Treatment of phosphorus waste water using crystallization method |
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| Authors: | Dejun Bian Shengshu Ai Jing Liu Yan Zuo Xi Tian |
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| Institution: | 1. School of Water Conservancy and Environment, Changchun Institute of Technology, Changchun 130012, China;2. College of Science, Changchun Institute of Technology, Changchun 130012, China;1. Laboratoire des Matériaux et du Génie Physique (LMGP), Grenoble Institute of Technology and CNRS, 3 parvis Louis Néel, CS 50257, 38016 Grenoble cedex 1, France;2. Laboratoire Adaptation et Pathogénie des Microorganismes (LAPM), Université Joseph Fourier, Inserm and CNRS, Institut Jean Roget, BP 170, 38042 Grenoble Cedex 9, France;1. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;2. Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China;3. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;1. Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, China;2. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China;1. Department of Fisheries, Ocean University of China, Qingdao 266003, PR China;2. Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA;3. Laizhou Mingbo Aquatic Co., Ltd., Lai Zhou 261418, PR China;1. Department of Civil and Environmental Engineering, Pusan National University, 63beon-gil, Geumjeong-gu, Busan, South Korea;2. Institute for Environmental Technology and Industry, Pusan National University, 63beon-gil, Geumjeong-gu, Busan, South Korea;1. Dept. of Civil Engineering, Woosuk University, Jeonbuk 565-701, South Korea;2. Korea Institute of Construction Technology, Goyang-Si 411-712, South Korea;3. Dept. of Civil Engineering, Hannam University, Deajeon 306-791, South Korea;4. Dept. of Architecture Engineering, Mokwon University, Deajeon 302-729, South Korea |
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| Abstract: | Phosphorus is the restrictive factor of water eutrophication and phosphorus removal is the key point to control this phenomenon. It's also important to recover phosphorus resource from wastewater. Crystallization method was used to treat and recycle high concentration phosphorus wastewater, the selection of organic solvent, influence of volume ratio of organic solvent and wastewater, precipitation time and stirring speed on the production of crystal and its structure was investigated. Experimental results indicate that, with ethanol as extractant, under the condition of volume ratio of ethanol to wastewater being 1.5:1 and stirring speed about 200 r/min, crystal precipitated fast with fine crystal shape and purity, phosphorus removal efficiency more than 85% was obtained. |
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