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US 4,287,062 AGranted
Apparatus for biological purification of sewage
OwnerReinhart von Nordenskjoldinventor
Life of this patent
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Abstract
This invention relates to apparatus for the biological purification of sewage, comprising at least one active sludge basin having an inlet and an outlet, and a plurality of bottom aerators suspended adjacent one another from a carrier and supplied by an air supply conduit for introducing air into the sewage adjacent the bottom of said basin, said bottom aerators being disposed in said basin for reciprocating movement therein.
Claims26
Apparatus for the biological purification of sewage by aerobic treatment with active sludge comprising:
- at least one basin (3) for receiving the sewage and having an inlet and an outlet;
- and
- aeration means mounted in said basin, said aeration means including at least one elongated flexible carrier (25) extending across said basin, said carrier lying generally proximate the exposed upper surface of the sewage and having a predetermined amount of longitudinal slack therein, and a plurality of bottom aerators (24) suspended at spaced intervals along said carrier into proximity with the bottom of said basin, said aerators being coupled to an air supply conduit for discharging aerobic treatment air into the sewage and propelling said aeration means by the discharge of the air in a reciprocal motion transversely of the extension of said carrier.
Dependencies are inferred from the claim text.