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Apparatus to separate liquid from solid by compression, extractor, to dehydrate by compression; Apparatus to create compost by compression

Machines used for managing surplus sludge from biochemical treatments, livestock wastewater, as well as oil bearing sludge from dissolved-air flotation thickening tanks and for removing water from the sludge creating a cake like substance which lowers the costs of wastewater treatment, namely, apparatus to dehydrate by compression, apparatus to dissolve flocculants, apparatus to separate liquid from solid by compression, extractor to dehydrate, apparatus to dehydrate dirty mud by compression, apparatus to dehydrate waste to turn them into something to be disposed easily, dehydrating apparatus, apparatus to prevent water from soiling, apparatus to purify dirty liquid, apparatus to dispose of sewage, device to dispose of dirty mud, apparatus to dispose of oil waste, and apparatus to separate liquid waste from solid waste, apparatus to dehydrate dirty mud to create compost by compression