Abstract:

Measurement of nutrients within wastewater is increasingly becoming important both for end-of-pipe monitoring of discharges and for process control. Current control strategies for optimising the nitrification and denitrification processes of biological nutrient removal (BNR) plants and other waste water treatment designs are often limited by long lag times in the availability of laboratory data. Being able to measure directly at any point throughout the treatment system would often be a significant advantage for the process operator. A new concept of ammonia monitor is presented which allows for direct in-situ accurate measurement even within the MLSS of an AS tank. Southern Water have now installed successfully several as part of their final effluent consent monitoring program.