Method and device for treating garbage percolate

A technology of landfill leachate and a treatment method, which is applied in the field of landfill leachate treatment, can solve problems such as pollution and threats to the health of surrounding people, and achieve the effects of solving environmental pollution problems, alleviating environmental pressure, and low operating costs.

Active Publication Date: 2009-12-09
汕头市澄海洁源垃圾发电厂有限公司
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Problems solved by technology

Therefore, the high-concentration leachate of urban life is a kind of high-concentration organic wastewater with complex components and serious pollutant indicators exceeding the standard. If it is directly discharged into the environment without treatment, it will cause serious pollution to the local surface water and groundwater environment, and affect the surrounding people. serious threat to the health of

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  • Method and device for treating garbage percolate
  • Method and device for treating garbage percolate

Examples

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Embodiment 1

[0024] Example 1. like figure 1 As shown, the landfill leachate is processed according to the following steps: a. Pretreatment, the landfill leachate from the waste storage pit is collected and then enters the primary sedimentation tank for precipitation. The leachate enters the primary sedimentation tank from the central pipe of the primary sedimentation tank. At the bottom of the tank, most of the impurities and sludge are deposited and then pumped back to the garbage storage pit by the sludge pump, which plays a role in reducing water quality and protecting the subsequent system (especially ultrafiltration). The clarified garbage leachate overflows to the regulating tank. Stay in the pool for 7 days to adjust and store the flow, which not only plays a role of homogenization, but also plays a buffer role for the rainy season or the maintenance of the treatment system;

[0025] b. Anaerobic treatment. The landfill leachate is lifted by the pump into the bottom of the reactor...

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Abstract

The invention discloses a method and a device for treating garbage percolate, wherein the method comprises the steps of pretreatment, anaerobic treatment, membrane biochemical treatment, nanofiltration treatment, sludge treatment and the like; the device comprises a primary sedimentation tank (1) and an adjusting tank (2), the adjusting tank (2) is connected with an anaerobic reactor (3), the anaerobic reactor (3) is connected with a denitrification tank (4), and the denitrification tank (4) is communicated with a nitrification tank (5); and the nitrification tank (5) is connected with an ultrafiltration apparatus (6), and the ultrafiltration apparatus (6) is connected with a nanofiltration device (7). The method and the device achieve COD degradation of high-concentration wastewater so that the COD of high-concentration COD of 50,000 reaches about 50 after treatment and reaches the standard of industrial reuse water, thus the method and the device achieve zero discharge of the percolate, initiate a new attempt to treat high-concentration percolate, and fill up the domestic blank.

Description

technical field [0001] The invention relates to a treatment method for landfill leachate and a treatment device for landfill leachate. Background technique [0002] At present, domestic waste disposal methods mainly include sanitary landfill, composting and incineration. Theoretically speaking, garbage composting is a very good way of recycling garbage, which can realize the reduction and harmlessness of garbage at the same time, but there are many specific problems in the production and promotion of garbage composting, and the cost of composting production is relatively high. high. Compared with composting and landfill, incineration technology has a better effect on waste reduction, recycling, and harmlessness. The amount of waste residue after incineration is small, and the heat generated by incineration can be used for power generation. The process of using waste incineration for power generation is also A certain amount of high-concentration leachate will be produced, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F11/12F23G7/00C02F3/30C02F1/44
Inventor 许瑞林
Owner 汕头市澄海洁源垃圾发电厂有限公司
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