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

Q. Out of the below given methods which of these is operated in batch process?

View solution

Q. Out of the below given methods which of these requires a grit removal prior to it?

View solution

Q. Out of the below given methods which of these produce an odour?

View solution

Q. Out of the below given methods in which of these organic matters is stabilized?

View solution

Q. Out of the below given methods in which of these does the sludge contain 70-80% moisture?

View solution

Q. What is the general size of belt available in the markets for a belt filter press?

View solution