Q. What is the term used for reuse of sewage sludge?

View solution

Q. In which year was the term Biosolids introduced?

View solution

Q. What is the first step in the sewage treatment process?

View solution

Q. What is the amount of solids released into wastewater by human beings?

View solution

Q. What is the percentage of aerobically digested sludge?

View solution

Q. Wₛ = Wₛₚ + Wₛₛ

What does Wₛₚ stand for in the above equation?

View solution

Q. Sludge from the primary clarifier is ______

View solution

Q. How does the chemical sludge appear?

View solution

Q. How does the activated sludge appear?

View solution

Q. What is the % of dry solids assumed for a primary sludge from a settling tank at the outlet?

View solution

Q. What is the percentage of dry solids assumed for the sludge at the outlet of a centrifuge?

View solution

Q. What is the percentage of dry solids for the primary sludge assumed at the outlet of aerobic digester?

View solution

Q. In the case of anaerobic digestion, what is the percentage of dry solids for the primary sludge considered at the outlet?

View solution

Q. What is the concentration of polymer added to a belt filter press handling the primary sludge?

View solution

Q. Heat treatment involves heating of the sludge. The supernatant from the heat treatment system is rich in ___________

View solution

Q. What is the maximum temperature up to which conditioning can be conducted?

View solution

Q. What is the temperature at which sludge has to be frozen in order to carry out conditioning?

View solution

Q. What is the concentration of solids in the filtrate after thawing and freezing?

View solution

Q. Out of the below given methods which of these have the lowest capital cost?

View solution

Q. Out of the below given methods which of these have the highest cake solids concentration?

View solution