ES2146937T3 - Procedimiento para el procesamiento de baños fotograficos usados. - Google Patents

Procedimiento para el procesamiento de baños fotograficos usados.

Info

Publication number
ES2146937T3
ES2146937T3 ES97107774T ES97107774T ES2146937T3 ES 2146937 T3 ES2146937 T3 ES 2146937T3 ES 97107774 T ES97107774 T ES 97107774T ES 97107774 T ES97107774 T ES 97107774T ES 2146937 T3 ES2146937 T3 ES 2146937T3
Authority
ES
Spain
Prior art keywords
bath
baths
thiosulphate
resulting
adjusted
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 - Lifetime
Application number
ES97107774T
Other languages
English (en)
Inventor
Roger Noero
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2146937T3 publication Critical patent/ES2146937T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/508—Preparation of sulfur dioxide by oxidation of sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/026—Preparation of ammonia from inorganic compounds
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/40—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture or use of photosensitive materials
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/063—Underpressure, vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treating Waste Gases (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

SE PROPONE UN PROCEDIMIENTO PARA EL TRATAMIENTO DE BAÑOS FOTOGRAFICOS USADOS A PARTIR DE PROCESOS EN BLANCO/ NEGRO, ESTO ES, BAÑOS REVELADORES CON UN CONTENIDO PREDOMINANTE DE SULFATO ALCALINO, EN PARTICULAR SULFITO SODICO, Y BAÑOS FIJADORES CON UNA CANTIDAD PREDOMINANTE DE TIOSULFATOS, EN PARTICULAR SULFATO DE AMONIO Y/O SULFATO SODICO, QUE SE CARACTERIZA PORQUE, TRAS SEPARAR LA PLATA CONTENIDA EN LOS BAÑOS, LOS BAÑOS FIJADORES USADOS CON HCL CONCENTRADO SON REDUCIDOS A UN PH 0,5 APROXIMADAMENTE Y PORQUE EL AZUFRE ELEMENTAL PRODUCIDO POR LA DESCOMPOSICION DE LOS TIOSULFATOS ES SEPARADO, MIENTRAS QUE LA SOLUCION INTERMEDIA ACIDOSULFUROSA QUE QUEDA ES MEZCLADA CON LOS BAÑOS REVELADORES USADOS Y AJUSTADA A UN PH 2 APROXIMADAMENTE Y LA SOLUCION PRODUCIDA Y SOBRESATURADA DE SO{SUB,2} ES CALENTADA, EXTRAYENDOSE AL VACIO SO{SUB,2} PURO. FINALMENTE LA SOLUCION RESIDUAL ES AJUSTADA CON CA(OH){SUB,2} A UN PH 10 APROXIMADAMENTE Y EL AMONIACO LIBERADO ES SACADO.
ES97107774T 1996-05-16 1997-05-13 Procedimiento para el procesamiento de baños fotograficos usados. Expired - Lifetime ES2146937T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19619827A DE19619827A1 (de) 1996-05-16 1996-05-16 Verfahren zur Aufarbeitung von verbrauchten fotografischen Bädern

Publications (1)

Publication Number Publication Date
ES2146937T3 true ES2146937T3 (es) 2000-08-16

Family

ID=7794517

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97107774T Expired - Lifetime ES2146937T3 (es) 1996-05-16 1997-05-13 Procedimiento para el procesamiento de baños fotograficos usados.

Country Status (6)

Country Link
US (1) US5863442A (es)
EP (1) EP0807607B1 (es)
JP (1) JPH1067000A (es)
AT (1) ATE191706T1 (es)
DE (2) DE19619827A1 (es)
ES (1) ES2146937T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19908203A1 (de) * 1999-02-25 2000-09-21 Fraunhofer Ges Forschung Verfahren zur Verwertung von Photoabwässern

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829549A (en) * 1972-10-30 1974-08-13 Future Syst Inc Process for treating waste photographic processing solution and recovering residual silver therefrom as a silver halide
JPS5737396B2 (es) * 1974-10-31 1982-08-09
DE3440894C1 (de) * 1984-11-09 1986-06-05 Siegfried T. 6500 Mainz Gellermann Verfahren zur gemeinsamen Aufbereitung von verbrauchten fotografischen Entwickler- und Fixierlösungen
US4755453A (en) * 1986-06-11 1988-07-05 The Governors Of The University Of Alberta Method for recovering silver from waste solutions containing thiosulfate compounds
US4874530A (en) * 1986-12-05 1989-10-17 Knica Corporation Method for treating photographic processing waste solution
NL8902870A (nl) * 1989-11-21 1991-06-17 Leonardus Mathijs Marie Nevels Werkwijze voor de verwerking van restfixeerbaden.
DE4025895A1 (de) * 1990-08-16 1992-02-20 Rolf Ludwig Klaus Zerlegung von entsorgungspflichtigen altfixierbaedern aus der druck- roentgen- und photoindustrie in die einzelnen chem. bestandteile mit nachfolgender synthese zu vollwertigem wieder einsetzbarem fixierbad
US5085836A (en) * 1990-12-03 1992-02-04 E. I. Du Pont De Nemours And Company Process for desilvering silver halide processing fluids
US5160417A (en) * 1991-09-11 1992-11-03 Environmental Systems (International) Ltd. Electrolytic process for treatment of photographic wastewater effluent
JPH07116670A (ja) * 1993-10-27 1995-05-09 K O Eng Kk 写真の現像廃液、定着廃液並びに両混合液の処理方法

Also Published As

Publication number Publication date
JPH1067000A (ja) 1998-03-10
US5863442A (en) 1999-01-26
EP0807607B1 (de) 2000-04-12
DE59701428D1 (de) 2000-05-18
ATE191706T1 (de) 2000-04-15
EP0807607A1 (de) 1997-11-19
DE19619827A1 (de) 1997-11-20

Similar Documents

Publication Publication Date Title
ES2048548T3 (es) Procedimiento para la preparacion de las soluciones acuosas con contenido en sulfuro de hidrogeno, en acido cianhidrico y en amoniaco.
US5565109B1 (en) Hydantoin-enhanced halogen efficacy in pulp and paper applications
FI932534A0 (fi) Foerfarande foer att avlaegsna svavelfoereningar fraon gaser
DE3684154D1 (de) Verfahren und vorrichtung zur photographischen entwicklung.
SE8602495L (sv) Forfarande for avskiljning av kvicksilver fran rok- och processavgaser, jemte anordning herfor
SE8702616L (sv) Saett vid blekning av material med ditionitloesning
IL140266A0 (en) A method of treating a plant or crop
NO881056D0 (no) Katalytisk fjerning av hydrogensulfid fra flytende svovel.
DE59701428D1 (de) Verfahren zur Aufarbeitung von verbrauchten fotografischen Bädern
EP0303951A3 (en) 2-pyrimidinyl-1-piperazine derivatives for treating alcoholism
FI98538B (fi) Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä
PT76869B (en) Process for the preparation of substituted benzoyl-(thio)ureas having an insecticidal effect
DE59704269D1 (de) Verfahren zur Aufbereitung photographischer Bäder aus Color-Prozessen
DE69125722D1 (de) Aufschlussverfahren
ATE134984T1 (de) Verfahren zur herstellung einer alkali- und/oder erdalkalihaltigen aluminiumtriformiatlösung, hochkonzentrierte alkali- und/oder erdalkalihaltige aluminiumtriformiatlösungen und ihre verwendung
JPS5577743A (en) Replenishing method of bleaching agent and fixing agent for color photographic processing
GB8925276D0 (en) Replenishment system for colour paper developer
BR8500657A (pt) Processo de purificacao de dolucoes aquosas de hidrato de hidrazina
EP0529009B1 (en) Improvements relating to a photographic process
EP0263424A3 (en) Process for removing arsenic from waste water containing arsenic
PT81908B (pt) Processo para a fabricacao de carbonato de sodio anidro denso
BR9204331A (pt) Processo de preparacao de um composto e compostos
JPS56151481A (en) Processing method of herring roe
JPS54126028A (en) Treatment of photographic photosensitive material of silver halide
JPS55161035A (en) Silver recovering method for bleach-fix bath

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 807607

Country of ref document: ES