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http://dx.doi.org/10.15681/KSWE.2017.33.6.754

Treatment Technologies for Removal of Polybrominated Diphenyl Ethers (PBDEs) from Wastewater  

Kim, Minhee (Korea University Institute of Environment and Ecology, Korea University)
Hyun, Seunghun (Department of Environmental Science and Ecological Engineering, Korea University)
Lee, Won-Seok (Water Supply and Sewerage Research Division, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.33, no.6, 2017 , pp. 754-768 More about this Journal
Abstract
Polybrominated diphenyl ethers (PBDEs) are a group of industrial aromatic organobromine chemicals that have been used since the 1970s as flame retardants in a wide range of consumer products and articles, including plastics, computers, textiles and upholstery. Commercial PBDEs were added to Annex A of the Stockholm Convention as persistent organic pollutants in May 2009. PBDEs are still frequently found in sludge and effluent from wastewater treatment plants, even though commercial PBDEs were prohibited or voluntarily phased out several years ago. Conventional wastewater treatment processes are not designed to effectively remove PBDEs. This indicates that there is an urgent need for new developments and improvements to enhance upon the treatment techniques which are currently available. Several studies have suggested the potential removal and degradation technologies for PBDEs in wastewater. In this study, the concentrations and compositional profiles of PBDE congeners in sludge and effluent are investigated by analyzing the relevant literature data in relation to their usage patterns in commercial products in North America and South Korea. The strengths and weaknesses of the current PBDEs removal techniques (i.e., biodegradation, zero-valent iron, photolysis, sorption, etc.) are discussed critically. In addition, future research direction regarding the treatment and removal of PBDEs from wastewater is also suggested, based on the literature review.
Keywords
Persistent organic pollutants; Polybrominated diphenyl ethers; Treatment Technologies; Wastewater treatment plant;
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