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Treatment method for waste incineration power plant leachate and device thereof

A landfill leachate and waste incineration technology, which is applied in anaerobic digestion treatment, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of high power consumption, inability to enter the actual industrialization stage, and easy poisoning of catalysts. The effect of reducing floor space, small floor space and short process

Active Publication Date: 2012-11-28
NEWSKY CHINA ENVIRONMENT & TECH
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Problems solved by technology

[0014] In addition to the above-mentioned treatment methods, the current process research on leachate treatment also includes catalytic oxidation, wet oxidation, electro-oxidation, photo-oxidation, etc. These oxidation methods are either because the catalyst is easily poisoned, or because the power consumption is too large etc. are unable to enter the stage of actual industrialization

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  • Treatment method for waste incineration power plant leachate and device thereof

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Embodiment Construction

[0039] 1. Method

[0040] Such as figure 1 Shown, the present invention is a kind of waste incineration power plant leachate treatment method, and it comprises the following steps:

[0041] 1. The raw liquid of landfill leachate enters the raw water adjustment tank 1 to stabilize the water volume and water quality, so that the raw liquid of landfill leachate can be adjusted evenly, which plays a role of uniform quality and quantity, and prepares for the subsequent reaction;

[0042]2. Send the effluent leachate from the raw water adjustment tank 1 into the coagulation reaction system 2, and add a flocculant (quicklime polyferric chloride) to the coagulation reaction tank 21 of the coagulation reaction system 2 for flocculation reaction. After the reaction, it enters the coagulation reaction sedimentation tank 22, and the metal ions and suspended matter are separated out by the flocculation reaction;

[0043] 3. The effluent of the coagulation reaction sedimentation tank 22 (...

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Abstract

The invention discloses a treatment method for waste incineration power plant leachate and a device thereof. The waste leachate is put into a raw water regulation pool, a coagulation reaction system, a first-stage UBF reactor, a first-stage UBF reactor effluent middle pool, a second-stage UBF reactor, a second-stage UBF reactor effluent middle pool, a denitrification pool, a nitration pool, a built-in MBR system, and a nanofiltration system for processing. According to the invention, the UBF reactor effluent middle pools are arranged behind the UBF reactors for mud-water separation and backflow after the UBF reactor effluent, guaranteeing the mud concentration in the UBF reactors and treatment effeciency. Using a built-in MBR membrane module placed in a biochemical pool helps to reduce floor space and lower energy consumption. The use of physical and chemical, biochemical, and membrane filtration technology association for the direct treatment of waste leachate can reach recycling with zero emission.

Description

technical field [0001] The invention relates to a wastewater treatment technology, in particular to a method and device for treating leachate of a waste incineration power plant. Background technique [0002] Landfill leachate is a kind of difficult-to-treat high-concentration organic wastewater, which is characterized by large fluctuations in water quality and volume, complex components, and high content of toxic and harmful substances. The treatment of landfill leachate has become a major topic of environmental pollution control in my country at present and for a long time to come (Shen Huan, Jin Qiting, Cui Xiqin, et al. Experimental research on the treatment of urban landfill leachate by an upflow anaerobic sludge bed[J ]. Environmental Pollution Control Technology and Equipment, 2004, 5(4): 1-5). Its characteristics are (1) complex water quality components, including high-concentration organic pollutants, metals, inorganic salts, bacteria and other toxic and harmful sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F1/02C02F3/28C02F3/30C02F3/12
CPCY02W10/10
Inventor LI YINGWANG DEHONGZHANG CHUANJIANZHOU JUNDANGJI ZHEMAO ZHONGJIANWU YANQIN
Owner NEWSKY CHINA ENVIRONMENT & TECH
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