A whole range of chemicals may migrate from polymers to water in contact with the polymer, for example stabilisers. This may affect the aesthetic quality the water and consumer's health. Some of the chemicals are substrate for bacteria and thus stimulates biological growth (aftergrowth). The research has focused on the identification and quantification of chemicals migrating from polyethylene pipes. Thereby, it has been possible to identify aromatic compounds with isobutyl substitutions which can be used as chemical markers for additives. The aim is to provide data that can be used in models describing water quality in distribution systems. In addition, pipe producers can use the information to optimise the hygienic quality their products.
|Effective start/end date||01/01/2000 → 31/12/2008|