Method for removing algae by using inorganic solid peroxide for inducing peroxymonosulfate to generate singlet oxygen

Abstract

The invention provides a method for removing algae by using inorganic solid peroxide for inducing peroxymonosulfate to generate singlet oxygen and relates to an algae removal method. The algae removal method is used for solving the problems that poisonous byproducts such as trihalomethane are easily generated in a prechlorination algae removal process, chlorine is inconvenient to transport and store, the potential safety hazards exist, and an ozone preoxidation algae removal method needs additional equipment and is high in investment and operating cost and complicated in operation. The algae removal method comprises the following steps: adding the inorganic solid peroxide and the peroxymonosulfate to algae-containing water, stirring, sequentially coagulating, precipitating, filtering and sterilizing so as to complete the algae removal. According to the algae removal method, the generated high-activity singlet oxygen rapidly acts on the algae, kills algae cells and inactivates the algae, so that the purpose of removing algae is reached. As solid reagents, the inorganic solid peroxide and the peroxymonosulfate can be directly added for use without need of additional equipment. The reverse osmosis concentrated solution treatment method has the advantages that the operation is simple and practicable, the reagents are convenient to transport and store, low in cost and easy to obtain, no poisonous and harmful byproducts are generated in the algae removal process, and the reagents can be used on a large scale in water plants.

Description

technical field

[0001] The invention relates to a method for removing algae, in particular to a water treatment method for using inorganic solid peroxide to induce persulfate to generate singlet oxygen for removing algae. Background technique

[0002] In recent years, the algal blooms caused by the eutrophication of rivers, lakes and seas have attracted widespread attention from all walks of life. The flooding of algae not only affects the water landscape and normal production of aquaculture, but also poses a threat to the living environment of human beings.

[0003] Algae and its by-products have brought many adverse effects to the traditional water purification process: (1) causing the deterioration of water quality and causing disgusting smell and taste in drinking water; (2) the death of algae sinking to the bottom to form humus, increasing the water (3) Algae and its soluble metabolites are the precursors of chlorination disinfection by-products; (4) The turbidity forme...

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