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KMID : 1024520000090030261
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Journal of the Environmental Sciences
2000 Volume.9 No. 3 p.261 ~ p.266
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Basic Study for Development of Denitrogenation Process by Ion Exchange(IV) -A Kinetic Study in Continuous Column and an Economic Analysis-
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Lee Min-Gyu
Ju Chang-Sik
Chae Yong-Gon
Kim Sung-Il
Lee Dong-Hwan
Yoon Tae-Kyung
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Abstract
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A kinetic study for nitrate removal by anion exchange resin was performed using continuous column reactors. Kinetic approach from the packed bed showed the reaction rate constant k was 0.07~0.17 /mgㆍhr and maximum exchange quantity q was 27.75~31.81 mg/g. The results from the continuous column well agreed with that from the batch reactor. An economic analysis of the water treatment plant by anion exchange resin with a regenerating system was performed to design plant and process. Based on the treatment of 20 mg/ nitrate-contained wastewater of 10,000 gallons per day to 2 mg/, total capital cost and total annual cost are estimated to be 836 million wons and 211 million wons, respectively.y.
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KEYWORD
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nitrate removal, anion exchange, kinetic approach, maximum exchange quantity, economic analysis
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