Collection systems with long residence will have anaerobic zones. Under highly negative redox conditions (no oxygen or nitrate/nitrite present), microorganisms that can utilize sulfate and organics as electron acceptors begin to grow on influent organics. We call these organisms sulfate reducing bacteria (SRB) and fermentative bacteria. The SRB are responsible for generation of sulfides and H2S, while the fermentative bacteria produce short chain volatile fatty acids. Both cause odors with the sulfide smelling of rotten eggs and the volatile fatty acids having sharp, rancid odors. I will list the most common control methods used in collection systems.
Erik Rumbaugh has been involved in biological waste treatment for over 20 years. He has worked with industrial and municipal wastewater facilities to ensure optimal performance of their treatment systems. He is a founder of Aster Bio (www.asterbio.com) specializing in biological waste treatment.
Click to set custom HTML