Rotating Biological Contactor (RBC) sewer package plants were designed and installed for various projects, where it was not possible/feasible to connect to the municipal sewer network. Some advantages of RBC systems include:

• Short contact periods due to large active surface area
• Able to treat a wide range of flows
• Good settling characteristics of sloughed biomass
• Low operating costs
• Low power requirements and,
• Low sludge production.