Concrete oil-water sepn. container with end bulges - holding integral inlet and outlet bores respectively for raw and treated water

摘要

A sunken upright cylindrical container (2) made of water-resistant concrete is used for sepn. either by gravity or coalescence of contaminating oil from waste water. Integrally formed in a bulge (8) projecting from the container end is an approach bore (36) for incoming water, which at the foot of the bone is diverted horizontally by an inclined slope (64) into the main container chamber where oil seperates into a surface layer. A corresponding outlet bore (38) is formed in an integral bulge (10) from the diametrically opposite container end; access to the outlet is controlled by a float valve 196). A coalescent sepn one or more multi-perforated intermediate flaw distributor floors (112) are instilled in the central container zone. or an insert (114) contg; coalescing material, air flowed through upwards . USE - Esp for filling stations, car washes, workshops, or industrial plant.