GB1398113A - Precoat composition for semi-permeable membranes - Google Patents

Precoat composition for semi-permeable membranes

Info

Publication number
GB1398113A
GB1398113A GB1434274A GB1434274A GB1398113A GB 1398113 A GB1398113 A GB 1398113A GB 1434274 A GB1434274 A GB 1434274A GB 1434274 A GB1434274 A GB 1434274A GB 1398113 A GB1398113 A GB 1398113A
Authority
GB
United Kingdom
Prior art keywords
absorbent
composition
weight
dispersant
june
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
GB1434274A
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.)
Calgon Corp
Original Assignee
Calgon 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 Calgon Corp filed Critical Calgon Corp
Publication of GB1398113A publication Critical patent/GB1398113A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
    • B01D63/063—Tubular membrane modules with membranes on a surface of a support tube on the inner surface thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/10—Accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/20—Accessories; Auxiliary operations
    • 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
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • B01D69/141—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • B01D69/147—Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes containing embedded adsorbents
    • 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
    • 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
    • B01D2321/166—Use of enzymatic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Dispersion Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

1398113 Activated carbon composition CALGON CORP 16 June 1972 [16 June 1971] 14342/74 Divided out of 1398111 Heading C1A [Also in Divisions B1-B2] A composition for precoating reverse osmosis and ultrafiltration membranes comprises a dispersant and an absorbent-adsorbent mixture of 25 to 95% by weight of an absorbent and 75 to 5% by weight of finely divided activated carbon, the percentages being based on the weight of the absorbent-adsorbent mixture. The dispersant may be sodium metaphosphate. The absorbent may be a clay, bauxite, diatomaceous earth, a zeolite, ground-up fireclay or firebrick, incinerated sewage solids, fly ash, cement dust, vermiculite or green sand. The composition may be applied to the membrane by the use of conventional pressure and flow throughout the system.
GB1434274A 1971-06-16 1972-06-16 Precoat composition for semi-permeable membranes Expired GB1398113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15378971A 1971-06-16 1971-06-16

Publications (1)

Publication Number Publication Date
GB1398113A true GB1398113A (en) 1975-06-18

Family

ID=22548747

Family Applications (4)

Application Number Title Priority Date Filing Date
GB2837472A Expired GB1398111A (en) 1971-06-16 1972-06-16 Treatment of sewage
GB1434274A Expired GB1398113A (en) 1971-06-16 1972-06-16 Precoat composition for semi-permeable membranes
GB1434174A Expired GB1398112A (en) 1971-06-16 1972-06-16 Treatment of reverse osmosis/ultrafiltration membrane systems
GB1434374A Expired GB1398114A (en) 1971-06-16 1972-06-16 Treatment of sewage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2837472A Expired GB1398111A (en) 1971-06-16 1972-06-16 Treatment of sewage

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB1434174A Expired GB1398112A (en) 1971-06-16 1972-06-16 Treatment of reverse osmosis/ultrafiltration membrane systems
GB1434374A Expired GB1398114A (en) 1971-06-16 1972-06-16 Treatment of sewage

Country Status (6)

Country Link
JP (1) JPS5516683B1 (en)
AU (1) AU470424B2 (en)
CA (1) CA1014931A (en)
ES (1) ES403706A1 (en)
GB (4) GB1398111A (en)
IT (1) IT958587B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110124609A (en) * 2019-05-17 2019-08-16 成都理工大学 Composite barrier material and preparation method thereof for contaminated site

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607997A1 (en) * 1976-02-27 1977-09-01 Bayer Ag PROCEDURE FOR REVERSE OSMOSIS WITH HOLLOW FIBER MEMBRANES
US4160726A (en) * 1976-05-07 1979-07-10 Abcor, Inc. Ultrafiltration process for the concentration of polymeric latices
DE4325937A1 (en) * 1993-08-02 1995-02-09 Berkefeld Filter Anlagenbau Gm Process for influencing and decreasing formation of coating in cross-flow membrane filtration
CN104803476B (en) * 2015-03-26 2016-08-10 东北电力大学 Membrane bioreactor quick recovery method
CN106925139B (en) * 2017-04-02 2019-09-13 天津大学 It is a kind of using concave convex rod as the double layered forward osmosis membrane material preparation method of porous support materials
CN108187503B (en) * 2018-01-25 2020-12-22 安徽农业大学 Preparation method of montmorillonite-reinforced chitosan composite cellulose acetate film
CN111285368B (en) * 2018-12-10 2022-05-27 河南工程学院 Preparation method of nitrogen-boron double-doped porous hollow carbon nano-capsule material
CN112843979A (en) * 2020-12-31 2021-05-28 河北鸿科碳素有限公司 Flue gas ultralow emission process for prebaked anode
CN113044922A (en) * 2021-03-15 2021-06-29 北控水务(中国)投资有限公司 Sewage treatment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110124609A (en) * 2019-05-17 2019-08-16 成都理工大学 Composite barrier material and preparation method thereof for contaminated site
CN110124609B (en) * 2019-05-17 2020-12-08 成都理工大学 Composite barrier material for polluted site and preparation method thereof

Also Published As

Publication number Publication date
GB1398114A (en) 1975-06-18
IT958587B (en) 1973-10-30
AU4168872A (en) 1973-11-01
AU470424B2 (en) 1976-03-18
ES403706A1 (en) 1975-10-16
CA1014931A (en) 1977-08-02
JPS5516683B1 (en) 1980-05-06
GB1398112A (en) 1975-06-18
GB1398111A (en) 1975-06-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees