desalinization, reverse osmosis, desalinisation, wastewater, ozonation, seawater, hydropower, potable, geothermal, water, ultrafiltration, gasification, cogeneration, sewerage, sewage, electrodialysis, photovoltaic, filtration, effluent, aquaculture, irrigation, groundwater, activated sludge, aquifer, fossil fuel, solar, salinity, hydro, bioremediation, biogas, ionics, mariculture, reactors, biomass, dredging, renewable, fluoridation, freshwater, sewage disposal, depuration, salination, reclamation, chlorination, hydrogen, desulfurization, hydroelectricity, reservoirs, electricity, feedstock, algal, molecular sieve, outfall, hydrometallurgy, flush toilet, petrochemicals, sithe, dams, sweet sorghum, orthophosphate, biofuel, steam turbine, electrification, nitrification, digester, hydrological, salicornia, electrolysis, geothermal energy, nuclear reactor, denitrification, energy, reciprocating engine, incineration, nuclear, purification, reticulation, mld, decarbonization, megawatt, homeporting, lagoons, cellulosic, steg, river basin, recirculation, pentland firth, deoxygenation, demineralization, phosphoric acid, metering, fluoride, decarbonise, clarifier, disinfection, lithium carbonate, pasteurizing, sewer, intertie, recycling, estuarial, landfilling, aqueduct, distillation, desalting, evaporators, reactor, bleaching, installation, installations, plant, reprocessing, turbines, utilisation, classification, cloning, decay, dewatering

chemical action, chemical change, chemical process