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Town river course water quality management method

A technology for rivers and towns, applied in the field of water resources protection, can solve problems such as damage to urban landscape image, odor and blackening of water quality, pollution of air and water environment, etc., to achieve the effect of enhancing self-purification ability

Inactive Publication Date: 2015-12-16
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: due to the massive discharge of domestic sewage in urban rivers, the water body is seriously hypoxic, causing the water quality to become stinky and black, seriously polluting the air and water body environment, and damaging the image of the urban landscape. It cannot be completely treated, the ecological restoration time is long, and the effect is not obvious. A purification method for serious water pollution in urban rivers is proposed. This method uses the characteristics of the river's own silt, by adding dispersants and flocculants and oxygenation. function together to achieve the purpose of restoring the river course and improving the image of the urban landscape

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] First, put the dissolved oxygen online monitor vertically into the river water. When the dissolved oxygen concentration in the river water is ≤2mg / L, the control box will automatically turn on the soda-water mixing pump, suck in the water in the river and the outside air, and fully mix them in the soda-water mixing pump to produce The 0.3Mpa soda-water mixture raises the silt at the bottom of the river, and the soda-water mixing ratio in the soda-water mixing pump is 1:1; at the same time, the dispersant dosing pump is turned on, and 30ppm sodium tripolyphosphate solution is injected into the pipeline; the silt at the bottom of the river During the process of being lifted up and scattered and dropped, start the flocculant dosing pump, inject 300mg / LPAC into the pipeline, continue to keep the rotary nozzle with automatic switch one-way valve running for 3 minutes, then stop the soda-water mixing pump, let stand, settle That's it; after treatment, the transparency of urban...

example 2

[0026] First, put the dissolved oxygen online monitor vertically into the river water. When the dissolved oxygen concentration in the river water is ≤2mg / L, the control box will automatically turn on the soda-water mixing pump, suck in the water in the river and the outside air, and fully mix them in the soda-water mixing pump to produce The 0.4Mpa soda-water mixture raises the silt at the bottom of the river, and the soda-water mixing ratio in the soda-water mixing pump is 1:1; at the same time, the dispersant dosing pump is turned on, and 40ppm sodium tripolyphosphate solution is injected into the pipeline; the silt at the bottom of the river During the process of being lifted up and scattered and dropped, start the flocculant dosing pump, inject 400mg / LPAC into the pipeline, continue to keep the rotary nozzle with automatic switch one-way valve running for 7 minutes, stop the soda-water mixing pump, let it stand, and settle That's it; after treatment, the transparency of urb...

example 3

[0028] First, put the dissolved oxygen online monitor vertically into the river water. When the dissolved oxygen concentration in the river water is ≤2mg / L, the control box will automatically turn on the soda-water mixing pump, suck in the water in the river and the outside air, and fully mix them in the soda-water mixing pump to produce The 0.5Mpa soda-water mixture raises the silt at the bottom of the river, and the soda-water mixing ratio in the soda-water mixing pump is 1:1; at the same time, the dispersant dosing pump is turned on, and 50ppm sodium tripolyphosphate solution is injected into the pipeline; the silt at the bottom of the river During the process of being lifted up and scattered and dropped, start the flocculant dosing pump, inject 500mg / LPAC into the pipeline, continue to keep the rotary nozzle with automatic switch one-way valve running for 10 minutes, then stop the soda-water mixing pump, let stand, settle That is enough; after treatment, the transparency of...

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Abstract

The present invention relates to a town river course water quality management method, and belongs to the technical field of water resource protection. In the prior art, a lot of domestic sewage is discharged into town river courses, such that the water body seriously lacks in oxygen, the water is smelly and darkens, the air and the water body environment are seriously polluted, and the urban landscape image is damaged; and the current technology can not completely control the condition, the ecological restoration time is long, the effect is not obvious, and other problems exist. A purpose of the present invention is to solve the technical problems in the prior art and provide a special purification method for the serious town river course water pollution, wherein the river course sludge characteristics are utilized, the dispersant and the flocculant are added and the oxygenation effect is used so as to achieve the river restoration purpose and improve the urban landscape image.

Description

technical field [0001] The invention relates to a water quality control method for urban rivers, belonging to the technical field of water resources protection. Background technique [0002] In recent years, with the rapid development of my country's economy and the gradual improvement of people's living standards, most of the urban rivers in my country have evolved into black and smelly rivers. In many cities in our country, the organic pollution of rivers is ubiquitous and increasingly prominent. Urban sewage is directly discharged into rivers, and the rivers flowing through towns are seriously polluted. Environmental issues. [0003] At present, the methods used to control river water quality at home and abroad can be divided into three categories: physical, chemical and biological. Physical methods have the advantages of simple operation and quick results, but they generally play an auxiliary role in the process of river management; chemical methods are costly and will...

Claims

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Application Information

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IPC IPC(8): C02F1/52
CPCY02A20/402
Inventor 徐炜
Owner CHANGZHOU UNIV
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