Modelling of the release of organic compounds from polyethylene pipes to water

Abstract

Research Article| September 01 2007 Modelling of the release of organic compounds from polyethylene pipes to water Martin Denberg; Martin Denberg 1Institute of Environment & Resources, Technical University of Denmark, Bygningstorvet, building 115 2800 Kgs, Lyngby, Denmark Tel.: +45 45251574. Fax: +45 45932850; E-mail: mad@er.dtu.dk Search for other works by this author on: This Site PubMed Google Scholar Erik Arvin; Erik Arvin 1Institute of Environment & Resources, Technical University of Denmark, Bygningstorvet, building 115 2800 Kgs, Lyngby, Denmark Search for other works by this author on: This Site PubMed Google Scholar Ole Hassager Ole Hassager 2Department of Chemical Engineering, Technical University of Denmark, Produktionstorvet, building 423, 2800 Kgs, Lyngby, Denmark Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2007) 56 (6-7): 435–443. https://doi.org/10.2166/aqua.2007.020 Article history Received: April 05 2007 Accepted: June 19 2007 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 Martin Denberg, Erik Arvin, Ole Hassager; Modelling of the release of organic compounds from polyethylene pipes to water. Journal of Water Supply: Research and Technology-Aqua 1 September 2007; 56 (6-7): 435–443. doi: https://doi.org/10.2166/aqua.2007.020 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The use of polyethylene pipes in the distribution network causes contamination of the drinking water. The contaminants are a mixture of phenols, quinones, antioxidants and short polyethylene chains that in general have a functional polar oxygen group. With the use of the film-layer theory and a mass balance for a pipe, an equation is derived to compute the outlet concentration from a given pipe. The equation indicates that if the water in a pipe has a turbulent flow, the water becomes significantly more contaminated by the migrants, compared to water with a laminar flow. The maximum concentration of contaminants is predictable, and is equal to the product of the migrants' concentration in the polymer and its partition coefficient at the polymer and water interface. E.g. the maximum obtainable concentration of a stabilizer, as Irganox® 1010, in drinking water exposed to PE pipes used in Denmark is between 0.2 and 0.3 mg/L if no reaction of the added antioxidant has taken place in the pipe extrusion step. antioxidants, diffusion, drinking water, hydraulics, phenols, polyethylene (PE) pipes This content is only available as a PDF. © IWA Publishing 2007 You do not currently have access to this content.