Advanced submerged membrane modules, systems and processes
First Claim
1. A submerged membrane system comprising:
- a plurality of membrane modules releasably attached to a circular permeate top header, the top header movably attached to a motor-driven gear on a helical path in oscillating motion having simultaneous 360°
-circular motion in horizontal plane and linear motion in vertical direction;
the membrane modules submerged in a tank of water;
each membrane module comprising a plurality of hollow fiber or flat sheet membranes; and
an aerator which generates air bubbles and provides liquid vortex flow around the membrane modules.
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Abstract
Advanced submerged membrane systems are provided. Said submerged membrane systems have multiple membrane modules comprising of strips of flat sheet membrane, bundles of self-support hollow fiber membranes braided together for reinforcement, tubular membranes, and braid supported hollow fiber membranes. Said submerged membrane systems have alternating relay, or two-way floating switch or computer to control filtration and back flush/pulse cleaning. Said submerged membrane systems have an oscillating motor, and aerator which can generate liquid vortex (whirlpool) flow around membrane to keep membrane from fouling. The present invention provides advanced submerge membrane systems at very low cost for drinking water production, wastewater treatment and membrane bioreactors for biotech, pharmaceutical and other industries.
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Citations
13 Claims
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1. A submerged membrane system comprising:
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a plurality of membrane modules releasably attached to a circular permeate top header, the top header movably attached to a motor-driven gear on a helical path in oscillating motion having simultaneous 360°
-circular motion in horizontal plane and linear motion in vertical direction;the membrane modules submerged in a tank of water; each membrane module comprising a plurality of hollow fiber or flat sheet membranes; and an aerator which generates air bubbles and provides liquid vortex flow around the membrane modules. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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2. A submerged membrane system comprising:
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a plurality of membrane module arrays, the membrane module arrays submerged in a tank of water, each of said membrane module array comprising a plurality of membrane modules releasably attached to a circular permeate top header, the circular permeate top headers being connected together by a beam, said beam movably linked to a motor mounted on a plate, said plate having wheels and movable on an angular track;
the assembly of the motor, the plate and the beam movable together to provide vertical, horizontal and circular movement of the membrane modules;each membrane module comprising a plurality of hollow fiber or flat sheet membranes; and an aerator which generates air bubbles and provides liquid vortex flow around the membrane modules.
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Specification