flash point - the temperature at which a flammable liquid gives off sufficient vapour to catch fire when ignited
Temperatura zapłonu

floc - material formed by the flocculation process
Kłaczek

flocculation - the process by which clumps of solids in water are made to increase in size by biological or chemical action so that they can be separated from water
Flokulacja

flotation - separation from a liquid of suspended particles or flocs by their being brought to the surface by means of gas bubbles
Flotacja

flue gases - the gases emitted from a chimney after combustion in the burner it is venting
Spaliny; gazy spalinowe

fluid bed incinerator - a type of incinerator in which the "grate" consists of a bed of mineral granules maintained in a fluidised state by the injection from below of pressurised air
Piec ze złożem fluidalnym

fly ash - commonly, finely divided particles of ash readily entrained in the flue gases arising from combustion of solid fuels
Popiół lotny

fly tipping - the unregulated, and hence illegal, dumping of waste
Nielegalny zrzut odpadów

Fractional distillation - a process involving the application of heat to a mixture of liquids and widely used for the recovery of cleaning and degreasing solvents
Desty...