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Author Question: Bar screens and grit chambers are used a. only in primary wastewater treatment plants b. in most ... (Read 79 times)

ts19998

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on: Jul 26, 2018
Bar screens and grit chambers are used
 
  a. only in primary wastewater treatment plants
  b. in most municipal wastewater treatment plants
  c. very rarely due to applications of modern technology
  d. only in advanced wastewater treatment plants
  e. in most municipal water supply facilities

Question 2

The BOD of wastewater is determined by
 
  a. evaporating the sample and weighing the residue
  b. filtering the sample and weighing the trapped solids
  c. heating the sample for 5 days and then measuring the DO
  d. measuring the DO consumed in a diluted sample after 5 days
  e. measuring the suspended solids after 5 days of settling


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qytan

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Reply #1 on: Jul 26, 2018
Answer to Question 1

b

Answer to Question 2

d


ts19998

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Reply #2 on: Jul 26, 2018
Thanks


qytan

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Reply #3 on: Jul 26, 2018
Welcome :)


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