Method and device for treating landfill leachate

A landfill leachate and treatment method technology, which is applied in the field of landfill leachate back-spraying method and its device, can solve the problems of frequent replacement and maintenance, large investment amount, etc., and achieve increased convective heat transfer effect, improved heat transfer effect, and evaporation capacity Improved effect

Active Publication Date: 2022-02-11
浙江欣源企业管理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this technology and device are effective for treating landfill leachate, there are also obvious shortcomings: first, the investment amount is large; second, replacement and maintenance are frequent. Usually, after half a year of use, the treatment capacity of the membrane begins to decline. It needs to be replaced in two years, and the single cost usually exceeds one million

Method used

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  • Method and device for treating landfill leachate
  • Method and device for treating landfill leachate
  • Method and device for treating landfill leachate

Examples

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Embodiment

[0030] Embodiment: A method for treating landfill leachate, fermenting the landfill leachate in an environment with a pH value of 7.0-7.6 and a temperature of 20-40°C. Since landfill leachate is acidic, sodium carbonate can be used to adjust the pH value. Sodium carbonate is less corrosive to the human body, less risk during transportation and use, and the neutralization reaction will not produce precipitation, and the generated carbon dioxide gas helps to ensure the low oxygen of the environment and improve the fermentation effect. Considering that the incinerator 16 takes heat conveniently, a medium-temperature fermenting flora of 20-40° C. is adopted to adapt to the situation that the amount of leachate is large and the temperature is high in summer. The fermentation time depends on the amount of landfill leachate, and generally changes seasonally. In summer, there is a lot of rain, a large amount of leachate, high temperature, and short fermentation time. On the one hand,...

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Abstract

The invention discloses a method and device for treating landfill leachate. The landfill leachate is fermented, filtered, and finally sprayed into the high-temperature area of ​​an incinerator in a hemispherical shape from both sides of the air inlet direction. The invention not only solves the leachate treatment problem, but also produces good economic benefits in practice. After the leachate is sprayed back, the load of the boiler increases obviously. Therefore, the present invention has the characteristics of environmental protection, good treatment effect and high economic benefit.

Description

technical field [0001] The invention relates to a method and device for treating landfill leachate, in particular to a method and device for backspraying landfill leachate. Background technique [0002] In many waste incineration plants at the present stage, the landfill leachate is generally treated by membrane technology for reverse osmosis treatment. Although this technology and device are effective for treating landfill leachate, there are also obvious shortcomings: first, the investment amount is large; second, replacement and maintenance are frequent. Usually, after half a year of use, the treatment capacity of the membrane begins to decline. It needs to be replaced in two years, and the single cost usually exceeds one million. When the amount of garbage increases or in summer, the amount of leachate will increase due to the increase of moisture in the garbage, and problems such as reverse osmosis not being able to deal with it in time may occur from time to time. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14F23G7/04C02F103/06
CPCC02F3/30C02F1/001F23G7/04C02F2103/06
Inventor 陈国强任建华薛军
Owner 浙江欣源企业管理有限公司
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