Wastewater Biology Study Guide & Exam Review | Environmental Engineering Microbiology

Wastewater Biology 2026




[Date] Wastewater
Biology

, Wastewater Biology 2026




 Wastewater Biology
 Organic -Answer:Based on carbon and comes from living or once–living things



 Inorganic -Answer:not from living things and usually no carbon (with a few exceptions)



 What is a Electron Accepter-Answer:An electron acceptor allows bacteria to “breathe” and
produce energy.
 It's not what they eat.



 What are the Terminal Electron Acceptors?-Answer:Dissolved oxygen (DO)
 Nitrite
 Nitrate
 Sulfate
 Carbon Dioxide



 Terminal Electron Acceptor for Aerobic?-Answer:Oxygen (O₂)



 Terminal Electron Acceptor for Anoxic?-Answer:Nitrate (NO₃⁻)



 Terminal Electron Acceptor for Anaerobic?-Answer:Carbon dioxide, sulfate, organic compounds



 What is Organic carbon? Who use it?-Answer:Sugars, fats, proteins, BOD




 Heterotrophs & facultative heterotrophs



 What are Inorganic carbon?Who use it?-Answer:Carbon dioxide (CO₂), bicarbonate (HCO₃⁻)
 Autotrophs & nitrifiers



 Carbon dioxide-Answer:CO₂
 Waste gas from energy use