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Algicide based on sweet wormwood herb extract modification and preparation method and application thereof
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A technology of extract and algaecide, applied in the field of algaecide, can solve the problems of high price and high cost
Inactive Publication Date: 2016-06-15
宜兴市苏亚达生物技术有限公司
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Although the clay modified with chitosan has good algae removal effect and low impact on the environment, 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 High, this is a problem that needs to be solved urgently in the prior art
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preparation example Construction
[0028] The invention provides a preparation method of algaecide modified based on Artemisia annua extract, comprising:
[0029] 1) Soak Artemisia annua powder in water, then filter, and take the filtrate to evaporate and crystallize to obtain Artemisia annua extract;
[0031] 3) Mixing the Artemisia annua extract solution with fumed silica to prepare an algicide based on Artemisia annua extract modification.
[0032] In step 1) of the present invention, the amount of each material can be selected in a wide range, but in order to further improve the extraction rate of Artemisia annua extract, preferably, in step 1), relative to 100g of water, Artemisia annua The dosage of powder is 2-6g.
[0033] In step 1) of the present invention, soaking conditions can be selected in a wide range, but in order to further improve the extraction rate of Artemisia annua extract, prefera...
Embodiment 1
[0045] 1) Dissolve 4g of Artemisia annua powder in 100g of water at 23°C and let it stand for 12 hours, then vibrate ultrasonically for 20 minutes; then filter, take the filtrate and evaporate and crystallize at 30°C to obtain Artemisia annua extract;
[0046] 2) Ultrasonic oscillation of 0.1 g of Artemisia annua extract in 20 g of water for 5 minutes to prepare an Artemisia annua extract solution;
[0047] 3) Mix 1 ml of the Artemisia annua extract solution with 20 mg of fumed silica to prepare algaecide A1 modified based on the Artemisia annua extract.
Embodiment 2
[0049] 1) Dissolve 2 g of Artemisia annua powder in 100 g of water at 20°C and let it stand for 12 hours, then vibrate ultrasonically for 20 minutes; then filter, take the filtrate and evaporate and crystallize at 25°C to obtain Artemisia annua extract;
[0050] 2) Ultrasonic oscillation of 0.05 g of Artemisia annua extract in 20 g of water for 5 minutes to prepare an Artemisia annua extract solution;
[0051] 3) Mix 1 ml of the Artemisia annua extract solution with 10 mg of fumed silica to prepare algaecide A2 modified based on the Artemisia annua extract.
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Abstract
The invention discloses algicide based on sweet wormwood herb extract modification and a preparation method and application thereof. The preparation method comprises the steps that 1, sweet wormwood herbpowder is soaked in water, then filtering is carried out, and filtrate is extracted for evaporative crystallization to obtain sweet wormwood herb extract; 2, the sweet wormwood herb extract is dissolved into water to obtain a sweet wormwood herb extract solution; 3, the sweet wormwood herb extract solution and fumed silica are mixed to obtain the algicide based on sweet wormwood herb extract modification. The algicide prepared through the method is excellent in alga removal effect and environmentally friendly, and meanwhile the preparation method of the algicide is simple in step and low in cost.
Description
technical field [0001] The invention relates to an algaecide, in particular to an algaecide modified based on Artemisia annua extract 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. ...
Claims
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Application Information
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