Chitosan and illite composite algicide and application thereof

Abstract

The invention relates to safe algicide capable of rapidly settling algae, and belongs to the field of environmental protection. The algicide is suitable for small landscape water body algae removal with blue-green algae being the dominant species. Chitosan and illite composite algicide comprises, by weight, 5 parts of chitosan and 200-1200 parts of illite powder or 1-25 parts of chitosan and 1000 parts of illite powder. First, the chitosan is dissolved through hydrochloric acid, and then the illite powder of 60-160 meshes is added. The chitosan and the illite powder used for the chitosan and illite composite algicide are free of poisoning; although the chitosan is dissolved through a dilute HCL solution of 0.05-0.5%, the pH value of a water body is not changed substantially within an addition range. The algicide is thorough and rapid in algae removal, the usage amount of the algicide is small, algal blooms can be safely and effectively controlled, influences on the environment are small, no secondary pollution exists, and the algicide is safe.

Description

technical field [0001] The invention relates to an algaecide, which belongs to the field of environmental protection, in particular to a safe algaecide capable of rapidly subsiding algae, and is suitable for algae removal in small-scale landscape water bodies where cyanobacteria is the dominant species. Background technique [0002] The landscape water body is an important part of the living environment. Due to the heavy burden caused by the urbanization development on the landscape water body and the limitations of the landscape water body itself, the discharged pollutants greatly exceed the carrying capacity of the landscape water body, resulting in the current landscape water body in my country. The widespread deterioration of water quality. It even causes eutrophication of the water body, causing the abnormal reproduction of planktonic algae, leading to the outbreak of "water bloom", destroying the freshwater ecosystem, causing the loss of its landscape value, and serious...

AI Technical Summary

Problems solved by technology

[0004] The two algaecides with chitosan and fly ash autoclaved brick powder as the main components previously applied by the applicant of the present invention can effectively remove algae cells, are convenient to use, and have simple implementation methods, but the used fly ash autoclaved bricks The powder must be pretreated, the operation process is cumbersome, and the cost of flocculant is increased