Algicide based on aquatic plants and preparation method and application of algicide

An aquatic plant, algaecide technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of high cost and high price

Active Publication Date: 2015-10-07
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The clay modified with chitosan has good algae removal effect and low impact on the environment, but it is often necessary to add a large amount of clay when controlling algal blooms, and the price of chitosan is relatively high, which makes the cost relatively high. High, this is a problem that needs to be solved urgently in the prior art

Method used

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  • Algicide based on aquatic plants and preparation method and application of algicide
  • Algicide based on aquatic plants and preparation method and application of algicide
  • Algicide based on aquatic plants and preparation method and application of algicide

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preparation example Construction

[0062] In the preparation method provided by the present invention, the specific amount of each material can be selected within a wide range, but, in order to further improve the algae removal ability of the prepared algaecide, preferably, relative to 100 parts by weight of the plant powder, The amount of HCl is 2.5-10 parts by weight, and the amount of expanded vermiculite is 250-3000 parts by weight.

[0063] In addition, in the above-mentioned mixing process, the order of adding each raw material can be selected in a wide range, but in order to allow the synergistic effect between HCl, plant powder and expanded vermiculite to be fully brought into play, preferably, HCl , plant powder, expanded vermiculite and water are mixed and comprise the steps:

[0064] (1) Mixing 0.5-2.0% by weight hydrochloric acid solution with plant powder, and constant volume to obtain a mixed solution;

[0065] (2) Mix the expanded vermiculite with the mixed solution.

[0066] In addition, in th...

preparation example 1

[0071] Clean the Siberia plant, freeze-dry it at -60°C for 48 hours, grind it into powder, and sieve it through a 200-mesh sieve to obtain the Siberia powder with a particle size of less than 74 μm.

[0072] Sophora japonica powder, cattail powder, eclipse powder and cocklebur powder were prepared by the same method as above.

preparation example 2

[0074] The massive vermiculite is crushed and sieved to obtain particles with a sheet diameter of 2-4mm, then calcined at 900°C for 1 min, then crushed into powder and sieved through a 200-mesh sieve to obtain expanded vermiculite with a particle size of less than 74μm.

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Abstract

The invention discloses algicide based on aquatic plants and a preparation method and application of the algicide. The algicide comprises HCl, plant powder, expanded vermiculite and water, wherein the plant powder is selected from one or more of najas marina, salvinia natans, cattail, alternanthera philoxeroides and xanthium sibiricum. The algicide has excellent algae removal capacity, and is environmentally friendly and low in using amount. Meanwhile, the method for preparing the algicide is simple in step, raw materials are easy to obtain, cost is low, and therefore the algicide can be widely applied to purifying water.

Description

technical field [0001] The present invention relates to an algaecide, in particular to an algaecide based on aquatic plants and its preparation method and application. Background technique [0002] The occurrence of algae blooms is accompanied by a large number of algae outbreaks. Effective removal of algae is the direct way to control the scale of algae blooms and reduce the damage of algae blooms. After long-term research and practice, three main types of algae removal technologies have been formed by means of physics, chemistry and biology. [0003] Physical methods can be divided into removal method and killing method. The former is to directly remove algae cells or reduce their content through certain physical methods, mainly including water diversion, mechanical algae removal, filtration algae removal, air flotation algae removal and activated carbon adsorption, etc. The latter is to use physical means to directly or indirectly kill algae in the water body. The main m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/50C02F1/52C02F9/04
Inventor 左胜鹏万堃周守标方章顺
Owner ANHUI NORMAL UNIV
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