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http://dx.doi.org/10.17663/JWR.2012.14.4.629

A Study on Removal of Dissolved Organic Matter and Phosphorus in Eutrophic Lake by Coagulation Process Using Powdered Activated Carbon  

Cho, Kyung Chul (인하대학교 환경공학과)
Lee, Min Hee (인천대학교 건설환경공학과)
Park, Jung Hwan (인하공업전문대학 화공환경과)
Jung, Jongtai (인하대학교 환경공학과)
Publication Information
Journal of Wetlands Research / v.14, no.4, 2012 , pp. 629-635 More about this Journal
Abstract
This study was conducted to evaluate the removal behaviors of DOM(dissolved organic matter) and phosphorus in eutrophic lake water by coagulation process with PAC(powdered activated carbon). It was observed that the removal characteristic of soluble matter was different from that of dissolved one, and the removal of DOM was effected by both pH and coagulant dosage. It was founded that PAC could increase the removal efficiency by an adsorption of DOM in coagulation process. A formation of soluble and colloidal matters resulted in the degradation of phosphorus removal efficiency in a chemical precipitation process. The phosphorus removal efficiency could be enhanced by an absorption of colloidal matter and dissolved complex with PAC addition. In addition, the PAC addition caused the increase of floc density in coagulation process, that led to the rise of sedimentation rate, and resulted in a significant improvement of solid-liquid separation efficiency.
Keywords
coagulation process; powdered activated carbon; dissolved organic matter; phosphorus;
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