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Mechanism of phosphorus removal by SBR submerged biofilm system
Affiliation:1. Department of Chemical & Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland, New Zealand;2. Department of Energy, Materials and Energy Research Center, Karaj, Iran;1. Lab of Waste Valorization and Water Reuse, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. College of Biotechnology and Pharmaceutical Engineering, Nanjing TECH University, Nanjing 211816, China;4. Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Hong Kong Special Administrative Region;1. Department of Analytical Chemistry, Institute of Chemistry of Araraquara, São Paulo State University (UNESP), CP 355, 14801-970 Araraquara, São Paulo, Brazil;2. Center for Monitoring and Research of the Quality of Fuels, Biofuels, Crude Oil and Derivatives (CEMPEQC), Institute of Chemistry of Araraquara, São Paulo State University (UNESP), CP 355, 14801-970 Araraquara, São Paulo, Brazil;3. Institute of Research on Bioenergy (IPBEN), São Paulo State University (UNESP), 13500-230 Rio Claro, São Paulo, Brazil;1. Department of Chemical Engineering, University of Missouri-Columbia, Columbia, MO 65211, United States;2. CECEP Both Environment Eng. & Tech. Co., Ltd., Wuhan, Hubei 430071, China;3. Department of Civil & Environmental Engineering, University of Missouri-Columbia, Columbia, MO 65211, United States
Abstract:The mechanism of phosphorus removal in SBR submerged biofilm system was studied in the research. The DNP and nuclear magnetic resonance methods were employed to verify the mechanism of phosphorus removal by bacteria with the phosphorus release in anaerobic phase and uptake in oxic and anoxic phases. The mathematical models of phosphorus releases in anaerobic phase and phosphorus uptake in oxic phase were deduced and evaluated by comparison between the theoretically calculated values and the test data.
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