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FR2530971B1 - PROCESS FOR IMPROVING AND MAINTAINING THE PERFORMANCE OF WATER TREATMENT SOLIDS - Google Patents

PROCESS FOR IMPROVING AND MAINTAINING THE PERFORMANCE OF WATER TREATMENT SOLIDS

Info

Publication number
FR2530971B1
FR2530971B1 FR8312482A FR8312482A FR2530971B1 FR 2530971 B1 FR2530971 B1 FR 2530971B1 FR 8312482 A FR8312482 A FR 8312482A FR 8312482 A FR8312482 A FR 8312482A FR 2530971 B1 FR2530971 B1 FR 2530971B1
Authority
FR
France
Prior art keywords
maintaining
improving
performance
water treatment
treatment solids
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR8312482A
Other languages
French (fr)
Other versions
FR2530971A1 (en
Inventor
Alfred W Oberhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of FR2530971A1 publication Critical patent/FR2530971A1/en
Application granted granted Critical
Publication of FR2530971B1 publication Critical patent/FR2530971B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • 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
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/60—Cleaning or rinsing ion-exchange beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04—Backflushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)
  • Detergent Compositions (AREA)
FR8312482A 1982-07-29 1983-07-28 PROCESS FOR IMPROVING AND MAINTAINING THE PERFORMANCE OF WATER TREATMENT SOLIDS Expired FR2530971B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40143482A 1982-07-29 1982-07-29
US50368583A 1983-06-17 1983-06-17

Publications (2)

Publication Number Publication Date
FR2530971A1 FR2530971A1 (en) 1984-02-03
FR2530971B1 true FR2530971B1 (en) 1987-01-09

Family

ID=27017454

Family Applications (2)

Application Number Title Priority Date Filing Date
FR8312482A Expired FR2530971B1 (en) 1982-07-29 1983-07-28 PROCESS FOR IMPROVING AND MAINTAINING THE PERFORMANCE OF WATER TREATMENT SOLIDS
FR8401829A Expired FR2536678B1 (en) 1982-07-29 1984-02-07

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR8401829A Expired FR2536678B1 (en) 1982-07-29 1984-02-07

Country Status (12)

Country Link
AT (1) AT394181B (en)
CA (1) CA1218475A (en)
DE (1) DE3327294A1 (en)
ES (1) ES524516A0 (en)
FI (1) FI832734A7 (en)
FR (2) FR2530971B1 (en)
GB (1) GB2124199B (en)
IE (1) IE55521B1 (en)
NL (1) NL8302712A (en)
NO (1) NO832745L (en)
PT (1) PT77089B (en)
SE (1) SE8304157L (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004018041D1 (en) * 2004-06-21 2009-01-08 Ecolab Inc METHOD OF ACTIVATING MEMBRANES
EP3189885A1 (en) 2005-07-12 2017-07-12 Zenon Technology Partnership Process control for an immersed membrane system
US7662289B2 (en) * 2007-01-16 2010-02-16 Nalco Company Method of cleaning fouled or scaled membranes
US7674382B2 (en) * 2007-05-03 2010-03-09 Nalco Company Method of cleaning fouled and/or scaled membranes
US20100158852A1 (en) * 2008-12-22 2010-06-24 Wilson Kurt Whitekettle Method for reduction of microbes on surfaces
CN105699571B (en) * 2016-03-18 2017-12-15 中华人民共和国鄞州出入境检验检疫局 Assay method of the short chain to tert-octylphenol ethoxylate in a kind of textile
US20190118145A1 (en) * 2016-03-30 2019-04-25 Toray Industries, Inc. Method for filtering microbial culture solution using membrane module
CN107381966B (en) * 2017-09-04 2023-05-19 北京东方园林环境股份有限公司 Composite constructed wetland system for efficiently treating ammonia nitrogen wastewater
CN116621405A (en) * 2023-06-20 2023-08-22 华中科技大学 A method of coupling freeze-thaw and dehydrating agent to realize deep dehydration of non-mechanical sludge
CN117467862B (en) * 2023-12-22 2024-03-29 核工业北京化工冶金研究院 Method for preventing resin organic matter poisoning in neutral leaching uranium mining hydrometallurgy process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR906825A (en) * 1942-10-02 1946-02-21 Ig Farbenindustrie Ag Process for ridding substances with an exchange action of impurities which clog them
US2571271A (en) * 1948-01-20 1951-10-16 Wallace & Tiernan Inc Sterilization of ion exchange bodies
US2977313A (en) * 1956-05-22 1961-03-28 Hagan Chemicals & Controls Inc Method of cleansing, sterilizing, and preventing corrosion in base exchange and cation exchange systems and products used therein
US3299617A (en) * 1964-04-09 1967-01-24 Culligan Inc Method of removing entrapped gas from an ion exchange resin bed
US3748285A (en) * 1972-06-26 1973-07-24 Nalco Chemical Co Composition and process for cleaning ion exchange resins
US4389253A (en) * 1980-10-30 1983-06-21 Hitachi, Ltd. Process for removing crud from ion exchange resin
US4357254A (en) * 1981-01-12 1982-11-02 Chemical Sciences, Inc. Cleaning composition

Also Published As

Publication number Publication date
NL8302712A (en) 1984-02-16
ES8502407A1 (en) 1985-01-01
IE55521B1 (en) 1990-10-10
GB2124199A (en) 1984-02-15
SE8304157D0 (en) 1983-07-27
GB2124199B (en) 1986-01-08
GB8320565D0 (en) 1983-09-01
ATA273383A (en) 1991-08-15
SE8304157L (en) 1984-01-30
FR2530971A1 (en) 1984-02-03
PT77089A (en) 1983-08-01
PT77089B (en) 1986-02-12
ES524516A0 (en) 1985-01-01
FI832734A0 (en) 1983-07-28
IE831683L (en) 1984-01-29
FI832734A7 (en) 1984-01-30
NO832745L (en) 1984-01-30
DE3327294A1 (en) 1984-02-09
FR2536678A1 (en) 1984-06-01
FR2536678B1 (en) 1987-01-02
CA1218475A (en) 1987-02-24
AT394181B (en) 1992-02-10

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse