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Zero discharge recycle treatment method for garbage leachate

A technology for landfill leachate and a treatment method, applied in the field of wastewater treatment, can solve the problems of secondary pollution and low degradation ability, and achieve the effects of reducing treatment cost, high water production rate, and reducing ammonia nitrogen concentration

Inactive Publication Date: 2009-08-19
厦门凯瑞尔数字环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] From many research examples, it is difficult to treat the leachate to meet the relevant discharge standards by the process of neutralization and stripping-biochemical method. If ammonia is not recycled, it will cause secondary pollution

Method used

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Examples

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with embodiment.

[0036] The main equipment used in the present invention includes: raw water conditioning tank, membrane coagulation reactor, membrane contact reactor, upflow anaerobic biological (UASB) reactor, membrane bioreactor (MBR), continuous membrane filtration (CMF) systems, reverse osmosis (RO) systems and boilers, etc.

[0037] Among them, raw water conditioning tanks, upflow anaerobic biological (UASB) reactors and boilers are known common commodities. Membrane coagulation reactor can choose curtain-type polypropylene hollow fiber membrane, for example, choose the membrane of model HQM-MBR, the manufacturer is Hangzhou Zheda Hongquan Environmental Engineering Co., Ltd., the membrane pore size is 0.2 μm, and the molecular weight cut-off is ( 0.6-5) 10,000 Daltons, the water output is 1t / d, and the coagulant is polyaluminum sulfate with a concentration of 0.1-2.0mol / L. The membrane contac...

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Abstract

The invention discloses a refuse percolate zero discharge reclamation treatment method, and relates to the wastewater treatment technology. The invention provides a refuse percolate zero discharge reclamation treatment method. The method comprises the following steps: sending the raw liquor of the refuse percolate into a raw water regulation pond, removing the suspended solids and impurities in the outputted water through a membrane coagulation reactor, returning the outputted water to the raw water regulation tank through the back flushing of the membrane coagulation reactor, and sending the discharged wastewater into a membrane contact reactor to form a by product of an ammonium sulphate solution; sending the outputted water of the membrane contact reactor into an upwash type anaerobic bioreactor for the anaerobic biochemical treatment, and sending the outputted water of the upwash type anaerobic bioreactor into a membrane bioreactor for the aerobic biochemical treatment; sending the outputted water of the membrane bioreactor into a continuous membrane filtering system for filtration, and returning the concentrated liquor and back flushing water of the continuous membrane filtering system to the raw water regulation tank; and sending the outputted water of the continuous membrane filtering system into a reverse osmosis system, removing the concentrated liquor of the reverse osmosis system through boiler oxidation and torch firing, and obtaining the reclaimable pure water which is the outputted water of the reverse osmosis system.

Description

technical field [0001] The invention relates to a waste water treatment technology, in particular to a method for treating landfill leachate to achieve zero discharge and reuse. 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), in which the landfill leachate contains high ammonia nitrogen content and is more difficult to handle. At present, the research on the new technology of denitrification of leach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C01C1/24C02F1/44C02F1/52C02F3/30
Inventor 孔健林玉娇姜永华
Owner 厦门凯瑞尔数字环保科技有限公司
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