This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Bar screens and grit chambers are used a. only in primary wastewater treatment plants b. in most ... (Read 76 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

qytan

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 26, 2018
Answer to Question 1

b

Answer to Question 2

d


ts19998

  • Hero Member
  • *****
  • Posts: 531
Reply #2 on: Jul 26, 2018
Thanks


qytan

  • Sr. Member
  • ****
  • Posts: 336
Reply #3 on: Jul 26, 2018
Welcome :)


« previous next »
 

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
Increased exposure to cupric oxide bulk particles (BPs) and nanoparticles (NPs) by radish plants Increased exposure to cupric oxide bulk particles (BPs) and nanoparticles (NPs) by radish plants
Plants Plants
The Atmosphere Screens Earth from Harmful Solar Radiation The Atmosphere Screens Earth from Harmful Solar Radiation
IgG after treatment with urea plus mercaptoethanol. IgG after treatment with urea plus mercaptoethanol.
Common Oral Lesions/Conditions Associated with HIV Infections and Treatment Guidelines Common Oral Lesions/Conditions Associated with HIV Infections and Treatment Guidelines
Video: Glucose Evaluation Procedure

For a complete list of videos, visit our video library