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Blue algae bloom activated char and preparation thereof

A cyanobacterial bloom and activated carbon technology is applied in the field of cyanobacterial bloom activated carbon and its preparation. Effect

Inactive Publication Date: 2008-11-05
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is generally believed that fruit shell is the best raw material for preparing activated carbon, but the resource of fruit shell in my country is very limited, and it is not easy to concentrate and store, and the price is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Separation by flocculation of cyanobacterial bloom cationic modified clay, adding 600-1000ppm cationic modified clay to a certain volume of cyanobacterial bloom, stirring evenly, and filtering through 80-mesh sieve after standing for 10 minutes to collect algae mud;

[0016] (2) cyanobacteria bloom zinc chloride impregnation and microwave radiation drying, moisture content: 80% 200g cyanobacteria bloom algae mud, mix well with 50g zinc chloride and 50g sodium bicarbonate in a 1000ml beaker, dip for 24h, Put it into a microwave sample dissolving furnace and heat it at a high level until it becomes a powder with a light tap;

[0017] (3) Liquid-phase carbonization activation of cyanobacteria bloom. During carbonization, add 300ml of liquid paraffin and 150g of cyanobacteria bloom dry powder impregnated with zinc chloride into the carbonization bottle, and heat the carbonization bottle. As the temperature of the liquid paraffin gradually rises above 100°C, the sodium b...

Embodiment 2

[0021] Dehydrate and dry the cyanobacteria bloom and algae mud at 100°C, and heat it to 250°C in an electric furnace with good sealing performance under anoxic state to heat the cyanobacteria bloom and algae mud evenly for 2 hours, cool, crush, and sieve separately Get through 200 mesh sieves and make cyanobacteria bloom activated carbon.

Embodiment 3

[0023] The cyanobacteria bloom algae mud was dehydrated and dried at 110° C. in a microwave sample-dissolving furnace, heated to 400° C. in an electric furnace, and heated for 1.5 hours. Other steps were the same as in Example 1 to prepare cyanobacteria bloom activated carbon.

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PUM

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Abstract

The invention relates to a blue algae water bloom active carbon and a preparation method thereof. The active carbon is produced by drying the blue algae water bloom alga mud at the hign temperature of 250 to 600 DEG C for 0.5 to 2 hours. The invention starts a new trail for utilizing the blue algae water bloom as a resource. The method can effectively produce active carbon with blue algae water bloom, which can not only save resources but also is favorable to protect the ecological environment and finally the purpose of treating pollution and reducing the pollution treatment cost can be realized.

Description

technical field [0001] The invention relates to a cyanobacteria bloom activated carbon and a preparation method thereof. Background technique [0002] Eutrophication of water body is a major environmental problem faced by countries all over the world. A prominent problem brought about by water eutrophication is the outbreak of cyanobacteria blooms. Large-scale cyanobacterial blooms reduce the efficiency of water resource utilization, causing serious ecological damage and huge economic losses, while the production of cyanobacterial toxins has brought great hidden dangers to public health. Incidents of cyanotoxin poisoning have also been reported from time to time. Cyanobacteria are a class of ancient organisms, which are classified as algae such as red algae, brown algae or green algae due to their autotrophic lifestyle, and there is almost no reason to call them algae. Considered from a cytological point of view, it is actually closer to bacteria, having 70S ribosomes and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08
Inventor 李文鹏苏睿哲韩金均
Owner YUNNAN UNIV
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