4 DAYS, Mon – Thurs, 8am – 3:30pm, 26 hours, 2.6 CEUs. The objective of this class is to give activated sludge front-line supervisors and operators, and process control operators and engineers, a more in-depth understanding of the activated sludge process. With this understanding, effluent quality variability and process energy usage can be reduced. Topics to be presented include: wastewater characterization, biological N & P removal, the importance of sludge quality, measuring and controlling sludge quality, WAS flow control, BOD conversion vs. removal, RAS flow optimization, secondary clarifier performance diagnostic testing, and a state point analysis.
Like most wastewater treatment processes, more and more is being asked, and expected, of anaerobic digestion. There is increased emphasis on greater methane and energy production; new, more advanced, digestion systems are more highly loaded, and there is increased use of other feedstocks, besides raw and biological sludges, like FOG and food wastes. As a result, there is a need for a more in-depth understanding of the factors that affect anaerobic digester performance. While most of those factors aren’t in the digesters, operational control and monitoring are increasingly important. In addition, struvite formation, as both a nuisance and a resource, is discussed. The class does not address digester design or equipment associated with digesters. While routine monitoring is discussed, the class does not delve into analytical methods and procedures.