Teaching an old settling basin new tricks : how to squeeze more life from WRRF infrastructure / Rick Roll and Jeff Tudini.

Abstract: Opportunities for sustainable practices exist at water resource recovery facilities (WRRFs), some capable of prominent savings. Renovation and reuse to extend the service life of large structures such as buildings and tanks can represent a large avoided cost for new construction. A 47-year-old set of primary sedimentation basins in Niagara Falls, New York, has been undergoing a major repair and refurbishment project since 2015. The project is expected to extend the lives of the basins and produce a superior primary effluent for the present activated carbon system as well as the successor biological secondary treatment systems under consideration.