Preparation method of composite inorganic polymer stable algaecide and algae removing method

Abstract

The invention discloses a preparation method of a composite inorganic polymer stable algaecide and an algae removing method. The algaecide can effectively flocculate algae to form flocs; the algae can be removed from a water body quickly by the action of an external magnetic field; as magnetic powder and the flocs are closely combined, the flocs do not fall easily in a removing process; and the removing efficiency of the algae is improved. As the algaecide contains an efficient adsorbent, contaminants such as algal toxin, nitrogen and phosphorus in the water body can be adsorbed and enriched, and are removed together with the flocs. The composite algaecide has the advantages that the algaecide is stable, high in removing efficiency, and environment-friendly, and has potential application value and market competiveness.

Description

technical field [0001] The invention relates to a composite algaecide, in particular to a composite inorganic polymer stable algaecide used for removing algae in rivers, lakes and other water bodies. Background technique [0002] In recent years, the eutrophication of my country's water bodies has become very serious, and it has become a major problem in the environmental field that needs to be solved urgently. The algae flooding in rivers, lakes and seas has attracted widespread attention from all walks of life. Large-scale algae outbreaks have seriously damaged the balance and stability of aquatic ecosystems. threat to human survival. Only the economic losses caused by red tides to the coast amount to billions of yuan every year, so the algae outbreak has become a disaster. Currently more popular methods of algae removal can be roughly attributed to physical methods, chemical methods and biological methods. Physical method: Physical method (such as high-voltage ionizati...

AI Technical Summary

Problems solved by technology

[0005] Each of the above-mentioned algae removal methods has its own advantages and disadvantages, but the main disadvantage of clay algae removal is: only the algae are adsorbed and settled to the bottom of the water, and the algae that fall to the bottom of the water are still alive and will still survive and survive for a certain period of time. Secondly, the algae falling to the bottom of the water are in anoxic state, and if they rot, they will release hydrogen sulfide gas and algal toxins, which cannot be decomposed, and will lead to benthic organisms and spores after spreading in the water body. Organisms are smothered to death, seriously causing hypoxia in the sediment, causing secondary pollution and biological death, and even releasing harmful gases, further destroying the biological chain of the water body, and treating the symptoms but not the root cause

Although the composite of chitosan and magnetic powder can flocculate and effectively remove algae, its disadvantage is that the combination of magnetic powder and chitosan is not strong, resulting in the detachment of magnetic powder and floc, and the removal efficiency is affected.