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Phosphorus Removal from Wastewater by CaCO3 Media  

Kim, Moon Ki (Department of Environmental Engineering, Kyonggi University)
Park, Jae Hong (Monitoring and Analysis Division, Yeongsan River Basin Environmental Office)
Lee, Kwang Hyun (Department of Environmental Engineering, Kyonggi University)
Joo, Hyun Jong (Department of Environmental Engineering, Kyonggi University)
Publication Information
Journal of Korean Society on Water Environment / v.25, no.4, 2009 , pp. 515-521 More about this Journal
Abstract
In this study, the applicability of $CaCO_3$ as a seed material for crystallization reaction was tested. $CaCO_3$ was ground to lesser than 425 mesh and was made to media mixed with binder. Batch experiment was to investigate the ${PO_4}^{3-}-P$ removal efficiency of different parameters such as $CaCO_3$ dosage and binder ratio, size, type and mass of media. In addition, the effect of phosphorus removal from wastewater was tested using a lab-scaled crystallization reactor. At the results of the batch test, phosphorus removals were improved with increasing $CaCO_3$ dosage and media mass but were decreased with increasing media size. Moreover, phosphorus removals were influenced by specific surface area but media type. The average T-P and ${PO_4}^{3-}-P$ removal efficiency in a lab-scaled crystallization reactor with $CaCO_3$ media for wastewater were shown to be 60.2% and 60.3% for 18 days of operation time.
Keywords
Calcium carbonate ($CaCO_3$); Hydroxyapatite; Media; Phosphorus; Phosphorus crystallization process;
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Times Cited By KSCI : 1  (Citation Analysis)
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