from combustion power generation and municipal solid waste("MSW") systems, including without limitation FGD dewatering systems or zero liquid discharge (ZLD) systems, or associated subsystems, equipment or components thereof, including valves or (ii) that process wastewater as part of or ancillary to the systems set forth in SpinCo Core Field 2(k), 2(l) or 2(n), in each case other than maintenance and operation services performed as part of overall facility operation and management contracts for domestic or foreign government agencies or entities (including but not limited to NNSA, NASA, DOD, DOE, as well as United Kingdom NDA or MOD sites). (n). Industrial emission control, gas cleaning and/or conditioning, or liquids purification and/or recovery systems (other than said systems set forth in RemainCo Core Field 1(m)), including SCR, SNCR, WFGD, SDA, CDS, DSI, other scrubbers, dry ESP, wet ESP, fabric filter, cyclonic, solvent recovery systems, biological abatement systems, solvent distillation systems (including waste water treatment), evaporative gas conditioning and cooling systems or regenerative thermal (and other) oxidation systems or associated subsystems, equipment or components thereof, including valves, for the removal of nitrogen oxides, sulfur oxides, particulates, carbon dioxide, hydrocarbons, or air toxics (e.g., Sb, Be, Cd, Cr, Co, Pb, Mn, Ni, (SO2)3, HF, Hg, P, Se, As, Cd, HCl (or other acid gases)), HAPS, dioxins, furans, others) and/or subsequent energy or waste recovery, other than maintenance and operation services performed as part of overall facility operation and management contracts for domestic or foreign government agencies or entities (including but not limited to NNSA, NASA, DOD, DOE, as well as United Kingdom NDA or MOD sites). (o). Hybrid power generation systems or associated equipment where renewable energy sources are combined with a combustible fossil fuel (e.g., coal, coal slurry, oil or natural gas) or combustible waste fuel (e.g., carbon monoxide, biomass, black liquor, MSW