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Garbage percolate processing technology

A landfill leachate and treatment process technology, applied in the field of landfill leachate treatment process, can solve the problems of high continuous operation cost, high cost, repeated investment and construction, etc., achieve low comprehensive investment and operation cost, improve COD removal effect, The effect of increasing the conversion rate of ammonia nitrogen

Active Publication Date: 2012-12-05
湖北科亮生物环保科技有限公司
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Problems solved by technology

[0004] Among the many troublesome factors of leachate treatment, the lack of suitable treatment technology is the most important factor. For example, the treatment facilities invested and constructed in the initial stage of some landfills cannot adapt to the changes in water quality of landfills in the middle and late stages and gradually fail to achieve the treatment effect. Shutdown; there are also some landfills that invest in and construct treatment facilities with complex operation and high cost, and it is difficult to support continuous normal operation economically; there is no suitable treatment technology, which leads to high continuous operation costs and the need for repeated investment in construction, etc. Major Factors for Disposal

Method used

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 As shown, the present embodiment provides a landfill leachate treatment process, which includes the following steps in turn:

[0031] (1) The leachate flows into the regulating tank, where the water quantity and quality of the wastewater are regulated, and a considerable part of COD and ammonia nitrogen is degraded;

[0032] (2) The wastewater from the adjustment tank is pumped into the coagulation and sedimentation equipment. In this equipment, the wastewater is first adjusted to about PH4, and the coagulant is added and mixed evenly, and then sedimentation and slag are carried out in the sedimentation area. Suspended and colloidal organic matter is taken away by sediment and scum, and the chromaticity is greatly reduced;

[0033] (3) The coagulation effluent flows into the iron-carbon micro-electrolysis equipment and the form...

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Abstract

The invention relates to the technical field of sewage processing, and provides a garbage percolate processing technology. The technology comprises steps of coagulative precipitation, advanced catalytic oxidation, ammonia nitrogen stripping, combined biochemical processing, and the like. With the technology provided by the invention, ammonia nitrogen transformation rate and COD removing effect are greatly improved, garbage percolates at different stages can be effectively processed, and the processed percolates can all satisfy a discharge standard.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a landfill leachate treatment process. Background technique [0002] With the rapid development of the economy and the advancement of urbanization, the amount of urban domestic waste has also increased rapidly year by year. The leachate of domestic waste landfills is the main pollution generated by landfills. Landfill leachate has the following two main characteristics: 1. 1. The concentration of organic pollutants in the leachate is high, and the COD of some leachates is as high as tens of thousands of mg / L, the chroma is relatively high, and it emits a certain odor. The ammonia nitrogen can reach several thousand mg / L, and generally contains high concentrations of heavy metals Class substances; and have a relatively high salt content, more pathogenic microorganisms. The biodegradability of landfill leachate in the middle and later stages is poor, and BOD / COD is genera...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 王洪炎王吉松
Owner 湖北科亮生物环保科技有限公司
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