This study evaluated operational side effects associated with co-digestion of high strength waste (HSW) and wastewater solids (thickened primary sludge and thickened waste activated sludge) at water resource recovery facilities (WRRFs). The two goals of this study were to evaluate co-digestion facility design, performance data, and operation and maintenance issues at five WRRFs and to evaluate the impacts of co-digestion of HSW on methane production, sludge production, and nitrogen and phosphorus concentrations in recycle streams. Recommendations for better process control during co-digestion are included. Published by WE&RF. 230 pages. Online PDF. (2017)
Originally funded as WERF project ENER9C13.