22 public questions tagged with this topic.
Aerobic heterotrophic bacteria form microbial flocs in aeration tanks, which help in the biological treatment of sewage.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Human Welfare - Overview and Significance
Biological treatment in sewage plants uses microbes to degrade organic waste.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Human Welfare - Overview and Significance
Methanogens are involved in anaerobic sludge digestion, not in secondary treatment.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Methanogenic bacteria help in the anaerobic digestion of sludge, producing methane gas as a byproduct.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Methanogens are not involved in primary treatment; they are used in anaerobic digestion of sludge.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Methanogens are involved in anaerobic sludge digestion, not secondary treatment.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Tertiary treatment involves chemical and physical processes in addition to microbial degradation.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Methanogens are involved in anaerobic digestion of sludge, not in secondary treatment.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Tertiary treatment involves chemical and physical processes along with microbial action.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Aerobic heterotrophic bacteria degrade organic matter in sewage, reducing its Biochemical Oxygen Demand (BOD).
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Sludge digestion is carried out by anaerobic bacteria, not aerobic bacteria.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
Aerobic bacteria in sewage treatment plants degrade organic matter, reducing BOD levels.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Sewage Treatment - Primary Secondary Activated Sludge
