11 Water, waste water and effluent treatment apparatus, installations and plants, namely, reverse osmosis units and plants, forward osmosis units and plants, water filtration units and plants, membrane filtration units and plants, water purifying apparatus, water and wastewater concentration units and plants, water remediation and recovery units and plants, water desalination units and plants, waste water treatment units and plants, water purification and disinfection units and plants; desalination apparatus, installations and plants, namely, water desalination units and plants, intake systems, pre-treatment systems, membrane desalination units, thermal desalination units and post-treatment systems; portable water, waste water and effluent supply systems comprised of valves, filters and regulators, vessels, pressure vessels, pumps, pipes, control instruments, on line sensors, membranes, compressors, blowers, air systems, belt filters, centrifuges; equipment for the treatment of wastewater, namely, aeration, diffusers, diffuser headers, clarifiers, water filtering units, complete activated sludge processing plants, and structural parts therefor; Water treatment apparatus, namely, activated sludge reactors, biodigesters, anaerobic and aerobic digesters, biogas generators; Water treatment apparatus, namely, apparatus for thickening and dewatering sludge, water, industrial effluent and waste water; constructed wetlands treatment plants in the nature of waste water treatment plants and effluent polishing; rainwater and storm water collection systems for residential and commercial use; Water treatment equipment, namely, membrane bioreactors for use in the treatment of water and wastewater; water ionizers; water supply apparatus, namely, water purification, sedimentation and filtration apparatus for clarification, thickening and filtration of water and waste water; regulating accessories for water supply, namely, valves, and pipes; Water treatment equipment in the nature of water reservoirs, namely, water tanks, liners and floating covers for sealing and preventing evaporation and water contamination; UV and ozone disinfection systems for water, wastewater and reclaimed water treatment comprised of Ozone and UV sanitizers for air and water; Advanced Oxidation Process (AOP) units and plants