Liquid filtration apparatus and method embodying filtration particles having specific gravity less than liquid being filtered

摘要: A liquid filtering apparatus which incorporates a filter bed medium having specific gravity lower than that of the process being filtered. Process is pumped through one or more chambers containing medium. discharge line at top housing directs filtered either back into tank stream, clean storage tank. small provides volume for use in backwashing The particle size and nature are determined by identity to be so buoyant on liquid. As chamber, composite floats chamber where it stops rising. then passes particulates strained from surface filtration depth filtration. includes backwash pump, single plurality nozzles, valve, waste particulate collection reservoir. During cycle, stored cleaned fluid withdrawn reservoir pump forced spray nozzle(s).