Preparation method of modified algicide

Abstract

The invention provides a preparation method of a modified algicide. The preparation method of the modified algicide particularly includes the steps: (1) separately dissolving a certain mass of linoleic acid and a certain mass of artemisinin; (2) preparing N groups of linoleic acid and artemisinin solution with different ratios; (3) adding an emulsifier into the N groups of linoleic acid and artemisinin solution with the different ratios and emulsifying the N groups of linoleic acid and artemisinin solution; (4) adding sodium alginate, and mixing the materials uniformly to form N groups of mixed solution after emulsifying; (5) dropwise adding the mixed solution into CaCl2 solution to form modified algicide gel; (6) washing the modified algicide gel with distilled water, and drying the modified algicide gel to obtain the modified algicide. The preparation method of the modified algicide has the advantages that the prepared modified algicide can rapidly kill algae and continuously inhibitthe algae, secondary pollution is avoided, ecological safety is high, preparation flow is simple, the raw materials are easily obtained, and the cost is low.

Description

technical field [0001] The invention relates to a preparation method of a modified algicide, which belongs to the field of water body pollution control. Background technique [0002] Under the influence of human activities, water eutrophication caused by a large amount of nitrogen and phosphorus nutrient input has become an important environmental problem; The water quality destroys the balance of the water ecosystem and poses a threat to the safety of drinking water sources. It has become an important factor restricting the sustainable development of my country's social economy; therefore, how to effectively control algae in eutrophic water has become a research field in the field of water pollution control. Hotspots and Frontiers. [0003] In the control of algal blooms, the development and application of algae inhibitors is considered to be one of the effective and potential countermeasures; currently, algae inhibitors can be roughly divided into three categories according...

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Problems solved by technology

[0004] Chemical algae inhibitors such as copper sulfate are usually used in large doses, which will cause secondary pollution to the environment; physical algae inhibitors such as natural loess require too much work, and there is a problem of treating the symptoms but not the root cause, and the cost of treatment is high, making it difficult to use in practical applications. However, the dosage of biochemical algicides such as artemisinin is small, and only inhibits specific algae in the water body, which has high ecological security and will not cause secondary pollution to the environment; therefore, using the allelopathic effect between plants Research to curb algal blooms attracts attention

[0005] At present, there are some reports on the preparation method and algae-inhibiting performance of the algae-inhibiting agent; The algae inhibitor is easy to use, low in cost, and ideal in inhibiting algae, but it also has the following disadvantages: first, because the algae inhibitor contains aluminum and copper salts, it will cause secondary pollution to the water body and is also toxic to other aquatic organisms. There is no adverse reaction in the short term, and there may be long-term harm due to the accumulation and residue in aquatic organisms; secondly, the freeze-dried water celery powder used in this algastatic agent has insufficient concentration of effective algae inhibitory ingredients in practical applications, and effectively inhibits algae. The algae components are lost rapidly in the water body, the algae inhibition effect is poor in sustainability, and it is impossible to carry out long-term cyanobacteria control work; therefore, it is urgent to develop a modified algicide that can kill algae quickly, continuously inhibit algae, and be environmentally friendly

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