Patent ID: 6132620
Filing Date: 2000-10-17
Classification: B01D,C02F

Abstract:
Apparatus for separating liquid contaminant from an aqueous mixture comprising:a first tank for holding a pool of liquid; said first tank having an inlet for receiving liquid: a first outlet for removing liquid at the surface of said pool; and a second outlet for removing liquid from a lower region of said pool;a second tank for holding a pool of liquid; said second tank having an inlet for receiving liquid from said second outlet of said first tank;an external filter, separate from said first and second tanks, for the separation of contaminants from an aqueous mixture;a pneumatically-operated pump for pumping liquid from a lower region of said second tank to and through said external filter means;a liquid level control means for controlling the liquid level in said second tank and the flow rate of liquid pumped by said pump to said external filter.