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Preparation method of compound algicide with high alga removal rate

A technology of high algae removal rate and algicide, which is applied in the direction of herbicides and algicides, botany equipment and methods, chemical instruments and methods, etc. Short cycle and other issues, to achieve good flocculation effect, good flocculation capacity and adsorption capacity, and accelerated death

Active Publication Date: 2018-06-29
广州市弗雷德环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a compound algaecide with a high algae removal rate in view of the defects of slow effect, short action period and poor algae removal rate of the current common algaeicides, which lead to the inability to achieve the algae removal effect. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021]Weigh 100g of fly ash and 80g of expanded graphite, mix and grind for 6min, pass through a 100-mesh sieve, collect the sieved powder, pour the sieved powder into a beaker, place it in a water bath at 45°C and stir for 3min, add 12mL mass to the beaker 10% hydrochloric acid and 16 mL of 15% hydrogen peroxide, continue to keep mixing and stirring for 1h, wait until the reaction is complete until no gas escapes, stop heating, rinse the sieved powder with deionized water, remove the remaining hydrochloric acid and hydrogen peroxide, Finally, put it into an oven at 65°C and dry for 20 minutes to obtain the modified mixed powder. The modified mixed powder and the magnetite powder were mixed and stirred for 10 minutes according to the mass ratio of 3:1 to obtain a self-made magnetic mixture. The shells and crab shells were mixed and stirred for 8 minutes to obtain a mixture, and the mixture was added to a fermenter with a biogas slurry containing 0.5% of the mixture mass, and th...

example 2

[0023] Weigh 110g of fly ash and 90g of expanded graphite, mix and grind for 7min, pass through a 100-mesh sieve, collect the sieved powder, pour the sieved powder into a beaker, place it in a water bath at 55°C and stir for 4min, add 15mL mass to the beaker 10% hydrochloric acid and 18 mL of 15% hydrogen peroxide, continue to keep mixing and stirring for 1.5h, wait until the reaction is complete until no gas escapes, stop heating, rinse the sieved powder with deionized water, and remove the remaining hydrochloric acid and hydrogen peroxide , and finally put it into an oven at 70 ° C to dry for 25 minutes to obtain the modified mixed powder. According to the mass ratio of 3:1, the modified mixed powder and the magnetite powder are mixed and stirred for 11 minutes to obtain a self-made magnetic mixture. Shrimp shells and crab shells were mixed and stirred for 9 minutes to obtain a mixture, and the mixture was added to a fermentation tank with a biogas slurry containing 0.5% of t...

example 3

[0025] Weigh 120g of fly ash and 100g of expanded graphite, mix and grind for 8min, pass through a 100-mesh sieve, collect the sieved powder, pour the sieved powder into a beaker, place it in a water bath at 65°C and stir for 5min, add 16mL mass to the beaker 10% hydrochloric acid and 20 mL of 15% hydrogen peroxide, continue to heat and mix for 2 hours, wait until the reaction is complete until no gas escapes, stop heating, rinse the sieved powder with deionized water, and remove the remaining hydrochloric acid and hydrogen peroxide, Finally, put it into an oven at 75°C and dry for 30 minutes to obtain the modified mixed powder. The modified mixed powder and the magnetite powder were mixed and stirred for 12 minutes according to the mass ratio of 3:1 to obtain a self-made magnetic mixture. The shells and crab shells were mixed and stirred for 10 minutes to obtain a mixture, and the mixture was added to a fermenter with a biogas slurry containing 0.5% of the mixture mass, and th...

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Abstract

The invention discloses a preparation method of compound algicide with a high alga removal rate and belongs to the technical field of algicide. According to the preparation method disclosed by the invention, coal ash and expanded graphite are mixed to serve as a carrier, saccharose is utilized as an outer coated carbon layer precursor, and the carrier and the saccharose are prepared into visible-light catalytic active compound algicide with visible-light catalytic activity is prepared through chitosan adsorption and copper ion coating; the compound algicide is in a worm shape and has good floatability, and an the alga removal rate of the algicide is improved; under irradiation of light, alga can generate oxygen on the surface through photosynthesis, the alga is accelerated to die, a descent rate of a chlorophyll content of the alga is quickened continuously, the alga is accelerated to die, and the alga removal rate of the algicide is improved againfurther; the chitosan and the coal both have better flocculation capacity and adsorption capacity, and the chitosan can generate amino groups with positive charge after reacting with hydrochloric acid; when the amino groups are more, an acid solution and magnetite powder are utilized to jointly modify the coal ash and the expanded graphite; thus, the alga removal rate of the algicide is further improved; the algicide has a wide application prospect.

Description

technical field [0001] The invention discloses a preparation method of a compound algaecide with high algae removal rate, and belongs to the technical field of algaecide preparation. Background technique [0002] The algaecide has good bactericidal and algae killing ability in different pH value ranges, can effectively excavate algae reproduction and slime growth, and has dispersing and osmotic effects, can penetrate and remove slime and peel off attached algae , In addition, it has the ability to remove oil. It is suitable for the killing of algae and microorganisms in various water systems, such as: fish ponds, ponds, rivers, large central air conditioners, engineering heat exchange, processing and other circulating cooling water systems. [0003] As we all know, blue-green algae has become a major problem in the protection of the current environment and water quality, and the breeding of blue-green algae has directly affected the domestic water of human beings. Since th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/50C02F1/28C02F1/48C02F1/30C02F1/32C02F1/72A01N59/20A01N61/00A01N59/00A01P13/00
CPCA01N59/00A01N59/20A01N61/00C02F1/288C02F1/30C02F1/32C02F1/488C02F1/50C02F1/725C02F2103/007C02F2303/20
Inventor 姜建国杨亚生陈可
Owner 广州市弗雷德环保科技有限公司
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