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Concentration treatment system and concentration treatment method for landfill leachate

A technology of landfill leachate and treatment system, applied in the field of environmental protection wastewater treatment, can solve the problems of high pressure, low concentration efficiency and high energy consumption

Pending Publication Date: 2020-10-02
SHANGHAI LIMING RESOURCE REUSE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This process is carried out under high temperature and high pressure, which can maintain the original properties of the substance to a large extent, but the process needs to provide high pressure, high energy consumption and low concentration efficiency

Method used

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  • Concentration treatment system and concentration treatment method for landfill leachate

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Embodiment Construction

[0072] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0073] refer to figure 1 , a concentration treatment system for landfill leachate, comprising a leachate pretreatment device, a leachate separator 1, a negative pressure device, a first heating device, a second heating device, and a monitoring device, wherein: the first heating The device heats the leachate in the leachate separator 1; the second heating device preheats the leachate in the leachate pretreatment device; the negative pressure device provides negative pressure for the leachate separator 1; The leachate separator 1 separates the solute and water in its internal leachate under the action of a negative pressure device; the online monitoring device monitors the leachate temperature, conductivity, flow rate, liquid level, etc. Parameters are monitored and adjusted.

[0074] The leachate pretreatment device includes a stock solution tank 2, a stock ...

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Abstract

The invention discloses a concentration treatment system and a concentration treatment method for landfill leachate. The system comprises a stock solution box, a stock solution pump, a leachate separator, a first heating device, a negative pressure device and a concentrated solution collecting box, wherein the stock solution box, the stock solution pump and the leachate separator are sequentiallyconnected from upstream to downstream; the leachate separator is respectively connected with the stock solution pump, the negative pressure device and the concentrated solution collecting box; and thefirst heating device is arranged on the leachate separator and is used for heating leachate in the leachate separator, a percolation vaporization film is arranged in the leachate separator, and the percolation vaporization film is of a nanoscale film structure provided with a selective permeable water molecule channel. Aiming at enterprises with suitable waste heat resources, the negative pressure device is used for reducing the boiling point of water, the use threshold of the waste heat resources is reduced, and the percolation efficiency is improved by utilizing the characteristic that thepercolation vaporization film rapidly transfers water molecules in a thermodynamic state and cooperating with waste heat heating.

Description

technical field [0001] The invention relates to the field of environmental protection wastewater treatment, and more specifically, relates to a concentration treatment system and a concentration treatment method for landfill leachate. Background technique [0002] The landfill leachate comes from the moisture contained in the garbage itself in the landfill, the rain and snow water entering the landfill, and other moisture, after deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the high concentration formed by the garbage layer and the covering soil Wastewater has complex components, high pollutant content, large chroma, and strong toxicity. It is difficult to treat wastewater in the water treatment industry. If it is not disposed of properly, it will not only affect the quality of surface water, but also endanger the safety of groundwater. [0003] In order to avoid the hazards of landfill leachate, the industry will ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/06
CPCC02F1/001C02F1/08C02F1/16C02F2103/06
Inventor 华银锋张海涛陈卫华吴健杨念念唐聪
Owner SHANGHAI LIMING RESOURCE REUSE
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