Percolate atomization evaporation technology

A technology of leachate and process, applied in the field of landfill leachate atomization and evaporation process, can solve the problems of long residence time, high treatment cost, difficult to meet water quality standards, etc. Effect

Active Publication Date: 2006-06-14
北京时代桃源环境科技股份有限公司
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Problems solved by technology

The existing landfill leachate treatment process generally has problems such as complex process, long residence time, high treatment cost, and difficult to meet the water quality after treatment, which will pollute surface water and groundwater

Method used

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  • Percolate atomization evaporation technology

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Embodiment Construction

[0013] The specific steps are as follows: firstly, the leachate stock solution or the leachate concentrated solution is preheated and atomized by the waste heat exchanger 4, and then sprayed into the flame area of ​​the evaporation chamber 1, using landfill gas or other fuels as energy sources, and burned by the burner. Incinerate the combustibles in the leachate in the flame zone while the water in the leachate evaporates in the evaporation chamber 1, so that the temperature of the mixed gas reaches 850±50°C; the mixed gas then enters the waste heat boiler 2, and the temperature of the mixed gas after heat exchange The temperature is lowered to 200-300°C; then the mixed gas enters the dust collector 3, the solid particles are removed and collected, and the water vapor is introduced into the leachate waste heat exchanger 4 to be condensed, collected or discharged.

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Abstract

The present invention relates to an economic, high-effective and energy-saving landfill yard percolation liquor atomization, combustion and evaporation process. It is characterized by that it uses the landfill gas as energy source, and utilizes the flame produced after the landfill gas is combusted by means of combustor and high-temperature smoke to directly and simultaneously incinerate the combustible substances in the atomized percolation liquor and evaporate water content in the atomized percolation liquor, then introduces the hot mixed tail gas into a waste-heat boiler to implement waste-heat reutilization, finally can condense and recover the aqueous vapour in the mixed gas.

Description

technical field [0001] The invention belongs to the technical field of waste treatment for environmental protection, and particularly designs a landfill leachate atomization evaporation process for landfill leachate, landfill leachate incineration plant leachate and high-concentration organic wastewater treatment. technical background [0002] Landfill disposal is an important part of solid waste management. For a complete solid waste management system, landfill is an indispensable key link. At present, the pollution control of landfills is still a weak link, and the treatment of landfill leachate has always been a difficult problem. Leachate not only has a large output and a high degree of pollution, but also has a wide range of water quality changes, not only with seasons, but also with landfill time and maturity of garbage. The existing landfill leachate treatment process generally has problems such as complicated process, long residence time, high treatment cost, and di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04
Inventor 杨军华黄亚昌宁显峰
Owner 北京时代桃源环境科技股份有限公司
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