a concentrated solution pool, and performing primary reverse osmosis treatment on produced water to obtain primary reverse osmosis fresh water and primary reverse osmosis concentrated water;
(4) discharging the primary reverse osmosis fresh water obtained in the step (3) to a reuse water pool for recycling, and simultaneously carrying out secondary reverse osmosis treatment on the primary reverse osmosis concentrated water obtained in the step (3) to obtain secondary reverse osmosis produced water and secondary reverse osmosis concentrated water;
(5) and (3) discharging the secondary reverse osmosis produced water obtained in the step (4) to a pool for recycling, and introducing the secondary reverse osmosis concentrated water into a concentrated water tank of the electrodialysis membrane system in the step (2) for retreatment.
2. The advanced treatment and recycling method of leachate from a waste incineration power plant according to claim 1, wherein the produced water obtained from the first-stage reverse osmosis in the step (3) and the second-stage reverse osmosis in the step (4) is recycled, concentrated water from the second-stage reverse osmosis is introduced into the concentrated water tank of the electrodialysis membrane system in the step (2) for treatment, and the concentrated nanofiltration water from the step (1) and the concentrated electrodialysis water from the step (3) are discharged into a concentrated solution tank for centralized treatment.
3. The method for advanced treatment and recycling of leachate from a waste incineration power plant according to claim 1, wherein the MBR treatment system comprises two stages of pretreatment and membrane separation.
4. The advanced treatment and recycling method for leachate of refuse incineration power plant according to claim 1, wherein the MBR membrane system in step (1) comprises: the device comprises an MBR water production self-priming pump, an MBR water production tank, a nanofiltration system booster pump, a nanofiltration system security filter, a nanofiltration system high-pressure pump, a nanofiltration membrane system and a nanofiltration water production tank; the electrodialysis membrane system in the step (2) comprises: an electrodialysis concentration pole water tank, an electrodialysis system cartridge filter, an electrodialysis system, an electrodialysis production water tank and a concentrated solution water tank; the first-stage reverse osmosis in the step (3) consists of a first-stage reverse osmosis booster pump, a first-stage reverse osmosis cartridge filter, a first-stage reverse osmosis high-pressure pump, a first-stage reverse osmosis membrane system, a first-stage reverse osmosis concentrated water tank and a recycling water tank; and (4) the secondary reverse osmosis in the steps (4) and (5) is composed of a secondary reverse osmosis booster pump, a secondary reverse osmosis cartridge filter, a secondary reverse osmosis high-pressure pump and a secondary reverse osmosis membrane system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010191011.8A CN111470704A (en) | 2020-03-18 | 2020-03-18 | Advanced treatment and recycling method for leachate of waste incineration power plant |
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| CN202010191011.8A CN111470704A (en) | 2020-03-18 | 2020-03-18 | Advanced treatment and recycling method for leachate of waste incineration power plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286173A (en) * | 2022-06-17 | 2022-11-04 | 天津正达科技有限责任公司 | Acrylic acid and ester waste liquid recycling treatment system and process method |
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| CN116514233A (en) * | 2023-06-20 | 2023-08-01 | 广州市振达环保产业股份有限公司 | Full quantification treatment device and treatment process for leachate of household garbage landfill |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206767868U (en) * | 2017-03-31 | 2017-12-19 | 昆明理工大学 | A kind of garbage percolation liquid treating system |
| CN108929002A (en) * | 2018-09-03 | 2018-12-04 | 上海世渊环保科技有限公司 | A kind of reverse osmosis thick water treatment method of landfill leachate |
| CN109231713A (en) * | 2018-11-08 | 2019-01-18 | 浙江滨盛环境科技有限公司 | A kind of landfill leachate treatment Zero discharging system |
-
2020
- 2020-03-18 CN CN202010191011.8A patent/CN111470704A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206767868U (en) * | 2017-03-31 | 2017-12-19 | 昆明理工大学 | A kind of garbage percolation liquid treating system |
| CN108929002A (en) * | 2018-09-03 | 2018-12-04 | 上海世渊环保科技有限公司 | A kind of reverse osmosis thick water treatment method of landfill leachate |
| CN109231713A (en) * | 2018-11-08 | 2019-01-18 | 浙江滨盛环境科技有限公司 | A kind of landfill leachate treatment Zero discharging system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11502322B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11502323B1 (en) | 2022-05-09 | 2022-11-15 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11563229B1 (en) | 2022-05-09 | 2023-01-24 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| US11611099B1 (en) | 2022-05-09 | 2023-03-21 | Rahul S Nana | Reverse electrodialysis cell and methods of use thereof |
| US11699803B1 (en) | 2022-05-09 | 2023-07-11 | Rahul S Nana | Reverse electrodialysis cell with heat pump |
| CN115286173A (en) * | 2022-06-17 | 2022-11-04 | 天津正达科技有限责任公司 | Acrylic acid and ester waste liquid recycling treatment system and process method |
| WO2023241696A1 (en) * | 2022-06-17 | 2023-12-21 | 天津正达科技有限责任公司 | Resourceful treatment system and process method for acrylic acid and ester waste liquid |
| US11855324B1 (en) | 2022-11-15 | 2023-12-26 | Rahul S. Nana | Reverse electrodialysis or pressure-retarded osmosis cell with heat pump |
| CN116514233A (en) * | 2023-06-20 | 2023-08-01 | 广州市振达环保产业股份有限公司 | Full quantification treatment device and treatment process for leachate of household garbage landfill |
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