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Method using sulfate-reducing bacteria for demineralization of lakes and rivers

A technology of sulfate and salinity, which is applied in the water body self-purification enhancement system, and sulfate-reducing bacteria remove the salinity of lake and river water, which can solve the problems of expensive treatment costs, difficult sludge disposal, high energy consumption, etc., and achieve good removal effect of effect

Inactive Publication Date: 2012-06-13
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the following problems in the prior art: using traditional physical and chemical desulfurization methods to remove pollutants such as sulfate in seasonally low temperature, arid and winter-frozen rivers and lakes, there are problems of high energy consumption and expensive treatment costs , and the difficulty of sludge disposal and other insurmountable defects; adding sulfate-reducing bacteria directly to the water body or filler immobilized sulfate-reducing bacteria, the adaptability and degradation efficiency of the bacteria in the water body will be affected by environmental factors However, the fluctuation is large, and the desulfurization effect of the water body is difficult to be effective and controlled. The present invention provides a method for using sulfate-reducing bacteria to remove the salinity of water entering lakes and rivers. The water body self-purification strengthening system adopts the A / O operation mode, which can effectively Reduce the concentration of pollutants such as sulfate radicals, organic matter and ammonia nitrogen in the water body, and reduce the acidity of the water body

Method used

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  • Method using sulfate-reducing bacteria for demineralization of lakes and rivers

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Embodiment 1

[0046] A method of using sulfate-reducing bacteria to remove the salinity of water entering lakes and rivers according to the present invention. In rivers rich in sulfate, according to the natural structure of the river bed, a water body self-purification strengthening system is set up, and an anaerobic / aerobic partition structure is adopted. , the river water 1 entering the lake enters the water body self-purification strengthening system, and the treated river water 5 enters the lake through the water body self-purification strengthening system to realize the effective removal of sulfate in the river water body. The steps are:

[0047] 1) Build a water body self-purification strengthening system: set up two reaction zones along the river flow direction on the river channel, which are facultative zone 2 and aerobic zone 4, of which the facultative zone 2 adopts a closed structure without stirring equipment; the aerobic zone 4 adopts an open structure, and a microporous aeratio...

Embodiment 2

[0057] A method of using sulfate-reducing bacteria to remove the salinity of water entering lakes and rivers according to the present invention. In rivers rich in sulfate, according to the natural structure of the river bed, a water body self-purification strengthening system is set up, and an anaerobic / aerobic partition structure is adopted. , the river water 1 entering the lake enters the water body self-purification strengthening system, and the treated river water 5 enters the lake through the water body self-purification strengthening system to realize the effective removal of sulfate in the river water body. The steps are:

[0058] 1) Build a water body self-purification strengthening system: set up two reaction zones along the river flow direction on the river channel, which are facultative zone 2 and aerobic zone 4, of which the facultative zone 2 adopts a closed structure without stirring equipment; the aerobic zone 4 adopts an open structure, and a microporous aeratio...

Embodiment 3

[0068] A method of using sulfate-reducing bacteria to remove the salinity of water entering lakes and rivers according to the present invention. In rivers rich in sulfate, according to the natural structure of the river bed, a water body self-purification strengthening system is set up, and an anaerobic / aerobic partition structure is adopted. , the river water 1 entering the lake enters the water body self-purification strengthening system, and the treated river water 5 enters the lake through the water body self-purification strengthening system to realize the effective removal of sulfate in the river water body. The steps are:

[0069] 1) Build a water body self-purification strengthening system: set up two reaction zones along the river flow direction on the river channel, which are facultative zone 2 and aerobic zone 4, of which the facultative zone 2 adopts a closed structure without stirring equipment; the aerobic zone 4 adopts an open structure, and a microporous aeratio...

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Abstract

The invention relates to a method for demineralization of lakes and rivers, and discloses a method using sulfate-reducing bacteria for demineralization of lakes and rivers, which includes: step one, setting up of a water self-purification reinforcing system; step two, enrichment culture of sulfate reducing bacteria on culture medium; and step three, throwing, domesticating and fixing of the sulfate reducing bacteria. The method using the water self-purification reinforcing system in an A / O (anoxic-oxic) operating way can effectively reduce concentration of pollutants of sulfate radicals, organics, ammonia nitrogen and the like in water and reduce acidity of water.

Description

Technical field [0001] The present invention involves a method of removing water mineralization of the lake and river, and specially involves the use of A / O operating method to use the water body self -purification system, and the method of using sulfate to remove the water mineralization of lakes and rivers. Background technique [0002] It is known that many industries in China, such as power, petroleum refining, non -ferrous metal smelting, sulfuric acid preparation, chemical fiber production and coking, light industry, food fermentation and pharmaceutical industry, will bring a large number of wastewater rich in sulfate or sulfide,These industrial wastewater containing sulfate into the river and lakes such as river and lakes. If it is not effectively treated, water body containing sulfate will consume a large area of dissolved oxygen in a long -term anaerobic environment and reduce the water body of the water body.The pH value produces potential corrosiveness, destroys the so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/30
CPCY02W10/37
Inventor 丁原红任洪强王庆牛川肖椿
Owner NANJING UNIV
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