Use of Nanoparticles for Reduction of Odorant Production and Improvements in Dewaterability of Biosolids

Odor production and dewaterability are two issues of concern for utilities during conditioning and beneficial reuse of biosolids. The objective of this study was to obtain preliminary information on the potential role of novel nanoparticles in enhancing sludge dewatering and control of biosolids odor. The study explored the possible mechanisms of nanoparticles interactions with sludge constituents and control of odorant release in the presence of high surface area nanoparticles. The interactions of nanoparticles with polymers of different charge densities were evaluated for effective dewatering and odor control. The effectiveness of nanoparticles for dewatering of digested sludge from conventional as well as thermally hydrolyzed sludges was also evaluated. Published by WERF. 110 pages. Online PDF. (2011)

Originally funded as WERF project U3R08.