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High-efficienct algae-removing and clean water reduction method

A clear water and high-efficiency technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as incomplete removal of cyanobacteria, chemical pollution of water areas, and rampant growth of cyanobacteria, etc., to achieve convenience Quick removal, growth inhibitory effect, effect of less usage

Inactive Publication Date: 2008-03-12
李贵生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The physical methods mainly include water body replacement method and upper layer suction method. The water body replacement method is costly and only suitable for smaller waters; the upper layer suction method also requires a lot of funds and energy, and the removal of cyanobacteria is not complete, and the temperature rises slightly. will grow crazy again
The chemical method uses chemical agents to kill cyanobacteria, which is costly and may cause chemical pollution of the waters, and the dead cyanobacteria provide good growth conditions for the surviving cyanobacteria. As long as the time is right, the cyanobacteria will still will grow crazy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Get the preparation calcium oxide, sodium chloride and aluminum sulfate, mix each component by the following weight percentages, calcium oxide 5%, sodium chloride 10% and aluminum sulfate 85%, add water and prepare saturated peeling liquid stand-by; Take Dianchi waters Add 2 kg of cyanobacteria sewage on the leeward port, add 4 grams of the prepared stripping solution, put it into a bottle with a diameter of 110 mm, shake it for 10 seconds to mix the sewage and the stripping solution, and let it stand for 20 minutes, the cyanobacteria layer floats On the water surface, the transparent clear water in the lower layer accounts for about 95%, and the clear water in the lower layer is sent back to the water area. The remaining concentrated cyanobacteria liquid is filtered, dehydrated and recovered. The cyanobacteria sewage obtained through filtration and dehydration is left to stand for 10 minutes, and the second peeling is performed, and the clear water is sent back to the ...

Embodiment 2

[0012] Get the preparation calcium oxide, sodium chloride and aluminum sulfate, mix each component by the following weight percentages, calcium oxide 3%, sodium chloride 14% and aluminum sulfate 83%, add water and prepare saturated peeling liquid stand-by; Take Dianchi waters Add 5 kg of cyanobacteria sewage in the middle, add 1 gram of the prepared stripping solution, put it into a container with a diameter of 200mm, stir for 7 seconds, mix the sewage and the stripping solution, and let it stand for 10 minutes, the cyanobacteria layer floats on the water surface , The transparent clear water in the lower layer accounts for about 95%, and the clear water in the lower layer is sent back to the water area. The remaining concentrated cyanobacteria liquid is filtered, dehydrated and recovered. The cyanobacteria sewage obtained through filtration and dehydration is left to stand for 5 minutes, and the second peeling is performed, and the clear water is sent back to the water area, ...

Embodiment 3

[0014] Get the preparation calcium oxide, sodium chloride and aluminum sulfate, mix each component by the following weight percentages, calcium oxide 4%, sodium chloride 12% and aluminum sulfate 84%, add water and prepare saturated peeling liquid stand-by; Take Dianchi water area Add 300 kg of cyanobacteria sewage at the downwind port, add 300 grams of the prepared stripping solution, put it into a container with a diameter of 600 mm, stir for 10 seconds to mix the sewage and the stripping solution, and then let it stand for 30 minutes, the cyanobacteria layer Floating on the water surface, the transparent water in the lower layer accounts for about 95%, and the lower layer of clear water is sent back to the water area. The remaining concentrated cyanobacteria liquid is filtered, dehydrated and recovered. The cyanobacteria sewage obtained through filtration and dehydration is left to stand for 20 minutes, and the second stripping is performed, and the clear water is sent back ...

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PUM

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Abstract

The present invention relates to a method to eliminate blue green algae highly effectively and reduce rinsing. The present invention relates to a solution to polluted water region, in particular to the method to eliminate the blue green algae in lake areas polluted by blue green algae. The method of the present invention is that (1) preparing stripping solution, each component is mixed according to the weight ratio that calcium oxide is 3 to 6 percent, sodium chloride is 10 to 15 percent and the rest is aluminium sulphate and then water is added to prepare into the stripping solution; (2) blue green algae delamination, each kilogram of blue green algae is added with 0.1 to 2 gram stripping solution to mix and then is in static arrangement for 5 to 30 minutes to lead the blue green algae to float on the surface; {3}stripping the blue green algae, the rinsing in the lower layer is sent back to the water region and the rest concentrated blue green algae solution is filtrated, dehydrated and recycled. The method to eliminate blue green algae has the advantages of fast speed, good effect, low investment and cost.

Description

technical field [0001] The invention relates to a treatment method for polluted waters, in particular to a method for removing cyanobacteria in lake waters polluted by cyanobacteria. Background technique [0002] Due to the increase of eutrophication in the rivers and lakes on the earth, the cyanobacteria in the waters grow more rapidly, and the waters polluted by cyanobacteria are increasing and deteriorating, especially in Taihu Lake, Chaohu Lake and Dianchi Lake in my country. The technology of controlling cyanobacteria in the world mainly contains physical method, chemical method and biological method at present, but the method with obvious effect has not been seen so far. The physical methods mainly include water body replacement method and upper layer suction method. The water body replacement method is costly and only suitable for smaller waters; the upper layer suction method also requires a lot of funds and energy, and the removal of cyanobacteria is not complete, a...

Claims

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Application Information

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IPC IPC(8): C02F1/00
Inventor 李贵生段天行
Owner 李贵生
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