DSpace
 

iRepository at Perpustakaan UniMAP >
Journal Articles >
School of Environmental Engineering (Articles) >

Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/dspace/handle/123456789/6664

Title: Anaerobic treatment of olive mill wastewater and piggery effluents fermented with Candida tropicalis
Authors: Gregorio, Martinez-Garcia
Anbu Clemensis, Johnson
Robert T., Bachmann
Ceri J., Williams
Andrea, Burgoyne
Robert G.J., Edyvean
Keywords: Olive mill wastewater;Aerobic fermentation;Anaerobic digestion;Bio-degradation;Candida tropicalis;Phenolic compounds;Sewage -- Purification;Wastewater treatment
Issue Date: May-2009
Publisher: Elsevier B.V.
Citation: Journal of Hazardous Materials, vol.164 (2-3), 2009, pages 1398-1405
Abstract: Olive mill wastewater (OMW) contains high concentrations of phenolic compounds that are inhibitory to many microorganisms making it difficult to treat biologically prior to discharge in waterways. The total mono-cyclic phenol reduction in OMW in this study was carried out by aerobic pre-treatment using the yeast Candida tropicalis in a 18 L batch reactor at 30 °C for 12 days followed by anaerobic co-digestion. A COD removal of 62% and a reduction in the total mono-cyclic phenol content by 51% of the mixture was achieved in the aerobic pre-treatment. Pig slurry was added as co-substrate to supplement the low nitrogen levels in the olive mill wastewater. Subsequent anaerobic treatment was carried out in a 20 L fixed-bed reactor at 37 °C and HRT between 11 and 45 days. After a long start-up period, the OLR was increased from 1.25 to 5 kg COD m-3 day-1 during the last 30 days, resulting in subsequent increase in overall COD removal and biogas production, up to maximum values of 85% and 29 Lbiogas Lreactor- 1 da y- 1, respectively. Methane content of the biogas produced from the anaerobic digestion ranged between 65% and 74%.
Description: Link to publisher's homepage at http://www.elsevier.com/wps/find/homepage.cws_home
URI: http://www.sciencedirect.com/science/journal/03043894
http://hdl.handle.net/123456789/6664
ISSN: 03043-894
Appears in Collections:School of Environmental Engineering (Articles)

Files in This Item:

File Description SizeFormat
Abstract.pdf9.25 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Perpustakaan Tuanku syed Faizuddin Putra, Kampus Pauh Putra, Universiti Malaysia Perlis, 02600, Arau Perlis
TEL: +604-9885420 | FAX: +604-9885405 | EMAIL: rujukan@unimap.edu.my Feedback