JP2001013133A - Water quality detecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute, continuously and automatically, detection of phenol-based material after purification treatment of miscellaneous water. SOLUTION: A water quality detector 60 arranged in a water treatment device is composed of a flow rate measuring part 57 for executing flow rate measurement of water to be treated, a body part 58 comprising a pretreatment part (58a) and a measuring part (58b), and a computer 59 for controlling the flow rate measuring part 57 and the body part 58. Detection of phenol-based material which is fat-soluble material is executed by the water quality detector 60. A gas chromatograph and a mass spectrometer are used in the measuring part (58b). The pretreatment part (58a) is composed of a filter device, an extraction pump and an elution/concentration part. A receiver of the mass spectrometer is installed on the position corresponding to a detection range of the phenol- based material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique relating to a water quality detecting device, and more particularly, to the detection of phenolic substances in water after purification treatment of sewage or the like.

[0002]

2. Description of the Related Art Conventionally, as a water quality inspection apparatus, a method of discharging fish for monitoring in a source water and inspecting the presence of a toxic substance has been adopted. Alternatively, a method is employed in which a reagent is reacted with the collected water to monitor the water quality. In addition, detection of environmental hormones is mainly performed manually.
Surfactants emit a larger amount than other chemical substances, and are collectively regulated as surface-active substances such as methylene blue active substances and cobalt thiocyanate active substances without individual regulations. As nonionic surfactants, polyoxyethylene type surfactants are mainly consumed largely, and among them, alkylphenol ethoxylates (APE) and alcohol ethoxylates account for most. In particular, APE is frequently used as an industrial detergent, dispersant, emulsifier, and the like in the textile and dyeing industries, the electronic parts industry, and the like. As shown in the upper part of FIG. 13, the hydrophilic group of APE is composed of ethylene oxide chains (EO chains) having various degrees of polymerization, and the hydrophobic group is a branched octyl group having 8 carbon atoms (octylphenol ethoxylate, OPE). And a nonyl group having 9 carbon atoms (nonylphenol ethoxylate, NPE) are commercially available. Above all, NPE is produced and consumed in larger quantities than OPE. In the APE process, the EO chain of the hydrophilic group is sequentially decomposed by a specific microorganism in the process of activated sludge treatment, but the alkylphenol of the hydrophobic group remains without being decomposed. As a result, a fat-soluble intermediate metabolite having an EO chain shortened by decomposition remains, and accumulates at the bottom of a river or the like. As a result, the shortened EO
Fat-soluble intermediate metabolites with chains are accumulated and degraded in anaerobic conditions. Then, a large amount of alkylphenol is contained in the sewage treatment water and the river from which it is discharged. Here, the biodegradation pathway of APE is schematically shown in FIG. APE degrades the hydrophobic EO chain,
It is decomposed to an alkylphenol having no O chain. Here, it is revealed by an ecotoxicological method that toxicity increases as the EO chain, which is a hydrophobic group, becomes shorter due to biodegradation. NPE has a higher hormonal activity as the EO chain becomes shorter due to biodegradation. In general, while many substances are detoxified by biodegradation, APE becomes more environmentally toxic as it is degraded.

[0003]

The conventional method of monitoring water quality using fish is effective against a fast-acting toxic substance, but is delayed in a substance such as a toxic substance by accumulating in the body. Less effective against toxic poisons. In addition, in the case of hormone-like substances and the like, the toxicity is different for the species, so that it is difficult to detect by a species different from humans. For this reason, substances that are ineffective in fish may be harmful to humans. When detecting environmental hormones manually,
It takes too much time and it is difficult to process continuously. Further, as shown in the above prior art, A
In the sewage treatment process of PE, the EO chain may be shortened to increase toxicity. As a method for detecting APE, there is a method based on the absorptivity of ultraviolet rays. However, sewage-treated water and the like have many impurities, and it is difficult to measure the absorption of the characteristic ultraviolet rays. Therefore, it takes a lot of time to perform concentration and the like, and it is difficult to perform quick processing.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems and to detect phenolic substances, in the present invention,
A water quality detector provided in the water treatment apparatus, the flow rate measurement unit for measuring the flow rate of the water to be treated, a main unit including a pretreatment and a measurement unit, and a computer for controlling the flow rate measurement unit and the main unit. A detection device is configured to detect a phenolic substance that is a fat-soluble substance. In addition, the measurement unit uses a gas chromatograph / mass spectrometer to perform highly accurate measurement. In the pretreatment section of the main body, the treatment is performed by a filter device for filtering the water to be treated, an extraction pump for extracting a fat-soluble substance from the water to be treated, and an elution / concentration section for eluting and concentrating the target substance.
The detection range of the gas chromatograph / mass spectrometer in the measuring section is made to correspond to the detection range of the phenolic substance.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present embodiment is for detecting a phenolic substance which is regarded as a problem as one of the environmental hormones, and the following operation and apparatus are intended for that purpose. Phenolic substances contained in miscellaneous water are mainly used as surfactants, and include polyoxyethylene alkylphenols. As a method for decomposing this phenolic substance, there is a method using ozone. The present invention is to monitor the ozonolysis efficacy of this phenolic substance. The side chain portion of a phenolic substance is a portion that is easily cleaved by ozone or the like, and the cleaved side chain is mainly fat-soluble and is said to act as an environmental hormone. The present invention is a water quality inspection apparatus for measuring the concentration of a phenolic substance by measuring the amount of treated water and the phenolic substance having a side chain cut.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side sectional view showing the overall configuration of a water treatment apparatus, FIG. 2 is a block diagram of the same, FIG. 3 is a block diagram showing the configuration of a water quality detection apparatus, and FIG. 5 is a schematic diagram showing a configuration of an operation in the preprocessing unit, FIG. 6 is a schematic diagram showing a configuration of a filter device, and FIG.
Is a schematic diagram showing a configuration of an extraction pump, FIG. 8 is a side sectional view showing a configuration of a dissolution / concentration tank, FIG. 9 is a schematic diagram showing a configuration of a GC / MS measuring device, and FIG. 10 is a block diagram showing a configuration of a mass spectrometer. FIG. 11 is a schematic diagram showing the configuration of the mass spectrometer, and FIG.
FIG. 2 is a diagram showing an ozone oxidation route of alkylphenol.

[0007] The overall configuration of the water treatment apparatus will be described with reference to FIGS. 1 and 2. In the present embodiment, the water treatment device 51 is for purifying sewage such as rivers, and can perform various treatments on sewage as needed to detect the degree of purification for specific substances. It was configured as follows. The water treatment device 51 includes a primary treatment unit 52, a secondary treatment unit 53, a tertiary treatment unit 54, a flow rate measurement unit 55, and an ozone treatment unit 56. The water to be treated introduced into the primary processing unit 52 is sent to the secondary processing unit 53 after separation and removal of solids, fine suspended matter, and fats and oils. In the water to be treated introduced into the secondary treatment section 53, organic substances contained by microorganisms are decomposed and stabilized. The water to be treated introduced into the tertiary treatment section 54 is added with a coagulant or the like, and a substance such as phosphorus is coagulated and precipitated and removed.

The water treated in the tertiary treatment section 54 is
It is introduced into the flow rate measuring section 55, and the flow rate measuring section 55 measures the amount of the water to be treated. Then, a catalyst for promoting oxidative decomposition is added to the water to be treated in accordance with the amount of the water to be treated. That is, the flow rate measuring unit 55 measures the amount of water and adds the catalyst. The catalyst is added and the water to be treated is thereafter introduced into the ozone treatment unit 56,
Ozone is diffused into the water to be treated, and the water to be treated is purified by the ozone. Thus, the flow rate measuring unit 55
In the above, an appropriate amount of catalyst is added, and the ozone treatment is performed, so that the ozone treatment power can be sufficiently exhibited and the purification efficiency of ozone can be improved.

In the above configuration, a water quality inspection device 60 is connected downstream of the flow rate measuring section 55 and the ozone processing section 56 to recognize the amount of the water to be treated and to detect the water to be treated after ozone treatment. It is a configuration that can be performed. The flow rate measuring unit 55 recognizes the flow rate of the water to be treated, and outputs the detected value of the flow rate of the water to be treated to the water quality inspection device 60. In the ozone treatment unit 56, the water subjected to ozone treatment is collected downstream of the ozone treatment unit 56 and introduced into the water quality detection device 60. Thus, as shown in FIG. 12, the alkylphenol is oxidized by ozone, and muconaldehyde, muconic acid, fumaric acid, maleic acid, glyoxal, glyoxylic acid, and oxalic acid are sequentially generated. That is, the water quality inspection device 60 recognizes the actual flow rate measured by the flow rate measuring section 55 of the water to be detected as the detection target, measures the concentration of the phenolic substance contained in the water to be processed, and integrates the water treatment device 51. , It is possible to efficiently oxidize and decompose the alkylphenol with ozone.

[0010] As shown in FIG. 2, the water quality inspection device 60 includes a flow rate measurement system 57, a main body 58, and a computer 59. A flow measurement system 57 is connected to the flow measurement unit 55, and a computer 59 is connected to the flow measurement system 57. Thus, the flow rate detected by the flow rate measurement system 58 can be recognized by the computer 59. A main body 58 is connected to the computer 59, and the ozone-treated water is introduced into the main body 58. This main body 58
An operation for inspecting the water quality is performed in, and the result is converted into an electric signal and then output to the computer 59. As a result, the detection substance can be recognized in the water quality inspection device 60, and the concentration of the detection substance can be recognized.

Further, as shown in FIG. 3, the main body section 58 comprises a pre-processing section 58a and a measuring section 58b. The water to be treated collected on the downstream side of the ozone treatment unit 56 is subjected to pretreatment for measurement in a pretreatment unit 58a. Then, the water to be treated, which has been subjected to the pretreatment for measurement, is introduced into the measuring unit 58b, and the component is measured in the measuring unit 58b. Thus, the main body 58 can be configured to inspect the quality of the water to be treated.
The pre-processing unit 58a and the measuring unit 58b are connected to a computer 59 and controlled by the computer 59. Further, the detection signals of the pre-processing unit 58a and the measurement unit 58b are output to the computer 59, and the computer 59 can recognize the measurement situation in the main unit 58.

The pre-processing section 58a is provided with a device for controlling the operation of filtering the collected water to be treated, extracting the target substance and concentrating the same by the computer 59. As shown in FIG. 4, the pre-processing unit 58a includes a pre-processing device controller 63, a filter device 2, an extraction pump 6, and an elution / concentration unit 9. A filter device, an extraction pump, and an elution / concentration unit are connected to the controller for the pretreatment device, and are configured to control each device. In the pre-processing device controller, a signal output from the computer 59 is converted into a signal corresponding to each device, and a signal output from each device is converted into a signal corresponding to the computer 59. . Thus, the filter device 2, the extraction pump 6, and the elution / concentration unit 9 are controlled by the computer 59, and the operation status of each device can be recognized.

The elution / concentration unit 9 is connected to a thermo module controller 64 and an ultrasonic oscillator 65. In the pre-processing operation in the elution / concentration unit 9, the thermo module controller 64 and the ultrasonic oscillator 65 are controlled. It has a configuration. The thermo-module controller 64 is used for a solution concentration operation described later, and the ultrasonic oscillator 65 is used for mixing anhydrous sodium sulfate with the solution in the operation described later. That is, the operation of elution / concentration can be completely automated, and the temperature is controlled by the thermo-module controller 64 and the mixing operation is performed by the ultrasonic oscillator 65, so that the efficiency of the pretreatment operation is improved. Can be.

Next, the overall flow of the pretreatment and measurement operations of the water to be treated in the water quality inspection device 60 will be described. In the present embodiment, the following operation for water quality inspection is performed by the water quality inspection device 60. Measurement of the flow rate of the liquid to be detected, sampling of the liquid to be detected, extraction of a fat-soluble substance from the liquid to be detected, water flow of the detection liquid to the detection cartridge, drying with nitrogen, extraction from the detection cartridge with methyl acetate, Concentration of the extract, addition of an internal standard solution, removal of water from the extract with anhydrous sodium sulfate, gasification of the concentrate, column separation, ionization and mass spectrometry. The above operations are performed in the flow measurement system 57 and the main unit 58, and each operation is controlled by the computer 59,
The detection result is recognized by the computer 59.

Next, an operation for the water to be treated in the main body 58 will be described. In the main body 58, the following operation flow is automatically controlled, and phenol-based substances are
It can output at the density of the order. Solid phase extraction, drying, elution, concentration and gas chromatography-mass spectrum (GC / MS) measurement of the sample. In the operation of the solid phase extraction, the pH of the collected water to be treated is adjusted,
The water to be treated is passed through the cartridge for extraction. Acetone is injected into the extraction cartridge. By injecting acetone into the extraction cartridge, a fat-soluble phenolic substance can be extracted into the cartridge.

In the drying and elution operation, after the extraction cartridge is preliminarily dried and dried, the substance extracted into the solid phase of the cartridge is extracted into the liquid phase with methyl acetate. That is, by injecting methyl acetate into the cartridge, the target substance elutes into the methyl acetate phase. Thereby, the target substance extracted in the solid phase can be re-extracted in the liquid phase. The eluted detection target is heated and concentrated and cooled in the concentration operation. Thereafter, a standard solution is added to the concentrated detection target solution, and thereafter, anhydrous sodium sulfate is further added. Then, the supernatant of the liquid to be detected is separated, and GC / M
The measurement is performed by the S measuring machine. In the present embodiment, the above operations can be performed automatically, so that the operation time can be greatly reduced as compared with the manual operation, and each operation can be performed in parallel. Further, it is possible to automatically perform the repetitive work.

Next, the operation of the preprocessing section 58a will be described with reference to FIGS. The water to be treated, which has been treated in the above-mentioned ozone treatment section 56, is supplied to the pretreatment section 58a.
And taken into the collection tank 1. In the collection tank 1, the pH of the water to be treated is adjusted in order to efficiently perform the subsequent operation. In this embodiment, hydrochloric acid is used as a pH adjusting reagent. The water to be treated, the pH of which has been adjusted in the collection tank 1, is filtered by the filter device 2. As shown in FIG.
1 and housings 72 and 73 and a winding section 74. Further, pipes for passing the water to be treated are connected to the housings 72 and 73.

A part of the roll-shaped filter 71 is held by filter housings 72 and 73, and the water to be treated is supplied to the extraction pump 6 via the filters held by the filter housings 72 and 73. The upper portion 72 of the filter housing is configured to be able to move up and down, and when filtering the water to be treated, moves upward to hold the filter. When the filter is replaced, the housing 72 slides downward, the filter is released from the holding, the filter is taken up by the take-up portion 74, and the unused portion is removed from the housing 72.
Located between 73. After this, the housing slides upward to hold the filter. That is, the used filter is wound up, and the unused portion of the filter is automatically held in the filter housings 72 and 73. In the process of winding the roll-shaped filter 71, the filter can be replaced, and a smooth filter replacement operation can be continuously performed. Thereby, the filter can be easily replaced, and the working time can be reduced.

Then, the water to be treated filtered by the filter device 2 is introduced into an extraction pump 6. The extraction pump 6 includes a syringe 80 and a piston 7 as shown in FIG.
The piston 79 is slid by the driving force of a stepping motor 75. The extraction pump 6 is connected to the introduction and discharge paths of the water to be treated via two check valves 81 and 82, and the water to be treated is introduced from the collection tank 1 to the extraction cartridge 5 described later. It is configured to supply. Then, alkylphenol, which is a fat-soluble substance, is extracted into the extraction cartridge 5. An arm 78 is provided at the lower end of the piston 79 inserted into the syringe 80.
Is connected, and the other end of the arm 78 is provided with a screw hole. A screw rod 77 is screwed into one end of the arm 79 provided with a screw hole. The screw rod 77 is disposed parallel to the sliding direction of the piston 79, and
7 has a stepping motor 75 via a belt 76.
Driven by Therefore, the arm 78 can be slid up and down by the rotation of the screw rod 77, and the piston 79 can slide.

The water to be treated introduced into the extraction pump 6 is
Water is passed through the cartridge 5. The cartridge 5 is stored in the cartridge stocker 3 in the pre-processing section 58a, and the cartridge 5 is filled with acetone by the pump 4. Thereafter, the water to be treated is passed through the cartridge 5. That is, the cartridge 5 is housed in the cartridge stocker 3, and one
The syringes 4 are taken out one by one and filled with acetone. After this, a cartridge 5 filled with acetone
Are passed through the extraction pump 6. Since the cartridge 5 is not in contact with the acetone at the time of storage, the storage period of the cartridge 5 can be extended. This can reduce maintenance work.

Nitrogen gas is passed through the cartridge 5 through which the water to be treated is passed, and preliminary drying is performed. Thereafter, the cartridge 5 is further dried with nitrogen gas. The dried cartridge 5 is automatically introduced into the elution / concentration unit 9. The elution / concentration unit 9 includes an elution / concentration tank 9
a, comprising an actuator for installing a stopper in the elution / concentration tank 9a and an anhydrous sodium sulfate input device. A pump 7 for supplying methyl acetate to the elution / concentration unit 9
And a pump 8 for supplying hexane. After the drying operation described above, methyl acetate is injected into the cartridge 5 by the pump 7. By injecting methyl acetate, the target substance extracted into the solid phase of the cartridge 5 elutes into the liquid phase. The methyl acetate solution in which the target substance is dissolved is introduced into the elution / concentration tank 9a.

The structure of the elution / concentration tank 9a will be described with reference to FIG. The elution / concentration tank 9a is composed of a main body 84, a special tank 85 arranged at the center of the main body, a special plug 86 inserted into the lower part of the special tank, and a thermo module 8 mounted on the outer peripheral surface of the main body.
8 and a water cooling plate 89 mounted on the outer peripheral surface of the thermo module 88. The exclusive plug 86 is automatically arranged below the exclusive tank 85 by the actuators 90a and 90b. The main body 84 is provided with a slit 87 for checking the liquid level.
6 is configured to recognize the state of the substance introduced above. An ultrasonic transducer (not shown) is mounted on the side of the main body 84, and is configured to mix the supplied anhydrous sodium sulfate.

The elution / concentration tank 9a into which the methyl acetate solution has been introduced is heated by the attached thermomodule 88 to heat and concentrate the methyl acetate solution. In this example, the solution is heated to about 60 ° C. and concentrated to about 10 times. At this time, the concentration state can be recognized from the liquid level confirmation slit. When the concentration of the methyl acetate solution is sufficiently performed, the heating by the thermo module 88 is stopped,
The main body is cooled by the water cooling plate 89. Thus, the concentrated solution is cooled in the elution / concentration tank 9a. The thermo module 88 and the water cooling plate 89 are controlled by the thermo module controller 64, and the ultrasonic oscillator 65 is connected to the ultrasonic transmitter 65 described above.

In the elution / concentration tank 9a, hexane, which is a standard solution, is added to the concentrated methyl acetate solution by the pump 8. In the solution to which the standard solution was added,
Further, anhydrous sodium sulfate is supplied from the stocker 13. The anhydrous sodium sulfate to be charged here can be formed into pellets to maintain the quality, and can be easily mixed as a powder. The methyl acetate solution to which anhydrous sodium sulfate is added is mixed with the solution and anhydrous sodium sulfate by an ultrasonic vibrator attached to an elution / concentration tank. After adding anhydrous sodium sulfate as described above, the supernatant of the solution is collected by a syringe, a part of the collected solution is stocked in a vial, and the other is injected into the injector 92 of the GC / MS measurement device. Further, the syringe is washed by the washing tank 12,
It is configured to be used repeatedly.

Next, the configuration of the measuring section 58b will be described with reference to FIG.
This will be described with reference to FIGS. The measuring unit 58b is GC / M
This is an S measurement device, and is constituted by a gas chromatography device 91, a mass spectrometer 94 and a control device 95. The measurement unit 58b is connected to a computer 59, and is configured to control the measurement and recognize the situation by the computer 59. The sample injected into the injector 92 of the measuring section 58b is introduced into the gas chromatograph 91 together with the carrier gas. The sample introduced into the gas chromatograph 91 is introduced into a heat exchanger via a column. At this time, the sample gasified by the characteristics of the column is discharged from the column in an order according to the characteristics of each component. Thereafter, the gasified sample reaches the mass flow controller 96 via the filter. Further, it is introduced into the mass spectrometer via the ion power source 93.

Next, the configurations of the mass spectrometer 94 and the controller 95 will be described with reference to FIGS. The control device 95 includes display units 109, 110, and 111, a signal processing circuit 112, an inverter 113, and a controller 114. The control device 95 is connected to the computer 59. The display unit 109 is connected to the mass flow controller 96 and the display unit 110
Is connected to the pillar vacuum gauge 108, and the display unit 111
Is connected to the temperature sensor 107. Pillar vacuum gauge 1
08 and the temperature sensor 107 are connected to the mass spectrometer 94, and measure the degree of vacuum and the temperature of the mass spectrometer 94. That is, the display units 109, 110,
111 allows the state of the mass spectrometer 94 to be recognized.

The signal processing circuit 112 is connected to the receiver 104 of the mass spectrometer 94.
The configuration is such that the detection signal of step 04 is recognized and the detection signal is converted so that it can be processed by the computer 59.
The inverter 113 is connected to the triple electrode 102 of the mass spectrometer 94.
And applies a high-frequency voltage to the triple electrode 102. Further, the controller 114 is connected to the absolute vacuum gauge 106 connected to the mass spectrometer 94.

The mass spectrometer 94 comprises the triple electrode 102, a coil 103 mounted on the circumference of the cylindrical body 101, and a receiver 104. Cylindrical body 10
A triple electrode 102 is disposed inside 1 so that the axial direction thereof is parallel to one another, and a receiver 104 is disposed on the opposite side of the cylindrical body 101 from the ion source 93 side. Cylindrical body 101
A sample ionized by the ion source 93 is introduced into the inside. A high-frequency electric field is applied to the triple electrode 102 disposed inside the cylindrical body 101 by the inverter 113, and the ionized sample is rotated at high speed inside the cylindrical body 101 by the electrostatic field of the triple electrode 102. A constant current source 134 is connected to the coil 103, and a current flows through the coil 103. Coil 103
The ions undergo a rotating action due to the magnetic field generated by.
Thereby, the ionized sample is dispersed by the mass difference. However, due to the high-speed rotation that the ions receive in the electrostatic field,
Dispersion between ions of the same mass is overwhelmed, and at the same time, the degree of dispersion due to the mass difference is increased. Thereby, the mass spectrometer 9
4 increases the detection sensitivity.

The ionized sample arrives at the receiver 104 in this way, the receiver 104 recognizes the arrival of the ionized sample, and outputs a detection signal to the signal processing circuit 1.
The data is output to the computer 59 via the control unit 12. Thus, mass spectrometry can be performed with high resolution, and the computer 59 can recognize sample components. This mass spectrometer is configured to be able to measure two types of molecules in addition to water, nitrogen, and oxygen, and in this embodiment, it is configured to be able to measure masses of 135 and 188. This is for measuring phenolic substances, which are environmental hormones. By limiting the measurement range in a mass spectrometer, measurement accuracy can be improved and production costs can be reduced. In addition, operation and control become easy.

[0030]

According to the present invention, there is provided a water quality detector provided in a water treatment apparatus, comprising: a flow rate measuring section for measuring a flow rate of water to be treated; and a pretreatment and measuring section. Since it is composed of a main unit and a computer that controls the flow rate measuring unit and the main unit, water quality inspection can be performed automatically and continuously. As a result, the time and cost required for water quality inspection can be reduced. In addition, it is possible to recognize the concentration of the substance detected by the flow rate measurement of the treated water after the treatment.

According to a second aspect of the present invention, there is provided a water quality detector for detecting the quality of the water to be treated in the water treatment apparatus, wherein the main body comprises a flow measuring unit, a pre-processing unit, and a measuring unit. And a phenolic substance, which is a fat-soluble substance, is detected. Therefore, the phenolic substance can be easily detected, and the time and cost required for the water quality test can be reduced. In addition, the concentration of phenolic substances in the water to be treated can be recognized.

According to a third aspect of the present invention, there is provided a water quality detector for detecting the quality of water to be treated in a water treatment apparatus, comprising: a flow rate measuring section, a pre-processing section, and a measuring section; Since it consists of a computer that controls the unit and uses a gas chromatograph / mass spectrometer for the measuring unit, it can easily detect trace amounts of phenolic substances, simplify the detection operation, and reduce the time until detection. Can be shortened.

According to a fourth aspect of the present invention, there is provided a water quality detector for detecting the quality of the water to be treated in a water treatment apparatus, comprising: a flow rate measuring section, a preprocessing section, and a measuring section; A filter device configured with a computer that controls the unit, a pretreatment unit filters the water to be treated, an extraction pump that extracts fat-soluble substances from the water to be treated, and an elution / concentration unit that performs elution and concentration of the target substance Therefore, a highly accurate gas chromatograph / mass spectrometer can be used. In addition, since the pretreatment of the water to be detected, which is a detection target, can be sufficiently performed, the durability of the water quality inspection device can be increased, and highly accurate detection can be performed. Thereby, it is possible to detect a trace amount of a phenolic substance.

According to a fifth aspect of the present invention, there is provided a water quality detector for detecting the quality of water to be treated in a water treatment apparatus, wherein the main body includes a flow measuring unit, a pre-processing unit, and a measuring unit. It consists of a computer that controls the mass spectrometer, uses a gas chromatograph / mass spectrometer for the measurement unit, and installs a mass spectrometer receiver at a position corresponding to the phenolic substance detection range. Accuracy can be improved. In addition, the durability and operability of the mass spectrometer can be improved. Further, the production cost of the mass spectrometer can be reduced. In addition, by limiting the substance to be detected, the detection data can be simplified. This makes it easy to handle data even in a computer connected to the mass spectrometer.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an entire configuration of a water treatment apparatus.

FIG. 2 is a block diagram.

FIG. 3 is a block diagram illustrating a configuration of a water quality detection device.

FIG. 4 is a block diagram illustrating a control configuration of a preprocessing unit.

FIG. 5 is a schematic diagram showing a configuration of an operation in a preprocessing unit.

FIG. 6 is a schematic diagram showing a configuration of a filter device.

FIG. 7 is a schematic diagram showing a configuration of an extraction pump.

FIG. 8 is a side sectional view showing a configuration of a dissolution / concentration tank.

FIG. 9 is a schematic diagram showing a configuration of a GC / MS measurement device.

FIG. 10 is a block diagram illustrating a configuration of a mass spectrometer.

FIG. 11 is a schematic diagram illustrating a configuration of a mass spectrometer.

FIG. 12 is a view showing an ozone oxidation pathway of an alkylphenol.

FIG. 13 is a schematic view showing a process in which an alkylphenol ethylene oxide compound is biodegraded by a specific organism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Collection tank 2 Filter device 5 Cartridge 6 Elution pump 9 Elution / concentration part 92 Injector

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Akira Murai 3-3-22 Nakanoshima, Kita-ku, Osaka Kansai Electric Power Co., Inc. (72) Inventor Fujio Takada 15-26 Hatada-cho, Ibaraki-shi, Osaka Co., Ltd. (72) Inventor Yoshikazu Hamajima 15-26 Hatada-cho, Ibaraki City, Osaka Prefecture

Claims (5)

[Claims] 1. A water quality detector provided in a water treatment apparatus, comprising: a flow rate measuring unit for measuring a flow rate of water to be treated; a main unit including a pretreatment and a measuring unit; and a flow rate measuring unit and a main unit. A water quality detection device comprising a computer for controlling. 2. A water quality detector for detecting the quality of water to be treated in a water treatment apparatus, comprising: a main body comprising a flow measuring section, a pre-processing section and a measuring section, and a computer controlling the flow measuring section and the main body. A water quality detection device, comprising: a phenolic substance that is a fat-soluble substance. 3. A water quality detector for detecting the quality of water to be treated in a water treatment apparatus, comprising: a main body comprising a flow measuring section, a pre-processing section and a measuring section, and a computer controlling the flow measuring section and the main body. And a gas chromatograph
A water quality detection device characterized by using a mass spectrometer. 4. A water quality detector for detecting the quality of water to be treated in a water treatment apparatus, comprising: a main body comprising a flow measuring section, a pre-processing section and a measuring section, and a computer controlling the flow measuring section and the main body. The pretreatment unit is constituted by a filter device for filtering the water to be treated, an extraction pump for extracting a fat-soluble substance from the water to be treated, and an elution / concentration unit for eluting and concentrating the target substance. Characteristic water quality detection device. 5. A water quality detector for detecting the quality of water to be treated in a water treatment apparatus, comprising: a main body comprising a flow measuring section, a pre-processing section and a measuring section, and a computer controlling the flow measuring section and the main body. And a gas chromatograph
A water quality detection device, comprising using a mass spectrometer and providing a receiver of the mass spectrometer at a position corresponding to a detection range of a phenolic substance.