Journal of Oleo Science
Online ISSN : 1347-3352
Print ISSN : 1345-8957
Chemistry and Organic Synthesis
Application of Activated Carbons from Coal and Coconut Shell for Removing Free Residual Chlorine
Fumihiko OgataHisato TominagaAyaka UedaYuko TanakaYuka IwataNaohito Kawasaki
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2013 Volume 62 Issue 4 Pages 241-244


This study investigated the removal of free residual chlorine by activated carbon (AC). ACs were prepared from coal (AC1) and coconut shell (AC2). The specific surface area of AC1 was larger than that of AC2. The removal of free residual chlorine increased with elapsed time and amount of adsorbent. The removal mechanism of free residual chlorine was the dechlorination reaction between hypochlorous acid or hypochlorite ion and AC. Moreover, AC1 was useful in the removal of free residual chlorine in tap water. The optimum condition for the removal of free residual chlorine using a column is space velocity 306 1/h; liner velocity 6.1 m/h.

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© 2013 by Japan Oil Chemists' Society
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