Landfill leachate treatment process

A technology of landfill leachate and treatment process, applied in the field of high-concentration organic wastewater treatment, can solve the problem that the treatment process cannot meet the national sewage discharge standard and other problems

Inactive Publication Date: 2012-06-27
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a treatment process for landfill leachate in view of the shortcomings that the existing treatment process cannot meet the national sewage discharge standard, which can realize the advanced treatment of landfill leachate and meet the requirements of national standard discharge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: this landfill leachate treatment process, concrete operation is as follows:

[0028] (1) Collect the landfill leachate and enter the primary sedimentation tank for sedimentation, so that most of the impurities and sludge in it are precipitated, and then the sewage enters the adjustment tank for 5 days to adjust the water quality and water quantity.

[0029] (2) Pump the landfill leachate from the adjustment tank into the distribution tank, and then distribute the water through the distribution tank into the upflow anaerobic sludge bed (UASB) reactor for anaerobic reaction, and the generated biogas, sewage and sludge pass through The three-phase separator on the upper part of the anaerobic reactor is separated, the biogas is discharged through the gas collection chamber, the sewage containing sludge enters the settling area, and the sludge with good settling performance settles to the sludge bed of the anaerobic reactor, and the sewage containing a small amo...

Embodiment 2

[0036] Embodiment 2: this landfill leachate treatment process, concrete operation is as follows:

[0037] (1) Collect the landfill leachate and enter the primary sedimentation tank for sedimentation, so that most of the impurities and sludge in it are precipitated, and then the sewage enters the adjustment tank for 10 days to adjust the water quality and water quantity.

[0038] (2) Pump the landfill leachate from the adjustment tank into the distribution tank, and then distribute the water through the distribution tank into the upflow anaerobic sludge bed (UASB) reactor for anaerobic reaction, and the generated biogas, sewage and sludge pass through The three-phase separator on the upper part of the anaerobic reactor is separated, the biogas is discharged through the gas collection chamber, the sewage containing sludge enters the settling area, and the sludge with good settling performance settles to the sludge bed of the anaerobic reactor, and the sewage containing a small am...

Embodiment 3

[0046] Embodiment 3: this landfill leachate treatment process, concrete operation is as follows:

[0047] (1) Collect the landfill leachate and enter the primary sedimentation tank for sedimentation, so that most of the impurities and sludge in it are precipitated, and then the sewage enters the adjustment tank for 8 days to adjust the water quality and water quantity.

[0048] (2) Pump the landfill leachate from the adjustment tank into the distribution tank, and then distribute the water through the distribution tank into the upflow anaerobic sludge bed (UASB) reactor for anaerobic reaction, and the generated biogas, sewage and sludge pass through The three-phase separator on the upper part of the anaerobic reactor is separated, the biogas is discharged through the gas collection chamber, the sewage containing sludge enters the settling area, and the sludge with good settling performance settles to the sludge bed of the anaerobic reactor, and the sewage containing a small amo...

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Abstract

The present invention discloses a landfill leachate treatment process, which belongs to the high concentration organic wastewater treatment field, the treatment process comprises the following steps of pretreatment, anaerobic treatment, aerobic treatment, aquatic organisms pond treatment, sludge treatment and the like. The process of the present invention has the advantages of simple operation, obvious economic effect and significant treatment effect, and the effective removal of COD, total nitrogen, total phosphorus and heavy metal ions in the high concentration organic wastewater can be realized.

Description

technical field [0001] The invention relates to a process for treating landfill leachate, which belongs to the field of high-concentration organic wastewater treatment. Background technique [0002] In recent years, with the acceleration of industrialization and urbanization in our country, urban waste has also increased rapidly. At present, domestic waste disposal methods mainly include sanitary landfill, composting and incineration. In theory, garbage composting is a very good way of recycling garbage. From the point of view of purification, greening and beautification of the whole city, organic fertilizer plays an increasingly important role in urban greening and basic construction of farmland. From an economic point of view, the production process of compost is the process of turning domestic waste into treasure, and compost products support agricultural production. However, there are many problems in the production and popularization of garbage composting, and the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 黄秋香张梅刘自莲
Owner KUNMING UNIV OF SCI & TECH
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