Post-treatment of distillery wastewater after UASB using aerobic techniques
Date
2007
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
South African Society for Enology and Viticulture
Abstract
The treatment of high-strength wastewater from a distillery using grape-based feedstock was conducted through sequencing the upflow anaerobic sludge blanket (UASB) reactor and the aerobically-activated sludge reactors. The performance of the UASB system was evaluated at the end of a period of 33 days in terms of the final chemical oxygen demand (COD) removal. Final COD removal efficiency of up to 88.7% was achieved. The effect of varying the volumetric loading rates on COD removal was evaluated for the two experimental runs. For run I (undiluted), the volumetric loading rates ranged from 4.06 to 18.90 kg COD/m3.day and the maximum COD removal achieved by the reactor was 57.1%. For experimental run II (diluted), the loading rates ranged between 3.60 to 8.20 kg COD/m3.day, with the reactor achieving 88.7% COD removal. Post-treatment of the effluent using the aerobicallyactivated sludge reactor further improved the overall COD removal in run II to 96.5% and also reduced the phosphorous in the effluent to a final value of approximately 20 mg/L. These experimental results indicate that sequential treatment of the distillery wastewater using UASB followed by aerobically-activated sludge treatment is an efficient system that makes the final effluent compliant with the requirements of environmental legislation.
Description
CITATION: Musee, N., Trerise, M.A. & Lorenzen, L. 2007. Post-treatment of distillery wastewater after UASB using Aerobic techniques. South African Journal of Enology & Viticulture, 28(1):50-55, doi:10.21548/28-1-1459
The original publication is available at http://www.journals.ac.za/index.php/sajev
The original publication is available at http://www.journals.ac.za/index.php/sajev
Keywords
Distillers, Wine -- Distillation process, Wastewater -- Treatment, Distilling industries -- By-products -- Treatment
Citation
Musee, N., Trerise, M.A. & Lorenzen, L. 2007. Post-treatment of distillery wastewater after UASB using Aerobic techniques. South African Journal of Enology & Viticulture, 28(1):50-55, doi:10.21548/28-1-1459