Dynamics of Clogging in Subsurface Flow Constructed Wetlands
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 26, Issue 1
Abstract
Subsurface flow constructed wetlands (SSF CWs) are increasingly used globally for the removal of pollutants from wastewater. However, clogging of the filter bed is the main operational and maintenance risk of SSF CWs for the long-term stable treatment of wastewater. Recently, many studies have reported various strategies to combat clogging in wetland beds. To ensure the appropriate implementation of the developed strategies, a thorough understanding of the mechanism of clogging is required. Currently, there is no appropriate analytical review article that gives insight into wetland clogging and its mechanisms. Therefore, this article aims to review the major types of clogging, such as physical, chemical, and biological clogging, their mechanisms, field investigations, and clogging remedial measures. This article will provide insights into wetland clogging and will enable prospective researchers and engineers to use suitable measures against clogging for its effective alleviation.
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Acknowledgments
The authors wish to thank the Department of Civil Engineering, School of Infrastructure, Indian Institute of Technology Bhubaneswar, India, for providing facilities to carry out the research work in the related area.
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Journal of Hazardous, Toxic, and Radioactive Waste
Volume 26 • Issue 1 • January 2022
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© 2021 American Society of Civil Engineers.
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Received: Apr 20, 2021
Accepted: Aug 5, 2021
Published online: Oct 13, 2021
Published in print: Jan 1, 2022
Discussion open until: Mar 13, 2022
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