11 Apparatus and installations for treatment of drinking water in connection with waste water treatment; apparatus and installations for the treatment of water and waste water for use in connection with waste water treatment and waste to energy; clarification apparatus and installations for use in connection with waste water treatment and waste to energy; apparatus and installations for treating sludge; filtration, sterilization and purification apparatus and installations for use in connection with waste water treatment and waste to energy; apparatus and installations for the treatment of organic waste and biomass through anaerobic digestion for producing biogas; digesters, namely, apparatus for containing microorganisms and organic waste or biomass in the absence of oxygen; co-generators powered by biogas for use in connection with waste water treatment and waste to energy; flotation units, namely, apparatus for separating and removing solids from liquids in waste water, biomass, and organic waste; apparatus and installations for improving energy efficiency for use in connection with waste water treatment and waste to energy; apparatus and installations for treating odors and washing of biogas; biodigesters, namely, slurry treatment units for stabilizing and sanitizing slurry, thickening and dewatering machines for use in treatment of liquids including water, industrial effluent and sewage, and airtight chambers in which anaerobic digestion of manure, biosolids, food waste, other organic wastewater streams produce biogas, animal bedding and fertilizer; apparatus and systems for the treatment of organic wastes, including poultry excrement and biomasses through anaerobic digestion for the production of biogas comprising, de-pluming apparatus, de-sanding apparatus, solid and liquid and separation centrifuges, stripping apparatus, membrane filtering apparatus, evaporators and mixing vats; anaerobic digesters, namely, apparatus for anaerobic decomposition of waste; bioreactors for use in the treatment of water, wastewater, and waste; membrane filtration equipment, namely, membrane barriers for solids and liquids separation and liquid and gas separation; equipment for treating water, wastewater, and organic wastes such as agricultural or food processing wastes or waste sludge from industrial or municipal water or wastewater treatment plants, namely, sludge handling and processing equipment, equipment for producing, storing and processing biogas, ammonia concentration, reduction and recovery equipment, evaporators to reduce volume for filtrate and reverse osmosis concentrates, reverse osmosis filters, apparatus, namely, thermal dryers for sewage, sludge, and digestate solids volume reduction, the production of fertilizer products, and the conversion of waste products into a solid fuel; waste processing machines and equipment using pyrolysis to convert waste into liquid fuels and energy; solid waste and food waste processing machines, namely, waste processing machines for thermal processing of waste using heat and chemical breakdown processes; sedimentation tanks for separation and removing solid and heavy physical contaminants from the liquid mixture and for treating a liquid mixture to separate and condition fibres in waste to produce suitable feedstock for anaerobic digestion; anaerobic digester servicing equipment for servicing anaerobic digester apparatus containing microorganisms and organic waste or biomass in the absence of oxygen and components thereof when they are not functioning; biomethane upgrading system comprised of gas purification machines; biogas conditioning equipment, namely, gas-permeable membrane separators for the cleaning and purification of liquid, gas and air used in the chemical and bioethanol industry, industrial scrubbers for removing particulate matter from the air during industrial processing, namely, venturi scrubbers, impingement scrubbers, dynamic scrubbers; equipment for making fertilizer and fertilizer products, namely, organic waste processing machines using heat and chemical breakdown processes