Severn Trent Water is testing a wastewater treatment unit that is claimed to consume less energy compared to other systems used by utilities.rnThe HYBACS (Hybrid Bacillus Activated Sludge) unit contains a newly designed rotating biological contactor (RBC) that is claimed to speed up the water treatment process too.rnThe RBC is a biological treatment tank that consists of closely spaced plastic plates mounted on a rotor, which is supported above the surface of the wastewater.
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