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Christophe Anselme, Loic Daniel: Method of changing operating modes in automatic water filtering apparatus using tubular membranes. Lyonnaise Des Eaux Dumez, Amster Rothstein & Ebenstein, November 19, 1991: US05066402 (116 worldwide citation)

A method of changing operating modes in automatic water filtering apparatus comprising inside-skin tubular membrane modules for filtering water, the possible filtering modes being: dead-end filtering; cross-flow filtering; and cross-flow filtering with continuous purging; both cross-flow filtering m ...


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Bjorn Ericson, Olle Esser: Method and device for monitoring an infusion pump. Gambro, Lerner David Littenberg Krumholz & Mentlik, October 31, 2000: US06139748 (78 worldwide citation)

Methods and apparatus are disclosed for monitoring an infusion pump utilized in a dialysis machine for hemodiafiltration or hemofiltration. The apparatus includes a first flow circuit for a dialysis solution, including a flow meter, a second flow circuit for blood, the dialysis apparatus including a ...


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Corinne Cabassud, Philippe Aptel: Process for cleaning mesoporous tubular ultrafiltration membranes. Dumez Lyonnaise Eaux, October 2, 1992: FR2674448-A1 (76 worldwide citation)

Process for cleaning mesoporous tubular ultrafiltration membranes fitted as a bundle in a housing, with bounding of a concentrate compartment where the retained substances accumulate both in suspension and on the membranes, and of a permeate compartment collecting the filtered liquid, characterised ...


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Suga Nobuhiko, Kikuchi Toshiaki: Hollow fiber membrane module. Asahi Chem, July 4, 2000: JP2000-185220 (51 worldwide citation)

PROBLEM TO BE SOLVED: To entirely disperse a hollow fiber membrane in the diametral direction and stabilize a filtration performance over a long time by setting a partition and an introduction bar in the hollow fiber membrane bundle of an adhesive fixing part, in a module with plural pieces of hollo ...


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Yamada Yosuke, Ogami Mitsuhiro, Nakajima Akira: Filtering device. Zenken, November 21, 2000: JP2000-317276 (50 worldwide citation)

PROBLEM TO BE SOLVED: To prevent clogging in a hollow fiber membrane type filtering device. SOLUTION: A housing case 11 is divided by a funnel shaped bottom face 12a into two parts consisting of a filtering chamber 12 in an upper side and a deposition recovering chamber 13 in a lower side. A liquid ...


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Zha Fufang, James Gerin, Zuback Joseph Edward, Zauner Peter, Phelps Roger William: Membrane cleaning with pulsed airlift pump. Siemens Water Technologies, Zha Fufang, James Gerin, Zuback Joseph Edward, Zauner Peter, Phelps Roger William, sMUSACCHIO Pasquale, December 18, 2008: WO/2008/153818 (42 worldwide citation)

A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a pluralit ...


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William N Torline, Richard K Williams: Method and apparatus for processing oily wastewater. Madison Chemical Company, Foley & Lardner, July 13, 1993: US05227071 (39 worldwide citation)

A five stage treatment system for treating oily wastewater to fit it for discharge to surface waters comprising a coalescer for separating free oil, an ultrafiltration unit for separating emulsified oil, an activated carbon filter for separating residual light organic compounds, a cation exchanger f ...


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Dennis H Green: Liquid treatment system and method for operating the same. Harrison Western Environmental Services, Jay K Klaas Law O Meara & Malkin Malkin, December 19, 1995: US05476591 (31 worldwide citation)

A treatment system for removing metal ions from liquids. A metal ion-containing liquid (e.g. water or an acidic mining leachate) is first passed through a nanofiltration membrane system to produce a metal ion-rich retentate and a permeate. The retentate may be saved for metal recovery or discarded. ...


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