Conversion Or Removal of Nitrogen From Sewage

Nutrient removal from wastewater treatment plants, especially nitrogen, is vital to protect the health of the Chesapeake Bay. As a  consequence, the U.S. Environmental Protection Agency has set new nutrient water quality standards for the Bay. This class is designed to review the principles of biologically converting ammonium-N to NO3-N, converting NO3-N to N2 gas, defining and examining traditional process control tests, performing and interpreting each test, and recording results. Class participants' will learn how to apply operational skills for nitrogen removal (or conversion to a less objectionable form) from wastewater, process control techniques for food-to-mass ratio, mean cell residence time, settleability, sludge volume index, oxygen uptake rate, and sludge blanket depth. Other topics include: Nitrogen Forms and Sources, Biological Nitrification and Denitrification Processes, Breakpoint Chlorination, Ion Exchange, Ammonia Stripping, and Biological and Enhanced Phosphorus and Nitrogen Removal Systems (BNR, ENR).