Related Questions

Which of the following is used as a coagulant in treating turbid water?
A Chlorine
B Ferric sulphate
C Calcium sulphate
D Activated carbon
For treating the sewage of a large city, you will recommend
A A sedimentation tank and an activated sludge treatment plant
B A plant consisting of Imhoff tanks with low rate trickling filters
C Sedimentation tanks with high rate trickling filters
D None of these
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?
A Centrifugal pump
B Pneumatic ejector
C Reciprocating pump
D None of these
Which of the following pumps is used to pump sewage solids with liquid sewage without clogging the pump is?
A Centrifugal pump
B Pneumatic ejector
C Reciprocating pump
D None of these
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.
A Filtration
B Digestion
C Sedimentation
D Both B and C
Fine grit present in sewage is removed in the __________ during sewage treatment.
A Grit chamber
B Detritus tank
C Trickling filter
D Skimming tank
__________ substances present in sewage are removed in grit chamber during sewage treatment.
A Organic
B Fatty
C Inorganic
D Dissolved
Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is
A H2
B CH4
C CO2
D N2
Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
A Ammonium alum
B Potassium alum
C Both A & B
D Neither A nor B
Which of the following is used as a coagulant in water treatment?
A Chloramine
B Chlorine
C Ferrous sulphate
D Hydrogen peroxide

Next steps