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Method for treating polluted water body in lake

A treatment method and technology for water bodies, applied in the field of treatment of polluted lake water bodies, can solve the problems of COD reduction, high cost, secondary pollution, etc.

Inactive Publication Date: 2012-01-25
DONGGUAN SHENGYUAN ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] 1. Dredging is used to control sediment pollution, but the cost is high and secondary pollution is formed;
[0007] 2. Pure oxygen aeration is mainly used to reduce sulfide and COD (chemical oxygen demand), which can moderately improve water quality, but it is costly and consumes a lot of energy;

Method used

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  • Method for treating polluted water body in lake
  • Method for treating polluted water body in lake
  • Method for treating polluted water body in lake

Examples

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Effect test

Embodiment 1

[0052] Example 1: Treatment of Landscape Lake of Dongguan Institute of Technology

[0053] Landscape Lake of Dongguan Institute of Technology, located in Dongguan Institute of Technology, with a total water volume of 3400m 3 , the lake water was yellowish-brown before the treatment, the lake water transparency was low, and had peculiar smell, and some indicators met the V-class standard for surface water inferiority.

[0054] According to the water quality and water quantity characteristics of the lake, after investigation and analysis, the lake water was treated with the technology of compound microbial bacterial agent treatment of lake water starting from May 1, 2008. A large amount of high-concentration composite bacterial agents are added, and the ratio of the composite bacterial agents is: photosynthetic bacteria, Bacillus subtilis, nitrifying bacteria, lactic acid bacteria, and yeast in weight ratios: 20:30:25:15:10 . The feeding ratio of the compound bacterial agent i...

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Abstract

The invention provides a method for treating a polluted water body in a lake, which comprises the following steps: (1) detecting the pollution indexes of water body in the lake; (2) regulating the types and quantities of microbial agents; (3) placing a resulting composite microbial agent in the water body in an amount of 10 to 40 ppm; (4) allowing the composite microbial agent to transfer, covertand degrade pollutants in the water body in the lake; and (5) detecting the pollution indexes of the water body in the lake. The microbial agents comprise photosynthetic bacteria, bacillus subtilis, nitrobacteria, lactic acid bacteria and yeasts. The method for treating the polluted water body in the lake of the invention reduces and inorganizes pollutants in water body in the lake, radically restores ecology and has the characteristics of high efficiency, prevention of secondary pollution, low cost and simple use.

Description

technical field [0001] The invention relates to the technical field of ecological treatment, in particular to a treatment method for polluted lake water. Background technique [0002] The deterioration of lake water quality is mainly caused by the enrichment of a large number of nutrients imported from the outside world in the water body. Effectively controlling the input of exogenous nutrients is an important prerequisite for the ecological restoration of lake water bodies. [0003] At present, the restoration of ecosystems is mainly through the control of endogenous and exogenous nutrients. The control of endogenous nutrients is mainly divided into engineering measures, chemical methods, bioaugmentation methods, etc. Engineering measures mainly include: water diversion dilution, sediment dredging, sediment covering, etc.; chemical methods mainly include adding aluminum salts, etc.; biological enhancement methods include: deep water aeration technology, etc. [0004] A la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/32
CPCY02W10/10
Inventor 熊幼林赵亚勋李玄简川湖熊盛贵
Owner DONGGUAN SHENGYUAN ENVIRONMENTAL PROTECTION TECH
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