Method for controlling alga pollution of water body at water intake of water plant

A water intake and water body technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water aeration, etc., can solve problems such as difficult to achieve, huge cost, unsuitable for water intake, etc., to achieve convenient operation, The control effect is obvious and the effect of avoiding the excessive growth of algae

Inactive Publication Date: 2012-10-24
陈迪军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: it is difficult to achieve the goal in a short time, and it costs a lot of money
[0012] Due to the particularity of the water intake of the water plant, many methods of preventing and controlling blue-green algae are not suitable for the water intake

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, a method for preventing and controlling water body algae pollution at the water intake of a water plant. A surface aerator is installed at the water intake of a water plant, and the surface aerator is started to spray water when necessary.

Embodiment 2

[0021] Embodiment 2, a method for preventing and controlling the algae pollution of the water body at the water intake of the water plant, setting an artificial fountain at the water intake of the water plant, and starting the artificial fountain to spray water when necessary.

Embodiment 3

[0022] Example 3, an example of preventing and controlling algae pollution in water intakes of water works. A cyanobacteria outbreak occurred in the Qutashan Reservoir in Ganyu County, Jiangsu Province. At that time, cyanobacteria covered two-thirds of the reservoir area. After organizing personnel to salvage with fishing nets, install the surface aerator according to the method of Example 1, and the surface aerator covers 3000m 2 When the water temperature of the surface 20-30cm of the water body at the water intake reaches above 25°C, start the surface aerator for water spraying treatment. As a result, the algae count dropped by more than 90%, and the water became clearer. After that, there was no blue-green algae outbreak at the water intake. From the above actual evidence, it is not difficult to draw a conclusion that the above methods and measures can be used to solve the problem of controlling cyanobacteria outbreaks, and have high feasibility.

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PUM

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Abstract

The invention relates to a method for controlling alga pollution of a water body at a water intake of a water plant. The method is characterized in that a surface aerator or an artificial fountain is provided at the water intake of a water plant and is started for water spraying as needed. According to the method provided in the invention, since water is sprinkled onto the surface of a water body through arranging the surface aerator or the artificial fountain and starting the surface aerator or the artificial fountain for water spraying as needed, overgrowth of algae at a water area around the water intake can be effectively avoided, and blue algae generated in the surrounding water area are prevented from entering, thereby avoiding the influence on the quality of drinking water by harmful blue algae entering into a water purification procedure of the water plant; furthermore, sprayed water allows the temperature of surface water of the water body to be decreased to some extent, thereby reducing propagation of algae in the water body at the water intake. The method in the invention has the advantages of a simple design, convenient operation, high feasibility, low cost, easy popularization and an obvious control effect.

Description

technical field [0001] The invention relates to a method for preventing and controlling algae, in particular to a method for preventing and controlling algae pollution in water intakes of water plants. Background technique [0002] The environmental problems caused by the cyanobacteria outbreaks caused by the eutrophication of water bodies have attracted more and more attention from the society, but the effect of many efforts is limited. The problem of cyanobacteria control is still serious. [0003] Throughout the domestic and foreign measures to control cyanobacteria outbreaks, there are mainly the following types, and now we will introduce and evaluate their deficiencies or mistakes one by one: [0004] 1. Biological Control Law. Cyanobacteria are the food of freshwater fish, so it is possible to control algae and prevent algae outbreaks by releasing such fry. Cyanobacteria itself is the food of freshwater fish, but if the water bloom is seriously polluted, the fish c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00
CPCY02W10/10
Inventor 陈迪军
Owner 陈迪军
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