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http://dx.doi.org/10.5322/JES.2007.16.6.707

Nitrogen Removal from Synthetic Domestic Wastewater Using the Soil Column  

Cheong, Kyung-Hoon (Department of Environmental Engineering and BK21 Team for Biohydrogen Production, Chosun University)
Lim, Byung-Gab (Department of Environmental Engineering and BK21 Team for Biohydrogen Production, Chosun University)
Choi, Hyung-Il (Department of Environmental Engineering, Chosun University)
Park, Sang-Ill (Department of Environmental Engineering and BK21 Team for Biohydrogen Production, Chosun University)
Moon, Ok-Ran (Department of Environmental Engineering and BK21 Team for Biohydrogen Production, Chosun University)
Publication Information
Journal of Environmental Science International / v.16, no.6, 2007 , pp. 707-714 More about this Journal
Abstract
A laboratory experiment was performed to investigate nitrogen removal by the soil column. The addition of 20% waste oyster shell to the soil accelerated nitrification in soil column. The $NO_3^--N$ concentration in the effluent decreased with the decrease of HRT(Hydraulic Retention Time). When methanol and glucose added as carbon sources, the average removal rates of T-N(Total Nitrogen) were 82% and 77.9%, respectively. The $NO_3^--N$ removal by methanol supplementation in soil column can likely be attributed to denitrification. In continuous removal of nitrogen using the soil column, the COD(Chemical Oxygen Demand) and $NH_4^+-N$ removed simultaneously in organic matter decomposing column. The greater part of $NH_4^+-N$ was nitrified by the percolated through nitrification column, and the little $NH_4^+-N$ was found in the effluent. The T-N of 87.4% removed at HRT of 36 hrs in denitrfication column. Because of nitrified effluents from nitrification column are low in carbonaceous matter, an external source of carbon is required.
Keywords
Soil column; Ammonium removal; Nitrification;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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