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High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same

A flocculant and high-efficiency technology, applied in the field of preparation of algae flocculants, can solve the problems of large sludge production and large clay dosage.

Inactive Publication Date: 2003-05-21
BEIJING GREEN ECO ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present inventor once proposed a patented technology (application number: 01134528.4) to flocculate and settle algae cells in water bodies based on hydrous magnesium silicate (such as sepiolite) with clay (application number: 01134528.4), but the dosage of clay is relatively Large, the amount of sludge generated is also relatively large

Method used

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  • High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same
  • High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same
  • High efficiency algae flooculation agent, method for treating red tide and plakton bloom using same

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] The preparation of embodiment 1 efficient algae flocculant 1

[0022] The chitosan used in this example 1 is the industrial grade chitosan produced by Qingdao Haisheng Biological Engineering Co., Ltd. Weigh 100 mg of chitosan, add 10 ml of 1% HCl solution, and after the chitosan is completely dissolved, add distilled water to dilute to 100 ml to obtain a 1 mg / ml chitosan solution. Take 10ml of chitosan solution, add 90mg of clay (that is, modifier:clay ratio of 1:9), ultrasonicate for 1min and mix well, and then the algae flocculant of the present invention is prepared.

Embodiment 2

[0023] The preparation of embodiment 2 efficient algae flocculant 2

[0024] The sodium alginate used in Example 2 was produced by Tianjin Jinghai Seaweed Products Factory. Weigh 100 mg of sodium alginate and add 100 ml of distilled water to obtain a 1 mg / ml sodium alginate solution. Take 10ml of sodium alginate solution, add 50mg of clay (that is, the ratio of modifier:clay is 1:5), ultrasonicate for 1min and mix well, and then the algae flocculant of the present invention is prepared.

Embodiment 3

[0025] Embodiment 3 Preparation of efficient algae flocculant 3

[0026]The carboxymethyl cellulose used in the present embodiment 3 is produced by Shijiazhuang Guanghua Chemical Factory. Weigh 100 mg of carboxymethyl cellulose and add 100 ml of distilled water to obtain a 1 mg / ml carboxymethyl cellulose solution. Take 10ml of carboxymethyl cellulose solution, add 500mg of clay (that is, modifier:clay ratio of 1:50), ultrasonicate for 1min and mix well, and then the algae flocculant of the present invention is prepared.

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Abstract

The present invention provides a method for preparing high-effective algae flocculant from non-toxic, easy-to-bio-degrade, cheap, natural macromolecular polymer modified clay. Said modification can obviously raise flocculation algae-removing capability of different clay, the algae-removing rate of various clays can be 20-95% Said high-effective algae flocculant can be used for controlling and treating large area red tide, fresh water algal bloom, and also can be used for removing harmful algae in river and drinking water plant.

Description

technical field [0001] The invention relates to the preparation of an algae flocculant and a method for controlling seawater red tide and freshwater bloom. Specifically, it uses natural, non-toxic, and biodegradable high-molecular polymer modified clay that will not cause secondary pollution to the environment to produce a type of high-efficiency algae flocculant, and use it to treat seawater red tide, freshwater Algal blooms, harmful algae pollution methods for river courses and drinking water plants. Background technique [0002] The outbreak of harmful algae in natural seawater, lakes and rivers (commonly known as red tide in seawater and algae bloom in freshwater) has become a global environmental pollution problem. It not only seriously deteriorates water quality, depletes oxygen, and causes a large number of fish to die, but also algae toxins can enter the food chain and cause human diseases and even death. So far, there is no technology in the world that can safely,...

Claims

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Application Information

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IPC IPC(8): C02F1/56
Inventor 潘纲邹华
Owner BEIJING GREEN ECO ENVIRONMENTAL TECH
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