PT77089B - Process for the treatment and prevention of fouled water treatment solids - Google Patents

Process for the treatment and prevention of fouled water treatment solids

Info

Publication number
PT77089B
PT77089B PT77089A PT7708983A PT77089B PT 77089 B PT77089 B PT 77089B PT 77089 A PT77089 A PT 77089A PT 7708983 A PT7708983 A PT 7708983A PT 77089 B PT77089 B PT 77089B
Authority
PT
Portugal
Prior art keywords
treatment
prevention
solids
water treatment
fouled water
Prior art date
Application number
PT77089A
Other languages
Portuguese (pt)
Other versions
PT77089A (en
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 PT77089A publication Critical patent/PT77089A/en
Publication of PT77089B publication Critical patent/PT77089B/en

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)
PT77089A 1982-07-29 1983-07-22 Process for the treatment and prevention of fouled water treatment solids PT77089B (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
PT77089A PT77089A (en) 1983-08-01
PT77089B true PT77089B (en) 1986-02-12

Family

ID=27017454

Family Applications (1)

Application Number Title Priority Date Filing Date
PT77089A PT77089B (en) 1982-07-29 1983-07-22 Process for the treatment and prevention of fouled water treatment solids

Country Status (12)

Country Link
AT (1) AT394181B (en)
CA (1) CA1218475A (en)
DE (1) DE3327294A1 (en)
ES (1) ES8502407A1 (en)
FI (1) FI832734A (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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1778314B1 (en) * 2004-06-21 2008-11-26 Ecolab Inc. Method of activating membranes
EP1904216A4 (en) 2005-07-12 2008-11-19 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
EP3438243B1 (en) * 2016-03-30 2021-11-17 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
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
ES524516A0 (en) 1985-01-01
DE3327294A1 (en) 1984-02-09
IE831683L (en) 1984-01-29
SE8304157D0 (en) 1983-07-27
NO832745L (en) 1984-01-30
FR2536678B1 (en) 1987-01-02
FR2536678A1 (en) 1984-06-01
AT394181B (en) 1992-02-10
GB2124199B (en) 1986-01-08
NL8302712A (en) 1984-02-16
PT77089A (en) 1983-08-01
FR2530971B1 (en) 1987-01-09
FI832734A (en) 1984-01-30
CA1218475A (en) 1987-02-24
IE55521B1 (en) 1990-10-10
GB8320565D0 (en) 1983-09-01
GB2124199A (en) 1984-02-15
ES8502407A1 (en) 1985-01-01
ATA273383A (en) 1991-08-15
SE8304157L (en) 1984-01-30
FI832734A0 (en) 1983-07-28
FR2530971A1 (en) 1984-02-03

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Legal Events

Date Code Title Description
NF3A Restitutio in integrum

Effective date: 19941128

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19970831