JP3341868B2 - Purification method of blank water in water quality measurement device - Google Patents
Purification method of blank water in water quality measurement deviceInfo
- Publication number
- JP3341868B2 JP3341868B2 JP02751295A JP2751295A JP3341868B2 JP 3341868 B2 JP3341868 B2 JP 3341868B2 JP 02751295 A JP02751295 A JP 02751295A JP 2751295 A JP2751295 A JP 2751295A JP 3341868 B2 JP3341868 B2 JP 3341868B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- blank
- water quality
- calibration
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 80
- 238000000034 method Methods 0.000 title claims description 7
- 238000005259 measurement Methods 0.000 title description 5
- 238000000746 purification Methods 0.000 title description 4
- 238000010790 dilution Methods 0.000 claims description 16
- 239000012895 dilution Substances 0.000 claims description 16
- 239000000356 contaminant Substances 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000000354 decomposition reaction Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 238000011109 contamination Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Physical Water Treatments (AREA)
- Sampling And Sample Adjustment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、水質測定装置におけ
るブランク水の精製方法に関し、特に、試料水分解用の
紫外線ランプを備えた水質自動測定装置内に貯溜されて
いるブランク水の汚染を、校正や希釈を行うために使用
する直前に除去することができる水質測定装置における
ブランク水の精製方法に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a water quality measuring device.
Relates to a process for the purification of that Blank, in particular, be removed immediately prior to use contaminated blank water is stored within the water quality automatic measuring apparatus equipped with a UV lamp for sample hydrolysis, in order to perform calibration and dilution The present invention relates to a method for purifying blank water in a water quality measuring device capable of producing water.
【０００２】[0002]
【従来の技術】例えば、全窒素計、全リン計等の水質自
動測定装置において、校正や希釈を行うための水は、水
道水や地下水、工業用水などを活性炭やイオン交換樹脂
で精製後、当該装置内の貯溜タンクに貯溜して使用され
るのが一般的である。しかし、精製用の活性炭筒やイオ
ン交換樹脂筒、あるいは、当該装置内の貯溜タンクに滞
留する水は、活性炭やイオン交換樹脂、貯溜タンクの素
材からの有機物などの溶出物や、バクテリア等の発生な
どによって汚染されていることがある。そのような汚染
物で汚染されている水をブランク水として校正や希釈に
用いると、校正値や測定値が異常値となり、安定した正
しい計器値が得られなくなる。2. Description of the Related Art For example, in an automatic water quality measuring device such as a total nitrogen meter and a total phosphorus meter, water for calibration and dilution is obtained by purifying tap water, groundwater, industrial water, etc. with activated carbon or ion exchange resin. It is generally used by storing it in a storage tank in the device. However, water remaining in the activated carbon cylinder or ion-exchange resin cylinder for purification or the storage tank in the apparatus may generate eluted substances such as organic substances from activated carbon, ion-exchange resin and the material of the storage tank, and bacteria and the like. It may be contaminated by such. If water contaminated with such contaminants is used as blank water for calibration or dilution, calibration values and measured values become abnormal values, and stable and correct instrument values cannot be obtained.
【０００３】[0003]
【発明が解決しようとする課題】上記した有機物などの
溶出物やバクテリア等の汚染物の発生を完全に抑えるこ
とは不可能なので、汚染の恐れがあるブランク水を使用
直前に別の方法で精製する必要がある。Since it is impossible to completely suppress the above-mentioned generation of eluates such as organic substances and contaminants such as bacteria, blank water which may be contaminated is purified by another method immediately before use. There is a need to.
【０００４】この発明は、上記問題に鑑みてなしたもの
で、その目的は、校正や希釈を行うために使用する直前
にブランク水の汚染を除去できるブランク水の精製方法
を提供することにある。[0004] The present invention has been made in view of the above problems, and has as its object to provide a method for purifying blank water that can remove the contamination of the blank water immediately before use for calibration and dilution. .
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、この発明は、校正や希釈を行うためのブランク水を
貯留するための貯留タンクおよび試料水を分解するため
の紫外線ランプを内部に備えた水質自動測定装置におい
て、前記貯留タンク内に貯留されているブランク水に対
し、その使用直前または常時、前記紫外線ランプを用い
て紫外線を照射し、ブランク水の汚染を除去するように
して、ブランク水を精製している。 SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides blank water for performing calibration and dilution.
To decompose the storage tank and the sample water for storing
Automatic water quality measuring device smell an ultraviolet lamp provided inside the
Te, the relative reservoir Lube rank water is stored in the tank, its use before or always irradiated with ultraviolet rays using the ultraviolet lamp, so as to eliminate contamination of Blank was purified Blank ing.
【０００６】[0006]
【作用】水質自動測定装置に具備されている試料水分解
用の紫外線ランプを用いて、校正や希釈を行うために使
用する直前のブランク水に対し、紫外線を照射するの
で、ブランク水に含まれる有機物などの溶出物やバクテ
リア等の汚染物を分解・消滅でき、精製されたブランク
水を校正や希釈のために用いることができる。The blank water immediately before it is used for calibration and dilution is irradiated with ultraviolet rays using an ultraviolet lamp for decomposing the sample provided in the automatic water quality measuring device, and is included in the blank water. Eluted substances such as organic substances and contaminants such as bacteria can be decomposed and eliminated, and purified blank water can be used for calibration and dilution.
【０００７】[0007]
【実施例】以下、この発明の実施例を図面に基づいて説
明する。なお、それによってこの発明は限定を受けるも
のではない。図１は、水質自動測定装置に供給されたブ
ランク水を一旦、試料水分解ユニット外に設置したタン
クに貯溜した後、精製するようにしたこの発明の第１実
施例を示す。Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the present invention is not limited thereby. FIG. 1 shows a first embodiment of the present invention in which blank water supplied to an automatic water quality measuring device is temporarily stored in a tank installed outside a sample water splitting unit and then purified.
【０００８】図１において、水質自動測定装置１は、試
料水分解用の紫外線ランプ２を有する試料水分解ユニッ
ト３と、図外の導入口から導入ライン４を通って導入さ
れるブランク水Ｐを貯溜する貯溜タンク５と、図外の試
料水導入口から試料水分解ユニット３を通り紫外線ラン
プ２を用いて紫外線を照射することによって試料水Ｓを
分解した後、特定成分を測定する図外の測定部に至る試
料水測定ライン６と、ブランク水Ｐを貯溜タンク５から
試料水分解ユニット３に送り込み、さらには、精製され
たブランク水Ｑを校正や希釈のために供給するブランク
水供給ライン７と、この供給ライン７上の貯溜タンク５
および試料水分解ユニット３間に設置されてブランク水
Ｐを貯溜タンク５から試料水分解ユニット３に送り込む
ポンプなどの送液手段８と、校正や希釈のために精製さ
れたブランク水Ｑが必要となった時、開動作するバルブ
９とからなる。In FIG. 1, an automatic water quality measuring apparatus 1 includes a sample water splitting unit 3 having an ultraviolet lamp 2 for sample water splitting and a blank water P introduced through an inlet line (not shown) through an inlet line 4. After decomposing the sample water S by irradiating ultraviolet rays using the ultraviolet lamp 2 through the sample water decomposition unit 3 from the storage tank 5 for storing and the sample water inlet (not shown), the specific component is measured. a sample water measurement line 6 leading to the measuring section, feed the blank P from the storage tank 5 to the sample water decomposition unit 3, further, the blanks water supply line for supplying to the purified blank Q calibration and dilution 7 and a storage tank 5 on this supply line 7
And a liquid feeding means 8 such as a pump which is installed between the sample water decomposition unit 3 feeds the Blank P from the storage tank 5 to the sample water decomposition unit 3, calibrated and purified Blank Q for dilution must And the valve 9 that opens.
【０００９】以下、ブランク水の精製方法について説明
する。導入ライン４を通って水質自動測定装置１に供給
されたブランク水Ｐは一旦、貯溜タンク５に貯溜され
る。そして、校正や希釈のため、精製されたブランク水
Ｑが必要となった時に、バルブ９を開動作させるととも
に、ポンプ８を作動させ、これによりブランク水Ｐがブ
ランク水供給ライン７を通って試料水分解ユニット３に
導入される。Hereinafter, a method for purifying blank water will be described. The blank water P supplied to the automatic water quality measuring device 1 through the introduction line 4 is temporarily stored in the storage tank 5. Then, for calibration and dilution, when it becomes necessary purified Blank Q, causes the opening operation of the valve 9, the pump 8 is activated, thereby Blank P passes through the blank water supply line 7 It is introduced into the sample water decomposition unit 3.
【００１０】そこで、ブランク水Ｐに紫外線ランプ２を
用いて紫外線を照射し、ブランク水Ｐに含まれる有機物
などの溶出物やバクテリア等の汚染物を分解・消滅させ
た後、精製されたブランク水Ｑを校正や希釈に用いる。
このようにして、校正や希釈を行うために使用する直前
にブランク水の汚染を除去できる。Therefore, ultraviolet light is irradiated to the blank water P using an ultraviolet lamp 2 to decompose and eliminate contaminants such as organic substances and bacteria contained in the blank water P. Use Q for calibration and dilution.
In this way, contamination of the blank water can be removed immediately before use for calibration or dilution.
【００１１】このように本実施例では、ブランク水のブ
ランク値を低減あるいは略ゼロにできるので、正しい測
定値や校正値が得られる。また、ブランク水の水質が安
定するので、測定値や校正値のばらつきが抑えられる。
さらに、水質自動測定装置１の定量下限は、ブランク値
の大きさとばらつきに依存することから、ブランク値を
下げて安定化させることによって、水質自動測定装置１
の定量下限が改善され、低濃度試料を用いた場合に高感
度化が可能となる。As described above, in this embodiment, since the blank value of the blank water can be reduced or made substantially zero, correct measured values and calibration values can be obtained. In addition, since the quality of the blank water is stabilized, variations in measured values and calibration values are suppressed.
Further, since the lower limit of quantification of the automatic water quality measuring device 1 depends on the magnitude and variation of the blank value, the lowering of the blank value and stabilization allow the water quality automatic measuring device 1 to be stabilized.
And the sensitivity can be increased when a low-concentration sample is used.
【００１２】図２は、水質自動測定装置に供給されたブ
ランク水を試料水分解ユニット内に設置したタンクに貯
溜し、常時紫外線を照射するようにしたこの発明の第２
実施例を示す。なお、図１に示したものと同一の構成部
材については、同一の符号を付してある。FIG. 2 shows a second embodiment of the present invention in which blank water supplied to an automatic water quality measuring device is stored in a tank installed in a sample water splitting unit and is constantly irradiated with ultraviolet rays.
An example will be described. The same components as those shown in FIG. 1 are denoted by the same reference numerals.
【００１３】図２において、導入ライン４を通って水質
自動測定装置１に供給されたブランク水Ｐは試料水分解
ユニット３内に設置したタンク１０に貯溜される。この
タンク１０は石英などの紫外線を透過させる材料よりな
る容器で構成されている。そして、タンク１０は常時紫
外線が照射されるように紫外線ランプ２に対向して設置
されている。１１は、校正や希釈のために、精製された
ブランク水Ｑが必要となった時に、ポンプなどの送液手
段８によって精製されたブランク水Ｑを必要箇所に送る
精製ラインである。In FIG. 2, the blank water P supplied to the automatic water quality measuring device 1 through the introduction line 4 is stored in a tank 10 installed in the sample water decomposition unit 3. The tank 10 is formed of a container made of a material that transmits ultraviolet light such as quartz. The tank 10 is installed to face the ultraviolet lamp 2 so that ultraviolet light is always emitted. 11, for calibration and dilution, when purified Blank Q is needed is a refined line Send Blank Q purified by liquid delivery means 8 such as a pump in necessary places.
【００１４】この実施例では、試料水分解ユニット３内
にタンク１０を設置し、試料水分解ユニット３内の試料
水分解用の紫外線ランプ２を常時タンク１０に照射する
ようにしたので、導入ライン４を通って水質自動測定装
置１に供給されたブランク水Ｐを常に精製されたブラン
ク水Ｑの状態でタンク１０内に収容できる。そして、校
正や希釈のために、精製されたブランク水Ｑが必要とな
った時に、バルブ９を開動作させるとともに、ポンプ８
を作動させ、これにより精製されたブランク水Ｑをタン
ク１０から精製ライン１１を通って必要箇所に送ること
ができる。したがって、精製されたブランク水Ｑを用い
て安定した正しい測定値を得ることができる。In this embodiment, the tank 10 is installed in the sample water splitting unit 3 and the tank 10 is constantly irradiated with the ultraviolet lamp 2 for sample water splitting in the sample water splitting unit 3. The blank water P supplied to the automatic water quality measuring device 1 through the tank 4 can be always stored in the tank 10 in the state of the purified blank water Q. Then, to calibrate or dilution, when purified Blank Q is needed, it causes the opening operation of the valve 9, the pump 8
Is operated, whereby the purified blank water Q can be sent from the tank 10 through the purification line 11 to a required location. Therefore, a stable and correct measurement value can be obtained using the purified blank water Q.
【００１５】なお、上記各実施例では、水質自動測定装
置として、全窒素計、全リン計などのものを示したが、
この発明は、例えば、全有機炭素計（ＴＯＣ計）、ＣＯ
Ｄ（化学的酸素要求量：Ｃｈｅｍｉｃａｌ Ｏｘｙｇｅ
ｎ Ｄｅｍａｎｄ）計などの試料水分解用の紫外線ラン
プを備えた他の装置にも同様に適用できる。In each of the above embodiments, a total nitrogen meter, a total phosphorus meter and the like are shown as automatic water quality measuring devices.
The present invention relates to, for example, a total organic carbon meter (TOC meter), a CO
D (Chemical Oxygen Demand: Chemical Oxyge
The present invention can be similarly applied to other devices including an ultraviolet lamp for decomposing a sample, such as an n Demand meter.
【００１６】[0016]
【発明の効果】以上のように、この発明では、校正や希
釈を行うためのブランク水を貯留するためのタンクおよ
び試料水を分解するための紫外線ランプを内部に備えた
水質自動測定装置において、前記タンク内に貯留されて
いるブランク水に対し、その使用直前または常時、前記
紫外線ランプを用いて紫外線を照射し、汚染を除去する
ようにしたので、ブランク水に含まれる有機物などの溶
出物やバクテリア等の汚染物を分解・消滅させることが
でき、校正や希釈を行うために使用する直前にブランク
水の汚染を除去することができ、ブランク水を用いる測
定や校正の値に汚染による誤差が持ち込まれるのを効果
的に防止することができる。 As described above, according to the present invention, calibration and rare
A tank for storing blank water for
UV lamp to decompose water and sample water
In the automatic water quality measurement device, the water stored in the tank
Immediately before or always use the blank water
Irradiation with ultraviolet rays using an ultraviolet lamp to remove contamination
Since the way, is Rukoto contaminants is decomposed and extinction of the eluate and bacteria such as the organic matter contained in the Blank
Can, calibration and dilution can decontaminating Blank just prior to use to perform the effect that the error is brought contamination to the value of the measurement and calibration using Blank
Can be prevented.
【図１】この発明の第１実施例を説明するための図であ
る。FIG. 1 is a diagram for explaining a first embodiment of the present invention.
【図２】この発明の第２実施例を説明するための図であ
る。FIG. 2 is a diagram for explaining a second embodiment of the present invention.
１…水質自動測定装置、２…紫外線ランプ、５…貯溜タ
ンク、Ｐ…ブランク水、Ｑ…精製されたブランク水、Ｓ
…試料水。1 ... automatic water quality measuring device, 2 ... ultraviolet lamp, 5 ... storage tank, P ... Blank, Q ... purified Blank, S
... Sample water.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−317577（ＪＰ，Ａ) 特開 昭60−159642（ＪＰ，Ａ) 特開 平６−194298（ＪＰ，Ａ) 特開 平４−366796（ＪＰ，Ａ) 特開 平６−88798（ＪＰ，Ａ) 特開 平３−151092（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-317577 (JP, A) JP-A-60-159642 (JP, A) JP-A-6-194298 (JP, A) JP-A-4-194 366796 (JP, A) JP-A-6-88798 (JP, A) JP-A-3-151092 (JP, A)
Claims (1)
留するための貯留タンクおよび試料水を分解するための
紫外線ランプを内部に備えた水質自動測定装置におい
て、前記貯留タンク内に貯留されているブランク水に対
し、その使用直前または常時、前記紫外線ランプを用い
て紫外線を照射し、ブランク水の汚染を除去するように
したことを特徴とする水質測定装置におけるブランク水
の精製方法。(1) storing blank water for calibration and dilution;
Automatic water quality measuring device smell the <br/> ultraviolet lamp provided inside for decomposing storage tank and the sample water for distillation
Te, the relative reservoir Lube rank water is stored in the tank, its use before or always irradiated with ultraviolet rays using the ultraviolet lamps, characterized in that so as to remove contaminants blank Water Quality A method for purifying blank water in a measuring device .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02751295A JP3341868B2 (en) | 1995-01-23 | 1995-01-23 | Purification method of blank water in water quality measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02751295A JP3341868B2 (en) | 1995-01-23 | 1995-01-23 | Purification method of blank water in water quality measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08201239A JPH08201239A (en) | 1996-08-09 |
| JP3341868B2 true JP3341868B2 (en) | 2002-11-05 |
Family
ID=12223193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02751295A Expired - Fee Related JP3341868B2 (en) | 1995-01-23 | 1995-01-23 | Purification method of blank water in water quality measurement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3341868B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100784140B1 (en) * | 2006-07-14 | 2007-12-10 | 한국바이오시스템(주) | Sterile Feeder for Water Quality Continuous Automatic Measuring Equipment |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4626413A (en) * | 1984-01-10 | 1986-12-02 | Anatel Instrument Corporation | Instrument for measurement of the organic carbon content of water |
| JPH07101204B2 (en) * | 1984-11-05 | 1995-11-01 | 株式会社日立製作所 | Method and apparatus for measuring impurities in pure water |
| JPS63246661A (en) * | 1987-03-31 | 1988-10-13 | Shimadzu Corp | Combustion type water quality analyzer |
| JPH03151092A (en) * | 1989-11-02 | 1991-06-27 | Toray Ind Inc | Column for producing ultra-pure water |
| US5132094A (en) * | 1990-03-02 | 1992-07-21 | Sievers Instruments, Inc. | Method and apparatus for the determination of dissolved carbon in water |
| JP2865265B2 (en) * | 1991-06-13 | 1999-03-08 | 株式会社東芝 | Primary water quality monitoring system for boiling water reactor |
| JPH05118983A (en) * | 1991-10-25 | 1993-05-14 | Meidensha Corp | Spectroscopic analysis device |
| JPH0688798A (en) * | 1992-09-07 | 1994-03-29 | T & C Technical:Kk | Water quality measuring instrument under minute flow rate |
| JPH06160377A (en) * | 1992-11-25 | 1994-06-07 | Fuanatsuku Business:Kk | Method and apparatus for analyzing water quality |
| JPH06317577A (en) * | 1993-05-10 | 1994-11-15 | Tokico Ltd | Carbon content measuring device |
-
1995
- 1995-01-23 JP JP02751295A patent/JP3341868B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08201239A (en) | 1996-08-09 |
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| LAPS | Cancellation because of no payment of annual fees |