Experimental study of behavior of endocrine-disrupting chemicals in leachate treatment process and evaluation of removal efficiency |
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| Authors: | Hiroshi Asakura Toshihiko Matsuto |
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| Institution: | 1. National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan;2. Division of Environmental and Resource Engineering, Graduate School of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan;1. State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China;2. State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;3. Beijing Key Laboratory for Emerging Organic Contaminants Control, Tsinghua University, Beijing 100084, China;1. Department of Environmental Science and Natural Resources, Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon, Bangkok 10800, Thailand;2. Department of Environmental Engineering & Center for Advanced Studies in Industrial Technology, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand;3. Environmental Science Center, University of Tokyo, Tokyo 113, Japan;1. Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29201, USA;2. Environmental & Energy Research Team, GS E&C Research Institute, 417-1 Deokseong-ri Idong-myeon Cheoin-gu Yongin-si, Gyeonggi-do 449-831, South Korea;3. Department of Civil Engineering, Auburn University, Auburn, AL 36849, USA;4. Water Pollution Research Department, Environmental Science Research Division, Environmental Expert in Ministry of Justice, Cairo, Egypt;1. Key Laboratory for Urban and Ecological Restoration of Shanghai, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200241, China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China;3. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China |
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| Abstract: | An experimental study of the behavior of endocrine-disrupting chemicals (EDCs) in leachate treatment processes (aeration, coagulation and sedimentation, activated carbon adsorption, and advanced oxidation) was conducted and removal efficiencies were evaluated. Among target EDCs, concentrations of BPA (1800 times), DBP (10 times), BBP (40 times), and DEHP (30 times) in leachate are more than ten times higher than those in surface water. BPA, DBP, and BBP can be treated by aeration and DEHP, by advanced oxidation processes. BPA could not be effectively removed by coagulation and sedimentation because most of BPA partitioned in the supernatant. DEHP could hardly be treated by aeration. The removal ratios of DEHP were approximately 50–70% if the generated sediment was removed completely. The removal ratios of DEHP in leachate of 100 m3/d with 100 kg of activated carbon were 50–70%, assuming a complete mixing model. The concentration of DEHP was decreased to below one-tenth in 120 min by advanced oxidation processes. |
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