Swine wastewater treatment by the static granular bed reactor
by Lim, Seung Joo, M.S., IOWA STATE UNIVERSITY, 2008, 95 pages; 1453130

Abstract:

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.

 
AdviserTimothy G. Ellis
SchoolIOWA STATE UNIVERSITY
SourceMAI/ 46-05, p. , Jul 2008
Source TypeThesis
SubjectsAgriculture engineering; Environmental engineering
Publication Number1453130
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