COMPOSITE MEMBRANE, METHOD FOR PRODUCING THE SAME, ADSORBING FILTER AND METHOD FOR TREATING LIQUID

PROBLEM TO BE SOLVED: To provide a composite membrane having an ability to remove ultra low concentration ions, high water permeability, and a long life, and to provide a method for producing the same.SOLUTION: An ion exchange element 20 comprises a core material 10, flow passage material sheets 9 a...

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Hauptverfasser:	HIRATA KAZUYA, OGAWA YUICHI, MINAGAWA YOSHIE, YAMAGUCHI TAKAYOSHI, KAWAKATSU TAKAHIRO, TANIOKA AKIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BRAIDING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS GENERAL PROCESSES OF COMPOUNDING KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE TRIMMINGS WADDING WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a composite membrane having an ability to remove ultra low concentration ions, high water permeability, and a long life, and to provide a method for producing the same.SOLUTION: An ion exchange element 20 comprises a core material 10, flow passage material sheets 9 and laminated sheets which are wound on the outer periphery of the core material 10. The laminated sheet is prepared by intervening an ion exchange film 3 between ion exchange fiber nonwoven fabrics 4, 4 held on holding sheets 4s. The laminated sheets are passed through heating rollers 1, 2 to press the nonwoven fabrics 4 to the film 3, and the holding sheets 4s are then peeled. An embossing processing may be applied.