B BioTherm™ By using BioTherm™ the amount of sludge is reduced as a considerable part of the organic matter contained within the sludge is converted into biogas, and the digested sludge is dewatered to achieve a high dry solids content. Sludge treatment E Elga Biopure™ 200/300/600 The Biopure 200/300/600 reduces the contamination risk to patients by feeding high purity water at the point of use to large automated washer disinfectors and endoscope reprocessors. Membrane Filtration (MF/UF/NF) H Hydrex™ Comprehensive range of water treatment chemicals to suit all water treatment needs. Sludge treatment