Device and method for purifying black and smelly water by using combined biotechnology

Abstract

The invention provides a device and a method for purifying black and smelly water by using combined biotechnology. The device comprises an aeration box, a reaction box, a plant absorption box, a nanoaeration pipe, a suspension basket, a water inlet pipe, a water outlet pipe, a peristaltic pump and an air pump. The aeration box, the reaction box and the plant absorption box are arranged with elevation difference in turn. After the black and smelly water body is aerated by the aeration box, microbial inoculum, growth promoter and filler are added into the reaction box to rapidly improve the microbial diversity and biomass of degrading pollutants in the water body, so that pollutants are efficiently removed and the water quality of the water body is improved. Finally, plants are planted intothe plant absorption box, and the plants further absorb pollutants in the water body, so that the water quality of the water body is further improved. The microbial inoculum is an indigenous microbial inoculum, the main components of the microbial inoculum are photosynthetic bacteria, nitrifying bacteria, actinomycetes and yeast, the biopromoter is biological biopromoter BE, the filler is elasticthree-dimensional filler, and the plant is Alternanthera chinensis. The invention has the advantages of simple implementation, low cost and no secondary pollution.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a device and method for purifying black and odorous water bodies using combined biological technology. Background technique [0002] Urban water bodies are the lifeblood of urban residents' lives, and play a vital role in urban landscape ecology and economic development. However, with the acceleration of urbanization and industrialization, a large amount of industrial wastewater and domestic sewage are directly discharged, causing eutrophication of the water body, and even causing the water body to turn black and smelly, eventually forming a black and smelly water body. The phenomenon of black odor is an extremely serious manifestation of water pollution. It is a biochemical phenomenon. The process is that when exogenous organic pollutants consume dissolved oxygen in the water body under the biochemical action of aerobic microorganisms, resulting in water hypoxia, Causes a large ...

AI Technical Summary

Problems solved by technology

[0005] At present, simple combination technologies such as bacterial agents + growth promoters, aeration + plants, bacterial agents + aeration are usually used to restore black and odorous water bodies by biological methods. Such simple combination technologies have a long repair period and good repair effect in repairing black and odorous water bodies. Persistence issues, etc.

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