Effect of Sodium Xylenesulfonate on Zinc Removal from Wastewater
Publication: Journal of Environmental Engineering
Volume 124, Issue 10
Abstract
Based on new U.S. Environmental Protection Agency rules, many metal finishing and plating facilities have switched, or are evaluating switching, from solvent-based metal cleaning systems to aqueous (or alkaline)-based cleaning systems. Some of the constituents in the aqueous cleaners may inhibit metals removal in wastewater treatment processes. This study was conducted to evaluate the effects of sodium xylenesulfonate (SXS), a constituent of a common aqueous cleaner, on zinc removal from industrial wastewater using hydroxide precipitation. In addition, the effects of polyaluminum chloride (PAC) dosages used in the treatment plant were also evaluated. It was found that low levels of SXS did not significantly affect zinc removal. However, higher concentrations of SXS, especially when combined with greater than optimum levels of PAC, did significantly inhibit zinc removal through hydroxide precipitation.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 124 • Issue 10 • October 1998
Pages: 939 - 944
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Oct 1, 1998
Published in print: Oct 1998
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