Intricacies of Enhanced Biological Phosphorus Removal in Full-Scale Sequencing Batch Reactors Based on Wastewater Treatment Plants of India
Publication: Journal of Environmental Engineering
Volume 149, Issue 1
Abstract
Enhanced biological phosphorus removal (EBPR) is a growing, succeeding, and recognized process for removing phosphorus biologically from wastewater. Four sequencing batch reactor (SBR) plants with capacities of 120, 87.5, 50, and 3 million L per day (MLD) from different Indian locations were analyzed for EBPR. The 120 MLD Varanasi, 87.5 MLD Mumbai, and 50 MLD Gurgaon plants were working effectively for EBPR; total phosphorus (TP) removal was observed at milligrams of readily biodegradable chemical oxygen demand (rbCOD) per milligram of 12.0, 14.4, and 18.6, respectively; however, the 3 MLD Roorkee SBR was working mainly as adequate nitrogen removing technology at milligrams rbCOD/mg . The linear increasing trend was observed between rbCOD/COD (%) and EBPR (%) at ( and ) in plants. Optical microscopic examinations were performed to identify the intracellular polymers [poly-β-hydroxybutyrate (PHB) and polyphosphates] in the EBPR sludge. This study focuses on optimizing the SBR designs (selector and non-selector based) for EBPR and identifying the relationships between wastewater characteristics and phosphorus removal governed by typical microbial functions with the perspective of optimizing decentralized treatment systems of India.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The first author is grateful to the Indian Institute of Technology, Roorkee for providing an Ministry of Human Resources and Development (MHRD) assistantship during her Ph.D. study.
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Published In
Journal of Environmental Engineering
Volume 149 • Issue 1 • January 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: May 7, 2022
Accepted: Jul 25, 2022
Published online: Oct 31, 2022
Published in print: Jan 1, 2023
Discussion open until: Mar 31, 2023
ASCE Technical Topics:
- Biological processes
- Business management
- Chemical compounds
- Chemical elements
- Chemicals
- Chemistry
- Developing countries
- Environmental engineering
- Industrial wastes
- Nutrient pollution
- Organisms
- Phosphorus
- Pollutants
- Pollution
- Practice and Profession
- Solid wastes
- Waste management
- Waste treatment
- Wastes
- Wastewater treatment plants
- Water pollution
- Water treatment
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