Meeting State Nutrient Regulations With SBRs

After the Missouri Department of Natural Resources reclassified the effluent receiving stream in the city of Sullivan, officials learned that its wastewater treatment lagoon required a more advanced treatment process to comply. They selected a continuous-flow sequencing batch reactor (SBR) system that utilizes a modified activated sludge biological treatment. The new infrastructure has provided cost-saving results for the ongoing removal of nitrogen and phosphorous.

Image credit: “First stabilisation ponds of wastewater treatment plant," © 2012 Sustainable Sanitation, used under an Attribution 2.0 Generic license: http://creativecommons.org/licenses/by/2.0/