Method for suppressing growth of algae at effluent weir of secondary sedimentation tank

Abstract

The invention discloses a method for suppressing the growth of algae at an effluent weir of a secondary sedimentation tank. The effluent weir of the secondary sedimentation tank is covered by shading and ventilating facility so as to both shade the effluent weir to prevent the growth and propagation of the algae and introduce air into the water body of the effluent weir without manual operation to keep normal water quality of the effluent water. The shading and ventilating facility used in the method can be one consisting of a plurality of shading and ventilating cover plates, assembled by a plurality of lower cover plates and a plurality of upper cover plates, consisting of a plurality of main cover plates, decks and support columns or consisting of a plurality of z-shaped plates.

Description

technical field [0001] The invention belongs to the field of algae treatment of outlet weirs of secondary sedimentation tanks, and relates to a method for inhibiting the growth of algae in outlet weirs of secondary sedimentation tanks. Background technique [0002] At present, the actual operation status of many sewage treatment plants shows that the secondary pollution caused by the growth of algae at the outlet weir of the secondary sedimentation tank is still a difficult problem. The traditional methods of controlling algae include mechanical salvage, filtration, chemical algae removal, etc. Although these methods can inhibit the growth of algae to a certain extent, there are the following problems: 1. The speed of mechanical salvage is much faster than that of algae. If the growth rate of algae is not checked, it will not only cost a lot of manpower and material resources, but also have little effect. 2. Although the filtering method is effective, it needs to disassembl...

AI Technical Summary

Problems solved by technology

Traditional methods of controlling algae include mechanical salvage, filtration, and chemical algae removal. Although these methods can inhibit algae growth to a certain extent, there are the following problems: 1. The speed of mechanical salvage is much faster than that of algae. If the growth rate of algae is not high, it will not only cost a lot of manpower and material resources, but also have little effect

2. Although the filtration method has a good effect, it needs to disassemble and wash the filter screen frequently and disassemble and assemble the machine frequently, which is not only cumbersome to operate, but also easily damages the machine

3. The chemical algae removal method needs to add chemical agents to the water. Some chemical agents are not only inhibitory to algae, but also toxic to other organisms, which will cause water pollution.

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