Stefan, HeinzJohnson, Thomas2011-08-262011-08-261986-10https://hdl.handle.net/11299/113928Please note: Pages i and ii are available at the end of the document.Dechlorination of municipal wastewater with sulfur dioxide was found to be incomplete at the Minneapolis-St. Paul Metro Wastewater Treatment Plant (WWTP). Residual chlorine was found intermittently in the dechlorination basin effluent. The purpose of this study was to define and remedy dechlorination basin hydraulics and thus performance.enReport