IT1261242B - Composizione di uno strato filtrante per filtro misto e procedimento d'uso. - Google Patents

Composizione di uno strato filtrante per filtro misto e procedimento d'uso.

Info

Publication number
IT1261242B
IT1261242B ITTO930624A ITTO930624A IT1261242B IT 1261242 B IT1261242 B IT 1261242B IT TO930624 A ITTO930624 A IT TO930624A IT TO930624 A ITTO930624 A IT TO930624A IT 1261242 B IT1261242 B IT 1261242B
Authority
IT
Italy
Prior art keywords
weight
composition
filter
use procedure
organic
Prior art date
Application number
ITTO930624A
Other languages
English (en)
Inventor
Donald H White Jr
Original Assignee
Pall Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pall Corp filed Critical Pall Corp
Publication of ITTO930624A0 publication Critical patent/ITTO930624A0/it
Publication of ITTO930624A1 publication Critical patent/ITTO930624A1/it
Application granted granted Critical
Publication of IT1261242B publication Critical patent/IT1261242B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055—Carbonaceous material
    • B01D39/2058—Carbonaceous material the material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Analytical Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Materials (AREA)

Abstract

Composizione per letto filtrante per la purificazione di acqua per uso umano, contenente contaminanti inorganici, organici e biologici, detta composizione comprendente:(a) da circa il 40% a circa l'80% in peso di assorbente carbonioso;(b) da circa il 5% a circa il 20% in peso di allumina attivata;(c) da circa il 5% a circa il 20% in peso di idrogel di silice,(d) da circa il 5% a circa il 20% in peso di zeolite;e (e) da circa 0% a circa 10% in peso di componenti metallici che formano cationi metallici.La presente invenzione provvede acqua potabile esente da contaminanti organici, inorganici e microbici. La presente invenzione impartisce pure le desiderabili caratteristiche di filtrazione degli assorbenti tradizionali pur evitando l'incremento della contaminazione biologica dell'acqua potabile durante il procedimento di filtrazione.
ITTO930624A 1992-08-20 1993-08-19 Composizione di uno strato filtrante per filtro misto e procedimento d'uso. IT1261242B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/932,596 US5178768A (en) 1992-08-20 1992-08-20 Mixed filter bed composition and method of use

Publications (3)

Publication Number Publication Date
ITTO930624A0 ITTO930624A0 (it) 1993-08-19
ITTO930624A1 ITTO930624A1 (it) 1995-02-19
IT1261242B true IT1261242B (it) 1996-05-09

Family

ID=25462570

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO930624A IT1261242B (it) 1992-08-20 1993-08-19 Composizione di uno strato filtrante per filtro misto e procedimento d'uso.

Country Status (7)

Country Link
US (1) US5178768A (it)
JP (1) JP2706658B2 (it)
CA (1) CA2079820C (it)
DE (1) DE4327981C2 (it)
FR (1) FR2694928B1 (it)
GB (1) GB2269815B (it)
IT (1) IT1261242B (it)

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US6254894B1 (en) 1996-04-05 2001-07-03 Zodiac Pool Care, Inc. Silver self-regulating water purification compositions and methods
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US20020195407A1 (en) * 1997-03-18 2002-12-26 Ehud Levy Purfication media
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JPH1143365A (ja) * 1997-07-23 1999-02-16 Tohoku Bankin Toso Kogyo Kk 還元水用粒状セラミックスおよびその製造方法
US5880047A (en) * 1997-08-13 1999-03-09 Tohoku Bankin Toso Kogyo Kabushiki Kaisha Granular ceramic for improving burning efficiency of hydrocarbon oils and method of producing the same
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US6989101B2 (en) 2003-04-04 2006-01-24 The Clorox Company Microorganism-removing filter medium having high isoelectric material and low melt index binder
WO2005028378A1 (en) * 2003-09-15 2005-03-31 University Of Delaware Removal of microorganisms and disinfection byproduct precursors using elemental iron or aluminum
US7314568B2 (en) * 2003-12-01 2008-01-01 Shay Dale A Water conditioning system
JP2007512956A (ja) * 2003-12-04 2007-05-24 アクセス ビジネス グループ インターナショナル リミテッド ライアビリティ カンパニー 静菌性流体フィルタ
US7491337B2 (en) * 2004-04-23 2009-02-17 Jeffbrad Investments Pty Limited Method and apparatus for removing contaminants from water
US7250126B2 (en) * 2004-08-11 2007-07-31 Fleetguard, Inc. Acid-neutralizing filter media
WO2006065825A2 (en) * 2004-12-13 2006-06-22 University Of Hawaii Generation of free radicals, analytical methods, bacterial disinfections, and oxidative destruction of organic chemicals using zero valent iron and other metals
US8066874B2 (en) * 2006-12-28 2011-11-29 Molycorp Minerals, Llc Apparatus for treating a flow of an aqueous solution containing arsenic
CN101802213B (zh) * 2007-08-01 2013-12-25 日立化成工业株式会社 大体积颗粒样品中的病原体检测
US8349764B2 (en) * 2007-10-31 2013-01-08 Molycorp Minerals, Llc Composition for treating a fluid
US20090107925A1 (en) * 2007-10-31 2009-04-30 Chevron U.S.A. Inc. Apparatus and process for treating an aqueous solution containing biological contaminants
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Also Published As

Publication number Publication date
FR2694928A1 (fr) 1994-02-25
DE4327981C2 (de) 1996-06-20
GB9315363D0 (en) 1993-09-08
ITTO930624A1 (it) 1995-02-19
GB2269815A (en) 1994-02-23
JP2706658B2 (ja) 1998-01-28
DE4327981A1 (de) 1994-02-24
US5178768A (en) 1993-01-12
ITTO930624A0 (it) 1993-08-19
FR2694928B1 (fr) 1996-07-19
JPH06254546A (ja) 1994-09-13
GB2269815B (en) 1996-04-03
CA2079820C (en) 1998-07-28
CA2079820A1 (en) 1994-02-21

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970827