B BioCon™ BioCon™ : Veolia Water Technologies’ sludge dryer Sludge treatment E Exelys™ Exelys™ is an innovative and complete sludge reduction solution that works in continuous mode, combining thermal hydrolysis and anaerobic digestion. Sludge treatment H Hydrex™ Comprehensive range of water treatment chemicals to suit all water treatment needs. Sludge treatment