Automation of nitrogen removal from wastewater enables compliance with limit values, stable plant operation and optimises energy consumption

摘要

Optimum nitrogen reduction requires optimum coordination of the nitrification and denitrification processes. On the one hand, this involves controlling oxygenation during sludge activation in accordance with the load and the individual limit values. On the other hand, it involves coordinating the duration of the nitrification and denitrification phases. Endress + Hauser's Liquiline Control system will assist you here, ensuring that nitrogen is removed and optimising the amount of energy required to do so. The main components of nitrogen are ammonium and nitrate. In the biology of a wastewater treatment plant, bacteria converts the ammonium to nitrate through the addition of oxygen (nitrification). This continues until there is (almost) no ammonium left.