CN112645547A - Sewage treatment process and system for refuse landfill - Google Patents
Sewage treatment process and system for refuse landfill Download PDFInfo
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- CN112645547A CN112645547A CN202110069217.8A CN202110069217A CN112645547A CN 112645547 A CN112645547 A CN 112645547A CN 202110069217 A CN202110069217 A CN 202110069217A CN 112645547 A CN112645547 A CN 112645547A
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- 238000005189 flocculation Methods 0.000 claims abstract description 26
- 230000016615 flocculation Effects 0.000 claims abstract description 26
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000007599 discharging 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
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- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000011777 magnesium Substances 0.000 claims abstract description 5
- 229910052749 magnesium Inorganic materials 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
- 230000035484 reaction time Effects 0.000 claims abstract description 5
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5254—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using magnesium compounds and phosphoric acid for removing ammonia
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F2001/5218—Crystallization
-
- 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
- C02F3/02—Aerobic processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a sewage treatment process of a refuse landfill, which comprises the following specific steps: (1) the sewage treatment method comprises the steps of (1) introducing sewage into a grid filtering tank, intercepting large pollutants in the sewage, (2) discharging the sewage passing through the grid filtering tank into an adjusting tank, wherein the sewage stays for 24 hours in the adjusting tank, and (3) discharging the sewage in the adjusting tank into a flocculation sedimentation tank through a submersible sewage pump arranged in the adjusting tank, wherein the flocculation sedimentation tank is internally provided with a stirring mechanism. The invention is provided with a crystallization sedimentation tank for removing ammonia nitrogen pollution in sewage, the crystallization sedimentation method has the advantages that the reaction is not interfered by toxic substances, the reaction condition is simple, the land resource is saved, the crystallization sedimentation method is matched with the set heating temperature of 25-35 ℃, the PH value of the sewage is adjusted to 10, and the quantity ratio of magnesium, nitrogen and phosphorus is 1.2: 1:1.2, the reaction time is 15-20min, and the ammonia nitrogen pollution in the sewage can be efficiently removed.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage treatment process and a sewage treatment system for a refuse landfill.
Background
Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is also increasingly carried into daily life of common people, and is classified according to sewage sources, and sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. The production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like, and the domestic sewage is sewage generated in daily life, and refers to complex mixtures of various forms of inorganic matters and organic matters, and comprises the following steps: floating and suspended large and small solid particles; ② colloidal and gelatinous dispersions; ③ pure solution, according to the nature of water pollution, there are two types of water pollution: one is natural pollution; the other is artificial pollution, and the current water body is greatly damaged by the artificial pollution. Water pollution can be mainly classified into chemical pollution, physical pollution and biological pollution according to different pollution impurities. The pollutants are mainly: the method comprises the steps of discharging the untreated industrial wastewater; domestic sewage discharged without treatment; the farmland sewage with a large amount of fertilizer, pesticide and herbicide is used; fourthly, industrial waste and household garbage stacked beside a river are obtained; fifthly, water and soil loss; sixthly, mine sewage.
In the process of generating sewage in a landfill site, because a large amount of pollutants in garbage and generated after the garbage is degraded enter landfill leachate through the actions of dissolution, leaching and the like, the concentration of the pollutants in the landfill leachate is extremely high, the components are complex, the concentration of organic pollutants in the landfill leachate is high, the content of ammonia nitrogen is high, the landfill leachate is generally black brown and contains a plurality of organic pollutants, and therefore, the landfill sewage containing a large amount of pollutants can seriously pollute the surrounding environment, not only pollute underground water, surface water sources and soil, but also endanger the survival of surrounding animals and plants, and further threaten the body health of the masses of people. Therefore, landfill sewage must be effectively treated to minimize its environmental impact.
Disclosure of Invention
The invention aims to provide a sewage treatment process and a sewage treatment system for a refuse landfill to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a sewage treatment process of a refuse landfill comprises the following specific steps:
(1) introducing the sewage into a grating filter tank to intercept larger pollutants in the sewage;
(2) discharging the sewage passing through the grating filtering tank into an adjusting tank, and staying the sewage in the adjusting tank for 24 hours;
(3) discharging sewage in the regulating tank into a flocculation sedimentation tank through a submersible sewage pump arranged in the regulating tank, wherein a stirring mechanism is arranged in the flocculation sedimentation tank and is used for stirring and mixing an additive added into the flocculation sedimentation tank with the sewage;
(4) discharging the water in the flocculation tank into a crystallization and precipitation tank, and adding a precipitating agent MgCl into the crystallization and precipitation tank2And Na2HPO4And NH4React to form MgNH4PO46H2O precipitates to realize getting rid of ammonia nitrogen from waste water and polluting, before the reaction, need heat sewage, control heating temperature is 25-35 degrees centigrade, adjusts the pH value of sewage and is 10, and the volume ratio of magnesium, nitrogen, phosphorus is 1.2: 1:1.2, and the reaction time is 15-20 min;
(5) the sewage treated by the crystallization sedimentation tank flows into a PH regulating tank, is added with acid and then is pumped into a UASB anaerobic reactor under the action of a pressure pump in the PH regulating tank to remove COD in the watercrAnd BOD5；
(6) Introducing the sewage after passing through the UASB anaerobic reactor into an air floatation tank, scraping foam suspended matters floating on the water surface to a sludge tank through a sludge scraper arranged in the air floatation tank, and then flowing out;
(7) the water passing through the air floatation tank passes through the biological aerated filter and the easy-to-hang membrane particle filter material filled in the biological aerated filter to provide a carrier for the growth of the biological membrane, organic matters in the sewage and the biological membrane on the surface of the filler are degraded through biochemical reaction, the filler simultaneously plays a role in physical filtration, and the sewage treated by the air floatation tank can reach the standard for discharge.
As a further scheme of the invention:
the grating in the grating filter tank adopts a mechanical grating, the gap between grating bars is 8mm, the inclination is 70 degrees, and the intercepted substances on the grating are removed mechanically.
As a still further scheme of the invention:
and (3) a bubble generator is arranged in the regulating tank in the step (2), bubbles are generated by the bubble generator and stirred to achieve the effect of stirring and mixing the water quality uniformly, the dissolved oxygen in the water is sufficient, partial organic matters are degraded, and the load of subsequent treatment is reduced.
As a still further scheme of the invention:
the sewage flows into the UASB anaerobic reactor for a retention time of 110 h.
As a still further scheme of the invention:
sludge generated in the flocculation tank, the crystallization sedimentation tank and the biological aerated filter is pumped into the sludge concentration tank for natural concentration under the action of a sludge pump, then the concentrated sludge is input into the sludge dewatering machine for dewatering, and finally the dewatered sludge is buried.
As a still further scheme of the invention:
the sludge dewatering machine adopts a belt type filter press to dewater sludge, and the produced sewage is conveyed into a regulating tank to be treated.
The utility model provides a sewage treatment system of landfill, includes grid filtering ponds, equalizing basin, flocculation and precipitation pond, crystallization and precipitation pond, PH equalizing basin, UASB anaerobic generator, air supporting pond and bological aerated filter, grid filtering ponds, equalizing basin, flocculation and precipitation pond, crystallization and precipitation pond and PH equalizing basin loop through the pipeline and are connected, and are provided with the solenoid valve on the pipeline, the PH equalizing basin is connected with UASB anaerobic generator through the pipe, and is provided with the force (forcing) pump on the pipe, UASB anaerobic generator, air supporting pond and bological aerated filter loop through the pipe and are connected
As a still further scheme of the invention:
the sludge treatment device is characterized by further comprising a sludge concentration tank and a belt type filter press, wherein sludge discharge ports formed in the lower layers of the flocculation tank, the crystallization sedimentation tank and the biological aerated filter are in conduction connection with the sludge concentration tank, a sludge pump is arranged for conveying sludge, and the belt type filter press is used for dewatering the sludge concentrated in the sludge concentration tank.
Compared with the prior art, the invention has the beneficial effects that:
(1) compared with the traditional blowing-off method, the break-point chlorination method, the biological nitrification and denitrification method and the ion exchange method, the crystallization sedimentation method has the advantages that the reaction is not interfered by toxic substances, the reaction condition is simple, the land resources are saved, the crystallization sedimentation method is matched with the set heating temperature of 25-35 ℃, the PH value of the sewage is adjusted to 10, and the quantity ratio of magnesium, nitrogen and phosphorus is 1.2: 1:1.2, the reaction time is 15-20min, the ammonia nitrogen pollution in the sewage can be efficiently removed, and the removal efficiency is high.
(2) According to the sewage treatment process and system for the refuse landfill, provided by the invention, the easy-to-membrane-hanging granular filter material is filled in the aeration biological filter tank to provide a carrier for growth of a biological membrane, organic matters in the sewage and the biological membrane on the surface of the filler are degraded through biochemical reaction, the filler simultaneously plays a role in physical filtration to improve the filtration effect, the bubble generator is arranged in the regulating tank, the bubble generator generates bubbles to stir and mix the bubbles to achieve the effect of stirring and mixing uniform water quality, the sufficient dissolved oxygen in the water is realized, part of the organic matters are degraded, the load of subsequent treatment is reduced, compared with the traditional method that stirring equipment is adopted to perform uniform water quality, the function of the regulating tank is increased, and the use effect of the regulating tank is improved.
Drawings
FIG. 1 is a process diagram of the present invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1, a sewage treatment process of a refuse landfill specifically comprises the following steps:
(1) introducing the sewage into a grating filter tank to intercept larger pollutants in the sewage;
(2) discharging the sewage passing through the grating filtering tank into an adjusting tank, and staying the sewage in the adjusting tank for 24 hours;
(3) discharging sewage in the regulating tank into a flocculation sedimentation tank through a submersible sewage pump arranged in the regulating tank, wherein a stirring mechanism is arranged in the flocculation sedimentation tank and is used for stirring and mixing an additive added into the flocculation sedimentation tank with the sewage;
(4) discharging the water in the flocculation tank into a crystallization and precipitation tank, and adding a precipitating agent MgCl into the crystallization and precipitation tank2And Na2HPO4And NH4React to form MgNH4PO46H2O precipitates to realize getting rid of ammonia nitrogen from waste water and polluting, before the reaction, need heat sewage, control heating temperature is 25-35 degrees centigrade, adjusts the pH value of sewage and is 10, and the volume ratio of magnesium, nitrogen, phosphorus is 1.2: 1:1.2, and the reaction time is 15-20 min;
(5) the sewage treated by the crystallization sedimentation tank flows into a PH regulating tank, is added with acid and then is pumped into a UASB anaerobic reactor under the action of a pressure pump in the PH regulating tank to remove COD in the watercrAnd BOD5；
(6) Introducing the sewage after passing through the UASB anaerobic reactor into an air floatation tank, scraping foam suspended matters floating on the water surface to a sludge tank through a sludge scraper arranged in the air floatation tank, and then flowing out;
(7) the water passing through the air floatation tank passes through the biological aerated filter and the easy-to-hang membrane particle filter material filled in the biological aerated filter to provide a carrier for the growth of the biological membrane, organic matters in the sewage and the biological membrane on the surface of the filler are degraded through biochemical reaction, the filler simultaneously plays a role in physical filtration, and the sewage treated by the air floatation tank can reach the standard for discharge.
The grating in the grating filter tank adopts a mechanical grating, the gap between grating bars is 8mm, the inclination is 70 degrees, and the intercepted substances on the grating are removed mechanically.
And (3) a bubble generator is arranged in the regulating tank in the step (2), bubbles are generated by the bubble generator and stirred to achieve the effect of stirring and mixing the water uniformly, the dissolved oxygen in the water is sufficient, partial organic matters are degraded, and the load of subsequent treatment is reduced.
The sewage flows into the UASB anaerobic reactor for a retention time of 110 h.
Sludge generated in the flocculation tank, the crystallization sedimentation tank and the biological aerated filter is pumped into the sludge concentration tank for natural concentration under the action of a sludge pump, then the concentrated sludge is input into a sludge dewatering machine for dewatering, and finally the dewatered sludge is buried.
The sludge dewatering machine adopts a belt type filter press to dewater sludge, and the produced sewage is conveyed into a regulating tank to be treated.
The utility model provides a sewage treatment system of landfill, includes grid filtering ponds, equalizing basin, flocculation and precipitation pond, crystallization and precipitation pond, PH equalizing basin, UASB anaerobic generator, air supporting pond and bological aerated filter, grid filtering ponds, equalizing basin, flocculation and precipitation pond, crystallization and precipitation pond and PH equalizing basin loop through the pipeline and are connected, and are provided with the solenoid valve on the pipeline, the PH equalizing basin is connected with UASB anaerobic generator through the pipe, and is provided with the force (forcing) pump on the pipe, UASB anaerobic generator, air supporting pond and bological aerated filter loop through the pipe and are connected.
The sludge treatment device is characterized by further comprising a sludge concentration tank and a belt type filter press, wherein sludge discharge ports formed in the lower layers of the flocculation tank, the crystallization sedimentation tank and the biological aerated filter are in conduction connection with the sludge concentration tank, a sludge pump is arranged for conveying sludge, and the belt type filter press is used for dewatering the sludge concentrated in the sludge concentration tank.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (8)
1. A sewage treatment process of a refuse landfill is characterized by comprising the following specific steps:
(1) introducing the sewage into a grating filter tank to intercept larger pollutants in the sewage;
(2) discharging the sewage passing through the grating filtering tank into an adjusting tank, and staying the sewage in the adjusting tank for 24 hours;
(3) discharging sewage in the regulating tank into a flocculation sedimentation tank through a submersible sewage pump arranged in the regulating tank, wherein a stirring mechanism is arranged in the flocculation sedimentation tank and is used for stirring and mixing an additive added into the flocculation sedimentation tank with the sewage;
(4) discharging the water in the flocculation tank into a crystallization and precipitation tank, and adding a precipitating agent MgCl into the crystallization and precipitation tank2And Na2HPO4And NH4React to form MgNH4PO46H2O precipitates to realize getting rid of ammonia nitrogen from waste water and polluting, before the reaction, need heat sewage, control heating temperature is 25-35 degrees centigrade, adjusts the pH value of sewage and is 10, and the volume ratio of magnesium, nitrogen, phosphorus is 1.2: 1:1.2, and the reaction time is 15-20 min;
(5) the sewage treated by the crystallization sedimentation tank flows into a PH regulating tank, is added with acid and then is pumped into a UASB anaerobic reactor under the action of a pressure pump in the PH regulating tank to remove COD in the watercrAnd BOD5；
(6) Introducing the sewage after passing through the UASB anaerobic reactor into an air floatation tank, scraping foam suspended matters floating on the water surface to a sludge tank through a sludge scraper arranged in the air floatation tank, and then flowing out;
(7) the water passing through the air floatation tank passes through the biological aerated filter and the easy-to-hang membrane particle filter material filled in the biological aerated filter to provide a carrier for the growth of the biological membrane, organic matters in the sewage and the biological membrane on the surface of the filler are degraded through biochemical reaction, the filler simultaneously plays a role in physical filtration, and the sewage treated by the air floatation tank can reach the standard for discharge.
2. The sewage treatment process of the refuse landfill according to claim 1, wherein the grating in the grating filter tank adopts a mechanical grating, the gap of the grating is 8mm, the inclination is 70 degrees, and the intercepted matters on the grating are removed mechanically.
3. The sewage treatment process of the refuse landfill according to claim 1, wherein the adjusting tank in the step (2) is provided with a bubble generator, bubbles are generated by the bubble generator and stirred to achieve the effect of stirring and mixing the water quality uniformly, the dissolved oxygen in the water is sufficient, partial organic matters are degraded, and the load of subsequent treatment is reduced.
4. The sewage treatment process of the refuse landfill according to claim 1, wherein the sewage flows into the UASB anaerobic reactor for a retention time of 110 h.
5. The sewage treatment process of the refuse landfill according to claim 1, wherein the sludge generated in the flocculation tank, the crystallization sedimentation tank and the biological aerated filter is pumped into the sludge concentration tank for natural concentration under the action of the sludge pump, then the concentrated sludge is input into the sludge dewatering machine for dewatering, and finally the dewatered sludge is buried.
6. The process of claim 5, wherein the sludge dewatering machine is a belt press filter to dewater sludge, and the produced sewage is transported to the conditioning tank for treatment.
7. The sewage treatment system of the refuse landfill prepared by adopting the sewage treatment process of the refuse landfill according to the claims 1 to 6 is characterized by comprising a grating filter tank, an adjusting tank, a flocculation sedimentation tank, a crystallization sedimentation tank, a PH adjusting tank, an UASB anaerobic generator, an air floatation tank and an aeration biological filter tank, wherein the grating filter tank, the adjusting tank, the flocculation sedimentation tank, the crystallization sedimentation tank and the PH adjusting tank are sequentially connected through a pipeline, the pipeline is provided with an electromagnetic valve, the PH adjusting tank is connected with the UASB anaerobic generator through a conduit, and the conduit is provided with a pressure filter tank, and the UASB anaerobic generator, the air floatation tank and the aeration biological filter tank are sequentially connected through the conduit.
8. The sewage disposal system for refuse landfill according to claim 7, further comprising a sludge concentration tank and a belt filter press, wherein the sludge discharge ports of the lower layers of the flocculation tank, the crystallization sedimentation tank and the biological aerated filter are all in conduction connection with the sludge concentration tank, a sludge pump is provided for conveying the sludge, and the belt filter press is used for dewatering the sludge concentrated in the sludge concentration tank.
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| CN202110069217.8A CN112645547A (en) | 2021-01-19 | 2021-01-19 | Sewage treatment process and system for refuse landfill |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209885A (en) * | 2006-12-29 | 2008-07-02 | 中国市政工程华北设计研究院 | Wastewater treatment method of garbage leachate |
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN107055963A (en) * | 2017-04-26 | 2017-08-18 | 湖南净源环境工程有限公司 | The efficient advanced treatment apparatus of percolate and processing method |
| CN212293239U (en) * | 2020-07-31 | 2021-01-05 | 中节能工程技术研究院有限公司 | Leachate treatment system for waste incineration plant |
-
2021
- 2021-01-19 CN CN202110069217.8A patent/CN112645547A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209885A (en) * | 2006-12-29 | 2008-07-02 | 中国市政工程华北设计研究院 | Wastewater treatment method of garbage leachate |
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN107055963A (en) * | 2017-04-26 | 2017-08-18 | 湖南净源环境工程有限公司 | The efficient advanced treatment apparatus of percolate and processing method |
| CN212293239U (en) * | 2020-07-31 | 2021-01-05 | 中节能工程技术研究院有限公司 | Leachate treatment system for waste incineration plant |
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Application publication date: 20210413 |