SalmonNorwegian processing facilities seek exemptions from new EU requirementsIt is unlikely that any company will get a permanent exemption from the water discharge regulation.Updated EU regulations require companies to use best available technology (BAT) to clean the waste water, which typically means a combination of chemical and biological cleaning to remove particles, nitrogen and phosphorus. The picture is not related to the article.Photo: ShutterstockAnders FurusetHanna Gezelius