JPS63319097A - Treatment of waste photographic processing fluid by evaporation - Google Patents

Abstract

PURPOSE:To treat waste fluids to be treated together by feeding the waste fluids to a common waste fluid treating device and carrying out treatment by evaporation. CONSTITUTION:Waste fluid produced by the photographic processing of negative color films is accumulated in a buffer tank C1. Waste fluid produced from an automatic developing device for color films is accumulated in a buffer tank C2. Both the waste fluids are mixed and concentrated by heating until the amt. is reduced to 1/4-1/10. The heating can be carried out with a gas burner, an electric heater, a ceramic heater or other heating means. Generated vapor is solidified with a freezing means. Thus, the emission of an offensive or nasty odor during treatment by evaporation can be inhibited and an installment space can be reduced.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for evaporating waste liquid generated in the development process of photographic light-sensitive materials, and in particular, to a method for evaporating waste liquid generated during the development process of photographic light-sensitive materials, and in particular, to a method for evaporating waste liquid generated during the development process of photographic light-sensitive materials, and in particular, to a process for photographic processing of negative color film and photography of negative color paper. The present invention relates to a method for evaporating photographic processing waste liquid that uniformly processes photographic processing waste liquid generated from processing.

In this specification, waste liquid generated during the development processing of photographic light-sensitive materials is abbreviated as photographic processing waste liquid or waste liquid.

[Background of the Invention] Conventionally, photographic processing waste liquid or washing water was generally disposed of by diluting it with cooling water from an automatic processor and then disposing of it in a sewer, etc.; From the viewpoint of pollution prevention, it is virtually impossible to dispose of photographic processing liquids other than submerged water or cooling water into sewers or rivers.

For this reason, they are forced to take measures such as paying a collection fee to a specialized waste liquid processing company to collect the waste liquid, or installing pollution prevention equipment. However, it would take up a considerable amount of space or a planet, and it would also be extremely expensive.

In recent years, photographic processing using a stabilizing process that replaces washing with water and using virtually no washing water or cooling water (the so-called waterless washing method) has become popular.

According to this method, the amount of waste liquid is small and the external piping for supplying and draining liquid can be omitted; (A) It is difficult to move after installation because of the external piping; (B) Space under the feet (C) It costs a lot of money for the plumber 4G to install it. [
D] It is foreseeable that all of the drawbacks of conventional automatic processors, such as the energy cost required for supplying hot water, will be eliminated, and that they will be used as office machines.

However, even in so-called waterless photographic processing, which does not actually involve washing with water, although the amount of waste liquid is small,
Even if the processing is relatively small-scale, for example, processing of X-ray photosensitive materials will be about 10 tai per day, processing of photosensitive materials for printing plate making will be about 30 tai, and processing of color photosensitive materials will be about 50 tai per day. However, if the waste liquid is left to be treated using the conventional method, it may result in the loss of the advantages of waterless photographic processing.Therefore, improvement of waste liquid treatment technology is an immediate issue. It has become.

Thus, in order to realize the use of automatic processors as office machines, further improvements in waste liquid treatment technology are required.

One of the techniques that seems to be applicable to solving these problems is a device that heats photographic processing waste liquid to evaporate water to dryness or solidify it, as disclosed in Japanese Utility Model Application Publication No. 60-70841. .

In addition, the present inventors also applied for evaporative concentration or solidification technology of photographic processing waste liquid [1O-2590 old issue to 259010,
Same [i! -1:12098, same fil-165099
No. 6l-1fi5]0[No.1, etc.

By the way, in the processing of color photosensitive materials.

Automatic processors are available for negative color film (to develop film that has already been photographed) and for negative color vapor (
2) In the conventional processing of photographic processing waste liquid, each waste liquid is discharged separately. Currently, waste liquids are stored in waste liquid tanks and collected by external waste liquid processing facilities or companies. Under these circumstances, the inventors of the present invention attempted to treat waste liquid using an evaporation treatment device installed in or near an automatic processor, and in particular, attempted to treat waste liquid with an evaporation treatment device installed in or near an automatic processor, in particular, to make the entire system more compact and to facilitate processing. We attempted to develop a technology to uniformly treat waste liquid generated from automatic processors.

[14] The present invention was created as part of the above research,
The main object of the present invention is to clarify a method for evaporating photographic processing waste liquid that associates and integrally processes the waste liquid generated from the photographic processing of negative color film and the photographic processing of negative color paper.

[Means for Solving the Problems] The above-mentioned object of the present invention is to provide a common waste liquid evaporation processing device that handles waste liquid generated from photographic processing of negative color film and waste liquid generated from photographic processing of negative color paper, which is disposed in or near an automatic processor. This is achieved by an evaporation treatment method for photographic processing waste liquid, which is characterized in that the photographic processing waste liquid is evaporated.

Embodiments of the present invention include (1) an automatic processor for photographically processing negative color film and an automatic processor for photographically processing negative color paper; (2) an automatic processor for photographically processing negative color film; The machine and an automatic developing machine that performs photographic processing of negative color paper are integrated.

(3) An automatic developing machine for negative color film and an automatic developing machine for negative color paper are configured separately, and the automatic developing machine for negative color film is The photographic processing waste liquid generated from the developing machine and the automatic developing machine for negative color paper is supplied and evaporated.

A preferred embodiment of the present invention is to heat and evaporate a waste liquid containing silver complex ions and a waste liquid not containing silver complex ions without distinguishing between them. For this reason, one buffer tank CI stores the waste liquid generated from one automatic processor Al (see Example 1 below), and the other buffer tank C2 stores the waste liquid generated from the other automatic processor A2 (see Example below for the reference number). It is preferable to store the generated waste liquid, but the present invention is not limited to this.
Waste liquids containing substantially silver complex ions resulting from A2, such as bleach-fix (BF) liquids and water-washing alternative stabilization treatments (sb
) in the other buffer tank C1 or C2.
Alternatively, a photographic processing waste solution 1 containing substantially no silver complex ions, such as a color developing (CD) solution, may be stored, and the two may be mixed and evaporated.

According to the method of mixing and evaporating waste liquid containing silver complex ions and waste liquid not containing silver complex ions without distinguishing them,
The present inventors have found that not only is there a new advantage that only one tank is required to store the waste liquid, but it is also effective in preventing the generation of bad odors during evaporation treatment. That is, the silver complex ion-containing waste liquid is a fixer, a bleach-fixer, and a stabilizer, and since it is acidic and contains a high concentration of ammonium thiosulfate, it releases H2S, SOx, and NHs during the evaporation process.
Although it generates a significant amount of gas, the waste solution that does not contain silver complex ions is a color developing solution that does not contain thiosulfates and is alkaline, so if the amphoteric solution is mixed and evaporated, the p.
The inventors of the present invention have discovered the surprising effect that it becomes l+ neutral, which makes it possible to significantly suppress the generation of bad or foreign odors, which is a significant advantage in designing evaporation treatment equipment.

[Example] The details of the present invention will be explained below with reference to the accompanying drawings.

7-11s@l- It is shown in Fig. 1, and includes one or more automatic developing machines for negative color film (hereinafter simply referred to as automatic developing machine A1), and one or more automatic developing machines for negative color vapor. A shared photographic processing waste liquid processing device B is prepared near the automatic processing machine (hereinafter simply referred to as automatic processing machine A2), and
This is to treat photographic processing waste liquid generated from l-A2.

The photographic processing waste liquid overflowing from the processing tank of JIgen aAI-A2 is preferably stored in a buffer tank Cl-
It is collected in C2 and supplied to photographic processing waste liquid processing apparatus B for processing.

When the photographic processing waste liquid is supplied to the photographic processing waste liquid processing apparatus B, a controlled amount of photographic processing waste liquid is supplied continuously or intermittently by detecting the processing progress of the photographic processing waste liquid in the photographic processing waste liquid processing apparatus ff1B. Supplied. In this case, it is preferable that the amount of waste liquid stored in the buffer tank Cl-C2 is also detected so that more of the waste liquid in the tank that is nearer to full is processed.

-
) The waste liquids of the automatic processors A1 and A2 are treated in the same manner as in the first embodiment using the photographic processing waste liquid processing device B built into the camera.

Regarding the configuration of incorporating the photographic processing waste liquid processing device fiB into the interior of the automatic processing machine Al-A2, what is described in the specification and drawings of the patent application (1) filed on the same date is applied.

-X son and- This is shown in FIG. 3, and in this embodiment, buffer tanks c1 and C2 for purifying waste liquid containing substantially i-complex ions are provided in automatic processors A1 and A2, respectively; Buffer tank c3 that stores waste liquid that does not substantially contain silver complex ions
・Prepare C4 and process it using photographic processing waste liquid processing equipment B.
The treatment is performed by mixing 1 with C2 or C4, or by mixing C3 with 02 or C4.

- Cliff A knee is shown in FIG. 4, and this embodiment is a combination of Example 2 and Example 3.
Using the photographic processing waste liquid processing device B built in the inside of A2), the waste liquid generated from the automatic processing machine Al-A2 that substantially contains [complex ions] and the waste liquid that does not substantially contain silver complex ions are separated. are stored in buffer tanks CI and C2 and buffer tanks C3 and C4, respectively, and processed in the same manner as in Example 3 above.

-
Photographic processing waste liquid processing equipment B1 and B2 are installed near each of A2.
The waste liquid stored in the buffer tanks c1 and C2 is transferred to the photographic processing waste liquid processing equipment Bl or B2.
Photographic processing waste liquid processing equipment F! It is supplied to IBL or B2 for processing.

In this embodiment, the buffer tank CI is
The buffer tank C2 is for storing the waste liquid generated from the automatic processing machine A1.2. - It stores the waste liquid generated from A2, and includes an embodiment in which the waste liquid is processed by the photographic processing waste liquid processing apparatuses B1 and 82.

One-dog machine [shown in Figure 6, and the one in this embodiment
Inside each of B1 and A2, there is a photographic processing waste liquid processing device B1-
BZ is prepared, and buffer tanks C1 and C2 are used to store waste liquids that substantially contain silver complex ions, and buffer tanks C are used to store waste liquids that do not substantially contain silver complex ions.
3. Prepare C4 and check the processing progress of the photographic processing waste liquid processing device Bl or B2, or the buffer tank 01~
The waste liquid is controlled according to the amount of waste liquid stored in C4 and then supplied to the photographic processing waste liquid processing apparatus B1 or B2 for processing.

In this embodiment, buffer tanks C1-C2 are
The buffer tanks C3 and C4 are used to store the waste liquid generated from fiAl-A2 that substantially contains silver complex ions, and the buffer tanks C3 and C4 are used to store the waste liquid that does not substantially contain silver complex ions generated from the fiAl-A2. , includes an embodiment in which each of the photographic processing waste liquid processing apparatus Bl and 82 mixes and processes a waste liquid containing substantially silver complex ions and a waste liquid containing substantially no silver complex ions.

One dog 5521 processors A1 and A2 are not separate machines, but are 4Ii in the same frame, that is, the photographic processing of negative color paper and the photographic processing of negative color paper are carried out in the same tank. In some cases, color development is carried out in separate tanks, and processes after bleach-fixing are carried out in the same cypress. In a structurally integrated device, waste liquid generated by photographic processing of negative color film and negative color paper is evaporated by a processing method selected from Examples 1 to 6 described above.

Note that the above-mentioned integrated automatic developing machine includes, for example,
Patent Application No. 58-238578, 58-2:18579
Examples include those listed in the No.

Although the embodiment of the present invention has been mainly described above with respect to the case where a buffer tank is provided, the tank may be omitted and the waste liquid may be directly introduced into the waste liquid treatment equipment.

Next, an example of the waste liquid treatment device disposed in the automatic developing machine as described above will be explained with reference to FIG. 7.

The specific structure of the waste liquid processing bag is disclosed in Japanese Patent Application Nos. 60-259001 to 259010, 61-1:12098, 61-165099, and 61-165100 filed by the applicant. The present invention is described in the specifications and drawings of et al., and the configurations of these waste liquid treatment devices may be appropriately selected and utilized. Since the present invention is intended to solve the problem of installation space for a waste liquid treatment apparatus that satisfies the demand for miniaturization, the scope is not limited by the specific configuration of the waste liquid treatment apparatus itself.

Furthermore, regarding automatic processors or photographic processing waste liquids, there are no factors that limit the scope of the present invention in terms of their model, processing tank configuration, processing capacity, processing liquid composition, etc.; Therefore, specific examples of automatic processors and photographic processing solutions can be found in, for example, JP-A-58-14834 and JP-A-58-34.
No. 448, No. 57-13214, No. 58-186: I
I, No. 60-263941, No. 61-2152, and Japanese Patent Application No. 61-272:16, etc. will only be pointed out, and the description thereof will be omitted here.

There are two methods: one is to directly supply the waste liquid that overflows from the waste liquid processing tank to the waste liquid treatment device, and the other is to temporarily store the overflowing waste liquid in a waste liquid tank and then supply it again to the waste liquid treatment AM. The waste liquid is supplied by mechanical force such as a pump or by natural falling.

The waste liquid may be supplied to the waste liquid treatment equipment separately for each treatment liquid or divided into two or more waste liquids, and mixed and treated after supply, or it may be mixed in advance and treated. good.

In addition, before supplying the waste liquid to be treated to the waste liquid treatment equipment, a heat exchange means is arranged to collect the thermal energy possessed by the waste liquid, or a part of the thermal energy of the treatment equipment is used automatically. It may also be preheated.

1 Moxibustion 2 Meng 1 Heat the input waste liquid and evaporate all or part of it to concentrate or solidify the waste liquid and reduce the amount of waste liquid to be disposed of, or solidify it as sludge and dispose of it. There is a device for storing the input waste liquid or treated waste liquid, a means for heating the waste liquid, a container part for storing the waste liquid, a means for heating the waste liquid,
Control means for temperature and pressure, deodorization means, etc. are included.

1 In this specification, concentration means preferably reducing the volume of waste liquid to one-fourth or less of the volume of the body when it comes out of the photographic processing tank, more preferably one-fifth or less, and is an optimal method. The goal is to reduce it to one-tenth or less.

Heating methods include gas combustion, electric heaters, nichrome wire heaters with built-in stone tubes, ceramic heaters, etc.
It is also possible to employ a dielectric heating method such as microwave irradiation, or a combination of these methods may be used.

As for the heating method, in addition to the method of continuously heating the waste liquid stored in a heating pot using a single or multiple heat sources, for example, the method of heating the photographic processing waste liquid stored in the evaporation processing chamber using microwave The temperature is raised to the boiling point or close to the boiling point by a first heat source such as irradiation, and then heated (from inside or outside the inner pot) with at least enough energy to maintain that temperature by a second heat source such as an electric heater. method, a heating element such as an overheated metal plate,
A method is used in which photographic processing waste liquid, whose temperature has been raised in advance to a boiling point or close to the boiling point, is dropped or dropped (including spraying) to evaporate.

Alternatively, it can be used in combination with the heating method described in the above-mentioned prior application, that is, a pumping heating method using an endless belt,
In one-type drum heaters, etc., the photographic processing waste liquid stored in the processing chamber is first raised to the boiling point or close to the boiling point by a first heat source, or the temperature is raised to the boiling point or close to the boiling point in advance. A method may also be used in which the photographic processing waste liquid is supplied to an evaporation chamber and then gradually evaporated by hot air or conventional heating means.

Furthermore, the photographic processing waste liquid, whose temperature has been raised to the boiling point or close to the boiling point in advance, is sprayed into the processing chamber in the form of a mist, and then a conventional heating means is activated or heated air is blown into the processing chamber to evaporate and concentrate it. There may be something that allows you to do so.

In addition, the 11i atomizing type is preferable because it can convert the photographic processing waste liquid into a heated swirling air stream, such as spray drying.
A22 can be used.

The concept of spraying includes photographic processing waste liquid dropped in liquid form into a processing chamber and turned into a mist by applying it to a rotating plate or the like.

In cases where the heating means comes into direct contact with photographic processing waste liquid,
In order to prevent thermal efficiency from decreasing due to 171 M of photographic processing waste liquid on the surface, it is preferable to form a protective film layer of, for example, fluororesin (eg, Teflon).

It is also preferable to create a reduced pressure atmosphere in the evaporation treatment chamber to lower the boiling point and promote water evaporation.

Condensing means for condensing the steam generated by heating the waste liquid may be one using wood or other refrigerant, one using air cooling, one using collision, or the like. It is also preferable to irradiate ultraviolet rays or supply ozone before, after, or during the coagulation process.

■ The liquid components condensed by the above condensation means are neutralized with chemicals,
This is a means of secondary treatment using activated carbon, reverse osmosis membrane, ultraviolet irradiation, oxidizing agent, etc. to further remove bad odors and harmful components.

The cleansed harmless liquid (distilled water) can be discharged into sewage, etc., or it can be reused as dissolving water for photographic processing solutions (including water-washing substitute stabilizing solutions) and their replenishers in automatic processing machines, or as water. .

Gas adsorption, gas neutralization Hydrogen sulfide, sulfur oxides, or ammonia gas (1I2s, SO2, N11
Harmful gases such as 1) are separated and recovered using various desulfurization and adsorption techniques such as zeolite adsorbents and activated carbon, or neutralized using a water filter using an alkaline aqueous solution or an acidic aqueous solution, or with chemicals.

Gas adsorption is performed on gaseous components that are not condensed by the above-mentioned condensation means and/or on malodorous or harmful components that may be generated before or after the tracing process.

The adsorption means is also used to remove harmful or sulfur-smelling components that may be generated when the concentrated waste liquid is discharged, which will be described later.

The gas from which foul odors and harmful components have been removed is released into the air.

(Concentrated liquid or sludge that has accumulated in the evaporation processing chamber due to one or several waste liquid supply and evaporation concentration processes can be prepared in each processing container or in the processing container by opening the evaporation processing chamber.) Should I use the waste liquid bag made of nylon etc. to take it out?

Alternatively, the liquid is allowed to fall naturally from the bottom of the processing chamber while being regulated by opening and closing a solenoid valve or manual condenser, and is stored in a separately prepared waste liquid container. Instead of gravity, the liquid may be removed using a pump or, if the viscosity of the concentrated liquid is high, a screw conveyor or the like.

[Experimental Example] The following experimental example was conducted using the photographic processing waste liquid shown below.

(Negative Film Processing) After exposing SII-V100 film (manufactured by Konishiroku Photo Industry Co., Ltd.), the negative film was continuously processed using the following processing steps and processing liquid.

Processing process Processing temperature Processing time Color development 38°C 3 minutes 15 seconds type White
Fixed at 38℃ for 3 minutes and 15 seconds
38℃ 3 minutes 15 seconds 1st stable 1st
Tank 32°C to 38°C 1 minute 1st stable 2nd I! 32
℃~38℃ 1 minute second stability 38℃1 differentiation D! 45℃～65℃ [Color developer] Potassium carbonate 30g Sodium bicarbonate 2.5g Potassium sulfite
5g 1-Hi1ζoxyethylidene-1.1-diphosphonic acid (60%) 11 g Sodium bromide 1.3g Potassium iodide 2mg Hydroxylamine sulfate 2.5g Sodium chloride
0.6g 4-Amino-3-methyl-N-ethyl-N=(β-hydroxylethyl) Aniline sulfate 4.8g Potassium hydroxide 1.2g Add water to make 1M, use potassium hydroxide or 20% sulfuric acid pH 10,
06 to 7A'! ! ! do.

[Color developer replenisher] Potassium carbonate 40g Sodium bicarbonate 3g Potassium sulfite
7g sodium bromide
0.9g 1-hydroxyethylidene-1,1-diphosphonic acid (60%) 1.2g hydroxylamine sulfate 3.1g 4-amino-3
-Methyl-N-ethyl-N-(β-hydroxylethyl) Aniline sulfur 1! ! 6,0
g Potassium hydroxide Add 2 g of water, bring to a boil once, and adjust the pH to 10.12 using potassium hydroxide or 20% sulfuric acid.

[Bleach solution] Iron ammonium ethylenediaminetetraacetate 160g Disodium ethylenecyaminetetraacetate 10g Ammonium bromide 150g Glacial acetic acid
Add 10 ml of water to make a single solution, and adjust the pH to 5.8 using aqueous ammonia or glacial acetic acid.

[Bleach replenisher] Iron ammonium ethylenediaminetetraacetate 170g Disodium ethylenediaminetetraacetate 12g Ammonium bromide 178g Ice #acid
Add 211 water to make 1M, and make ammonia water or water resistant.

Adjust the pH to 5.6 using acid.

[Fixer J Ammonium thioVtate 150g Anonymous sodium sulfite 12g Sodium metabisulfite 2.5g Disodium ethylenediaminetetraacetate 0.5g Sodium carbonate 10g Add water to make 11, and use aqueous ammonia or glacial acetic acid to make pll 7 .0
Adjust to.

[Fixer replenisher] Ammonium thiosulfate 300g Anhydrous sodium bisulfite 15g Sodium metabisulfite 3g Ethylenediaminetetraacetic acid disodium 0.8Kj Sodium pentate 14g Add water and 1!
pH 7.5 using aqueous ammonia or glacial acetic acid.
7A! ! ! do.

[First stable solution and first stable replenisher] 5-chloro-2-methyl-4-isothiazolin-3-one 0.02g 2-chloro-4-isothiazolin-3-one 0.02
g ethylene glycol 1.0 g water
n, and adjust pll to 7.0 with 20% sulfuric acid.

[Second Stable Liquid and Second Stable Replenisher] Formalin (37% aqueous solution) 2-Bunconidax (manufactured by Konishiroku Photo Industries Co., Ltd.) 5 Add Maromi water to make one layer.

The color developer replenisher was added to the color developer bath at an amount of 13.5 liters per 100 c of color negative film, and the bleach replenisher was
Replenish the bleach bath with 100 crrf of color negative film and 100 crrf of color negative film.
The fixing bath is replenished with 8 ml per 0 crn' of color negative film, and the first stabilizing replenisher is added at 8 ml per 100 crn' of color negative film.
jL was replenished into the m1 stabilizing bath, and the second stable replenisher was poured into the second stabilizing bath at a rate of 1,501 g per 100 C of color negative film.

(Paper Processing) Next, continuous processing was performed on Sakura Color SR Vapor (manufactured by Konishiroku Photo Industry Co., Ltd.) using the first processing step after printing and the processing solution.

Standard processing step (1) Color development 38°C 3 minutes 30 seconds (2)
RW white fixation M 38°C 1 minute 30 seconds (3) Stabilization treatment 25°C to 35°C 3 minutes (4) Drying 7
5°C to 100°C for about 2 minutes Processing liquid composition [Color developing tank liquid] Benzyl alcohol 15Il + standing ethylene glycol 15m Potassium sulfite 2.0g Potassium bromide 1.3g Sodium chloride
0.2g potassium carbonate
24. f1g3-Methyl-4-amino-N-ethyl-N~(β-methanesulfonamidoethyl) Aniline sulfate ゛4. Sg Fluorescent brightener (4,4'-diaminostilbenzsulfonic acid derivative) (trade name Keikol PK-Conc (manufactured by Shin Nisso Kako Co., Ltd.)>> 1.0g hydroxylamine sulfate 111 3.0g 1-hydroxyethylidene-1, 1- Niphosphon m -0.4g Hydroxyethyliminodiacetic acid 5.Og Magnesium chloride.
6 water [0,7 g 1,2-hydroxybenzene-3,5-disulfonic acid-
Add 0.2g of disodium salt to make one sentence,
Adjust the pH to 10.20 using potassium hydroxide and sulfuric acid.

[Color developer replenisher] Benzyl alcohol 20m ethylene glycol 20@potassium sulfite 3.0g potassium carbonate
30.0g hydroxylamine sulfate 4.0g coco-thi-4-amino-N-
Ethyl-N-(β-methanesulfonamidoethyl) Aniline sulfate J! ! 5,0
g Fluorescent brightener (4,4'-diaminostilbenzsulfonic acid derivative) (trade name Keikol PK-Conc (manufactured by Shinnichi Rige Kako Co., Ltd.)) 2.5g1-Hydroxyethylidene-1,1-niphosphonic acid 0. 5g Hydroxyethyliminodiacetic acid 5.0g Magnesium chloride hexahydrate 1.2-Hydroxybenzene-3,5-disulfonic acid disodium salt
Add 0.3g of water to make it 1M and dilute with potassium hydroxide.
lllo, 70.

[l'A self-fixing tank liquid] Ethylenecyaminetetraacetic acid ferric ammonium dihydrate 60. Og ethylenediaminetetraacetic acid M 3 , OF.

Ammonium thiosulfate (70% solution) 100.0I
Iu F & ammonium acid (40% solution) 27
．． Add 5ml of water to bring the total volume to a boil, and adjust the pH to 7.1 with potassium carbonate or glacial acetic acid.

[Bleach-fixing replenisher A] Ferric ammonium ethylenediaminetetraacetate dihydrate 260.0g Potassium carbonate 42.0g Add water to bring the total amount to 142.

The pH of this solution is 6.7±0.1.

[Bleach-fix replenisher B] Ammonium thiosulfate (70% solution) 500. (Peng JL Ammonium sulfite (40% solution) 250.
0m ethylenediaminetetraacetic acid 17.0
g Glacial acetic acid 85.0mM
Add water to bring the total volume to IJI.

The p)l of this solution is 5.3±0. ].

[Water washing alternative stable tank fluid and replenisher] Ethylene glycol 1.0g 1-hydroxyethylidene-1,l-niphosphonic acid (50% aqueous solution) 1.0g ammonia water (ammonium hydroxide 25% aqueous solution) 2.0g water and adjust the pH to 7.0 with sulfuric acid.

Fill an automatic processor with the above color developing tank solution, bleach-fixing tank solution and stabilizing tank solution, and add the above color developing replenisher and bleach-fixing replenisher A every 3 minutes while processing the Sakura Color SR vapor sample. A running test was conducted while replenishing B and stable replenisher through a metering cup. The replenishment amount is 19041 per rn' color vapor to the color development tank, and 19041 to the bleach-fixing tank! Bleach-fixing replenisher A and B are each SOm as darkness, and the amount of replenishment to the stabilization tank is 25 hours of washing alternative stabilizing replenisher!
I added L. The stabilization tanks of the automatic processor are the first to third tanks in the direction of sample flow, and the final tank is replenished and the overflow liquid from the final tank is allowed to flow into the previous tank. Furthermore, a multi-tank countercurrent system was adopted in which this overflow liquid also flows into the preceding tank.

Continuous processing was carried out until the total replenishment amount of the stabilizing solution with washing bar reached three times the capacity of the stabilizing tank.

All of the photographic processing waste liquids produced by the above processing were mixed and subjected to the fifth processing.

Experimental Example 1 The photographic processing waste liquid of 5 sentences was received into the apparatus shown in Fig. 7,
Evaporation treatment was performed until the temperature reached 11. During this time, no foul odor or foreign odor was felt (4 out of 5 monitors did not feel any foreign odor).

As described above, according to the present invention, even if the waste liquid is evaporated, the flow of malodorous gas components to the gas side can be reduced.

Comparative Example 1 In Example 1 above, when evaporation treatment was performed under the same conditions for the negative color film and the mixed solution of only the bleach-fixing solution and the washing substitute stabilizer in vapor treatment, ammonia gas (t+, s, SO2, N11°, etc.) ), etc. 5 out of 5 monitors felt a strange gas odor. ).

[Effects of the Invention] According to the present invention, it is possible to arrange a waste liquid treatment device without significantly expanding the planar space of a conventional automatic processor. For automatic processors equipped with a storage tank, the pipe that guides overflow waste to the waste storage tank may be connected directly to the waste treatment equipment, or the pipe that guides the overflow waste to the waste storage tank may be connected directly to the waste treatment equipment, or the waste may be transferred from the existing or newly installed waste storage tank. By simply preparing piping to supply waste liquid to the processing equipment, there is the advantage that a waste liquid processing device can be added to a conventional automatic processing machine with almost no modification. According to the embodiment in which the waste liquid containing no silver complex ions is mixed and evaporated, it is possible to suppress the generation of bad odor or foreign odor during the evaporation treatment, and it is possible to use an automatic processor like an office machine. . The present invention has the advantage that it has a large installation space and allows users who use conventional automatic processors to add a waste liquid treatment device as an option at any time.

[Brief explanation of the drawing]

1 to 6 are schematic diagrams showing each embodiment of the present invention, and FIG.
The figure is a block diagram illustrating the waste liquid treatment device. In the figure, each symbol indicates the following. Al: Automatic processor for negative color film A2: Automatic processor for negative color vapor B, B1. B2: Photographic processing waste liquid treatment? C placement C1-C4:
Buffer tank patent applicant Roku Konishi Photo Industry Co., Ltd. Agent
Patent Attorney Shinma Sakaguchi Figure 7

Claims (2)

[Claims] (1) The waste liquid generated from the photographic processing of negative color films and the waste liquid generated from the photographic processing of negative color barbers are supplied to a common waste liquid evaporation processing device disposed within or near the automatic processor for evaporation treatment. Evaporation treatment method for photographic processing waste liquid. (2) A method for evaporating photographic processing waste liquid according to claim 1, characterized in that a waste liquid containing silver complex ions and a waste liquid not containing silver complex ions are mixed and subjected to evaporation treatment.