Enhanced biological treatment of spent metalworking fluids by prior removal of a polymer

Helen Carney, Christopher J van der Gast, Tom Stephenson, Centre for and, Doug Wylie

Research output: Contribution to journalArticlepeer-review

Abstract

The biological treatment of spent synthetic metalworking fluid (MWF) has been investigated in many studies, with most reporting the presence of undegraded components in the residual waste. In this study a hybrid approach to waste treatment of spent MWF, involving both physical treatment and microbial degradation, was investigated. The effect of the removal of a synthetic polymer on biological degradation was investigated in a bioreactor system. Polymer removal was found to have little effect on the degradation efficiency of the remaining components but resulted in a waste product with 14% lower chemical oxygen demand. An additional benefit of this approach is that it enables the possibility of recycling of the recovered components, with the aim of economising on future product formulation and reducing waste discharge. Copyright © 2006 Society of Chemical Industry
Original languageEnglish
Pages (from-to)1540-1546
Number of pages7
JournalJournal of chemical technology and biotechnology
Volume81
Issue number9
DOIs
Publication statusPublished - 18 Jul 2006

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