Flocculation basin inclusion or exclusion type water treatment apparatus using dissolved air flotation
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorsSung Won Park, Byung Sung Park
Life of this patent
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Abstract
Disclosed herein is a flocculation basin inclusion ion type water treatment apparatus using dissolved air floatation which includes: a flocculation basin which forms flocs by mixing a coagulant inserted into feed water and grows up the flocs; a contact zone to which fine bubbles are induced through a nozzle disposed at a lower part; and a separation zone which removes the flocs when the fine bubbles are attached to the flocs and the flocs float on the surface of water, the flocculation basin inclusion type water treatment apparatus including: a fine bubble forming part.
Claims18
A flocculation basin inclusion type water treatment apparatus using dissolved air floatation (DAF), comprising:
- a flocculation basin configured
- to form flocs by mixing a coagulant inserted into feed water supplied to the flocculation basin and
- to grow the flocs;
- a fine bubble forming part configured to form fine bubbles by receiving a portion of the feed water supplied to the flocculation basin;
- a contact zone to which the fine bubbles are induced through a nozzle disposed at a lower part;
- and
- a separation zone configured to remove the flocs when the fine bubbles are attached to the flocs and the flocs float on the surface of water.
A flocculation basin exclusion type water treatment apparatus using dissolved air floatation (DAF) which includes:
- a contact zone to which fine bubbles are supplied through a nozzle disposed at a lower part and which supplies the fine bubbles to flocs formed in feed water to which a coagulant is mixed;
- and
- a separation zone which removes the flocs when the fine bubbles are attached to the flocs and the flocs float on the surface of water,
- the flocculation basin exclusion type water treatment apparatus comprising a fine bubble forming part,
- wherein the nozzle comprises:
- a housing which is formed in a tube shape and has an inlet formed at a first side and an outlet formed at a second side opposite from the first side;
- a nozzle connection part which is joined to the inlet and has an inflow duct formed in a longitudinal direction;
- and
- a nozzle body which is inserted and mounted into the housing and comprises:
- a collision part formed at a first half part to change a flow direction of fluid induced along the inflow duct to collide with an inner wall of the housing,
- a plurality of cut portions formed in a side of the nozzle body to form a plurality of side flow paths between the nozzle body and the inner wall of the housing,
- a spurt hole provided at a second half part opposite to the first half part,
- a collision plate provided in the spurt hole, and
- an orifice provided between a cut portion of the plurality of cut portions and the spurt hole, such that fluid sprayed through the orifice collides against the collision plate.
Dependencies are inferred from the claim text.