Across
- 2. The amount of molecular oxygen dissolved in water
- 4. All the --- is collected through a wastewater collection system, from which it is transferred to wastewater treatment plants (WWTP)
- 5. The amount of cloudiness of a normally clear liquid due to the suspension of solid particles.
- 9. --- oxygen demand (COD) is a measurement of the oxygen required to oxidize soluble and particulate organic matter in water using a strong oxidizing agent
- 12. --- treatment for removal of biodegradable organic matter (in solution or suspension) and suspended solids. Disinfection is also typically included in the definition of conventional secondary treatment
- 15. Wastewater flowing into a treatment process or treatment plant
- 16. --- treatment for the removal of a portion of suspended solids and organic matter from the wastewater
- 17. A separate sewer that carries rain and melted snow from street runoff
Down
- 1. The used water and solids that flow to a treatment plant
- 3. Life of natural processes that require an environment with oxygen
- 6. --- oxygen demand (BOD) is the amount of oxygen required by aerobic biological, microorganisms to decompose organic material in a given water at a certain temperature over a time period
- 7. Miscroscopic animals and plants of simple cell structure that feed on the wastes in wastewater to remove organic pollutants
- 8. The biological composition of organic matter in sludge by anaerobic or aerobic microorganisms in wastewater
- 10. The process of adding air in wastewater treatment to provide oxygen for microorganisms and to keep solids in suspension
- 11. A single celled microscopic organisms that may be used in a variety of biological treatment processes
- 13. To provide protection to the wastewater treatment plant equipment
- 14. Oily or fatty matter