One of Maryland's top environmental priorities is upgrading wastewater treatment plants for nutrient removal. This class will discuss various automation options and operating practices currently used and available for removing nutrients from wastewater. The usage and cost of physical and biological technologies will be addressed. Dissolved oxygen and pH/ORP probes along with nitrate, ammonia, and phosphate analyzers will be discussed as to their role in automated process control. Other topics covered will include: the effluent concentration required as to the appropriateness of Enhanced Nutrient Removal (ENR) techniques; the importance of methanol dosing or another carbon source as a food source for denitrifying organisms; metal salt addition and effluent filtration for phosphorus removal; nutrient removal regulations pertinent to protecting the Chesapeake Bay; and operational issues related to TN and TP removal with recommended corrections.