JPH0326386A - Device for treating photographic processing waste - Google Patents

Abstract

PURPOSE:To fix the temp. of the air passing through a vaporization medium in a main case before an air cooler by providing the second heat radiating part of a refrigerator as the air cooler on the outside of the main case and making the heat output of the first heat radiating part lower than the heat input of the cooler. CONSTITUTION:A waste tank 3 is set in the closed main case 2, the lower part of an endless belt 4 is dipped in the waste in the tank 3, the waste entrained by the rotating belt is vaporized, the circulating air having a sufficient content of vaporized water is cooled below the dew point by the cooler 8 of the refrigerator, and the condensed water is dropped into a receiver 9. The air freed of moisture is heated by the first heat radiating part 11 and an auxiliary heater 6 and sent to the belt 4 by a circulating fan 12 and a vaporization fan 5 to vaporize the water in the waste depositing on the belt. The temp. of the vaporization part is detected by a temp. sensor 25, the auxiliary heater 6 is adjusted by a controller 28, and the temp. of the air after the vaporization medium 4 and before the cooler 8 is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a photographic processing waste liquid processing apparatus used for concentrating photographic processing waste liquid.

[Conventional technology]

The waste liquid produced by photographic processing cannot be disposed of in rivers or the like to prevent pollution, so the actual situation is that the waste liquid produced by photographic processing must be disposed of by specialized companies. Most of the photographic processing waste liquid is water, so if the photographic processing waste liquid is concentrated or solidified, the storage amount can be kept in a very small amount, which simplifies storage space and subsequent processing, making it easier to outsource to specialized companies. Expenses will also be significantly reduced.

As an apparatus for this purpose, there is a photographic processing waste liquid processing apparatus that separates solid content contained in the photographic processing waste liquid from water.

The photographic processing waste liquid processing device has a main body case equipped with an intake port and an exhaust port, and includes a storage means for storing the waste liquid, a means for heating and evaporating the waste liquid, a means for supplying the waste liquid to the evaporation means, and a means for condensing the above liquid. and/or means for sending air to the heating evaporation means through the heat exchange means. (Unexamined Japanese Patent Publication No. 63-19655, Unexamined Japanese Patent Publication No. 63-1077
(Refer to each publication No. 95) However, when the conventional equipment heats and evaporates the waste liquid, the
By increasing the waste liquid temperature to 0 to 90°C to promote evaporation, ammonium thiosulfate and sulfite, which are commonly used as fixing solutions and bleach-fixing solutions for photographic processing solutions, decompose due to the high temperature, producing sulfur dioxide gas and hydrogen sulfide. , harmful or extremely foul-smelling gases such as ammonia gas are generated. and,
If these gases are released outside the device from the exhaust port on the main body case, they will contaminate the atmosphere around the device. It requires secondary processing equipment such as a mechanism, a deodorizer supply means, a solidifying agent supply means, etc., and the entire apparatus becomes a very complex and large apparatus, and its operation is complicated.

Furthermore, in order to improve evaporation efficiency, a large evaporation means is provided, which increases the size of the device and increases power consumption.

Furthermore, there is a problem in that the temperature and humidity inside the main body change, and the processing quality and processing capacity of the collected water, such as pH and COD, change.

By solving the above problems, the waste liquid is attached to the evaporation medium partially immersed in the photographic processing waste liquid inside the sealed main body case as a compact and highly efficient photographic processing waste liquid treatment device that does not require a secondary processing device. Alternatively, a photographic processing waste liquid processing apparatus may be considered, which includes an evaporation section that impregnates the waste liquid and evaporates it by exposing it to air, and an air cooler that condenses the evaporated water.

In this case, thermal economy can be achieved by using the cooler and heat radiator of the refrigeration system as an air cooler that condenses moisture in the air and an air heater that heats the air thereafter.

[Problem to be solved by the invention]

Although it is advantageous from a thermal economy point of view when the cooler and heat radiator of a refrigeration system are used together as air coolers and air heaters, in reality the amount of heat radiated by the heat radiator is always greater than the amount of heat absorbed by the cooler. As a result, the temperature of the air tends to rise gradually, which changes the waste liquid processing capacity and makes the processing quality inconsistent.Also, the high temperature inside the main body case causes corrosion due to the waste liquid inside the device. There is.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a photographic processing waste liquid processing apparatus that can maintain a constant temperature of the air after the evaporation medium passes through the main body case and before passing through the air cooler.

[Means and effects for solving the problems] The above object of the present invention is to attach or impregnate a promotional medium partially immersed in photographic processing waste liquid in a substantially sealed main body case, and to pump up the waste liquid. A photographic processing waste liquid processing apparatus includes an evaporator that evaporates by exposing to circulating air, an air cooler that condenses evaporated moisture, and an air heater for the circulating air, the air cooler being used for cooling a refrigeration system. The air heater is composed of a first heat radiating part and an auxiliary heater of a heat radiating part divided into two parts of the refrigeration equipment, and the second heat radiating part of the refrigeration equipment is provided outside the main body case, and the amount of heat radiated from the first heat radiating part is This can be achieved by a photographic processing waste liquid treatment device in which the amount of heat absorbed is less than the amount of heat absorbed by the cooler.

In other words, by setting the sum of the amount of heat radiated by the first heat radiating section, which is the circulating air heating unit, and the amount of heating by the auxiliary heater, so that the amount of heat absorbed by the air cooler and the heat balance are eliminated, the amount of heat released after the evaporative medium passes through The temperature of the air before passing through the air cooler can be maintained constant.

The refrigeration system according to the present invention has a cooler, a heat radiation section, a compressor, and an expansion valve, and has a structure in which a refrigerant is circulated through these.

Since the air temperature in the evaporator in the photographic processing waste liquid processing apparatus can be maintained at the set temperature, the photographic processing waste liquid does not decompose. Therefore, water in the waste liquid can be evaporated and condensed without generating harmful or malodorous gases.

In the present invention, in order to condense moisture in the air, it is necessary to lower the temperature of the air after passing through the evaporating medium to below the dew point temperature, so a cooler of a refrigeration system is used as the air cooler (condenser). In the two-divided heat radiating section of the refrigeration system, the first heat radiating section is provided inside the main body case and heats the air from which moisture has been removed in the air cooler. Further, the second heat radiating section is provided outside the main body case, and radiates heat by air cooling or water cooling.

The air in the main body case after passing through the evaporation medium and before passing through the air cooler is heated to 15 to 30°C, preferably 20 to 25°C, by heat radiation from the first heat radiation part and the auxiliary heater at the start of the process. Thereafter, the air that has been cooled and moisture removed in the condensing section is heated by heat radiation from the first heat radiation section and the auxiliary heater, and returns to its original temperature.

When heating circulating air that has been cooled by a cooler in a refrigeration system and has had its moisture condensed to a low temperature, by supplying an amount of heat equivalent to the amount of heat absorbed by the cooler,
The air returns to its original temperature.

Generally, in a refrigeration system, the amount of heat radiated by the heat radiating section is larger than the amount of heat absorbed by the cooler, and the amount of heat radiated is about 1.2 times the amount of heat absorbed.

Therefore, in order to keep the temperature of the circulating air constant, the heat radiating section of the refrigeration system is divided into two parts, and one heat radiating section is installed outside the main body case, so that part of the heat radiated by the refrigeration system is radiated outside the main body case. do. Typically, the relationship between the amount of heat radiation and the amount of heat absorption is, when the amount of heat absorption is 1.0, the first heat radiation part 1.0 to 0.6,
The second heat radiation part is 0.2 to 0.6.

If the air is not sufficiently heated by the first heat radiation section installed inside the main body case, the air is heated by an auxiliary heater such as an electric heater or a steam heater to reduce the temperature of the air after passing through the evaporative medium and before passing through the air cooler. Adjust.

The temperature of the air in the photographic processing waste liquid treatment device after passing through the evaporation medium and before passing through the air cooler is 15 to 30°C, preferably 20 to 20°C.
By maintaining the temperature at a low temperature of 5℃, ammonium thiosulfate and sulfite in the photographic processing waste liquid do not decompose due to high temperatures, and harmful or extremely malodorous gases such as sulfur dioxide gas, hydrogen sulfide, and ammonia gas are generated. without any
Water in waste liquid can be evaporated and condensed. As disclosed in Japanese Patent Application No. 63-252143, the evaporation of water in the waste liquid is promoted by adjusting the air temperature within the above range. Note that by adjusting the air temperature in the evaporation section within the above temperature range, the water in the waste liquid can be evaporated stably.

Furthermore, the temperature of the entire interior of the main body case can be adjusted using an auxiliary heater.

The evaporation medium in the present invention is preferably a cloth-like endless belt that rotates and has air permeability, and its material includes nonflammable inorganic fibers such as carbon and glass fibers, aramid fibers, and the like. Further, in order to attach or impregnate a large amount of waste liquid, a woven fabric having a mesh structure or a three-dimensional structure is preferable. These are Japanese Patent Application Laid-open No. 156501/1983 and Japanese Patent Application No. 1983-156501 filed by the present applicant.
It is disclosed in the specification of No. 204807 and the like.

In the present invention, it is preferable to circulate the air within the apparatus using a fan, and in this case, the direction of circulation may be either parallel or perpendicular to the evaporation surface of the evaporation medium, preferably perpendicular.

In addition, in the present invention, a substantially sealed main body case means that the air inside the main body case, and in some cases malodorous It means something that is separated from the outside world to the extent that air does not leak outside.

The condensed water obtained by this photographic processing waste liquid treatment apparatus can be subjected to simple treatment (for example, pH adjustment) if necessary, and then drained to the sewer.

Further, the concentrated photographic processing waste liquid obtained by the present photographic processing waste liquid processing apparatus can be recovered and heated and incinerated. When the concentrated waste liquid is removed from the waste liquid tank, it can be easily removed by opening a stopper provided at the bottom of the waste liquid tank. When extracting the concentrated waste liquid, a solidifying agent can be used to solidify the concentrated waste liquid in order to improve transportability and ease of handling after extraction. The solidifying agents used are described in detail in Japanese Patent Application No. 1-96435, No. 1-96436, and Japanese Patent Application Laid-open No. 61-231548.

Further, the photographic processing waste liquid in the present invention may be any waste liquid after performing photographic processing such as development (color, black and white), bleaching, bleach-fixing, stabilization, etc.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to this example.

FIG. 1 is a schematic side view of an embodiment of the photographic processing waste liquid treatment apparatus of the present invention.

A waste liquid tank 3 for storing photographic processing waste liquid is installed in a sealed main body case 2 of a photographic processing waste liquid processing apparatus 1 so as to be removable from the main body case. The waste liquid tank 3 can be replenished with waste liquid from outside the main body case 2 using a pipe 31 and a valve 32. The level of waste liquid in the waste liquid tank 3 can be controlled separately (not shown).

The endless belt 4 as an evaporation medium has a mesh structure made of glass fiber and rotates with its evaporation surface perpendicular to the circulating air.

The lower part of the endless belt 4 is immersed in the waste liquid in the waste liquid tank 3, and the waste liquid is pumped up by rotation.

In this embodiment, two endless belts 4 are provided and driven independently, but by driving a plurality of endless belts 4 in a superimposed manner via a spacer, the endless belts 4 can be driven without changing the evaporation efficiency. The installation area can be reduced.

The waste liquid pumped up by the endless belt 4 evaporates, and the evaporated moisture is contained in the air.

The refrigeration device included in this device includes a cooler 8, a first heat radiation section 11
, a second heat radiating section 72, a compressor 71, and an expansion valve 73, and has a structure in which refrigerant is circulated through these.

The circulating air containing sufficient evaporated moisture is cooled to below the dew point by a cooler 8 (condenser) of the refrigeration system, and the condensed moisture falls into a receiver 9. The heat dissipation section of the refrigeration system is divided into two parts: a first heat dissipation section (air heater > 11) provided downstream of the cooler 8, and a second heat dissipation section provided outside the photographic processing waste liquid processing apparatus that dissipates heat to the outside air. (Air cooling section) 72.

The amount of heat radiated by the first heat radiator 11 is set to a value close to the amount of heat absorbed by the cooler 8, and excess heat is radiated by the second heat radiator 72.

Next to the first heat dissipation part 11 is a casing fan 12, which cooperates with the evaporation fan 5 to circulate air.

The condensed water collected in the receiver 9 is taken out of the main body case 2 of the device and disposed of or reused.

The circulating air that has been cooled, moisture removed, and heated by the first heat radiating parts 11 and 11 12 and the auxiliary heater 6 is sent to the endless belt 4 by the circulation fan l2 and the evaporation fan 5, and then passes through the endless belt 4. The moisture in the waste liquid adhering to the endless belt 4 is evaporated.

A temperature sensor 25 is provided above the waste liquid tank 3 to detect the temperature of the air in the evaporation section, and this temperature sensor 25 is connected to a controller . The temperature sensor 25 is preferably provided immediately before the cooler 8 on the downstream side of the evaporation section.

The temperature sensor 25 detects the temperature of the air after passing through the endless belt and before passing through the cooler, and the controller 28 controls the operation of the auxiliary heater 6 so that the temperature near the temperature sensor 25 is 15 to 30°C. The temperature of the evaporation section is detected by the temperature sensor 25, and the controller 28 adjusts the auxiliary heater 6 to maintain the temperature of the air constant after passing through the evaporation medium and before passing through the cooler, thereby reducing the amount of evaporation per unit time. ,
The condensing capacity can be kept constant, and the processing capacity can also be adjusted.

Since the compressor 71 and the second heat dissipation part 72 of the refrigeration device 7 are provided outside the main body case 2, when operating in a state where outside air is not drawn into the closed main body case 2 like this device, evaporation is prevented. The residual heat of the motor and air cooling section does not affect the heat balance for heating and cooling the air used.

〔Effect of the invention〕

According to the present invention, the condensing section is a cooler of the refrigeration device, the air heater is the first heat radiating section of the two-divided heat radiating section of the refrigeration device, and the second heat radiating section is provided outside the photographic processing waste liquid processing device. Therefore, by making the amount of heat radiated by the first heat radiating part smaller than the amount of heat absorbed by the cooler, the temperature of the air before passing through the air cooler after passing through the evaporation medium in the photographic processing waste liquid processing apparatus does not become high.
Furthermore, the set temperature can be maintained by using an auxiliary heater.

In addition, by setting the amount of heat radiated by the first heat radiating section to be less than the amount of heat absorbed by the cooling section, and by providing another auxiliary heater that heats the air from which moisture has been removed, it is possible to reduce the The air temperature is 15-30℃, preferably 20-25℃.
It can be maintained at a constant value of 13 14 within the range of °C.

Furthermore, since the air temperature in the evaporation section of the photographic processing waste liquid processing apparatus can be maintained at a low temperature of 15 to 30°C, preferably 20 to 25°C, ammonium thiosulfate and sulfite in the photographic processing waste liquid will not be decomposed at high temperatures. There is no generation of harmful or extremely malodorous gases such as sulfur dioxide gas, hydrogen sulfide gas, or ammonia gas. Therefore, the secondary processing device for processing the gas is also simplified, making it possible to downsize the photographic processing waste liquid processing device. Further, the photographic processing waste liquid does not corrode the apparatus due to high temperatures, and maintenance of the apparatus becomes easier.

Furthermore, by utilizing heat from the heat dissipation section of the refrigeration system, the operating cost of the system could be reduced.

Therefore, it is possible to provide a waste liquid treatment device that is compact, easy to handle, and has high processing efficiency, and it has also become possible to integrate the waste liquid treatment device with an automatic developing device or to incorporate it into the automatic developing device.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of an embodiment of the photographic processing waste liquid treatment apparatus of the present invention. ■ Photographic processing waste liquid processing equipment 2 Main body case 3 Waste liquid tank 4 Endless belt 5 Evaporation fan 6 Auxiliary heater 7 Freezer 8 Air cooler 9 Receiver 11 First heat radiation part 12 Circulation fan 25 Temperature sensor 28 Controller 3l Piping 32 Valve 72 Second heat dissipation part 15 16 Procedural amendment 1. Hagyu's J7R Heikai 1st Year Patent Application No. 160810 2. Name of the invention Photographic processing waste liquid treatment device 3. Distance between Hanyu and the person making the correction: Patent applicant name (520) Fuji Photo Film Co., Ltd. 4. Agent address: 14th floor, Toranomon Mitsui Building, 3-8-1 Kasumigaseki, Chiyoda-ku, Tokyo 100 Phone number: (581)-9601
(Provision 5. Date of amendment order: (voluntary) 6. Number of claims increased by amendment: 08. Contents of amendment The column "Detailed description of the invention" is amended as follows. (1) Specification "15-30°C, preferably 20-25°C" on page 7, lines 1-2 and page 8, lines 4-5
0 to 40°C, preferably 15 to 30°C, more preferably 20 to 25°C. (2) "Also, the photographic processing waste liquid in the present invention may be a waste liquid." in lines 12 to 15 of page 10 of the circular is corrected as follows. "Also, the atmospheric pressure inside the main body case should be lower than 76'OmmHg, preferably 1 to 700mmHg, more preferably 5
~400mmHg, more preferably 10~3QmmHg
The water may be evaporated from the waste liquid by reducing the pressure, and the evaporated water may be condensed. Further, the photographic processing waste liquid in the present invention may be any waste liquid after performing photographic processing such as development (color, black and white), bleaching, bleach-fixing, fixing, water washing, stabilization, etc. All of these treated waste liquids may be treated as a mixture, or may be treated individually. Further, the waste liquids from the washing process and the stabilizing process may be mixed, the waste liquids from the developing process, the fixing process and the bleaching process may be mixed and treated separately, or they may be mixed and processed in other combinations. The waste liquid may contain various processing liquids used in photographic processing of light-sensitive materials, and these processing liquids will be explained below. The color developing solution used for developing the photosensitive material is preferably an alkaline aqueous solution containing an aromatic primary amine color developing agent as a main component. As this color developing agent, aminophenol compounds are also useful, but p-phenylenedia ξ compounds are preferably used, typical examples of which include 3-methyl-4-anoN,N-diethylaniline, 3-Methyl-4-amino-N-ethyl-N-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfonade ξ-doethylaniline, 3-methyl-4-acuno Examples include N-ethyl-N-β-methoxyethylaniline and their sulfates, hydrochlorides, or p-toluenesulfonates. Two or more of these compounds can be used in combination depending on the purpose. The color developer may be a pll-relaxing agent such as alkali metal carbonates, borates or phosphates, bromide salts, iodide salts, penzimidazoles, penzothiazoles or mercapto compounds. It typically contains an inhibitor or antifoggant. In addition, if necessary, hydroxyluadan, diethylhydroxyluagon,
Sulfite hydrazines, phenyl carbazides, triethanolamine, catechol sulfonic acid, triethylenediamine (1,4-diazabicyclo[2,221
Various preservatives such as octane), organic solvents such as ethylene glycol and diethylene glycol, development accelerators such as benzyl alcohol, polyethylene glycol, quaternary ammonium salts, and amines, dye couplers,
Typical examples include competitive couplers, fogging agents such as sodium boron hydride, auxiliary developing agents such as 1-phenyl-3-virazolidone, viscosity-imparting agents, aminobolycarboxylic acids, adanoboriphosphonic acids, alkylphosphonic acids, and phosphonocarboxylic acids. Various chelating agents such as
Ethylenediaminetetraacetic acid, nitri-1cotriacetic acid, die? Lentriaminepentaacetic acid, cyclohexanediaminetetraacetic acid,
Hydroxyethyliminodiacetic acid, 1-hydroxyethylidene-1,1-diphosulfonic acid, nitrilo-N,N,N-trimethylenephosphonic acid, ethylenedia-N,N
, N'. Representative examples include N'-tetramethylenephosphonic acid, ethylene diamine di(O-hydroxyphenylacetic acid), and salts thereof. Further, when performing reversal processing, black and white development is usually performed and then color development is performed. This black-and-white developer contains known black-and-white developing agents such as dihydroxybenzenes such as hydroquinone, 3-virazolidones such as 1-phenyl-3-pyrazolidone, or anophenols such as N-methyl-p-alanophenol. can be used alone or in combination. The pl of these color developing solutions and black and white developing solutions is 9-12
It is common that Although the amount of replenishment of these developing solutions depends on the color photographic light-sensitive material being processed, it is generally below 3°C per square meter of light-sensitive material, and by reducing the bromide ion concentration in the replenishing solution,
It can also be less than one. When reducing the amount of replenishment, it is preferable to prevent evaporation of the liquid and air oxidation by reducing the area of contact with the air in the processing tank. Furthermore, the amount of replenishment can be reduced by using means for suppressing the accumulation of bromide ions in the developer. After color development, the photographic emulsion layer is usually bleached. The bleaching process may be performed simultaneously with the fixing process (bleach-fixing process), or may be performed separately. Furthermore, in order to speed up the processing, a bleach-fixing treatment may be performed after the bleaching treatment. Furthermore, treatment in two continuous bleach-fixing baths, fixing treatment before bleach-fixing treatment, or bleaching treatment after bleach-fixing treatment can be carried out as desired depending on the purpose. Examples of bleaching agents that can be used include compounds of polyvalent metals such as iron (■), cobalt (■), chromium (■), and copper (II), peracids, quinones, and nitro compounds. Typical bleaching agents include ferricyanide; dichromate; iron (1
) or organic complex salts of cobalt (I[), such as ethylenediaminetetraacetic acid, diethylenetriagonatepentaacetic acid, cyclohexanediaminetetraacetic acid, methylyononiacetic acid, 1,
Agonoboricarboxylic acids such as 3-diaminopropane tetraacetic acid, glycol ether diacetic acid, etc. or complex salts of citric acid, tartaric acid, malic acid, etc.; persulfates; bromates; permanate; Nitrobenzenes and the like can be used. Among these, iron(II) anopolycarboxylate complexes and persulfates, including iron(III) ethylenediaminetetraacetate complexes, are preferred from the viewpoint of rapid processing and prevention of environmental pollution. Additionally, aminopolycarboxylic acid iron(II[) complexes are particularly useful in both bleach and bleach-fix solutions. The pFI of the bleach or bleach-fix solution using these aminobocarboxylic acid iron (I [ It can also be processed. A bleach accelerator may be used in the bleaching solution, bleach-fixing solution, and their prebaths, if necessary. Specific examples of useful bleach accelerators are described in U.S. Pat. No. 3,893,858;
Research Disclosure No. 17,129 (197
Compounds having a mercapto group or a disulfide bond described in JP-A-50-140, 129, etc.
Thiazolidine derivatives described in US Pat. No. 3,706
, 561; JP-A-58-16
, 235; West German Patent No. 2,748.
Polyoxyethylene compounds described in Japanese Patent Publication No. 45-8836; bromide ions, etc. can be used. Among these, compounds having a mercapto group or a disulfide group are preferred from the viewpoint of a large promoting effect, and are particularly preferred, as described in US Pat.
The compounds described in No. 1 are preferred. Furthermore, U.S. Patent Nos. 4 and 5
Also preferred are the compounds described in No. 52,834. These bleach accelerators may be added to the light-sensitive material. These bleach accelerators are particularly effective when bleach-fixing color light-sensitive materials for photography. Examples of fixing agents include thiosulfates, thiocyanates, thioether compounds, thioureas, and large amounts of iodide salts, but thiosulfates are commonly used, with ammonium thiosulfate being the most widely used. Can be used for As the preservative after bleach-fixing, sulfites, bisulfites, sulfine salts, or carbonyl bisulfite adducts are preferred. Silver halide color photographic materials are generally subjected to water washing and/or stabilization steps after desilvering treatment. The amount of water used in the washing process depends on the characteristics of the photosensitive material (for example, depending on the materials used such as couplers), the application, the temperature of the washing water, the number of washing tanks (number of stages), the replenishment method such as countercurrent or forward flow, and various other conditions. Can be set over a wide range. Among these, the relationship between the number of washing tanks and the amount of water in the multistage countercurrent method is described in the Journal of the Society of Motion Pictures.
and Television Engineers (Journa)
l of the Society of Motion
n Picture and Television E
ngineers) Volume 64, No. 248-253 True (
It can be determined by the method described in May 1955 issue). According to the multi-stage countercurrent method described in the above-mentioned literature, the amount of water used for washing can be significantly reduced, but due to the increase in the residence time of water in the tank, bacteria will propagate and the floating matter will adhere to the photosensitive material. Problems such as this arise. As a solution to such problems in the processing of color photosensitive materials, Japanese Patent Laid-Open No. 62-288. The method for reducing calcium ions and magnesium ions described in No. 838 can be used very effectively. Also, JP-A-57-8.542
Chlorinated disinfectants such as isothiazolone compounds, cyabendazole, chlorinated sodium isocyanurate, and other henzotriazoles listed in the issue, "Chemistry of antibacterial and fungicidal agents" by Hiroshi Horiguchi, "Microbial It is also possible to use disinfectants described in "Sterilization, Disinfection, and Anti-Mildew Techniques" and "Encyclopedia of Antibacterial and Antifungal Agents" edited by the Japan Antibacterial and Antifungal Society. The pi of the washing water in the processing of the photosensitive material is 4 to 9.
and preferably 5 to 8. The washing water temperature and washing time can also be set variously depending on the characteristics of the photosensitive material, its use, etc., but generally it is 20 seconds to 10 minutes at 15 to 45°C, preferably 25 to 10 minutes.
A range of 30 seconds to 5 minutes at ~40°C is selected. 10 Furthermore, instead of washing with water, the photosensitive material can be directly processed with a stabilizing solution. In such stabilization treatment, Japanese Patent Application Laid-open Nos. 57-8, 543 and 58-14
, 834 and 60-220, 345 can all be used. Further, following the water washing treatment, a further stabilization treatment may be carried out, such as a stabilizing bath containing formalin and a surfactant, which is used as a final bath for color photosensitive materials for photography. . Various chelating agents and antifungal agents can also be added to this stabilizing bath. The overflow liquid resulting from the water washing and/or replenishment of the stabilizing liquid can also be reused in other processes such as the desilvering process. The silver halide color light-sensitive material may contain a color developing agent for the purpose of simplifying and speeding up processing. In order to incorporate the color developing agent, it is preferable to use various precursors of the color developing agent. For example, indoaniline compounds described in U.S. Pat. No. 3,342,597, U.S. Pat. No. 3,342.59
No. 9, Ship base type compounds described in Research Disclosure No. 14,850 and Research Disclosure No. 15,159, Research Disclosure No. 13
, 924, U.S. Pat. No. 3,7
Metal salt complex described in No. 19,492, JP-A-53-135
．． Examples include urethane compounds described in No. 628. The silver halide color light-sensitive material may contain various 1-phenyl-3-vilapridones, if necessary, for the purpose of promoting color development. A typical compound is disclosed in JP-A-56-64. No. 339, No. 5714.4547,
and No. 58-115,438. The compounds contained in the above-mentioned photosensitive materials are eluted from the photosensitive materials into the processing solution during processing of the photosensitive materials, and therefore these compounds are not included in the waste solution generated when such photosensitive materials are processed. ing. The various processing solutions mentioned above are used at temperatures between to'c and 50"C. Normally, the standard temperature is 33°C to 38°C, but higher temperatures may be used to accelerate the processing and shorten the processing time.
Conversely, it is possible to improve the image quality and the stability of the processing solution by lowering the temperature. In addition, West German Patent No. 2,226,770 or U.S. Patent No. 3,6
A treatment using cobalt intensification or hydrogen peroxide intensification as described in No. 74,499 may be performed. (3) 115-30'C on page 13, line 13 of the specification
J at "10 to 40°C, preferably 15 to 30°C,
More preferably, the temperature is adjusted to 20 to 25°C. (4) Lines 2 to 1 from the bottom of No. 14 of the specification and page 3 of No. 15
~4th line "15-30°C, preferably 20-25°C" is changed to "10-40°C, preferably 15-30°C,
More preferably, the temperature is adjusted to 20 to 25°C. 1 3

Claims (1)

[Claims] Inside the main body case, which is substantially sealed, there is an evaporation section that attaches or impregnates the waste liquid to an evaporation medium partially immersed in photographic processing waste liquid, pumps up the waste liquid, exposes it to circulating air, and evaporates it, and an air cooling unit that condenses the evaporated water. and an air heater for circulating air, the air cooler being a cooler for a refrigeration device, and the air heater being a first radiator of a two-part heat dissipation section of the refrigeration device. A photographic processing waste liquid processing device consisting of a heat radiation part and an auxiliary heater, in which the second heat radiation part of the refrigeration device is provided outside the main body case, and the heat radiation amount of the first heat radiation part is less than the heat absorption amount of the cooler.