JP2016059829A - Wastewater treatment apparatus of penetration liquid washing including fluorescent liquid and developer generated in penetration flaw detection inspection, and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wastewater treatment apparatus of penetration liquid washing generated in penetration flaw detection inspection, capable of creating wastewater (waste liquid) of the penetration liquid washing to clean water which can be reused, and achieving reuse (recycle) of almost whole amount of the clean water, and a method therefor.SOLUTION: The wastewater treatment apparatus of penetration liquid washing generated in penetration flaw detection inspection is configured so that: first treatment water Y1 treated in a reaction tank 3 comprising a wastewater tank 1 of penetration liquid washing and active carbon 6, is separated at an MF membrane device 8, and is introduced to an active carbon tower, then fifth treatment water Y5 having high density separated from the MF membrane device 8 is introduced to an MF concentrated water tank 15, then fourth treatment water treated at the active carbon tower is introduced to an RO membrane device via a reverse penetration membrane treatment water tank, then clean water created at the RO membrane device can be recycled and discharged, and the fifth treatment water Y5 having high density and introduced to the MF concentrated water tank 15 is introduced to a dewatering machine 23, for reducing volume of sludge.SELECTED DRAWING: Figure 1-1

Description

  The present invention relates to a drainage treatment apparatus for osmotic water washing generated in a penetrant inspection and a method thereof.

  The present invention relates to a wastewater treatment apparatus and a method for drainage of osmotic water washing (also referred to as flushing wastewater for zygro inspection) generated in penetration inspection (fluorescence penetration inspection) of aircraft materials (processed members). It is an application.

  In recent years, penetration flaw detection is a necessary means for searching for microcracks (cracks such as cracks, pinholes, and corrosion) that are invisible to the naked eye. As is well known, in this penetrant inspection, a penetrating solution (fluorescent solution) is applied and penetrates into a microcrack. In this method, the permeation solution on the surface is washed with water after a lapse of a certain time, followed by development (agent) treatment, illumination with ultraviolet rays in a dark room, and visual inspection. The present invention is a method that can be used for detecting microcracks in aircraft materials.

  The treated water containing this fluorescent solution and the developer (agent) (drainage for osmotic water washing) cannot be discharged as it is, or the amount of water used is increased, and in order to reduce costs, recycling is required. Necessary. Therefore, the simplest method is a method in which the waste water from the permeate washing is treated in an ozone treatment tank, adsorbed in an activated sludge treatment tank (biological treatment) and an activated carbon tank, and then discharged. However, the structure is not sufficient for adsorption treatment of the organic matter and is not suitable for recycling.

  As an improvement, the method shown in FIGS. 3-1, 3-2 and 4 is used. To outline this method, the drainage 001a of the osmotic water washing in the osmotic water washing drain tank (raw water tank storing the drainage of the osmotic water washing) 001 is sent to the adsorption tank 003 via the pump / pipe 002 (guided). ), The activated carbon 004a and the filter aid (bentonite liquid 004b) added in the adsorption tank 003 are used to adsorb organic substances, surfactants, fluorescent liquids, development (agents), etc. Through 005, it is sequentially fed to the reaction tank 006 to which the pack agent 006a has been added, the adjustment layer 007 to which the caustic soda 007a has been added, and the coagulation layer 008 to which the polymer flocculant 008a has been added. For example, while adjusting the pH (indicated by PH in the figure, the same applies to others), by adding caustic soda, for example, a neutral region in which aluminum hydroxide is formed is formed, and floc is generated by adding a flocculant The 002 treated water is generated by performing a process such as This 002 treated water is sent to a sedimentation tank 009 via a pipe (not shown). The supernatant clarified water separated by specific gravity in the sedimentation tank 009 and generated in the supernatant reaches the treated water tank 0011 via the pipe 0010 or is discarded after being sent to the reuse tank 0012. Further, the sludge separated by specific gravity in the settling tank 009 is sent to the dehydrator 0014 through a pipe 0013 provided at the bottom thereof. A dehydrated cake (not shown) formed by the dehydrator 0014 is discarded. The clarified water produced by the dehydrator 0014 may be returned to the drainage tank 001 for washing with osmotic liquid. In the figure, P is a pump, M is a motor, and I is a blade.

  In the conventional drainage treatment method for osmotic water washing described above, the supernatant clarified water stored in the treated water tank 0011 is obtained by adsorbing an organic substance, a surfactant, a fluorescent solution and a developing agent or the like. However, it has not reached pure clear water. Therefore, the supernatant clear water in the treated water tank 0011 has a structure that is forced to be discharged and is not suitable for recycling.

  In this type of drainage treatment method for osmotic water washing, in order to ensure refining water that is clarified water produced after treatment, a microfiltration device (MF membrane device) or a reverse osmosis membrane filtration device ( There is a need to adopt an RO membrane device).

  Thus, in this type of drainage treatment method for osmotic water washing as intended by the present invention, it has not been possible to search for prior art that employs this type of MF membrane device or RO membrane device. Therefore, a general drainage / waste liquid treatment method / apparatus will be described and the relationship with the present invention will be described.

  As literature, JP 2010-89071 A or JP 2013-193079 A can be mentioned. However, in this literature (1) and (2), an MF membrane device and an RO membrane device are simply arranged in series. It is considered that this type of MF membrane device and RO membrane device are not effectively used because double filtration is intended (only to improve the collection performance of filtration). Therefore, for example, high precision separation in the MF membrane device intended by the present invention is achieved, and the load such as clogging of the RO membrane in the RO membrane device is reduced, or the load on the dehydrator is reduced (with the MF membrane device). It is considered that the synergistic effect with the RO membrane device and the like, the effective use of the device, etc., and other effects such as the improvement of trapping property, and the removal of other general bacteria, the prevention of corruption, etc. cannot be expected. Moreover, although Unexamined-Japanese-Patent No. 2014-117684 is mentioned, this literature (3) is the structure which arranged the buffer tank between the MF membrane apparatus and the RO membrane apparatus, or arranged each separately, or each arranged separately. Yes, mainly for the purpose of adjusting the pH, storing the processing liquid, and / or adjusting the flow (improving the collection ability of the filtration and ensuring the flow of the processing liquid), and this kind of MF membrane device It is considered that the RO membrane device is not effectively used. Therefore, it is considered that the effects intended by the present invention cannot be expected as in the above-mentioned documents (1) and (2).

JP 2010-89071 A JP 2013-193079 A JP 2014-117684 A

  The present invention intends to achieve the following effects in order to solve the conventional problems.

  That is, the present invention performs the drainage treatment of the osmotic water washing generated in the osmotic flaw inspection, and the first purpose is to generate the effluent (waste liquid) of the osmotic water washing into reusable clear water. , Reuse (recycle) almost the entire amount of clear water. In addition, as a second object, the MF membrane device, the RO membrane device, and other devices are connected to each other and / or through addition of a chemical solution at an appropriate location, etc., with high accuracy in the MF membrane device. And reducing the load such as clogging of the RO membrane in the RO membrane device, or reducing the load on the dehydrator (the synergistic effect between the MF membrane device and the RO membrane device, the effective use of the device, etc. , Improvement of trapping ability, etc.), removal of other general bacteria, prevention of spoilage, etc.

  In order to solve the conventional problems and achieve the effects of the present invention, the present invention provides a drainage treatment apparatus and method for osmotic water washing generated in a penetrant flaw inspection disclosed in claims 1 to 7. provide.

The invention of claim 1 is a drainage (waste liquid) treatment device for osmotic water washing generated in osmotic flaw inspection,
The first treated water treated in the drainage tank of osmotic water washing (raw water tank storing the effluent of osmotic water washing) and the reaction tank equipped with activated carbon is led to a microfiltration device (MF membrane device) connected via a pipe. The second treated water separated by the MF membrane device is guided to the activated carbon tower via a pipe, and the high-concentration fifth treated water separated by the MF membrane device is led to the MF concentrated water tank via the pipe,
In the activated carbon tower, after adding sulfuric acid and caustic soda to the second treated water, a reverse osmosis membrane treated water tank is connected to the activated carbon tower through a pipe, and the fourth treated water treated in the activated carbon tower is reverse osmosis. It is a structure that leads to a reverse osmosis membrane filtration device (RO membrane device) via a membrane treated water tank, and the clarified water generated by the RO membrane device can be recycled or discharged.
This is a wastewater treatment device for osmotic water washing that occurs in the penetrant flaw detection test that allows the high-concentration fifth treated water led to the MF concentrated water tank to be dehydrated through a pipe and to reduce the volume of sludge. Highly accurate separation in the MF membrane device is achieved through the continuous arrangement of the membrane device, the RO membrane device, and / or other devices, and / or addition of chemicals at appropriate locations, and the RO in the RO membrane device Reduction of load such as clogging of membrane, or reduction of load of dehydrator (synergistic effect of MF membrane device and RO membrane device, effective use of device, and other improvements in collection performance, etc.) In addition, there are other features such as removal of general bacteria and prevention of spoilage. Furthermore, since a settling tank, a coagulation tank, etc. are not provided, there is an actual benefit that it can contribute to facilitation of processing, work, maintenance, etc. and cost reduction.

  In the invention of claim 2, the RO membrane device is generated by a penetrant flaw inspection that enables desalination by using a reverse osmosis membrane (RO membrane) made of a synthetic polymer spiral element to reduce the salt concentration. The effluent treatment apparatus for osmotic water washing is characterized by being able to achieve the features of claim 1 and providing an optimum reverse osmosis membrane to achieve this feature.

  According to the invention of claim 3, the MF membrane device uses a hollow fiber membrane module having a nominal pore diameter of 0.1 to 0.03 μm made of polyvinylidene fluoride (PVDF) as a raw material, and detects penetrant flaw detection. The effluent treatment device for osmotic water washing generated in (1) has the characteristics that the feature of claim 1 can be achieved and that an optimum MF membrane can be provided to achieve this feature.

  The invention according to claim 4 is a wastewater treatment apparatus for osmotic water washing in which activated carbon is carried into the reaction tank, which is generated by a penetrant flaw inspection automatically supplied intermittently via a screw feeder. In order to achieve this feature, there is a feature that can provide an optimum mechanism for bringing activated carbon into the reaction vessel.

The invention of claim 5 is a drainage (waste liquid) treatment method for osmotic water washing that occurs in osmotic inspection,
A first step of guiding the drainage of the osmotic water washing to the drainage tank of the osmotic water washing (raw water tank storing the drainage of the osmotic water washing) with a pump and a pipe;
The organic matter, surfactant, or fluorescent solution and development (agent) contained in the drainage of the osmotic water washing stored in the osmotic water washing drainage tank are adsorbed to the activated carbon in the reaction tank to generate the first treated water. A second step;
Lead to the microfiltration device (MF membrane device) connected to the reaction tank, and in the MF membrane device, the organic matter, surfactant, fluorescent solution, development (agent) in the first treated water (or drainage of the permeate washing) Recovering the activated carbon adsorbing the water, separating the germs and generating a second treated water,
A fourth step of sending the second treated water separated by the MF membrane device to the MF treated water tank via the pipe, adding sulfuric acid and caustic soda to generate third treated water;
A fifth step of leading to an activated carbon tower connected to the MF treated water tank and generating a fourth treated water containing no organic matter, surfactant, or fluorescent solution, and development (agent);
Further, a sixth step of guiding the high-concentration fifth treated water separated by the MF membrane device to the MF concentrated water tank through the pipe,
A seventh step of guiding the fourth treated water separated by the activated carbon tower to a reverse osmosis membrane treated water tank via a pipe;
The reverse osmosis membrane treated water tank is connected to a reverse osmosis membrane filtration device (RO membrane device) via a pipe, and the fourth treated water is separated by the RO membrane device, and the clarified water generated by separation treatment is recycled or discharged. 8th and 9th steps,
A tenth step of guiding the high-concentration fifth treated water led to the MF concentrated water tank to a dehydrator via a pipe to achieve volume reduction of sludge;
It is a drainage treatment method for osmotic water washing that occurs in osmotic flaw inspection, and it is possible to generate treated water for osmotic water washing wastewater into reusable clear water and to reuse almost all of the clear water (recycling) There is a feature that can be achieved. Further, since no settling tank, agglomeration tank, etc. are provided, there are practical benefits such as ease of processing / work / maintenance and cost reduction, or speeding up of work / maintenance.

  Invention of Claim 6 adds the filter aid to the 5th treated water of MF concentration water tank, and can ensure the dewaterability of the filter cloth of a dehydrator, The drainage processing method of the osmotic water washing generated by the penetration inspection inspection Thus, the characteristics of claim 5 can be achieved, and there can be provided an optimum state of adding a filter aid to achieve this characteristic.

The invention of claim 7 is configured to store the clarified water produced by separating the fourth treated water in the RO membrane device in the RO permeate tank, and the separated concentrated water to be stored in the RO concentrated water tank.
This is a drainage treatment method for osmotic water washing that occurs in a penetrant flaw inspection in which clarified water is recycled and the concentrated water is further drained. In order to achieve the characteristics of claim 5, There exists the characteristic which can provide the arrangement | positioning and connection structure with an optimal RO membrane apparatus, RO permeation | transmission water tank, and RO concentrated water tank.

FIG. 1 is a flowchart of an example that is preferable for explaining a drainage treatment apparatus for osmotic water washing that occurs in a penetrant inspection according to an embodiment of the present invention, and a method thereof. FIG. 1 is a flowchart of an example that is preferable for explaining a drainage treatment apparatus for osmotic water washing that occurs in a penetrant inspection according to an embodiment of the present invention, and a method thereof. Preferred flowchart for explaining the concept of FIG. Flow chart of an example, explaining a drainage treatment apparatus for osmotic water washing generated in a conventional penetrant inspection and its method Flow chart of an example, explaining a drainage treatment apparatus for osmotic water washing generated in a conventional penetrant inspection and its method An example flowchart illustrating the concept of FIG.

  The description of the drainage treatment apparatus for washing with penetrant (fluorescent solution, developer (agent)) generated in penetrant flaw inspection will be described with reference to FIGS. 1 and 2. The raw water tank in which the drainage of the osmotic water washed by the penetrant flaw inspection (not shown) is stored. A level sensor is attached to the drainage tank 1 for washing with osmotic liquid (the same applies to other tanks, and is omitted). The drainage tank 1 for osmotic water washing is connected to a reaction tank 3 by a first pipe 2, and activated carbon 6 supplied by a screw feeder 5 is accommodated in the reaction tank 3. The reaction tank 3 is connected to a microfiltration device (MF membrane device 8) by the second pipe 7. Although not shown, this MF membrane device 8 employs a hollow fiber membrane module 800 having a nominal pore diameter of 0.1 to 0.03 μm and preferably 0.02 m made of polyvinylidene fluoride (PVDF). The suspension is supported in the casing 801. A plurality of casings 801 are arranged on the frame 802 like a shoji. As will be described later, air is supplied to the MF membrane device 8, and the drainage of the osmotic water washing treated in the reaction tank 3 and guided to the hollow fiber membrane module 800 using this air is extruded and filtered. Used to do.

  The MF membrane device 8 is connected to the activated carbon tower 11 and / or the MF treated water tank 12 by the third pipe 10. And in this MF process water tank 12, the sulfuric acid and caustic soda which are mentioned later are added and processed, and clear preliminary water is produced | generated. The MF membrane device 8 is connected to the MF concentrated water tank 15 by the fourth pipe 13.

  The MF treated water tank 12 is connected to a reverse osmosis membrane treated water tank 17 by a fifth pipe 16, and the clear preliminary water treated in the MF treated water tank 12 is passed through the fifth pipe 16 to the reverse osmosis membrane treated water tank 17. And temporarily store. The reverse osmosis membrane treated water tank 17 is connected to a reverse osmosis membrane filtration device (RO membrane device 21) by a sixth pipe 20. Although not shown, this RO membrane device 21 employs a reverse osmosis membrane 2100 made of a synthetic polymer spiral element, and a casing 2101 that is supported by a frame 2102 in a horizontal state, and this casing 2101. And a reverse osmosis membrane 2100 built in. The clear preliminary water introduced into the casing 2101 is filtered through the reverse osmosis membrane 2100 to generate clear water. This clarified water is recycled or discharged through the eighth and ninth pipes (not labeled).

  The MF concentrated water tank 15 is connected to a dehydrator 23 by a seventh pipe 22, and the dehydrator 23 can reduce the volume of sludge. Also, the dehydrated cake (not shown) is discarded.

  Next, a drainage (waste liquid) treatment method for permeate water washing generated in the permeation flaw inspection will be described with reference to FIGS.

  In the first step, the drainage X of the osmotic water washing generated in the osmotic flaw inspection is transferred to the drainage tank 1 of the osmotic water washing (raw water tank storing the drainage of the osmotic water washing) with a pump P (not shown) and a pipe (not shown). Lead.

  In the second step, the osmotic water washing wastewater X stored in the osmotic water washing drainage tank 1 is guided to the reaction tank 3 by the first pipe 2, and the organic matter, surfactant, Alternatively, the fluorescent solution and the development (agent) are adsorbed on the activated carbon 6 added to the reaction tank 3 to generate the first treated water Y1 (first treated raw water).

  In the third step, the first treated water Y1 is led to a microfiltration device (MF membrane device 8) connected to the reaction tank 3 via the second pipe 7, and the first treated water Y1 ( Or the activated carbon 6 adsorbing the organic matter, the surfactant, the fluorescent solution, and the development (agent) in the drainage water X) of the osmotic water washing is recovered, and the bacteria are separated (filtered) to obtain the second treated water. Y2 is generated. The collected activated carbon is reused after cleaning or discarded.

  In the fourth step, the second treated water Y2 separated by the MF membrane device 8 is stored in, for example, the MF treated water tank 12 via the third pipe 10, and the stored second treated water Y2 is mixed with sulfuric acid and caustic soda. Is added, and the third treated water Y3 with high clarity is generated while adjusting the pH to be suitable for the RO membrane device 21 described later. In this invention, it is the processing method which adds a sulfuric acid and caustic soda to the 2nd treated water Y2, Comprising: A pack agent is not used. Therefore, for example, there are actual benefits such as the ability to reduce the amount of the PH adjuster added, the ease of processing, work, maintenance, etc. and the reduction in cost. Further, the second treated water Y2 has a high or low concentration by water quality inspection, and determines whether it is sent to the MF treated water tank 12 or the activated carbon tower 11 in the fifth step described later. In FIG. 2, it is shown in the same frame.

  In the fifth step, the third treated water Y3 is guided to the activated carbon tower 11 connected to the MF treated water tank 12 via the 3a pipe 10a, and separated (adsorbed) by the activated carbon tower 11, and organic matter, surfactant, Alternatively, the fourth treated water Y4 (clarified preliminary water) free from fluorescent solution and development (agent) and free from various bacteria is generated. In the activated carbon tower 11, for example, the clarification is ensured by adsorbing the color and dirt of the third treated water Y <b> 3 to the activated carbon. In the activated carbon tower 11, the contaminated activated carbon is collected and reused after being cleaned or discarded.

  In the sixth step, the high-concentration fifth treated water Y5 separated by the MF membrane device 8 is guided to the MF concentrated water tank 15 through the fourth pipe 13 to ensure a state in which the sludge component is concentrated and will be described later. As described above, the load on the dehydrator 23 is reduced, and the operation and operation of the dehydrator 23 and the like are improved. The MF concentrated water tank 15 is supplied with a filter aid 15a by a screw feeder 5. In addition, this MF membrane device 8 employs, for example, a hollow fiber membrane module 800 having a nominal pore diameter of 0.02 μm, and can reduce the load on the RO membrane device 21 and efficiently separate and collect sludge. In addition, there are practical benefits such as bacteria removal.

  Before the high-concentration fifth treated water Y5 separated by the MF membrane device 8 is led to the MF concentrated water tank 15 via the fourth pipe 13, the intermediate storage tank 30 is interposed and the MF concentrated water tank 15 is interposed. It is intended to be guided by natural flow and to be powered off.

  In the seventh step, the fourth treated water Y4 separated (adsorbed) by the activated carbon tower 11 is guided to the reverse osmosis membrane treated water tank 17 through the fifth pipe 16, and the fourth treated water Y4 in the RO membrane device 21 is introduced. Prepare for processing. The fourth treated water Y4 may be used as dilution water for the first return Q1 to the drainage tank 1 for washing with osmotic liquid (reuse, the same applies hereinafter).

  In the eighth and ninth steps, the reverse osmosis membrane treated water tank 17 is connected to the reverse osmosis membrane filtration device (RO membrane device 21) via the sixth pipe 20, and the fourth treated water Y4 is treated as the reverse osmosis membrane treated water tank 17. The RO membrane device 21 is put into the RO membrane device 21. The RO membrane device 21 applies only the osmotic pressure of the component dissolved in the fourth treated water Y4 to the reverse osmosis membrane (RO membrane), so that only water enters the membrane. The organic substance, the surfactant, the fluorescent solution, the developing (agent) component and the salt are concentrated and separated (filtering / adsorption processing). The clarified water Y6 generated by the RO membrane device 21 is recycled (eighth step) or discharged (9th step). This RO membrane device 21 mainly removes salt and removes and separates ions (salt). In other words, by ensuring the decrease in salinity, avoiding the occurrence of stains and achieving recycling, the original purpose can be achieved, and there is an actual benefit that energy saving, cost reduction and environmental maintenance can be achieved. . If necessary, the produced clarified water Y6 is subjected to various bacteria treatment in a water quality state. The clarified water Y6 may return to the reverse osmosis membrane treated water tank 17 for the second return Q2.

  In the tenth step, the high-concentration fifth treated water Y5 led to the MF concentrated water tank 15 is guided to the dehydrator 23 through the seventh pipe 22 to achieve sludge volume reduction. Since the present invention does not use a polymer flocculant, in the dehydrator 23, the frequency of clogging of the membrane is small, and maintenance management and efficient implementation can be performed. In addition, in order to ensure the filterability by the membrane of the dehydrator 23, an auxiliary agent may be added. Further, the treated water generated in the dehydrator 23 is sent to the RO membrane device 21 and treated together with the fourth treated water Y4. Furthermore, the treated water generated in the dehydrator 23 may be subjected to a third return Q3 to the drainage tank 1 for washing with osmotic liquid as dilution water.

  As described above, according to the present invention, the first return Q1 to the third return Q3, recycling, and the like can achieve substantially complete closure of the drainage of the osmotic water washing (complete recycling of treated water).

  The explanation of the drainage (waste liquid) treatment apparatus for the osmotic water washing generated in the osmotic flaw detection described above, the method thereof, and the like show a preferable example. Therefore, there is no reason to be bound by the above-mentioned conditions. For example, other embodiments and other structures and means that can exhibit the same effects and features are within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Drainage tank of osmotic water washing 2 1st piping 3 Reaction tank 5 Screw feeder 6 Activated carbon 7 2nd piping 8 MF membrane apparatus 800 Hollow fiber membrane module 801 Casing 802 Frame 10 3rd piping 10a 3a piping 11 Activated carbon tower 12 MF processing Water tank 13 4th pipe 15 MF concentrated water tank 15a Filter aid 16 5th pipe 17 Reverse osmosis membrane treated water tank 20 6th pipe 21 RO membrane device 2100 Reverse osmosis membrane 2101 Casing 2102 Frame 22 7th pipe 23 Dehydrator 30 Intermediate storage tank 001 Drainage tank for osmotic water washing 001a Drainage water for osmotic water washing 002 Pipe 003 Adsorption tank 004a Activated carbon 004b Bentonite liquid 005 Pipe 006 Reaction tank 006a Packing agent 007 Adjustment layer 007a Caustic soda 008 Aggregation layer 008a Polymer flocculant 008a Pipe 0011 Treated water tank 0012 Reuse tank 0013 Pipe 0014 Dehydrator X Drainage of osmotic water washing Y1 1st treated water Y2 2nd treated water Y3 3rd treated water Y4 4th treated water Y5 5th treated water Y6 Clear water Q1 1st Return Q2 Second return Q3 Third return

The present invention relates to a wastewater treatment apparatus for osmotic water rinsing containing a fluorescent solution and a developer generated in an osmotic flaw detection test, and a method thereof.

In order to solve the conventional problems and achieve the effects of the present invention, the present invention is disclosed in claims 1 to 7 and is a drainage of osmotic water washing containing a fluorescent solution and a developer generated in a penetrant flaw inspection. A processing apparatus and method are provided.

According to the first aspect of the present invention, after the fluorescent liquid is applied to the aircraft material and penetrated into the microcracks, the surface penetrating liquid is washed with water, the developer treatment is performed, and the penetrating liquid water washing containing the fluorescent liquid and the developer is performed. Wastewater treatment equipment ,
The first treated water treated in the drainage tank of osmotic water washing (raw water tank storing the effluent of osmotic water washing) and the reaction tank equipped with activated carbon is led to a microfiltration device (MF membrane device) connected via a pipe. The second treated water separated by the MF membrane device is guided to the MF treated water tank or the activated carbon tower through the pipe, and the high concentration fifth treated water separated by the MF membrane apparatus is fed to the MF concentrated water tank through the pipe. With a configuration leading to
In MF treatment water tank, after adding sulfuric acid or caustic soda to the second treated water is guided to the activated carbon column, along with the activated carbon column is connected to the reverse osmosis membrane treating tank via a pipe, a fourth process water treated with activated carbon tower Is connected to a reverse osmosis membrane filtration device (RO membrane device) via a reverse osmosis membrane treated water tank, and a first return pipe for returning the fourth treated water to the drainage tank is provided , and the RO membrane is provided . A second return pipe is provided for returning the clarified water generated by the apparatus to the reverse osmosis membrane treated water tank ,
High concentrations fifth process water that led to MF concentrated water tank, led into dehydrator through the pipe, while enabling volume reduction of sludge, the treated water produced by the dehydrator, drain tank permeate washing A third return pipe is provided to return to
Configuration and the fluorescent liquid generated at penetrant a waste water treatment apparatus of permeate washing containing developer, a, MF membrane device and the RO membrane apparatus and, cooperative deployment with other devices, and / or , High-precision separation in the MF membrane device through addition of chemical solution at appropriate locations, etc., and reduction of load such as clogging of RO membrane in RO membrane device, or reduction of load on dehydrator ( The synergistic effect of the MF membrane device and the RO membrane device, the effective use of the device, and other improvements in the trapping property, etc.), the removal of other general bacteria, the prevention of corruption, and the like. Furthermore, since a settling tank, a coagulation tank, etc. are not provided, there is an actual benefit that it can contribute to facilitation of processing, work, maintenance, etc. and cost reduction.

In the invention of claim 2, after applying the fluorescent solution to the aircraft material and infiltrating the microcracks, the surface penetrating solution is washed with water, the developer treatment is performed, and the penetrating solution water washing containing the fluorescent solution and the developer is performed. Wastewater treatment equipment ,
The first treated water treated in the drainage tank of osmotic water washing (raw water tank storing the effluent of osmotic water washing) and the reaction tank equipped with activated carbon is led to a microfiltration device (MF membrane device) connected via a pipe. The second treated water separated by the MF membrane device is guided to the MF treated water tank and the activated carbon tower through the pipe, and the high concentration fifth treated water separated by the MF membrane apparatus is fed to the MF concentrated water tank via the pipe. With a configuration leading to
In the MF treated water tank, after adding sulfuric acid or caustic soda to the second treated water, it is led to the activated carbon tower, and the activated carbon tower is connected to the reverse osmosis membrane treated water tank through the pipe and is treated with the activated carbon tower. Is connected to a reverse osmosis membrane filtration device (RO membrane device) via a reverse osmosis membrane treated water tank, and a first return pipe for returning the fourth treated water to the drainage tank is provided, and the RO membrane is provided. A second return pipe is provided for returning the clarified water generated by the apparatus to the reverse osmosis membrane treated water tank ,
The high-concentration fifth treated water led to the MF concentrated water tank is guided to a dehydrator through a pipe to reduce the volume of sludge, and the treated water generated by the dehydrator is discharged from the osmotic water washing. A third return pipe is provided to return to the water tank.
The wastewater treatment apparatus for osmotic water washing containing a fluorescent solution and a developer generated in the osmotic flaw detection having the above-described configuration, can achieve the same benefits as in claim 1.

According to the invention of claim 3, the MF membrane apparatus uses a hollow fiber membrane module having a nominal pore diameter of 0.1 to 0.03 μm made of polyvinylidene fluoride (PVDF) as a material, and detects penetrant flaw detection. The wastewater treatment apparatus for washing with a penetrant liquid containing a fluorescent solution and a developer generated in step 1. The feature of claim 1 can be achieved, and an optimum MF film can be provided to achieve this feature. .

The invention of claim 4 is a wastewater treatment apparatus for washing with an osmotic liquid containing a fluorescent solution and a developer that are generated in an osmotic flaw detection that automatically and intermittently carries activated carbon into a reaction tank via a screw feeder. The feature of claim 1 can be achieved, and in order to achieve this feature, there is a feature that can provide an optimum mechanism for loading activated carbon into the reaction vessel.

In the invention of claim 5, after applying the fluorescent solution to the aircraft material and infiltrating the microcracks, the surface penetrating solution is washed with water, the developer treatment is performed, and the penetrating solution water washing containing the fluorescent solution and the developer is performed. a method for draining (waste) treatment,
A first step of guiding the drainage of the osmotic water washing to the drainage tank of the osmotic water washing (raw water tank storing the drainage of the osmotic water washing) with a pump and a pipe;
A second treated water is generated by adsorbing an organic substance, a surfactant, or a fluorescent solution and a developer contained in the waste water of the permeate water wash stored in the permeate water drainage tank to the activated carbon of the reaction tank. Process,
Lead to the microfiltration device (MF membrane device) connected to the reaction tank, and use the MF membrane device to remove the organic matter, surfactant, fluorescent solution, and developer contained in the first treated water (or drainage from the osmotic water washing). A third step of recovering the adsorbed activated carbon and separating the bacteria to produce second treated water;
A fourth step of sending the second treated water separated by the MF membrane device to the MF treated water tank via a pipe, adding sulfuric acid or caustic soda to generate third treated water;
A fifth step of leading to an activated carbon tower connected to the MF treated water tank and generating a fourth treated water that does not contain organic matter, surfactant, or fluorescent solution, and developer ;
Further, a sixth step of guiding the high-concentration fifth treated water separated by the MF membrane device to the MF concentrated water tank through the pipe,
A seventh process in which the fourth treated water separated by the activated carbon tower is led to the reverse osmosis membrane treated water tank via the pipe and first returned to the drain tank ;
The reverse osmosis membrane treated water tank is connected to a reverse osmosis membrane filtration device (RO membrane device) via a pipe, and the fourth treated water is separated by the RO membrane device, and the clarified water generated by the separation treatment is treated with the reverse osmosis membrane treatment. 8th and 9th steps for recycling or discharging to the water tank for the third return ;
A tenth step of guiding the high-concentration fifth treated water led to the MF concentrated water tank to a dehydrator via a pipe to achieve volume reduction of sludge and returning to the drainage tank of the osmotic water washing ;
It is a method of draining waste water of permeate water washing containing a fluorescent solution and a developer generated in a penetrant flaw inspection, and that the treated water of waste water of permeate water wash can be generated into reusable clear water, and clear water The feature is that almost the entire amount can be reused (recycled). Further, since no settling tank, agglomeration tank, etc. are provided, there are practical benefits such as ease of processing / work / maintenance and cost reduction, or speeding up of work / maintenance.

The invention of claim 6 includes a fluorescent solution and a developer that are generated in a penetrant flaw inspection that allows a filter aid to be added to the fifth treated water of the MF concentrated water tank to ensure the dewaterability of the filter cloth of the dehydrator. This is a method for treating waste water by osmotic water washing, and is characterized in that the feature of claim 5 can be achieved and that the optimum addition of filter aid can be provided to achieve this feature.

The invention of claim 7 is configured to store the clarified water produced by separating the fourth treated water in the RO membrane device in the RO permeate tank, and the separated concentrated water to be stored in the RO concentrated water tank. 6. A method for draining waste water of permeate washing with a fluorescent solution and a developer generated in a penetrant flaw inspection in which clear water is recycled and concentrated water is further drained, and the characteristics of claim 5 can be achieved. In order to achieve this feature, there is a feature that an optimal RO membrane device, an RO permeating water tank, and an RO concentrated water tank can be provided and connected.

The explanation of the drainage treatment apparatus for osmotic water washing including the fluorescent solution and developer generated in the osmotic flaw detection described above, the method thereof, and the like show a preferable example. Therefore, there is no reason to be bound by the above-mentioned conditions. For example, other embodiments and other structures and means that can exhibit the same effects and features are within the scope of the present invention.

In the invention of claim 5, after applying the fluorescent solution to the aircraft material and infiltrating the microcracks, the surface penetrating solution is washed with water, the developer treatment is performed, and the penetrating solution water washing containing the fluorescent solution and the developer is performed. Wastewater (waste liquid) treatment method,
A first step of guiding the drainage of the osmotic water washing to the drainage tank of the osmotic water washing (raw water tank storing the drainage of the osmotic water washing) with a pump and a pipe;
A second treated water is generated by adsorbing an organic substance, a surfactant, or a fluorescent solution and a developer contained in the waste water of the permeate water wash stored in the permeate water drainage tank to the activated carbon of the reaction tank. Process,
Lead to the microfiltration device (MF membrane device) connected to the reaction tank, and use the MF membrane device to remove the organic matter, surfactant, fluorescent solution, and developer contained in the first treated water (or drainage from the osmotic water washing). A third step of recovering the adsorbed activated carbon and separating the bacteria to produce second treated water;
A fourth step of sending the second treated water separated by the MF membrane device to the MF treated water tank via a pipe, adding sulfuric acid or caustic soda to generate third treated water;
A fifth step of leading to an activated carbon tower connected to the MF treated water tank and generating a fourth treated water that does not contain organic matter, surfactant, or fluorescent solution, and developer;
Further, a sixth step of guiding the high-concentration fifth treated water separated by the MF membrane device to the MF concentrated water tank through the pipe,
A seventh process in which the fourth treated water separated by the activated carbon tower is led to the reverse osmosis membrane treated water tank via the pipe and first returned to the drain tank;
The reverse osmosis membrane treated water tank is connected to a reverse osmosis membrane filtration device (RO membrane device) via a pipe, and the fourth treated water is separated by the RO membrane device, and the clarified water generated by the separation treatment is treated with the reverse osmosis membrane treatment. 8th and 9th steps for second return to the aquarium for recycling or release;
A tenth step of guiding the high-concentration fifth treated water led to the MF concentrated water tank to a dehydrator via a pipe to achieve volume reduction of sludge and returning to the drainage tank of the osmotic water washing;
It is a method of draining waste water of permeate water washing containing a fluorescent solution and a developer generated in a penetrant flaw inspection, and that the treated water of waste water of permeate water wash can be generated into reusable clear water, and clear water The feature is that almost the entire amount can be reused (recycled). Further, since no settling tank, agglomeration tank, etc. are provided, there are practical benefits such as ease of processing / work / maintenance and cost reduction, or speeding up of work / maintenance.

Claims (7)

It is a drainage (waste liquid) treatment device for osmotic water washing generated by osmotic flaw detection,
The first treated water treated in the drainage tank of osmotic water washing (raw water tank storing the effluent of osmotic water washing) and the reaction tank equipped with activated carbon is led to a microfiltration device (MF membrane device) connected via a pipe. The second treated water separated by the MF membrane device is guided to the activated carbon tower via a pipe, and the high-concentration fifth treated water separated by the MF membrane device is led to the MF concentrated water tank via the pipe. age,
In the activated carbon tower, after adding sulfuric acid and caustic soda to the second treated water, a reverse osmosis membrane treated water tank is connected to the activated carbon tower via a pipe, and the fourth treated water treated in the activated carbon tower. Is configured to guide the reverse osmosis membrane filtration device (RO membrane device) via the reverse osmosis membrane treated water tank, and the clarified water generated by the RO membrane device can be recycled or discharged.
Waste water treatment device for osmotic water washing generated by osmotic flaw detection, wherein the high-concentration fifth treated water led to the MF concentrated water tank is guided to a dehydrator through a pipe to reduce the volume of sludge. .   The RO membrane apparatus is generated by a penetrant inspection according to claim 1, wherein a reverse osmosis membrane made of a synthetic polymer spiral element is used to perform desalting to reduce a salt concentration. Drainage treatment equipment for osmotic water washing.   The said MF membrane apparatus is set as the structure which collect | recovers the said activated carbons using the hollow fiber membrane module with a nominal hole diameter of 0.1-0.03 micrometer made from polyvinylidene fluoride (PolyVinylidene DiFluoride, PVDF) as a raw material. Wastewater treatment equipment for osmotic water washing generated by the penetrant inspection described in 1.   The activated carbon is carried into the reaction vessel by intermittent automatic supply via a screw feeder. 4. Drainage treatment of osmotic water washing generated by osmotic flaw detection according to any one of claims 1 to 3. apparatus. It is a drainage (waste liquid) treatment method for osmotic water washing that occurs in osmotic inspection.
A first step of guiding the drainage of the osmotic water washing to the drainage tank of the osmotic water washing (raw water tank storing the drainage of the osmotic water washing) with a pump and a pipe;
The organic matter, surfactant, or fluorescent solution and development (agent) contained in the drainage of the osmotic water washing stored in the osmotic water washing drainage tank are adsorbed to the activated carbon in the reaction tank to generate the first treated water. A second step of
The organic substance, the surfactant, or the fluorescent liquid in the first treated water (or drainage of the osmotic water washing) is guided to a microfiltration device (MF membrane device) connected to the reaction tank. , A third step of collecting the activated carbon adsorbing the development (agent) and filtering the bacteria to produce second treated water;
A fourth step in which the second treated water separated by the MF membrane device is sent to an MF treated water tank via a pipe, sulfuric acid and caustic soda are added, and third treated water is generated;
A fifth step that leads to an activated carbon tower connected to the MF treated water tank, and generates a fourth treated water that does not contain the organic matter, the surfactant, or the fluorescent solution, and development (agent);
A sixth step of guiding the high-concentration fifth treated water separated by the MF membrane device to an MF concentrated water tank via a pipe;
A seventh step of guiding the fourth treated water separated by the activated carbon tower to a reverse osmosis membrane treated water tank via a pipe;
This reverse osmosis membrane treated water tank is connected to a reverse osmosis membrane filtration device (RO membrane device) via a pipe, and the fourth treated water is separated by the RO membrane device, and the clarified water produced by recycling is recycled. Or the eighth and ninth steps to be discharged;
A tenth step of guiding the high-concentration fifth treated water led to the MF concentrated water tank to a dehydrator through a pipe to achieve volume reduction of sludge;
A drainage treatment method for osmotic water washing that occurs in penetration testing.   The osmotic water washing generated in the penetrant inspection according to claim 5, wherein a filter aid is added to the fifth treated water of the MF concentrated water tank so that the dehydrating property of the filter cloth of the dehydrator can be secured. Wastewater treatment method. The clarified water produced by separating the fourth treated water in the RO membrane device is stored in the RO permeated water tank, and the separated concentrated water is stored in the RO concentrated water tank.
The drainage processing method of the osmotic water washing which generate | occur | produces by the osmosis | permeation flaw test | inspection of Claim 5 made into the structure which recycles the said clarified water and further drained the concentrated water.