10 Questions
Which type of filtration is effective for pathogen removal?
Rapid sand filtration
What is the purpose of filtration in water treatment?
To remove sediments
Why is chlorine disinfection alone not effective against some pathogens?
Chlorine reacts with organic matter
What type of water sources require filtration according to the US EPA?
Surface water under the direct influence of surface water
What is a disadvantage of slow sand filtration?
Requires a large area
What are the main objectives of filtration in water treatment?
Remove particulates, organic matter, and micro-organisms and meet turbidity standards.
What are the reasons for using filtration in surface water treatment or groundwater under the direct influence of surface water (GWUDI)?
US EPA requires filtration (or equally effective alternatives) to ensure pathogen removal.
What are the differences between slow sand filtration and rapid sand filtration?
Slow sand filtration requires a large area, can fail with run-off tiny clays, and relies on physical and biological processes. Rapid sand filtration does not require biofilm and removes biofilm by backwash.
What is the importance of filtration rate in water treatment?
Filtration rate affects the efficiency of pathogen removal and the rate of clogging.
What is the purpose of backwashing in rapid sand filtration?
To remove the biofilm and prevent clogging.
Test your knowledge on filtration systems and their importance in water treatment. Learn about removing particulates, organic matter, and micro-organisms to meet turbidity standards. Understand why chlorine disinfection alone may not be effective for certain pathogens. Discover the US EPA's requirement for filtration in surface water treatment.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
