CN113354214A - Landfill leachate treatment process for rural sanitation garbage transfer station - Google Patents
Landfill leachate treatment process for rural sanitation garbage transfer station Download PDFInfo
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- CN113354214A CN113354214A CN202110751434.5A CN202110751434A CN113354214A CN 113354214 A CN113354214 A CN 113354214A CN 202110751434 A CN202110751434 A CN 202110751434A CN 113354214 A CN113354214 A CN 113354214A
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- treatment
- sewage
- transfer station
- percolate
- 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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F9/00—Transferring of refuse between vehicles or containers with intermediate storage or pressing
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention provides a process for treating landfill leachate of a rural sanitation garbage transfer station, and relates to the technical field of leachate treatment. The treatment process of the landfill leachate of the rural and town sanitation garbage transfer station comprises the steps of pretreating a sewage station by adopting physicochemical treatment, carrying out secondary treatment by a biological treatment method, and finally carrying out advanced treatment combination process by the physicochemical treatment to realize standard discharge. The invention has good pertinence treatment measures, can ensure that the environment-friendly treatment of the garbage percolate of the rural and urban sanitation garbage transfer station is carried out, is suitable for carrying out high-efficiency and economic garbage percolate treatment measures of the rural and urban sanitation garbage transfer station, and has high actual garbage percolate treatment efficiency of the rural and urban sanitation garbage transfer station by adopting a good combined type technology method for treating the garbage percolate of the rural and urban sanitation garbage transfer station.
Description
Technical Field
The invention relates to the technical field of leachate treatment, in particular to a process for treating landfill leachate of a rural sanitation garbage transfer station.
Background
The treatment of leachate from municipal landfill sites has been a very difficult problem in the design, operation and management of landfill sites. Leachate is the product of the gravity flow of liquids in landfills and is primarily derived from precipitation and the inherent moisture content of the refuse itself. The properties of the percolate vary over a considerable range, since many factors in the flow of the liquid may influence the properties of the percolate, including physical, chemical and biological factors.
At present, when the treatment process of the landfill leachate of the rural sanitation garbage transfer station is in practical application, good targeted treatment measures are lacked, the efficient and economic treatment process of the landfill leachate of the rural sanitation garbage transfer station is suitable for being carried out while the environment-friendly treatment of the landfill leachate of the rural sanitation garbage transfer station cannot be ensured, and in addition, a good combined treatment process method of the landfill leachate of the rural sanitation garbage transfer station is lacked, so that the treatment efficiency of the landfill leachate of the actual rural sanitation garbage transfer station is not high.
Therefore, a new landfill leachate treatment process for a rural and town sanitation garbage transfer station is developed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a process for treating landfill leachate of a rural sanitation garbage transfer station, which solves the problems.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
s1, setting a network type garbage percolate collecting and conveying pipeline of a rural and town environmental sanitation garbage transfer station, setting a plurality of groups of pipelines into two groups of main flow directions, wherein one group of pipelines is communicated with pipelines of a municipal sewage plant and is used for discharging to the municipal sewage plant to combine treatment flow directions, the other group of pipelines is communicated with a sewage station collecting pipeline and is used for treating the flow directions of the sewage stations, and meanwhile, the garbage percolate collecting pipelines of the rural and town environmental sanitation garbage transfer station are provided with the same branch pipeline;
s2, when the garbage transfer station is close to a sewage plant, the economic burden of percolate transportation is small, the percolate can be intensively discharged into a conveying pipeline, the conveying pipeline is connected to pipelines of the urban sewage plant and is treated together with other sewage, so that the concentration of high pollutants in the percolate is greatly reduced, and finally the sewage plant performs harmless treatment;
s3, when the distance between the garbage transfer station and a sewage plant is far, the economic burden of percolate transportation is large, a sewage station is built nearby, percolate can be intensively discharged into a conveying pipeline and is connected to a sewage station collecting pipeline, and the percolate is discharged after being treated by the sewage station and reaching the standard, so that the effective treatment of the percolate is really realized, and the harm to the environment is minimum;
s4, when the garbage leachate amount of the garbage transfer station does not need to be treated immediately, the garbage leachate can be pretreated and then is merged into a municipal sewage treatment plant through a conveying pipeline for combined treatment, the treatment process is relatively simple, and meanwhile, the risk of the municipal sewage treatment plant is reduced;
and S5, when the quantity of the landfill leachate in the refuse transfer station is not large, the landfill leachate can be circularly sprayed to the landfill, the operation is simple and convenient, the treatment cost is lowest, the quantity of the leachate sprayed each time needs to be ensured, when the quantity of the leachate reaches a certain quantity, the leachate needs to be matched with a sewage station for final treatment, and the leachate can be used as an emergency treatment method of the leachate. Preferably, the ratio of the total amount of the components is set to be zero.
Preferably, the limited amount of the permeate which is introduced into the sewage treatment plant requires stable and reliable operation of the sewage treatment plant, and control of the concentration of the pollutants in the whole sewage treatment plant, and the amount of the high concentration of the permeate which is introduced is controlled to be 2% of the capacity of the sewage treatment plant.
Preferably, the sewage station adopts physical and chemical treatment for pretreatment, secondary treatment is carried out through a biological treatment method, and finally, the discharge reaching the standard is realized through a combined advanced treatment process through the physical and chemical treatment.
Preferably, the biological treatment method is used as a main process in the treatment process of the percolate, if the change of the BOD/COD value is less than 0.3, a proper pretreatment method is needed to be matched, the biological treatment method can be used only after the change of the BOD/COD value is more than 0.3, and when the change of the BBOD/COD value is more than 0.3, the biological treatment method can be directly used, namely, the biological treatment method is an anaerobic-aerobic combined process which comprises an anaerobic-aerobic biological oxidation process, an anaerobic oxidation ditch-facultative pond process, an anaerobic-air flotation-aerobic process and a UASB-oxidation ditch-stable pond.
Preferably, the physical and chemical treatment aims at large-particle impurities and can also deeply filter micron-sized or even nano-sized micro-particles, the physical and chemical treatment filters NH3-N and heavy metal ions in the leachate, and the main physical and chemical treatment methods comprise membrane treatment, chemical oxidation, adsorption, chemical precipitation, coagulation and the like.
(III) advantageous effects
The invention provides a process for treating landfill leachate of a rural and town sanitation garbage transfer station. The method has the following beneficial effects:
1. this rural and urban sanitation rubbish transfer station landfill leachate treatment process through possessing good pertinence treatment measure, can guarantee that rural and urban sanitation rubbish transfer station landfill leachate environmental protection handles the time, suitable rural and urban sanitation rubbish transfer station landfill leachate treatment measure who carries on high-efficient economy.
2. According to the process for treating the landfill leachate of the rural and urban sanitation garbage transfer station, the good combined type rural and urban sanitation garbage transfer station landfill leachate treatment process method is adopted, so that the actual treatment efficiency of the landfill leachate of the rural and urban sanitation garbage transfer station is high.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
embodiments of the invention provide
S1, setting a network type garbage percolate collecting and conveying pipeline of a rural and town environmental sanitation garbage transfer station, setting a plurality of groups of pipelines into two groups of main flow directions, wherein one group of pipelines is communicated with pipelines of a municipal sewage plant and is used for discharging to the municipal sewage plant to combine treatment flow directions, the other group of pipelines is communicated with a sewage station collecting pipeline and is used for treating the flow directions of the sewage stations, and meanwhile, the garbage percolate collecting pipelines of the rural and town environmental sanitation garbage transfer station are provided with the same branch pipeline;
s2, when the garbage transfer station is close to a sewage plant, the economic burden of percolate transportation is small, the percolate can be intensively discharged into a conveying pipeline, the conveying pipeline is connected to pipelines of the urban sewage plant and is treated together with other sewage, so that the concentration of high pollutants in the percolate is greatly reduced, and finally the sewage plant performs harmless treatment;
s3, when the distance between the garbage transfer station and a sewage plant is far, the economic burden of percolate transportation is large, a sewage station is built nearby, percolate can be intensively discharged into a conveying pipeline and is connected to a sewage station collecting pipeline, and the percolate is discharged after being treated by the sewage station and reaching the standard, so that the effective treatment of the percolate is really realized, and the harm to the environment is minimum;
s4, when the amount of the leachate of the garbage at the garbage transfer station does not need to be treated immediately, the leachate can be pretreated and then flows into the municipal sewage plant through a conveying pipeline to be treated in a combined manner, the treatment process is relatively simple, the risk of the municipal sewage plant is reduced, the leachate flowing into the sewage plant has limited degree, the sewage plant needs to be operated stably and reliably, the pollutant concentration of the sewage plant and the leachate of high-concentration harmful substances are controlled to be 2% of the capacity range of the sewage plant;
s5, when the quantity of the landfill leachate in the refuse transfer station is not large, the landfill leachate can be circularly sprayed to a landfill, the operation is simple and convenient, the treatment cost is lowest, the quantity of each spraying treatment needs to be ensured, when the penetrating fluid reaches a certain quantity, the penetrating fluid needs to be matched with a sewage station for final treatment, and the landfill leachate can be used as an emergency treatment method of the penetrating fluid.
Example two:
the sewage station adopts physicochemical treatment to carry out pretreatment work, carries out secondary treatment through a biological treatment method, finally carries out advanced treatment combined process through the physicochemical treatment to realize standard discharge, the biological treatment method is used as a main process in the treatment process of percolate, if the change of the BOD/COD value is less than 0.3, an appropriate pretreatment method is needed to be matched, the biological treatment method can be used for treatment until the change of the BOD/COD value is more than 0.3, when the change of the BBOD/COD value is more than 0.3, the biological treatment method can be directly used, namely, the biological treatment method comprises an anaerobic-aerobic biological oxidation process, an anaerobic-aerobic oxidation ditch-facultative pond process, an anaerobic-air flotation-aerobic process and a UASB-oxidation ditch-stable pond, the physicochemical treatment aims at large particle impurities and can also carry out advanced filtration on micron-level, even nano-scale micro particles are subjected to physical and chemical treatment to filter NH3-N and heavy metal ions in the leachate, the main physical and chemical treatment methods comprise membrane treatment, a chemical oxidation method, an adsorption method, a chemical precipitation and coagulation method and the like, and the actual treatment efficiency of the leachate of the rural and urban environmental sanitation garbage transfer station is high by adopting a good combined type rural and urban environmental sanitation garbage transfer station landfill leachate treatment process method.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A process for treating landfill leachate of a rural sanitation garbage transfer station is characterized by comprising the following steps: the method comprises the following specific steps:
s1, setting a network type garbage percolate collecting and conveying pipeline of a rural and town environmental sanitation garbage transfer station, setting a plurality of groups of pipelines into two groups of main flow directions, wherein one group of pipelines is communicated with pipelines of a municipal sewage plant and is used for discharging to the municipal sewage plant to combine treatment flow directions, the other group of pipelines is communicated with a sewage station collecting pipeline and is used for treating the flow directions of the sewage stations, and meanwhile, the garbage percolate collecting pipelines of the rural and town environmental sanitation garbage transfer station are provided with the same branch pipeline;
s2, when the garbage transfer station is close to a sewage plant, the economic burden of percolate transportation is small, the percolate can be intensively discharged into a conveying pipeline, the conveying pipeline is connected to pipelines of the urban sewage plant and is treated together with other sewage, so that the concentration of high pollutants in the percolate is greatly reduced, and finally the sewage plant performs harmless treatment;
s3, when the distance between the garbage transfer station and a sewage plant is far, the economic burden of percolate transportation is large, a sewage station is built nearby, percolate can be intensively discharged into a conveying pipeline and is connected to a sewage station collecting pipeline, and the percolate is discharged after being treated by the sewage station and reaching the standard, so that the effective treatment of the percolate is really realized, and the harm to the environment is minimum;
s4, when the garbage leachate amount of the garbage transfer station does not need to be treated immediately, the garbage leachate can be pretreated and then is merged into a municipal sewage treatment plant through a conveying pipeline for combined treatment, the treatment process is relatively simple, and meanwhile, the risk of the municipal sewage treatment plant is reduced;
and S5, when the quantity of the landfill leachate in the refuse transfer station is not large, the landfill leachate can be circularly sprayed to the landfill, the operation is simple and convenient, the treatment cost is lowest, the quantity of the leachate sprayed each time needs to be ensured, when the quantity of the leachate reaches a certain quantity, the leachate needs to be matched with a sewage station for final treatment, and the leachate can be used as an emergency treatment method of the leachate.
2. The process of claim 1, wherein the process comprises the steps of: the limited amount of the permeate to be delivered to the sewage treatment plant requires stable and reliable operation of the sewage treatment plant, and control of the concentration of the pollutants in the whole sewage treatment plant, and the input amount of the high-concentration permeate of the harmful substances is controlled to be 2% of the capacity range of the sewage treatment plant.
3. The process of claim 1, wherein the process comprises the steps of: the sewage station adopts physicochemical treatment for pretreatment, secondary treatment is carried out through a biological treatment method, and finally, the discharge reaching the standard is realized through a physicochemical treatment and advanced treatment combined process.
4. The process of claim 3, wherein the process comprises the steps of: the biological treatment method is used as a main process in the treatment process of the percolate, if the change of the BOD/COD value is less than 0.3, an appropriate pretreatment method is matched, the biological treatment method can be used for treatment after the change is more than 0.3, and when the change of the BBOD/COD value is more than 0.3, the biological treatment method can be directly used, namely, the biological treatment method is an anaerobic-aerobic combined process which comprises an anaerobic-aerobic biological oxidation process, an anaerobic oxidation ditch-facultative pond process, an anaerobic-air flotation-aerobic process and an UASB-oxidation ditch-stable pond.
5. The process of claim 3, wherein the physical and chemical treatment is carried out on large-particle impurities and micro-or nano-sized particles, and the physical and chemical treatment is carried out on NH3-N and heavy metal ions in the leachate, and the main physical and chemical treatment includes membrane treatment, chemical oxidation, adsorption, chemical precipitation and coagulation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110751434.5A CN113354214A (en) | 2021-07-02 | 2021-07-02 | Landfill leachate treatment process for rural sanitation garbage transfer station |
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| CN202110751434.5A CN113354214A (en) | 2021-07-02 | 2021-07-02 | Landfill leachate treatment process for rural sanitation garbage transfer station |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986551A (en) * | 2017-10-19 | 2018-05-04 | 辽宁海润环保技术股份有限公司 | A kind of processing method of leachate in garbage transfer station |
| CN108975641A (en) * | 2018-09-27 | 2018-12-11 | 山东理工大学 | A kind of processing method of rubbish leachate |
| CN110183038A (en) * | 2019-05-23 | 2019-08-30 | 江苏钰明集团有限公司 | A kind of garbage transfer station method for treating garbage percolation liquid |
| CN210175704U (en) * | 2019-04-10 | 2020-03-24 | 上海市政工程设计研究总院（集团）有限公司 | Underground combined construction structure of sewage treatment plant and garbage transfer station |
-
2021
- 2021-07-02 CN CN202110751434.5A patent/CN113354214A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986551A (en) * | 2017-10-19 | 2018-05-04 | 辽宁海润环保技术股份有限公司 | A kind of processing method of leachate in garbage transfer station |
| CN108975641A (en) * | 2018-09-27 | 2018-12-11 | 山东理工大学 | A kind of processing method of rubbish leachate |
| CN210175704U (en) * | 2019-04-10 | 2020-03-24 | 上海市政工程设计研究总院（集团）有限公司 | Underground combined construction structure of sewage treatment plant and garbage transfer station |
| CN110183038A (en) * | 2019-05-23 | 2019-08-30 | 江苏钰明集团有限公司 | A kind of garbage transfer station method for treating garbage percolation liquid |
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Application publication date: 20210907 |
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