Podcast
Questions and Answers
What is the primary purpose of the coagulation/flocculation process in conventional water treatment?
What is the primary purpose of the coagulation/flocculation process in conventional water treatment?
- To disinfect the raw water and kill any germs
- To filter out microscopic impurities from the water
- To remove the heavy flocs that settle at the bottom of the tanks
- To remove dissolved minerals and dirt from the raw water (correct)
What is the main purpose of the sedimentation step in conventional water treatment?
What is the main purpose of the sedimentation step in conventional water treatment?
- To disinfect the water by injecting it with chlorine gas
- To remove the flocs that float to the top of the settling basins
- To remove the heavy flocs that sink to the bottom of the settling basins (correct)
- To filter out microscopic impurities from the water
Which type of water source is not mentioned in the text as a source for conventional water treatment?
Which type of water source is not mentioned in the text as a source for conventional water treatment?
- Rainwater
- Underground water from shallow and deep springs and wells
- Surface water from streams and rivers
- Wastewater from industrial processes (correct)
What is the purpose of the final disinfection/chlorination step in conventional water treatment?
What is the purpose of the final disinfection/chlorination step in conventional water treatment?
Which of the following is NOT considered a type of dissolved impurity in natural waters according to the text?
Which of the following is NOT considered a type of dissolved impurity in natural waters according to the text?
What is the main difference between hard water and soft water as described in the text?
What is the main difference between hard water and soft water as described in the text?
What is the primary purpose of desalination?
What is the primary purpose of desalination?
Which process is used in modern reverse-osmosis facilities for desalination?
Which process is used in modern reverse-osmosis facilities for desalination?
What is the ratio of seawater needed to produce one gallon of freshwater through reverse osmosis?
What is the ratio of seawater needed to produce one gallon of freshwater through reverse osmosis?
What is the primary use of water in industry?
What is the primary use of water in industry?
What is the purpose of water treatment processes in a water supply system?
What is the purpose of water treatment processes in a water supply system?
What is the principle behind the reverse osmosis process?
What is the principle behind the reverse osmosis process?
