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Article

Sequencing Batch Reactor Performance Evaluation on Orthophosphates and COD Removal from Brewery Wastewater

1
Green Engineering Research Group, Department of Chemical Engineering, Faculty of Engineering and the Built Environment, Steve Campus, Durban University of Technology, S3 L3, P.O. Box 1334, Durban 4000, South Africa
2
Environmental Pollution and Remediation Research Group, Department of Chemical Engineering, Faculty of Engineering, Mangosuthu University of Technology, P.O. Box 12363, Jacobs, Durban 4026, South Africa
*
Author to whom correspondence should be addressed.
Academic Editor: Sanjay Nagarajan
Received: 30 April 2022 / Revised: 18 June 2022 / Accepted: 20 June 2022 / Published: 23 June 2022
The discharge of industrial effluent constituting high orthophosphates and organic pollutants in water receiving bodies compromises freshwater quality and perpetuates eutrophication. In this study, an anaerobic–aerobic sequencing batch reactor (SBR) under activated sludge was investigated for orthophosphates and chemical oxygen demand (COD) removal from brewery wastewater. Raw brewery wastewater samples were collected on a daily basis for a period of 4 weeks. The findings of the study are reported based on overall removal efficiencies recording 69% for orthophosphates and 54% for total COD for a sludge retention time (SRT) of 7 days and hydraulic retention time of 18 h at mesophilic temperature conditions of ±25 °C. Moreover, the SBR system showed stability on orthophosphate removal at a SRT ranging from 3 to 7 days with a variation in organic volumetric loading rate ranging from 1.14 to 4.83 kg COD/m3.day. The anaerobic reaction period was experimentally found to be 4 h with the aerobic phase lasting for 14 h. The SBR system demonstrated feasibility on orthophosphates and COD removal with variation in organic loading rate. View Full-Text
Keywords: orthophosphates; chemical oxygen demand; sequencing batch reactor; brewery wastewater; solid retention time orthophosphates; chemical oxygen demand; sequencing batch reactor; brewery wastewater; solid retention time
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MDPI and ACS Style

Khumalo, S.M.; Bakare, B.F.; Tetteh, E.K.; Rathilal, S. Sequencing Batch Reactor Performance Evaluation on Orthophosphates and COD Removal from Brewery Wastewater. Fermentation 2022, 8, 296. https://0-doi-org.brum.beds.ac.uk/10.3390/fermentation8070296

AMA Style

Khumalo SM, Bakare BF, Tetteh EK, Rathilal S. Sequencing Batch Reactor Performance Evaluation on Orthophosphates and COD Removal from Brewery Wastewater. Fermentation. 2022; 8(7):296. https://0-doi-org.brum.beds.ac.uk/10.3390/fermentation8070296

Chicago/Turabian Style

Khumalo, Siphesihle M., Babatunde F. Bakare, Emmanuel K. Tetteh, and Sudesh Rathilal. 2022. "Sequencing Batch Reactor Performance Evaluation on Orthophosphates and COD Removal from Brewery Wastewater" Fermentation 8, no. 7: 296. https://0-doi-org.brum.beds.ac.uk/10.3390/fermentation8070296

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