The sewage treatment process in which a portion of the decomposer bacteria present in the waste is recycled and reused in the beginning of the next round of the process is called ___ .
The sewage treatment process in which a portion of the decomposer bacteria present in the waste is recycled and reused in the beginning of the next round of the process is called
The correct option is C Activated sludge treatment
The word “activated sludge system” is derived from the practice of adding the incoming sewage of the sludge from a previous batch. This sludge inoculum consists of large numbers of metabolizing bacteria, together with yeasts, moulds and protozoa. An especially important ingredient of the sludge is species of Zoogloea bacteria, which form flocculent masses (floc) in aeration tanks. The activity of these aerobic microorganisms oxidises much of the effluent’s organic matter into carbon dioxide and water. When the aeration phase is completed, the floc (secondary sludge) is allowed to settle to the bottom just as the primary sludge settles in the primary treatment.
The word “activated sludge system” is derived from the practice of adding the incoming sewage of the sludge from a previous batch. This sludge inoculum consists of large numbers of metabolizing bacteria, together with yeasts, moulds and protozoa. An especially important ingredient of the sludge is species of Zoogloea bacteria, which form flocculent masses (floc) in aeration tanks. The activity of these aerobic microorganisms oxidises much of the effluent’s organic matter into carbon dioxide and water. When the aeration phase is completed, the floc (secondary sludge) is allowed to settle to the bottom just as the primary sludge settles in the primary treatment.
