Across
- 5. one of the natural sources of raw water with rivers and lakes?
- 8. water is allowed to sit allowing heavier particles to settle at the bottom of the tank?
- 9. Adding chemicals to water to bind and agglomerate fine particles, making them easier to remove?
Down
- 1. Initial removal of large debries and particles?
- 2. In case of this you need to have emergency preparedness to ensure safe water supply
- 3. With right PH adjustment you can prevent this?
- 4. residual waste product generated during sedimentation and filtration
- 6. Adding chemicals to kill or deactivate harmful microorganismms like bacteria and viruses?
- 7. passing water trough various layers of sand, gravel or carbon to remove remaining suspended particles?