Industrial Wastewater Pretreatment Evaluation

Indiana

This industrial facility's previous National Pollutant Discharge Elimination System (NPDES) permit required that treated waste flowing from their facility meet a copper limit of 21 parts per billion (ppb) on a monthly average and 42 ppb daily maximum by the end of 2014. Although this facility's activated sludge wastewater treatment plant (WWTP) used at this time was capable of removing some copper biologically through co-precipitation, the WWTP could not meet these new limits without additional treatment. American Structurepoint worked with this industrial facility to explore multiple options that included the implementation of a copper treatment system versus modifying the existing lift station and installing a new force main to discharge to the local municipality’s sanitary sewer system. Due to overall project costs and the desire to stop treating wastewater, this industrial facility elected to connect to the local municipality.

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