Questions and Answers
What is the purpose of aerating a water treatment plant?
To add oxygen to the water as organic matter decays
How does aeration help in water treatment?
By promoting the settling of 'grit'
What is the role of scrubbing action in aeration?
Remove dissolved gases like carbon dioxide from water
How is oxidation used in water treatment?
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What happens to heavy floc particles during sedimentation in a water treatment plant?
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Why is sludge collected at the bottom of sedimentation tanks?
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What is the main function of the mechanical sludge scraping devices in circular and rectangular tanks?
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In which type of tank is the main sludge removal from the top of the sludge basket?
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What is the purpose of removing lighter materials such as grease, oils, plastics, and soap from sludge?
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Which method is used to remove bacteria, reduce turbidity, and remove most solid particles from liquid sewage?
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What does a circular radial-flow tank typically consist of?
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What is the main function of filtering liquid sewage through sand by gravity in sewage treatment?
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