api oil-water separator acid-base extraction adsorption air conditioning aqueous two phase system azeotrope blood centrifugation centrifuge chromatography coffee filter crystallization cyclonic separation decantation depth filter diatomaceous earth dissolved air flotation distillation drying dust collector electrochromatography electrostatic precipitator evaporator filter filter paper filter press flocculation fluid fractionating column froth flotation gas glomerulus hepa kidney liquid liquid-liquid extraction microfiltration microorganism mixer-settler nanofiltration osmosis particle size distribution pasteur pipette porcelain porosity protein skimmer recrystallization reverse osmosis scrubber sedimentation slurry solution solvent spinning cone still sublimation apparatus supercritical fluid ultrafiltration unit operation wiktionary