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Device for integrated deep treatment of landfill leachate and method

A technology for landfill leachate and advanced treatment, applied in chemical instruments and methods, oxidized water/sewage treatment, filtration treatment, etc., can solve the problems of secondary pollution and high cost, and achieve no secondary pollution, low cost, and treatment. stable effect

Inactive Publication Date: 2018-06-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problem that the existing landfill leachate treatment method has high cost and is easy to cause secondary pollution, and proposes an integrated device and method for advanced treatment of landfill leachate. The device and method have low investment cost, good treatment effect, Simple process

Method used

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  • Device for integrated deep treatment of landfill leachate and method
  • Device for integrated deep treatment of landfill leachate and method
  • Device for integrated deep treatment of landfill leachate and method

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specific Embodiment approach 1

[0026] Specific implementation mode 1: This implementation mode records an integrated device for advanced treatment of landfill leachate, including an oxidation device, a coagulation sedimentation tank and a filter tank, such as figure 1 with figure 2 As shown, the oxidizing device includes a water inlet pipeline 1, a dosing port 2, a tubular reactor 3 and a low-pressure mercury lamp 4, and the coagulation-sedimentation tank includes a coagulation-settling tank body, a coagulation agent dosing port 5. Stirring device 6, mud outlet 9 and inclined plate or inclined pipe 7; the filter includes a filter body and filter material 8 or filter layer 10;

[0027] The water inlet pipe 1 is communicated with one end of the tubular reactor 3, the other end of the tubular reactor 3 is connected with the feed port at one end of the coagulation sedimentation tank body, and the dosing port 2 is arranged at The upper part of the tubular reactor 3, the low-pressure mercury lamp 4 is arranged ...

specific Embodiment approach 2

[0029] Specific embodiment two: a kind of integrated deep treatment landfill leachate device described in specific embodiment one, described tubular reactor 3 material is quartz glass, described low-pressure mercury lamp 4 wavelength is 254nm, when sewage Oxidation reaction can be carried out when flowing through, and the boundary layer effect of the side wall of the pipeline can be used to realize rapid mixing and increase the reaction rate.

specific Embodiment approach 3

[0030] Specific embodiment three: a kind of integrated deep treatment landfill leachate device described in specific embodiment two, described filter material 8 is anthracite filter material or quartz sand filter material, described filter layer 10 is activated carbon fiber felt .

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Abstract

The invention relates to a device for integrated deep treatment of landfill leachate and a method and belongs to the field of sewage treatment. The device for the integrated deep treatment of the landfill leachate consists of an oxidation device, a coagulative precipitation tank and a filter tank, wherein the oxidation device comprises a water inlet pipeline, a dosing port, one group or multiple parallel groups of tubular reactors and a low-pressure mercury lamp, and the tubular reactors are arranged outside the coagulative precipitation tank or are integrated with the coagulative precipitation tank; the coagulative precipitation tank comprises a coagulation agent dosing port, a stirring device, a sloping plate or sloped tube and a sludge outlet; a replaceable removable filter material orfilter layer is arranged inside the filter tank. The device and the method have the beneficial effects that biochemical effluent of the landfill leachate serves as raw water and is subjected to deep treatment in an advanced oxidation process and coagulative precipitation and filtering manner, and thus, the quality of the effluent can reach emission standards of household refuse landfill pollutioncontrol standard (GB 16889-2008).

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an integrated advanced treatment device and method for landfill leachate. Background technique [0002] The water quality and quantity of landfill leachate vary greatly, the composition is more complex, and the treatment is difficult and harmful. It will have a great impact on the natural environment and human health. The treatment of landfill leachate is generally pretreated, followed by biochemical treatment, and finally advanced treatment and discharge. [0003] At present, the advanced treatment technology often used is membrane treatment technology and mainly reverse osmosis technology. Its treatment effect is better and the equipment is relatively mature. However, the concentrated solution produced after the reaction will cause secondary pollution, and the operating cost is high, so it is not suitable for application in In the current depth processing method. ...

Claims

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Application Information

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IPC IPC(8): C02F9/08C02F103/06
CPCC02F1/001C02F1/283C02F1/325C02F1/5245C02F1/5281C02F1/72C02F9/00C02F2103/06C02F2201/002C02F2201/322C02F2209/08
Inventor 王广智赵文莉王维业弋凡朱天琳赵庆良
Owner HARBIN INST OF TECH
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