PE01 Bio Media MBBR Carrier for South American Wastewater Biofilm Treatment Systems Our BM-K5-BIO PE01 bio media carrier is a premium bio media solution purpose-built for moving bed biofilm reactor (MBBR) and integrated fixed-film activated sludge (IFAS) systems operating in South American wastewater treatment plants. Manufactured from virgin HDPE with precision-engineered internal geometry, these K5-type bio media carriers deliver exceptional biofilm attachment performance,