An experimental investigation on phenol wastewater treatment from coal gasification by pervaporation with NaY molecular Sieve filling membrane |
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| Authors: | YAO Jie HE Zhi-ru LUO An-guo ZHAO Qi SHAO Ze-hui JIA Li and LI Biao-ming |
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| Affiliation: | School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;National Engineering Center of Urban Water Resources,Harbin Institute of Technology,Harbin 150090,China;National Engineering Center of Urban Water Resources,Harbin Institute of Technology,Harbin 150090,China;Dongying Running Water Company,Dongying 257091,China;National Engineering Center of Urban Water Resources,Harbin Institute of Technology,Harbin 150090,China;School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China |
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| Abstract: | In the experiment,PDMS membrane with NaY molecular sieve filling were chosen as the experimental objects and the flux of phenol and removal efficiency of phenol as evaluation index,the effect of the system operating temperature,the flow rate,liquid membrane downstream pressure,operation time,and filling proportion of NaY molecular sieve on pervaporation treatment efficiency for wastewater from coal gasification were investigated. With the increase of temperature and feed flow rate,pervaporation flux and phenol removal efficiency increases. The decrease of the membrane downstream pressure and elevating NaY molecular sieve filling proportion may result in the increase of flux and then phenol removal efficiency improves. When NaY molecular sieve filling proportion is 45% ,treatment efficiency is the best for coal gasification wastewater containing 1850 mg/L phenol as the flux of phenol was 12948. 23 mg/(h·m2) . |
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| Keywords: | coal gasification wastewater pervaporation PDMS membrane NaY molecular sieve filling mem- brane |
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