In-situ treatment technology for black and odorous water body

Abstract

The invention discloses an in-situ treatment technology for a black and odorous water body. A controlled release bacteria product and artificial seaweeds are simultaneously fed to a to-be-treated black and odorous water body at a set ratio, wherein the controlled release bacteria product is a solid product with a porous structure and is prepared from the following components in parts by weight: 25-45 parts of volcanic ashes, 20-30 parts of flyash, 10-20 parts of cellulose, 0.5-1 part of lauryl sodium sulfate, 5-15 parts of gypsum and 15-30 parts of composite bacteria liquid, wherein the composite bacteria liquid comprises the raw materials by viable counts: (1-2)*10<9>CFU / mL of photosynthetic bacteria, (3-4)*10<9>CFU / mL of nitrifying bacteria, (2-3)*10<9>CFU / mL of denitrifying bacteria, (4-6)*10<9>CFU / mL of ammonifiers and (5-10)*10<9>CFU / mL of phosphorus accumulating bacteria. For treatment of the black and odorous water body, the homemade controlled release bacteria product is selected to be combined with the artificial seaweeds after soaking the bacteria liquid, so that the in-situ treatment technology is high in treatment efficiency, small in occupied land, low in investment cost, free of energy consumption, free of operation cost, low in sludge quantity and high in anti-shock loading capability, and a system is stable and long in service life.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an in-situ treatment process for black and odorous water bodies. Background technique [0002] The black and odorous water body is composed of two parts: the odorous water and the odorous mud at the bottom. Urban black and odorous water body refers to the general term for water bodies that present unpleasant colors (black or pan-black) and / or emit unpleasant odors (stinky or stench) in urban built-up areas. [0003] The phenomenon of urban water pollution in my country began to appear as early as the 1970s, and a few urban water bodies began to turn black and smelly. Especially in recent years, urban water bodies have generally been seriously polluted, and the problem of black and odorous water bodies is prominent. The greater hazards of black and odorous water bodies: such as destroying urban landscapes; destroying water body functions and values; destroying water b...

AI Technical Summary

Problems solved by technology

In response to this, Zhao Yaxun, Ouyang Wuye, Li Yanping and others disclosed a method for microbial treatment of black and odorous rivers and in-situ ecological restoration. species are matched and combined to form a composite microbial agent, and then the river sewage is treated with the matched composite microbial agent, wherein the composite microbial agent contains photosynthetic bacteria, Bacillus subtilis, Bacillus lateral sporosum, Bacillus licheniformis, denitrifying bacteria , lactic acid bacteria and yeast, but the bacteria are directly treated by adding bacterial agents. The disadvantages of this method of treating black and odorous water are: large dosage, high investment cost, long treatment time and slow effect. The effect is not stable

[0006] To sum up, in the prior art, there is still a lack of effective solutions for the effective treatment of black and odorous water bodies with deep water areas and shallow water areas.

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