Fermentation agent and compound microbial agent for treating black and odorous water body, preparation methods and application

Abstract

The invention provides a fermentation agent used for treating a black and odorous water body. The fermentation agent used for treating the black and odorous water body is prepared from freeze-dried powder of a dominant photosynthetic bacteria strain screened out from the black and odorous water body and quicklime powder, brown sugar, sodium bicarbonate, edible salt, yeast powder, straw powder, plant ash and vanadium pentoxide which are used as culture medium components. The invention further provides a compound microbial agent used for treating the black and odorous water body; the compound microbial agent used for treating the black and odorous water body is prepared by conducting anaerobic lucifugal fermentation on the fermentation agent, straw powder and rice husk powder. The inventionfurther provides preparation methods of the fermentation agent and the compound microbial agent, application of the fermentation agent and the compound microbial agent to treatment of the black and odorous water body and a method for treating the black and odorous water body. The dominant photosynthetic bacteria strain in the compound microbial agent can remove organic matters, ammonia nitrogen, total phosphorus, hydrogen sulfide and the like in water, dissolved oxygen in the water is increased, and a large amount of lactic acid bacteria in the compound microbial agent can absorb, decompose and convert organic matters in the black and odorous water body. The compound microbial agent can be directly put into the black and odorous water body, use is simple, convenient and efficient, raw material resources of the straw powder and the rice husk powder for preparing the compound microbial agent are wide, and the cost is low.

Description

technical field [0001] The present invention relates to the field of water body pollution treatment, in particular to a starter for treating black and odorous water and a preparation method thereof, a composite bacterial agent for treating black and odorous water and a preparation method thereof, the starter and the composite bacteria The invention discloses the use of the agent for controlling black and odorous water bodies, and the method for controlling black and odorous water bodies. Background technique [0002] Due to intensive human activities and irregular discharge of pollutants such as domestic garbage and domestic sewage, water bodies, especially urban water bodies, are seriously polluted, resulting in water body pollution such as eutrophication, algal blooms, and black and odorous water bodies. Black and odorous water body is a biochemical phenomenon. When the water body is severely polluted by organic matter, the aerobic decomposition of organic matter will caus...

AI Technical Summary

Problems solved by technology

However, most of the commonly used microbial strains on the market are exogenous strains, which are not suitable for the specific black and odorous water environment, and it is difficult to maintain high activity and survive for a long time in the water body after being put in.