Podcast
Questions and Answers
What is the first stage of water treatment?
What is the first stage of water treatment?
- Filtration
- Removal of heavy metals
- Disinfection
- Removal of suspended solids (correct)
What are suspended solids?
What are suspended solids?
- Particles smaller than 2 microns that dissolve as ions
- Particles smaller than 2 microns that do not dissolve as ions
- Particles larger than 2 microns that do not dissolve as ions (correct)
- Particles larger than 2 microns that dissolve as ions
Why do suspended solids need to be removed from water?
Why do suspended solids need to be removed from water?
- To increase the levels of heavy metals
- To reduce the cost of filtration
- To increase the velocity of water
- To prevent operational issues like deposits and erosion (correct)
Where is water likely to have higher levels of suspended solids?
Where is water likely to have higher levels of suspended solids?
What is the purpose of a settling pond or basin in water treatment?
What is the purpose of a settling pond or basin in water treatment?
What is a clarifier in water treatment?
What is a clarifier in water treatment?
How are suspended solids removed from ground water?
How are suspended solids removed from ground water?
What is the primary benefit of removing suspended solids from water?
What is the primary benefit of removing suspended solids from water?
Which stage of water treatment removes other harmful substances like heavy metals?
Which stage of water treatment removes other harmful substances like heavy metals?
How does a clarifier differ from a settling pond?
How does a clarifier differ from a settling pond?
What is the residence time for water in a clarifier?
What is the residence time for water in a clarifier?
What is added to speed the settling time for colloidal particles in a clarifier?
What is added to speed the settling time for colloidal particles in a clarifier?
What are the most common types of filters mentioned in the text?
What are the most common types of filters mentioned in the text?
What is the purpose of backwashing in a filter?
What is the purpose of backwashing in a filter?
What is a common material used for the filter medium in a pressure filter?
What is a common material used for the filter medium in a pressure filter?
What does an activated carbon filter effectively remove from water?
What does an activated carbon filter effectively remove from water?
How is filter cake removed in a tubular filter during backwashing?
How is filter cake removed in a tubular filter during backwashing?
What indicates that a cartridge filter needs to be replaced?
What indicates that a cartridge filter needs to be replaced?
What happens during backwashing of a filter if excessive flow rate is used?
What happens during backwashing of a filter if excessive flow rate is used?
What is transformed into activated carbon by heating with steam?
What is transformed into activated carbon by heating with steam?
