A kind of multifunctional composite algae removal particle

Abstract

The invention discloses a multifunctional composite algae-removal particle. The particle is prepared from the following components in weight percentage: 0.08-3% of algaecide, 0.1-2% of sodium percarbonate crystal, 2-6% lithium magnesium silicate, 2-3% of potassium silicate, 20-30% of aqueous polyurethane coating, 10-30% of water-swellable composition, 0.1-0.3% of composite foaming agent, 0.2-0.5% of anredera extract, 0.1-0.2% of virgatus extract, 2-5% of microporous ceramic powder and water-soluble polymers as the balance. The preparation method of the particle comprises the steps of crushing sodium percarbonate crystals, lithium magnesium silicate and potassium silicate, mixing up obtained powders with the algaecide, adopting obtained materials as a core body, coating the core body with the aqueous polyurethane coating, coating again with the water-swellable composition, and coating for a third time with the water-soluble polymers to obtain the algae-removal particle. The prepared algae-removal particle is novel in form, and the targeted delivery of the prepared algae-removal particle is enabled. Meanwhile, the prepared algae-removal particle is large in local application concentration and can thoroughly remove algae. The water pollution can be reduced by the algae-removal particle.

Description

technical field

[0001] The invention relates to the technical field of environmental protection, in particular to a multifunctional composite algae-removing granule. Background technique

[0002] A large amount of domestic sewage and industrial wastewater rich in N and P are discharged into rivers and lakes, and then collected into the ocean, causing eutrophication of the water body, causing algae and other plankton to multiply rapidly and causing serious environmental disasters. It occurs frequently in various lakes, rivers and sea areas in my country. The massive reproduction of algae not only seriously hinders the water surface traffic, but also seriously damages the water environment and endangers the safety of the ecological environment.

[0003] After long-term research and practice, three main types of algae removal technologies have been formed by means of physics, chemistry and biology.

[0004] Physical methods can be divided into removal method and killing method...