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Horizontal Flow Zeolite-Filled Reed Bed with Intermittent Feeding for Sewage Treatment  

Seo Jeoung-Yoon (Department of Environmental Engineering, College of Engineering, Changwon National University)
Kim Ean-Ho (Department of Environmental Engineering, College of Engineering, Changwon National University)
Publication Information
KSBB Journal / v.21, no.1, 2006 , pp. 28-33 More about this Journal
Abstract
A sewage was treated using a horizontal flow zeolite-filled reed bed. The sewage from the student dormitory of Changwon National University was fed into the reed bed for 10 minutes every 6 hours at the hydraulic load of $314L/m^2$ day. The filtering height of the reed bed was 100 cm and the zeolite mixture was filled in the reed bed. The mixture consisted of the same volume of two types of zeolite : $0.5{\sim}1mm$ and $1{\sim}3mm$ in diameter. Annual average removal efficiency was SS $88.5%,\;COD_{cr},\;86.1%,\;COD_{Mn}\;81.0%,\;T-N\;48.6%,\;NH_4^+-N\;97.1%$ and T-P 42.8%. T-N of effluent was mostly $NO_3^--N$ and the concentration of $NO_2^--N$ in effluent was lower than 0.1 mg/L. All removal efficiencies did not show a remarkable seasonal change.
Keywords
Horizontal flow; zeolite reed bed; sewage treatment; intermittent feeding;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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