Comparison of nanofiltration efficiency with GAC adsorption and air stripping processes for CHCl3 removal from Tehran drinking water

Abstract

Research Article| June 01 2009 Comparison of nanofiltration efficiency with GAC adsorption and air stripping processes for CHCl3 removal from Tehran drinking water M. T. Samadi; M. T. Samadi 1Environmental Health Department, School of Health and Center for Health Research, Hamadan University of Medical Sciences, PO Box 4171, Hamadan 65175, Iran E-mail: samadi@umsha.ac.ir Search for other works by this author on: This Site PubMed Google Scholar S. Nasseri; S. Nasseri 2Center for Environmental Research, Tehran University of Medical Sciences, PO Box 6446, Tehran 14155, Iran Search for other works by this author on: This Site PubMed Google Scholar A. R. Mesdaghinea; A. R. Mesdaghinea 2Center for Environmental Research, Tehran University of Medical Sciences, PO Box 6446, Tehran 14155, Iran Search for other works by this author on: This Site PubMed Google Scholar M. R. Alizadehfard M. R. Alizadehfard 3Polymer Engineering Department, Amirkabir University of Technology, Tehran, Iran Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2009) 58 (4): 285–290. https://doi.org/10.2166/aqua.2009.001 Article history Received: January 15 2008 Accepted: December 24 2008 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation M. T. Samadi, S. Nasseri, A. R. Mesdaghinea, M. R. Alizadehfard; Comparison of nanofiltration efficiency with GAC adsorption and air stripping processes for CHCl3 removal from Tehran drinking water. Journal of Water Supply: Research and Technology-Aqua 1 June 2009; 58 (4): 285–290. doi: https://doi.org/10.2166/aqua.2009.001 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The effectiveness of nanofiltration (NF) was compared with granular activated carbon (GAC) and air stripping (AS) using a packed column in water treatment for the removal of chloroform (CHCl3), which is a basic indicator of trihalomethane (THM) compounds in many water resources. Pilot GAC and AS columns were designed and set up with nanofiltration polyamide and cellulose acetate blend spiral-wound modules with MWCO of 300 Da and 600 Da. The study was carried out for the two cases of deionized and chlorinated Tehran tap water. CHCl3 concentrations for both inlet and outlet samples were detected by gas chromatography (GC) and using electron capture detector (ECD). Results showed that the maximum CHCl3 removal efficiencies for NF 300 Da, NF 600 Da, GAC and AS packed columns under various operating conditions were 87.8%, 85%, 87.4% and 97.6% for deionized water and 86.1%, 72.3%, 85.1, and 91.2% for chlorinated Tehran tap water, respectively. Although NF, GAC and AS showed acceptable performance for CHCl3 removal from drinking water, NF was significantly more effective (p<0.05), providing simultaneously a higher flow rate and simpler operating conditions. This method may be considered for conventional water treatment plant finishing water. air stripping, chloroform, GAC, nanofiltration, water treatment This content is only available as a PDF. © IWA Publishing 2009 You do not currently have access to this content.