Date of Award
Master of Science
Civil, Construction, and Environmental Engineering
Timothy G. Ellis
Thomas E. Loynachan
Swine wastewater was successfully treated by the SGBR. Two types of swine wastewater samples were used, and the performance of the SGBR was excellent. COD removal efficiency of sample 1 was 84.7∼94.5%, while that of sample 2 was 58.4∼76.6%. The SGBR acted not only as a bioreactor but also as a filter system. The performance of suspended solids removal was excellent irrespective of the OLR. Additionally, the COD removal efficiency in the effluent after backwashing was not a function of the recovery time but that of the OLR.;The SGBR model was developed with concepts of advection, diffusion/dispersion, and decay of microorganisms. The simulated COD correlated well with the experimental COD except at low concentrations.;The SGBR behaved as a pseudo-plug flow reactor within the top 20% of reactor height so that most of the COD and VFA were completely removed. In addition, a large amount of granules in the lower part of the SGBR was used to polish organic matter and solids.
Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/
Seung Joo Lim
Lim, Seung Joo, "Swine wastewater treatment by the static granular bed reactor" (2008). Retrospective Theses and Dissertations. 15314.