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Treatment of Seafood Wastewater Using AO$_2$ System with PU-AC Media  

Lee, Soon (Department of Environmental Science, Keimyung University)
Park, Sang-Won (Department of Environmental Science, Keimyung University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.30, no.6, 2008 , pp. 666-672 More about this Journal
Abstract
Feasibility of simultaneous removal of organic matter, nitrogen and phosphorus was evaluated by applying AO$_2$ system to treat wastewater from a seafood processing plant. Treatability test was conducted by incorporating activated sludge from municipal sewage treatment plant with PU-AC media. Inflow concentrations of COD, TN, and TP were 198$\sim$1,240 mg/L, 75$\sim$577.4 mg/L, and 2.2$\sim$53.5 mg/L, respectively. Average removal efficiencies and outflow concentration of COD, TN, and TP were 86.5%, 65.7 mg/L; 81.4%, 53.1 mg/L; and 80.6% 4.07 mg/L, respectively. Stable operation was possible by increasing organic matter, nitrogen, and phosphorus loading rate to seafood wastewater treatment system composed of anaerobic and aerobic reactors. Used PU-AC media was proved to be biodegradable in this AO$_2$ system by maintaining high biomass concentration in the PU-AC media.
Keywords
AO$_2$ System; Biological Treatment; Seafood Wastewater;
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