A Athos™ Athos™ is a sludge hydrothermal oxidation (HTO) process that turns organic sludge with low dry matter into an essentially solid mineral. Sludge treatment F Filtraflo™ Filtraflo™ constitutes a complete range of modular and flexible skid-mounted media pressure filters, for municipal and industrial applications Adsorption - Extraction H Hydrotech™ Disc Filters Hydrotech™ mechanical and self-cleaning Disc filters provide reliable suspended solids removal for municipal effluent polishing and industrial water reuse. Filtration