Liquid filtration apparatus and method embodying super-buoyant filtration particles

摘要: A liquid filtering apparatus and method incorporates a super-buoyant filter medium (14) having specific gravity very substantially lower than that of the process being filtered. This feature enables majority to float on top liquid. Due significant differences in between media liquid, produce highly advantageous means naturally, gravimetrically separating both clean contaminated into separate 'phases'. Under normal operation, is contained within housing (13) by bed support (16) near (13), particulate material filtered from passes through (13). To regenerate (14), drained nozzle (44) creates backwash spray (15) washes (14). During process, rises past as level rises, so entire regenerated.