Sludge separated from wastewater can be turned into a useful commodity. Which of the following is one such commodity?
Artificial Soil
Biogas
Animal fodder
All of the above
Sludge can be decomposed to produce biogas. The biogas can be used as fuel for cooking and producing electricity.
Question 3
Which of the following is/are products of wastewater treatment? (a) Biogas (b) Sludge (c) Both biogas and sludge (d) Aerator
Sludge in separate tanks is decomposed to get biogas by