Bacterial agent treatment process for livestock breeding sewage

Abstract

The invention discloses a bacterial agent treatment process for livestock breeding sewage. The device comprises an aerobic bacteria tank, an anaerobic bacteria tank, a grating, a regulating reservoir,a flocculation basin, an anaerobic reaction tank, an aerobic aeration bio-filter and a methane recovery device. The process comprises the following operating steps: preparing a culture medium; culturing anaerobic bacteria; culturing aerobic bacteria; culturing flocculating bacteria; performing microbial species expanding, intensifying, and performing habituated culture; regulating the pH value ofthe sewage in the regulating reservoir; enabling the sewage to enter the flocculation basin, and adding the flocculating bacteria; enabling the sewage to enter the anaerobic reaction tank to stay for8-10 hours, stirring, and recovering methane; enabling the sewage to flow into the aerobic aeration bio-filter, and passing through the three-layer special-shaped fiber nylon filter cloth; performingsecondary filtering through the gravity action, performing ultraviolet lamp disinfection, discharging the sewage after detection, and enabling the sewage to return to the anaerobic reaction tank if the sewage does not reach the standard. The sewage treatment effect is excellent, any chemical agent is not added, and the introduction of secondary pollution is avoided; the throughput, stirred volume, sewage flow amount and the like are low, the emission of stink and residual sludge is low, and energy conservation and emission reduction can be realized.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a bacterial agent treatment process for livestock and poultry breeding sewage. Background technique [0002] The main pollutants of industrial sewage or municipal sewage are oxygen-consuming pollutants (carbohydrates, proteins, oils, lignin and other organic substances), toxic pollutants (inorganic anions, organic pesticides, etc.), inorganic pollutants (acids, alkalis, salts, etc. ) and pathogenic contaminants. Traditional sewage treatment methods include stirring, aeration oxidation treatment, anaerobic anaerobic treatment and sedimentation steps. Oxidation treatment and anaerobic treatment are essentially the process of microbial degradation of pollutants in water, usually natural bacteria or artificially added a small amount Bacteria, depending on the type of pollutants, some chemical reagents need to be added, and the precipitation process usually adopts natural standing or add...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent (CN201810012965.0) is a wastewater treatment device that uses a mixture of anaerobic bacteria, facultative bacteria or aerobic bacteria as a microbial water purifier to treat sewage to achieve good sewage treatment effects, but the flocculant used It is an inorganic flocculant and an organic polymer flocculant, which may cause secondary pollution to the environment

Chinese patent (CN201611182630.0) is an industrial wastewater treatment process that uses a mixed bacterial agent to treat wastewater, but because the bacteria have not been domesticated, the ability of the bacteria to treat wastewater will be low, and the discharged wastewater will not meet the treatment standards.

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