Sewage/wastewater treatment system using granular activated sludge and membrane bio-reactor and sewage/wastewater treatment method using the same
First Claim
1. A raw water treatment system using a granular activated sludge blanket and submerged movable membranes, the system comprising:
- an indirect aeration tank adapted to supply air to the indirect aeration tank and to treat raw water by allowing dissolved oxygen contained in the raw water to reach a saturation concentration;
a granulation tank adapted to allow floating microorganisms contained in treated water passing through the indirect aeration tank to be granulated and form the granular activated sludge blanket in a lower portion of the granulation tank; and
the submerged movable membranes located in an upper portion of the granulation tank and adapted to be movable in the upper portion of the granulation tank,wherein the granulation tank includes an agitator adapted to agitate the granular activated sludge blanket using a single motor for driving the submerged movable membranes in the granulation tank.
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Accused Products
Abstract
The present disclosure relates to a sewage/wastewater treatment system using granular activated sludge and a membrane bio-reactor and a sewage/wastewater treatment method using the same that are configured to effectively remove pollutants contained in raw water through a granulation tank in which the granular activated sludge is contained and to allow the raw water to be filtered through movable membranes located on the upper portion of the granulation tank. The system includes: an indirect aeration tank adapted to supply air thereto to allow dissolved oxygen contained in raw water to reach a saturation concentration; a granulation tank adapted to allow floating microorganisms contained in the treated water passing through the indirect aeration tank to be granulated and having a sludge blanket formed thereon; and movable membranes located on the upper portion of the granulation tank in such a manner as to be movable in the granulation tank.
2 Citations
15 Claims
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1. A raw water treatment system using a granular activated sludge blanket and submerged movable membranes, the system comprising:
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an indirect aeration tank adapted to supply air to the indirect aeration tank and to treat raw water by allowing dissolved oxygen contained in the raw water to reach a saturation concentration; a granulation tank adapted to allow floating microorganisms contained in treated water passing through the indirect aeration tank to be granulated and form the granular activated sludge blanket in a lower portion of the granulation tank; and the submerged movable membranes located in an upper portion of the granulation tank and adapted to be movable in the upper portion of the granulation tank, wherein the granulation tank includes an agitator adapted to agitate the granular activated sludge blanket using a single motor for driving the submerged movable membranes in the granulation tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A raw water treatment system using a granular activated sludge blanket and submerged movable membranes, the system comprising:
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an indirect aeration tank adapted to supply air to the indirect aeration tank and to treat raw water by allowing dissolved oxygen contained in the raw water to reach a saturation concentration; a granulation tank adapted to allow floating microorganisms contained in treated water passing through the indirect aeration tank to be granulated and form the granular activated sludge blanket in a lower portion of the granulation tank; the submerged movable membranes located in an upper portion of the granulation tank and adapted to be movable in the upper portion of the granulation tank; and an auxiliary water circulation line adapted to allow the treated water passing through the granular activated sludge blanket to be circulated again from the upper portion of the granulation tank directly to the lower portion of the granulation tank. - View Dependent Claims (13, 14, 15)
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Specification