Across
- 3. is the process of removing large objects like plastic and leaves from wastewater
- 4. filtration helps remove tiny suspended particles before disinfection.
- 6. treated water is returned to rivers, lakes, or reused.
- 10. process helps remove nutrients like nitrogen and phosphorus from water.
- 11. is a chemical commonly used for disinfecting treated wastewater.
- 12. treatment removes heavy metals, pharmaceuticals, and other pollutants.
Down
- 1. is a byproduct of wastewater treatment that can be used as fertilizer.
- 2. tank is used in primary treatment to separate solids from liquids.
- 5. aeration is used to provide oxygen for bacteria in biological treatment.
- 7. treatment, sedimentation allows solids to settle at the bottom of tanks.
- 8. sludge is the solid waste collected from wastewater treatment.
- 9. treatment uses bacteria to break down organic waste in wastewater.