BASF, one of world's leading chemical manufacturers, processes active pharmaceutical ingredients at its plant in Cramlington, Northumberland, UK. The company has recently installed a regenerative thermal oxidizer (RTO) supplied by ACWaAir, the pollution control division of ACWa Services, to ensure full compliance with stringent UK emissions regulations enforced by the Environment Agency. The PTO unit from Reeco Stroem utilizes ceramic blocks and a burner zone to remove 99% of the benzene contained in the exhaust gases and to filter out other contaminants.