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      A novel perforated electrode flow through cell design for chlorine generation

      Nath, Hilary; Wang, Xjian; Torrens, Rob; Langdon, Alan
      DOI
       10.1007/s10800-010-0248-x
      Link
       www.springerlink.com
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      Citation
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      Nath, H., Wang, X., Torrens, R. & Langdon, A. (2010). A novel perforated electrode flow through cell design for chlorine generation. Journal of Applied Electrochemistry, 41(4), 389-395.
      Permanent Research Commons link: https://hdl.handle.net/10289/5029
      Abstract
      Chlorination remains a predominant method for disinfecting drinking water. Electrogeneration of chlorine has the potential to become the favoured method of chlorine production if costs can be lowered and chlorine generation efficiencies can be improved. A novel perforated electrode flow through (PEFT) cell design has been developed to address these problems. The electrodes were made from low-cost graphite sheets and stainless steel mesh and separated by a non-conducting fabric membrane. This electrode configuration allows reduction of electrode separation to 0.1 mm or less, minimizing cell resistance and increasing electrical efficiency. The new PEFT configuration generates hypochlorite from a 0.5 mol L⁻¹ brine at a current efficiency of better than 60%. As an inline in situ device, it produces chlorine concentrations known to be sufficient to disinfect water, from chloride concentrations as low as 0.004 mol L⁻¹ (available in most natural waters) by a single pass of the water through the cell operating at 11 V. The possibility of a portable device operated by a 12-V battery is indicated.
      Date
      2010
      Type
      Journal Article
      Publisher
      Springer
      Collections
      • Science and Engineering Papers [3124]
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