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Advanced treatment system and method for high-concentration percolate in comprehensive garbage disposal plant

A comprehensive treatment and advanced treatment technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as pollution and inability to ensure stable effluent standards.

Inactive Publication Date: 2012-06-20
BEIJING YIPU INT WATER AFFAIRS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The embodiment of the present invention provides a system and method for advanced treatment of leachate in a comprehensive waste treatment field. Various processes that can treat leachate in landfills cannot guarantee that the effluent is stable and meet the standard, which will cause serious pollution problems; It can effectively treat the leachate of the garbage comprehensive treatment plant, so that the treated effluent can meet the corresponding discharge standards and avoid pollution

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  • Advanced treatment system and method for high-concentration percolate in comprehensive garbage disposal plant
  • Advanced treatment system and method for high-concentration percolate in comprehensive garbage disposal plant
  • Advanced treatment system and method for high-concentration percolate in comprehensive garbage disposal plant

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Embodiment 1

[0058] This embodiment provides a treatment system for the leachate of a comprehensive garbage disposal site, see figure 1 , the system includes: regulating tank (may include supporting auxiliary facilities), coagulation sedimentation tank, upflow anaerobic sludge bed reaction tank, primary anoxic and aerobic membrane bioreactor, advanced oxidation treatment equipment, secondary Anoxic and aerobic membrane bioreactor, nanofiltration membrane treatment equipment (NF), ozone contact tank and activated carbon filter tower, also including reverse osmosis membrane treatment equipment (RO) (rolled reverse osmosis membrane system can be used) and slaked lime mixed sedimentation pool;

[0059] Among them, regulating tank and auxiliary facilities, coagulation sedimentation tank, upflow anaerobic sludge bed reaction tank, first-level anoxic-aerobic membrane bioreactor, advanced oxidation treatment equipment, and second-level anoxic-aerobic membrane bioreactor , nanofiltration membrane ...

Embodiment 2

[0067] This embodiment provides a treatment method for the leachate of a comprehensive garbage disposal site. The treatment system provided in the above-mentioned embodiment 1 can be used to carry out advanced treatment of the leachate of a landfill or an incineration plant, such as figure 2 As shown, the method includes:

[0068] Conditioning treatment: Mix the treated landfill leachate evenly, so that the concentration of pollutants in the leachate after mixing is uniform, and carry out coagulation and sedimentation treatment on the effluent after the conditioning treatment;

[0069] Coagulation and sedimentation treatment: Coagulation treatment is carried out on the above-mentioned adjusted leachate. During the coagulation treatment process, coagulant and coagulant aid are added, and after coagulation treatment, precipitation is carried out to remove most of the suspended particles in the landfill leachate. , performing anaerobic biochemical treatment on the effluent after...

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Abstract

The invention discloses an advanced treatment system and method for high-concentration percolate in a comprehensive garbage disposal plant, belonging to the field of industrial waste water treatment. The system is formed by connecting a regulating tank, a coagulative precipitation tank, an upflow anaerobic sludge bed reaction tank, a primary anoxic and aerobic membrane bioreactor, advanced oxidation treatment equipment, a secondary anoxic and aerobic membrane bioreactor, nanofiltration membrane treatment equipment, an ozone contact tank and an active carbon filtering tower in sequence. According to the system, garbage percolate can be treated comprehensively, different pollutants in garbage percolate are treated in a classified way by combining physical, chemical and biological treatment,advanced treatment of garbage percolate is realized, and classified treatment for removing pollutants such as organic matters, heavy metals, ammonia, nitrogen and the like is performed, so that treated effluent strictly reaches the requirement of water pollution discharge degree limit in the Household Garbage Landfill Pollution Control Standard, the system runs stably for a long time, and treatment cost is lower than that of a secondary disc pipe reverse osmosis membrane process.

Description

technical field [0001] The invention relates to the treatment of landfill leachate in a comprehensive waste treatment field, and belongs to the field of industrial waste water treatment, in particular to an advanced treatment system and method for leachate in a comprehensive waste treatment field. Background technique [0002] There are not many treatment processes that can meet my country's current landfill leachate discharge standards, mainly as follows: [0003] (1) Deamination-UASB-SBR-microfiltration / ultrafiltration-RO reverse osmosis membrane; [0004] (2) UASB-A / O MBR-NF nanofiltration-RO reverse osmosis membrane; [0005] (3) Microfiltration - two-stage disc reverse osmosis membrane (DT-RO); [0006] In the above process (1), the removal of ammonia nitrogen by the physical and chemical method of the deamination tower will bring a series of problems, mainly due to the secondary pollution of ammonia nitrogen caused by the deamination tower, the absorption liquid cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 吴迪文一波李天增姜安平田芳陈长松杨永杰
Owner BEIJING YIPU INT WATER AFFAIRS
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