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

하·폐수내 브롬화 디페닐 에테르(Polybrominated Diphenyl Ether, PBDEs)의 분포 및 제거기술 동향

  • 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)
  • 김민희 (고려대학교 환경생태연구소) ;
  • 현승훈 (고려대학교 환경생태공학과) ;
  • 이원석 (국립환경과학원 상하수도연구과)
  • Received : 2017.08.24
  • Accepted : 2017.10.17
  • Published : 2017.11.30

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.

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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