IT1256432B - Procedimento per la separazione di sostanze disciolte in un liquido. - Google Patents

Procedimento per la separazione di sostanze disciolte in un liquido.

Info

Publication number
IT1256432B
IT1256432B ITMI922642A ITMI922642A IT1256432B IT 1256432 B IT1256432 B IT 1256432B IT MI922642 A ITMI922642 A IT MI922642A IT MI922642 A ITMI922642 A IT MI922642A IT 1256432 B IT1256432 B IT 1256432B
Authority
IT
Italy
Prior art keywords
chemicals
stage
separation
liquid
solvents
Prior art date
Application number
ITMI922642A
Other languages
English (en)
Inventor
Jorge Yacubowicz
Original Assignee
Labocontrol Ag
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 Labocontrol Ag filed Critical Labocontrol Ag
Publication of ITMI922642A0 publication Critical patent/ITMI922642A0/it
Publication of ITMI922642A1 publication Critical patent/ITMI922642A1/it
Application granted granted Critical
Publication of IT1256432B publication Critical patent/IT1256432B/it

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor
    • G03C5/3956—Microseparation techniques using membranes, e.g. reverse osmosis, ion exchange, resins, active charcoal
    • 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
    • B01D61/027—Nanofiltration
    • B01D61/0271—Nanofiltration comprising multiple nanofiltration steps
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/31—Regeneration; Replenishers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Per pulire un'acqua di scarico poco carica o un liquido con piccole porzioni di componenti disciolti o per portare le sostanze chimiche disciolte ed anche i solventi in una forma reimpiegabile, in uno stadio di pulitura o separazione vengono fatti funzionare alternativamente due filtri a membrana (6, 7) in cui il primo filtro a membrana (6) è atto a separare i componenti disciolti con elevato passaggio e piccola concentrazione, mentre il secondo filtro a membrana (7) è predisposto per un basso passaggio ed elevata concentrazione. Con ciò è possibile separare nelle soluzioni diluite di sostanze chimiche, le sostanze chimiche dai solventi, per impiegare nuovamente sia il solvente come anche le sostanze chimiche a seconda della possibilità. A questo riguardo durante il primo stadio di pulitura si recupera la quantità principale di solvente, mentre nella seconda fase le sostanze chimiche separate vengono portate ad una concentrazione più elevata per poter essere trattate ulteriormente per mezzo di noti procedimenti di separazione economicamente ragionevoli (Figura 1).
ITMI922642A 1991-11-21 1992-11-19 Procedimento per la separazione di sostanze disciolte in un liquido. IT1256432B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH341691 1991-11-21

Publications (3)

Publication Number Publication Date
ITMI922642A0 ITMI922642A0 (it) 1992-11-19
ITMI922642A1 ITMI922642A1 (it) 1994-05-19
IT1256432B true IT1256432B (it) 1995-12-05

Family

ID=4255511

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922642A IT1256432B (it) 1991-11-21 1992-11-19 Procedimento per la separazione di sostanze disciolte in un liquido.

Country Status (3)

Country Link
DE (1) DE4236713A1 (it)
FR (1) FR2684024A1 (it)
IT (1) IT1256432B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721227B1 (fr) * 1994-06-17 1996-08-14 Kodak Pathe Procédé et dispositif pour la séparation de substance dissoutes dans les eaux de rinçage utilisées en aval d'un bain de traitement d'un film photographique.
DE4442393C1 (de) * 1994-11-29 1995-09-21 Umweltkompatible Prozestechnik Verfahren zur Aufbereitung von Brüdenkondensat mittels Umkehrosmosemembranen
FR2737022B1 (fr) * 1995-07-20 2003-02-07 Kodak Pathe Procede et dispositif de traitement d'un film photographique
FR2737792B1 (fr) * 1995-08-11 1997-09-12 Kodak Pathe Procede et dispositif pour l'extraction selective des ions halogenures des bains photographiques
DE19600967C2 (de) 1996-01-12 1998-06-04 Schweizer Electronic Ag Verfahren zum Auftrennen von aus der Leiterplattenherstellung stammenden organischen Prozeßlösungen
FR2748130B1 (fr) * 1996-04-29 2004-04-09 Kodak Pathe Procede et dispositif pour l'extraction selective des ions halogenures des bains photographiques
FR2752749B1 (fr) * 1996-09-04 1998-12-04 Kodak Pathe Dispositif pour retenir des especes chimiques contenues dans une composition liquide
GB9820935D0 (en) * 1998-09-25 1998-11-18 Pall Corp Filtration system
DE102008034588A1 (de) * 2008-07-25 2010-01-28 Aqua Living Gmbh & Co. Kg Vorrichtung und Verfahren zur Wasseraufbereitung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2510309A1 (de) * 1975-03-10 1976-09-23 Hoechst Ag Verfahren und anlage zur trennung von substanzgemischen
US4165288A (en) * 1977-07-05 1979-08-21 Riegel Textile Corporation Process of treating waste water from a textile vat dyeing operation to produce a concentrate for reuse
JPS5950277B2 (ja) * 1980-12-30 1984-12-07 日東電工株式会社 粗製グリセリド油組成物の精製方法
HU200563B (en) * 1987-03-06 1990-07-28 Laszlo Szuecs Method and apparatus for treating liquids consist of foreign matter by diaphragm filter device
JPH0817913B2 (ja) * 1989-06-19 1996-02-28 農林水産省食品総合研究所長 多段逆浸透濃縮装置

Also Published As

Publication number Publication date
ITMI922642A1 (it) 1994-05-19
DE4236713A1 (en) 1993-05-27
FR2684024A1 (fr) 1993-05-28
ITMI922642A0 (it) 1992-11-19

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