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Method for processing blue algae in pool, riverway or lake

A cyanobacteria and river technology, applied to the cyanobacteria in rivers or lakes to treat ponds, can solve the problems of insignificant effect, cure the symptoms but not the root cause, and the odor of cyanobacteria, and achieve the effect of obvious treatment effect, convenient operation and water quality improvement.

Inactive Publication Date: 2008-03-12
袁玉平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the above methods are palliative but not the root cause, some have serious impact on ecology, the effect is not obvious, and the dead cyanobacteria will emit a serious stench, and the water body will also stink.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A section of a certain river is 160 meters long, 15 meters wide, and 1.5 meters deep; the other section is 120 meters long, 4 meters wide, and about 1.5 meters deep. For small miscellaneous fish, there are obvious blue-green algae on the river surface before treatment. Four employees salvage blue-green algae in the downwind every day, and the amount of blue-green algae salvaged every day is about 200 kilograms. The total water volume of the river is 4320 tons, and the total amount of blue-green algae is about 1.5 tons. Treatment method: Spray 100 kg of 35wt% hydrogen peroxide solution on the entire river surface, cyanobacteria will die after 5 minutes, a large number of cyanobacteria will die on the river surface after 2 hours, all cyanobacteria will die after 12 hours, and some of the river water will become Milky white, but no foul smell. After 48 hours, the river water gradually became clear, and the cyanobacteria disappeared. During the whole process, no fish died. ...

Embodiment 2

[0014] A certain river channel is 120 meters long, 65 meters wide, and about 3 meters deep. It has been converted into a fish pond. There are a large number of special aquatic fish from the Yangtze River. It is very close to the Yangtze River. There are a large number of blue-green algae on the river surface, which are manually salvaged every day. The amount of cyanobacteria is about 500 kg, and 1000 to 2000 fish die every day. The total water volume of the river is 2340 tons, and the total amount of blue-green algae is about 5 tons. Treatment method: In view of the complex situation of the fish in the river, adopt divided treatment, first dilute 150 kg of hydrogen peroxide solution with a concentration of 35wt% to a concentration of 3wt%, then spray, and then spray once every 2 days according to the above method , Sprayed 3 times in total, no cyanobacteria can be seen by the naked eye after treatment. The number of dead fish gradually decreased from the initial 1000 to 2000,...

Embodiment 3

[0016] A certain river course is 670 meters long, 12 meters wide, and about 2.5 meters deep. The river is green, with a small amount of blue-green algae appearing on the river surface, which has a clear fishy smell. 20,000 fish are stocked in Hanoi. The total water volume of the river is 20,000 tons, and the total amount of blue-green algae is about 8 tons. Treatment method: first dilute 200 kilograms of hydrogen peroxide solution with a concentration of 35wt% to a concentration of 5wt%, and then spray. After 2 days, dilute 100 kilograms of a hydrogen peroxide solution with a concentration of 35wt% to a concentration of 5wt% for the second spraying. After this treatment, no cyanobacteria could be seen with the naked eye, and there was no fish death.

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Abstract

The present invention discloses a method for treating cyanobacterias in ponds, rivers canal or lakes. The method goes in that the hydrogen peroxide aqueous is directly added into the water body of the ponds, river canal or lakes with cyanobacterias contained and the hydrogen peroxide aqueous a hydrogen peroxide aqueous are caused to react sufficiently with the cyanobacterias in the water body. The concentration of the hydrogen peroxide aqueous ranges from 0.1wt% to 40wt% and the ratio between the mass of the hydrogen peroxide in the hydrogen peroxide aqueous against that of cyanobacterias in the water body ranges from 1:1000 to 35:1000. The adding method for the hydrogen peroxide aqueous is that the hydrogen peroxide aqueous is directly sprayed onto the surface of the water body or a circulating pump is used to implement the circulation in the water so as to gradually bring the hydrogen peroxide aqueous into the water body. The method of the present invention delivers simple operation, has low cost, has remarkable effects and has no effect on the ecology, not only can kill the cyanobacterias by oxidation, but also can decompose the cyanobacterias, and further can eliminate colors and fetidity and enhance the content of the dissolved oxygen in the water.

Description

technical field [0001] The invention belongs to the field of algae treatment, and in particular relates to a method for treating cyanobacteria in ponds, river courses or lakes. Background technique [0002] At present, the eutrophication of many rivers and lakes promotes a large number of blue-green algae outbreaks in the water body, and the water quality drops sharply. A large number of fish in the water die due to lack of oxygen and poisoning. Human beings all have a serious impact, and the foul smell will seriously affect the living environment of human beings, which is an urgent problem to be solved at present. Existing methods for treating ponds, rivers, and lakes of cyanobacteria include artificial salvage, biological methods, physical adsorption (using clay to allow cyanobacteria to absorb and settle to the bottom of the water), chemical methods (using copper sulfate), electromagnetic waves and ultrasonic waves to sink cyanobacteria, adding water dilution method. So...

Claims

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Application Information

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IPC IPC(8): C02F1/72
Inventor 袁玉平
Owner 袁玉平
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