WCW Fall Crossword

3. an environment where there is combined oxygen, but no free oxygen
4. total ____ nitrogen is the sum of organic nitrogen, ammonia (NH3), and ammonia (NH4+)
6. an environment where oxygen is introduced through fine bubble diffusers
8. bacteria use this to break down the nutrients into soluble organic matter
14. in this growth phase, there is a large amount of food available compared to the amount of bacteria, and it takes the bacteria a certain amount of time to respond to the available food
15. the type of sludge consisting of a mixture of wastewater and mixed liquor
16. respiration where the organic matter is broken down and the energy is captured, used or stored by bacteria
17. conversion of ammonia nitrogen to nitrates
19. the form of phosphate that reflects the inorganic portion
21. An environment where no free or combined oxygen is present
22. in an ORP reading, this type of voltage shows an environment losing electrons
23. the combination of catabolism and anabolism is known as bacteria ____

1. small, single-celled organisms approximately 1 micron in size3
2. in an ORP reading, this type of voltage shows a solution that attracts electrons such as strong oxidizers
5. type of bacteria that oxidize inorganic compounds and utilize inorganic carbon to perform all vital functions
7. a test used to determine the settling characteristics of mixed liquor
9. conversion of nitrates to nitrogen gas
10. in this growth phase, the bacteria have started consuming the substrate and are replicating exponentially
11. a bacteria population that can survive in one, two, or all environmental conditions
12. what an ORP meter measures
13. produced during microorganism respiration where it is released into the atmosphere
18. type of bacteria mostly associated with the degradation of the specific food group that contains nitrogen, hydrogen and sulphur elements
20. reproduction in which the organic matter is synthesized into new bacteria cells