Related Questions

For detecting the nitrites in the sewage, the matching colour may be developed by adding
A Potassium permanganate
B Sulphuric acid and napthamine
C Phenol-di -sulphuric acid potassium hydroxide
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
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
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
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
In sewage treatment, its sedimentation is speeded up by commonly adding
A Hydrochloric acid
B Lime
C Copper sulphate
D Sodium sulphate
Contraindications of nitrates are
A Hypotension
B Right ventricular infarction
C Hypertrophic obstructive cardiomyopathy
D Pregnancy
E Diabetic nephropathy
Plants absorb dissolved nitrates from soil and convert them into
A free nitrogen
B urea
C ammonia
D proteins

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