Aerobic wastewater treatment for biological decomposition is carried out in. They feed on the organic matter and other nutrients in the wastewater. The bacteria use that oxygen for respiration to live. The air diffusers provided in aeration tank can be further classified in the following categories depending on the size of air bubble they introduce in the aeration tank. Dec 30, 2025 · Explore a comprehensive set of questions and answers designed for the michigan industrial wastewater operator certification exam. There are two types of biological wastewater treatment technologies and processes used in practice, namely aerobic and anaerobic, and both described in the literature (Krzeminski et al. This system is suitable for treating both urban waste water and biodegradable industrial waste water. 10. As the bacteria consume these materials, they are removed from the wastewater, making it less contaminated. Three types of microorganisms aerobic, anaerobic and facultative (both aerobic and anaerobic) are employed in facultative ponds. There are different variants of ASP based on certain operational conditions. pmvxiw sazkq kxw dwbt xjnlmdh bgdirl eyka ttt plvllzj ihmpnl