화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 4499-4508, November, 2014
DOI10.1016/j.jiec.2014.02.022  Export Citation
Effluent organic matter removal fromreverse osmosis feed by granular activated carbon and purolite A502PS fluidized beds
Sukanyah Shanmuganathan, Tien Vinh Nguyen, W.G. Shim1, Jaya Kandasamy, Andrzej Listowski2, and Saravanamuthu Vigneswaran†
  • Faculty of Engineering, University of Technology Sydney (UTS), P.O. Box 123, Broadway, NSW 2007, Australia
  • 1School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Republic of Korea
  • 2Sydney Olympic Park Authority, 8 Australia Avenue, Sydney Olympic Park, NSW 2127, Australia
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Applying pre-treatments to remove dissolved organic matter from reverse osmosis (RO) feed can help to reduce organic fouling of the RO membrane. In this study the performance of granular activated carbon (GAC), a popular adsorbent, and purolite A502PS, an anion exchange resin, in removing effluent organic matter (EfOM) from RO feed collected from a water reclamation plant located at Sydney Olympic Park, Australia were evaluated and compared through adsorption equilibrium, kinetics and fluidized bed experiments. The maximum adsorption capacity (Qmax) of GAC calculated from the Langmuir model with RO feed was 13.4 mg/g GAC. The operational conditions of fluidized bed columns packed with GAC and purolite A502PS strongly affected the removal of EfOM. GAC fluidized bed with a bed height of 10cm and fluidization velocity of 5.7 m/h removed more than 80% of dissolved organic carbon (DOC) during a 7 h experiment. The average DOC removal was 60% when the bed height was reduced to 7 cm. When comparing GAC with purolite A502PS, more of the laterwas required to remove the same amount of DOC. The poorer performance of purolite A502PS can be explained by the competition provided by other inorganic anions present in RO feed. A plug flow model can be used to predict the impact of the amount of adsorbent and of the flow rate on removal of organic matter from the fluidized bed column.
Keywords:Effluent organic matter;Fluidized bed;Granular activated carbon;Purolite A502PS;Reverse osmosis feed;Modelling
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