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Treatment method of garbage leachate

A landfill leachate and treatment method technology, which is applied in the field of landfill leachate treatment, can solve the problems of difficulty in landfill leachate treatment, reduction of various pollutants in leachate, refractory membrane retentate, etc., to achieve stable water output, The effect of low operating costs and low external environmental requirements

Active Publication Date: 2018-12-11
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Landfill leachate is high-concentration organic wastewater produced by sanitary landfill of domestic waste, which contains a large amount of heavy metals, bacteria, and persistent organic pollutants. Therefore, it is difficult to treat landfill leachate, and the current general treatment method for municipal engineering It is a biological method + physical separation technology. Although this method greatly reduces various pollutants in the leachate, it will also produce a large amount of high-concentration and difficult-to-degrade membrane retentate. If it is not handled properly, it will cause damage to the surrounding environment would cause serious harm

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  • Treatment method of garbage leachate

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Effect test

Embodiment 1

[0045] A treatment method for landfill leachate, comprising the following steps:

[0046] 1) Quasi-aerobic mineralized garbage bed treatment:

[0047] A1) filling of the quasi-aerobic mineralized garbage bed: the quasi-aerobic mineralized garbage bed is as follows figure 1 As shown, it includes: a reaction bed body, a mineralized garbage column is arranged in the reaction bed body, and the bottom of the reaction bed body is connected with a vent pipe; the mineralized garbage column is filled with garbage bodies. A pebble layer, a garbage body, a geotextile, a pebble layer, and a support plate are arranged respectively from top to bottom, and a perforated air guide tube is vertically penetrated through the center of the mineralized garbage column; the bottom end of the perforated air guide tube communicates with a horizontally arranged liquid guide tube; The loading capacity of the garbage body is 38-40kg, and the compacted density is 1030-1130kg / m 3 ; The garbage body is the...

Embodiment 2

[0058] A treatment method for landfill leachate, comprising the following steps:

[0059] 1) Quasi-aerobic mineralized garbage bed treatment:

[0060] A1) filling of the quasi-aerobic mineralized garbage bed: the quasi-aerobic mineralized garbage bed is as follows figure 1 As shown, it includes: a reaction bed body, a mineralized garbage column is arranged in the reaction bed body, and the bottom of the reaction bed body is connected with a vent pipe; the mineralized garbage column is filled with garbage bodies. A pebble layer, a garbage body, a geotextile, a pebble layer, and a support plate are arranged respectively from top to bottom, and a perforated air guide tube is vertically penetrated through the center of the mineralized garbage column; the bottom end of the perforated air guide tube communicates with a horizontally arranged liquid guide tube; The loading capacity of the garbage body is 38-40kg, and the compacted density is 1030-1130kg / m 3 ; The garbage body is the...

Embodiment 3

[0071] A treatment method for landfill leachate, comprising the following steps:

[0072] 1) Quasi-aerobic mineralized garbage bed treatment:

[0073] A1) filling of the quasi-aerobic mineralized garbage bed: the quasi-aerobic mineralized garbage bed is as follows figure 1 As shown, it includes: a reaction bed body, a mineralized garbage column is arranged in the reaction bed body, and the bottom of the reaction bed body is connected with a vent pipe; the mineralized garbage column is filled with garbage bodies. A pebble layer, a garbage body, a geotextile, a pebble layer, and a support plate are arranged respectively from top to bottom, and a perforated air guide tube is vertically penetrated through the center of the mineralized garbage column; the bottom end of the perforated air guide tube communicates with a horizontally arranged liquid guide tube; The loading capacity of the garbage body is 38-40kg, and the compacted density is 1030-1130kg / m 3 ; The garbage body is the...

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Abstract

The invention discloses a treatment method of garbage leachate. The treatment method comprises the following steps of (1) treatment of a semi-aerobic mineralized garbage bed, so as to obtain a leachate after treatment of the semi-aerobic mineralized garbage bed; (2) treatment by a coagulation method, so as to obtain the drained water after coagulation; (3) treatment by an advanced oxidation method: treating the drained water after coagulation in step (2) by an ozone oxidization method or a Fenton method. The treatment method has the characteristics that the operation is simple and convenient,the technology is simple, the cost is low, the requirement on outside environment is low, the treatment method is suitable for quick treatment of the garbage leachate, and the water drainage effect isbetter and stable; the final COD (chemical oxygen demand) and ammonia-nitrogen water drainage effects can reach the pollutant emission concentration limit in Standard for Pollutant Emission at Domestic Garbage Landfill (GB16889-2008), the concentrations of heavy metals, total nitrogen and total phosphor are certainly reduced, and the serious hazard to surrounding environments is avoided.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a treatment method for landfill leachate. Background technique [0002] Landfill leachate is high-concentration organic wastewater produced by sanitary landfill of domestic waste, which contains a large amount of heavy metals, bacteria, and persistent organic pollutants. Therefore, it is difficult to treat landfill leachate, and the current general treatment method for municipal engineering It is a biological method + physical separation technology. Although this method greatly reduces various pollutants in the leachate, it will also produce a large amount of high-concentration and difficult-to-degrade membrane retentate. If it is not handled properly, it will cause damage to the surrounding environment will cause serious harm. Contents of the invention [0003] In view of this, the application provides a treatment method for landfill leachate. The treatment ...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/06
CPCC02F1/001C02F1/52C02F1/5236C02F1/56C02F1/66C02F1/722C02F1/725C02F1/78C02F9/00C02F2001/007C02F2103/06C02F2301/08
Inventor 李启彬陈炜鸣刘丹刘建
Owner SOUTHWEST JIAOTONG UNIV
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