During the secondary treatment, the aeration allows vigorous growth of useful aerobic microbes into floes (masses of bacterial cells in association with fungalfilaments forming mesh-like structures). As they grow, the microbes consume a major part of the organic matter in the effluent, so BOD is significantly reduced.
During the secondary treatment of the primary effluent. How does the significant decrease in BOD occur?
Answers
Doshi
During the secondary treatment, the aeration allows vigorous growth of useful aerobic microbes into floes (masses of bacterial cells in association with fungalfilaments forming mesh-like structures). As they grow, the microbes consume a major part of the organic matter in the effluent, so BOD is significantly reduced.