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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Microbiology of a biological contactor for winery wastewater treatment
Water Research, Volume 37, No. 17, Year 2003
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Description
Winery wastewaters are characterised by large seasonal fluctuations in volume and composition and are often discarded with little or no treatment. A rotating biological contactor (RBC) was used to investigate microorganisms associated with the biological treatment of winery wastewater. Extensive biofilms developed on the RBC discs and contained a number of yeast and bacterial species that displayed a dynamic population shift during the evaluation period. This suggested that the naturally occurring microorganisms were able to form a stable biofilm and also reduce the chemical oxygen demand (COD) of winery wastewater (on average 43% with a retention time of 1h). One of the yeast isolates, MEA5, was able to reduce the COD of synthetic wastewater by 95% and 46% within 24h under aerated and non-aerated conditions, respectively. The yeast isolates could therefore play an important role in the degradation of organic compounds under aerobic conditions, such as those associated with an RBC. © 2003 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Malandra, Lida
South Africa, Stellenbosch
Stellenbosch University
Wolfaardt, Gideon M.
South Africa, Stellenbosch
Stellenbosch University
Zietsman, Ancha
South Africa, Stellenbosch
Stellenbosch University
Viljoen-Bloom, Marinda
South Africa, Stellenbosch
Stellenbosch University
Statistics
Citations: 150
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/S0043-1354(03)00339-7
ISSN:
00431354
Study Design
Cross Sectional Study