Immersed membrane filtration system and overflow process

Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...

Reexamination Certificate

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Details

C210S636000, C210S760000, C210S220000, C210S321800, C210S333010, C210S333100, C210S321690

Reexamination Certificate

active

06893568

ABSTRACT:
Modules of ultrafiltration or microfiltration membranes are arranged in a tank open to the atmosphere to substantially cover the cross sectional area of the tank. A filtration cycle has permeation steps and deconcentration steps. During permeation, supply of feed substantially equals feed removed and little if any aeration is used During deconcentration, aeration with scouring bubbles is provided with one or both of backwashing and feed flushing. In feed flushing, feed water is supplied to the tank from below the modules. Excess tank water created during deconcentration flows generally upwards through the modules and out through a retentate outlet or overflow at the top of the tank.

REFERENCES:
patent: 5248424 (1993-09-01), Cote et al.
patent: 5607593 (1997-03-01), Cote et al.
patent: 5783083 (1998-07-01), Henshaw et al.
patent: 5944997 (1999-08-01), Pedersen et al.
patent: 5958243 (1999-09-01), Lawrence et al.
patent: 6045698 (2000-04-01), Cote et al.
patent: 6156200 (2000-12-01), Zha et al.
patent: 6193890 (2001-02-01), Pedersen et al.
patent: 6214231 (2001-04-01), Cote et al.
patent: 6325928 (2001-12-01), Pedersen et al.
patent: 6375848 (2002-04-01), Cote et al.
patent: 1 034 835 (2000-09-01), None
patent: 6218237 (1994-08-01), None
patent: 7155758 (1995-06-01), None
patent: 09220569 (1997-08-01), None
patent: 11-165200 (1998-11-01), None
patent: WO 9828066 (1998-07-01), None
Johnson, Warren T., “Recent Advances in Microfiltration for Drinking Water Treatment”, presented at the AWWA Conference in Chicago, Jun. 20-24, 1999.

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