Investigating the effect of ozone on the biodegradability of distillery wastewater
Date
2007
Authors
Sigge G.O.
Green J.
du Plessis K.R.
Britz T.J.
Journal Title
Journal ISSN
Volume Title
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Abstract
The effect of ozonation on wine distillery wastewater was investigated firstly by monitoring the effect of ozonation on the composition of the wastewater and, secondly, by investigating its effect on the biodegradability of the wastewater. An average COD reduction of 271 mg COD.g O3-1 was found for wastewater from a distillery pond system. Stable microbial populations, which are found in upflow anaerobic sludge blanket (UASB) granules, were used to determine the toxic effect of wastewater on microbial activity. Granule activity was measured in terms of the rate of biogas and methane production, as well as cumulative biogas volume. Low ozone doses (200 to 400 mg O3-1) increased granule activity in terms of biogas, methane production, and cumulative gas volumes. Distillery wastewater reduced the activity of granules, most likely due to the presence of polyphenols and other recalcitrant compounds in the distillery wastewater.
Description
Keywords
Activity test, Chemical oxygen demand (COD), Distillery wastewater, Ozone, Upflow anaerobic sludge blanket (UASB) granules
Citation
South African Journal of Enology and Viticulture
28
2
http://www.scopus.com/inward/record.url?eid=2-s2.0-79960015659&partnerID=40&md5=c93a08da5bd4c78aa0dec8c0cb26da1b
28
2
http://www.scopus.com/inward/record.url?eid=2-s2.0-79960015659&partnerID=40&md5=c93a08da5bd4c78aa0dec8c0cb26da1b