Removal of Methylene Chloride from Paint Stripping Waste water by Air Stripping Process

Lim, Poh Eng (1996) Removal of Methylene Chloride from Paint Stripping Waste water by Air Stripping Process. Pertanika Journal of Science & Technology, 4 (2). pp. 157-165. ISSN 0128-7680

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Abstract

Laboratory-scale air stripping experiments were conducted at various unit air flow rates (Q) to remove methylene chloride from paint stripping waste water. The results showed that the removal of methylene chloride by batch diffused air stripping process follows first-order kinetics and that the concentration of methylene chloride could be reduced to less than 0.1 mg I-I within 120 min at a unit air flow rate of 0.833 1 min-II-I. The stripping rate constant k , which quantifies the rate of air stripping, can be predicted from the equation k = (H/RT) Q; where H is the Henry's law constant, R a universal constant and T temperature, provided that Qis kept within 0.833 1min-I I-I. The values of k were found to be 0.028,0.056,0.088 and 0.087 min-I at Q of 0.286, 0.571, 0.833 and 1.33 1 min 1-1, respectively.

Item Type:Article
Keyword:methylene chloride, air stripping process
Publisher:Universiti Putra Malaysia Press
ID Code:3263
Deposited By: Nur Izzati Mohd Zaki
Deposited On:25 Nov 2009 01:38
Last Modified:27 May 2013 07:06

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