Wastewater Treatment MCQ – Environmental Engineering

41. The detention period in primary sedimentation tank in a sewage treatment plant is

  1. 1 to 3 hrs
  2. 4 to 8 hrs
  3. 8 to 12 hrs
  4. 12 to 18 hrs
Answer
Answer. a

42. The carbonaceous analyzer, which provides aqueous sample used for evaluating the total organic carbon in wastewater is patented by

  1. Mitsui chemicals
  2. Dow chemical company
  3. Reliance industries
  4. Solvary chemical company
Answer
Answer. b
Pages: 1 2 3 4