Lookup NU author(s): Professor Thomas Donnelly,
Dr Paul Sallis
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In this study, the optimum operating conditions of a lab-scale completely stirred acidogenic reactor treating a chemical synthesis-based pharmaceutical wastewater were determined. Individual effects of hydraulic retention time (HRT), organic loading rate (OLR) and pH on the degree of acidification were investigated at a mesophilic temperature (35 ± 1 °C), for HRT in the range 8-24 h, OLR up to 14 kg COD/m3 d and pH in the range of 5.0-6.3. A maximum acidification level of 44% and COD removal efficiency of 13%, were obtained at an OLR of 13 kg COD/m3 d at pH of 5.5 ± 0.1 with an HRT of 12 h. Under these conditions, acetic, propionic and n-butyric acids were found to be predominant volatile fatty acids in the acidogenic reactor. © 2006 Elsevier Ltd. All rights reserved.
Author(s): Oktem YA, Ince O, Donnelly T, Sallis PJ, Ince BK
Publication type: Article
Publication status: Published
Journal: Process Biochemistry
Print publication date: 01/11/2006
ISSN (print): 1359-5113
ISSN (electronic): 1873-3298
Publisher: Elsevier Ltd
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