JPH03225262A - Method and instrument for measuring consumption of oxidizing agent - Google Patents
Method and instrument for measuring consumption of oxidizing agentInfo
- Publication number
- JPH03225262A JPH03225262A JP2004790A JP2004790A JPH03225262A JP H03225262 A JPH03225262 A JP H03225262A JP 2004790 A JP2004790 A JP 2004790A JP 2004790 A JP2004790 A JP 2004790A JP H03225262 A JPH03225262 A JP H03225262A
- Authority
- JP
- Japan
- Prior art keywords
- oxidizing agent
- consumption
- amount
- water
- sample water
- 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.)
- Pending
Links
- 239000007800 oxidant agent Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 8
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical group C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004021 humic acid Substances 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005281 excited state Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 239000012286 potassium permanganate Substances 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 description 6
- 238000004020 luminiscence type Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ、産業上の利用分野
本発明は、上水道原水を試料水とし、試料水中のフミン
酸を主成分とする有機物を酸化剤により酸化する際に、
酸化剤の消費量を測定する方法および装置に関する。DETAILED DESCRIPTION OF THE INVENTION A. Industrial Field of Application The present invention uses raw water from tap water as sample water, and when oxidizing organic substances containing humic acid as a main component in the sample water with an oxidizing agent,
The present invention relates to a method and apparatus for measuring oxidizing agent consumption.
■３ 発明の概要
本発明は、フミン酸を主成分とする有機物が酸化される
過程で発生４−ろ光量を測定することにより、酸化剤の
消費量を測定する乙のである。(3) Summary of the Invention The present invention measures the amount of oxidizing agent consumed by measuring the amount of filtration generated during the oxidation process of organic substances containing humic acid as a main component.
Ｃ従来の技術
最近、」二水道水源の水質悪化に伴い、塩素処理による
トリハロメタンの生成が問題となっている。C. Prior Art Recently, with the deterioration of the water quality of tap water sources, the production of trihalomethanes due to chlorination has become a problem.
トリハロメタンは発癌性を有する物質であり、水中の有
機物が塩素と反応ずろことによって生成する。Trihalomethane is a carcinogenic substance that is produced when organic matter in water reacts with chlorine.
トリハロメタンの生成量を減少させるためには、オゾン
処理や活性炭処理などの高度浄水処理を導入すると共に
、有機物の処理状態を監視するなどの措置が必要である
。In order to reduce the amount of trihalomethanes produced, it is necessary to introduce advanced water purification treatments such as ozone treatment and activated carbon treatment, as well as to monitor the treatment status of organic matter.
現在、水中の有機物濃度の指標として、上水道では過マ
ンガン酸カリウム消費爪が採用されている。Currently, potassium permanganate consumption nails are used in water supplies as an indicator of organic matter concentration in water.
■）１発明が解決しようとする課題
しかしながら、従来の過マンガン酸カリウムの消費量の
測定は、煩雑な作業を要し、時間がかかるなどの問題が
あり、自動化ら困難であった。(2) 1. Problems to be Solved by the Invention However, the conventional measurement of the consumption amount of potassium permanganate has problems such as complicated work and time, and it has been difficult to automate the measurement.
また、従来の測定では肉眼による色の判定を行う必要が
あり、この判定において終点の判断が困難であるなど、
測定結果の精度が低いという問題があった。In addition, in conventional measurements, it is necessary to judge the color with the naked eye, which makes it difficult to judge the end point, etc.
There was a problem that the accuracy of the measurement results was low.
本発明は、このような問題点に鑑み、過マンガン酸カリ
ウムの消費量の測定において、簡素な手順により短時間
で測定可能であり、自動化にも対処し得る技術を提供す
ることを目的する。In view of these problems, it is an object of the present invention to provide a technology that can measure the amount of potassium permanganate consumed in a short time using a simple procedure and can also be automated.
Ｅ 課題を解決するための手段および作用本発明の測定
原理は、酸化剤として過マンガン酸化合物を例にとると
、次の変化に基づく。E. Means for Solving the Problems and Effects The measurement principle of the present invention is based on the following changes, taking a permanganate compound as an oxidizing agent as an example.
６機物（主成分・フミン酸） ＋ Ｍ ｎ ０４−重
積励起状態酸素
すなわち、酸化剤によって、上水道原水中のフミン酸な
どを主成分とする有機物が酸化される過程において、過
マンガン酸イオンにより一重項励起酸素が発生し、これ
が基底状態に遷移する際に発光する。6 organic substances (main component: humic acid) + M n 04 - stacked excited state oxygen, that is, in the process of oxidizing organic substances mainly composed of humic acid in water supply raw water by an oxidizing agent, permanganate ion This generates singlet excited oxygen, which emits light when it transitions to the ground state.
この発光量は、有機物量に比例することから、発光量を
測定することにより、有機物濃度、厳密には酸化剤の消
費量を測定することが可能である。Since the amount of light emitted is proportional to the amount of organic matter, by measuring the amount of light emitted, it is possible to measure the concentration of organic matter, and more precisely, the consumption amount of the oxidizing agent.
Ｆ 実施例 以下、図面を用いて、本発明の詳細な説明する。F Example Hereinafter, the present invention will be explained in detail using the drawings.
第１図は、一実施例に係る過マンガン酸カリウム消費量
測定装置の構成を示す。FIG. 1 shows the configuration of a potassium permanganate consumption measuring device according to one embodiment.
１は反応セルであり、恒温器２により加熱されるように
なっている。Reference numeral 1 denotes a reaction cell, which is heated by a thermostat 2.
試料水容器３、過マンガン酸カリウム容器４および純水
容器５には、試料水、過マンガン酸カリウムおよび純水
が蓄えられている。また、酸・アルカリ容器６には、酸
またはアルカリ溶液が蓄えられている。Sample water, potassium permanganate, and pure water are stored in the sample water container 3, potassium permanganate container 4, and pure water container 5. Further, the acid/alkali container 6 stores an acid or alkaline solution.
各容器３〜６に蓄えられた溶液は、ポンプ７、流量調節
バルブ８および流量計９により反応セルｌに供給される
ように構成されている。The solution stored in each container 3 to 6 is configured to be supplied to the reaction cell 1 by a pump 7, a flow rate control valve 8, and a flow meter 9.
排水受器ＩＯは、反応セル１からの排水を蓄え、外部に
排出するものである。The wastewater receiver IO stores wastewater from the reaction cell 1 and discharges it to the outside.
光電子倍増管（フォトマル）１１は、反応セル１の内部
で発生ずる光量を測定するものである。A photomultiplier tube (photomultiplier) 11 measures the amount of light generated inside the reaction cell 1.
演算器１２は、フォトマルＩ！の検出出力に基づいて所
定の演算を行う乙のである。発光量表示器Ｉ３は、反応
セル１の内部の発光量を表示するものである。過マンガ
ン酸カリウム消費量表示２３１４は、過マンガン酸カリ
ウムの消費量を表示するしのである。The computing unit 12 is a Photomaru I! A predetermined calculation is performed based on the detection output of the . The luminescence amount indicator I3 displays the amount of luminescence inside the reaction cell 1. The potassium permanganate consumption amount display 2314 is for displaying the consumption amount of potassium permanganate.
この装置の動作を説明する。The operation of this device will be explained.
試料水容器３は外部から試料水を取り込んで蓄えており
、この試料水が所定量だけ反応セルＩに注入される。さ
らに、過マンガン酸カリウムと、酸またはアルカリ溶液
が所定量反応セルＩに注入されろ。The sample water container 3 takes in and stores sample water from the outside, and a predetermined amount of this sample water is injected into the reaction cell I. Further, predetermined amounts of potassium permanganate and an acid or alkaline solution are injected into the reaction cell I.
この混合液は、恒温器２により一定時間加熱され、酸化
反応を生ずる。この反応の際に発生ずる光ｍをフＡトマ
ル１１により測定する。フォトマル１１が出力する計数
値に基づいて演算器１２が演算を行い、一定時間、一定
試料容量当たりの発光量を求める。さらに、あらかじめ
与えられた換算式により発光量から過マンガン酸カリウ
ムの消費量を求める。This liquid mixture is heated for a certain period of time in a constant temperature chamber 2 to cause an oxidation reaction. The light m generated during this reaction is measured using a optical camera 11. A computing unit 12 performs calculations based on the count output by the photomultiplier 11, and determines the amount of light emitted per fixed sample volume for a fixed period of time. Furthermore, the amount of potassium permanganate consumed is determined from the amount of luminescence using a conversion formula given in advance.
発光量と過マンガン酸カリウムの消費用は、それぞれ発
光量表示器１３と過マンガン酸カリウム消費量表示器１
４に表示される。For luminescence amount and potassium permanganate consumption, there is a luminescence amount display 13 and a potassium permanganate consumption amount display 1, respectively.
4 will be displayed.
測定が終了すると、反応セルＩの内部の混合液は排水受
器１０に排出され、純水容器５から注入される純水によ
り反応セルｌが洗浄される。また、装置のブランク測定
の際も、純水容器５からの純水が使用される。When the measurement is completed, the mixed liquid inside the reaction cell I is discharged to the waste water receiver 10, and the reaction cell I is washed with pure water injected from the pure water container 5. Further, pure water from the pure water container 5 is also used during blank measurement of the apparatus.
Ｇ１発明の詳細
な説明したように、本発明によれば、上水道原水中のフ
ミン酸などを主成分とずろ有機物が酸化剤によって酸化
される過程において発生する光９を測定し、その測定結
果から酸化剤の消費量を演算する。As described in detail of the G1 invention, according to the present invention, light 9 generated in the process of oxidizing humic acid and other organic substances in raw water water by an oxidizing agent is measured, and from the measurement results. Calculate the consumption amount of oxidizer.
したがって、簡素な手順によって酸化剤の消費量、すな
わ、ち有機物の濃度を測定することが可能となり、測定
の自動化にし対処できる利点がある。Therefore, it becomes possible to measure the amount of oxidizing agent consumed, that is, the concentration of organic matter, by a simple procedure, and there is an advantage that the measurement can be automated.
また、肉眼による色の判定など、感覚的な判定を伴わな
いので、測定精度が向上する利点かある。Furthermore, since it does not involve sensory judgment such as color judgment with the naked eye, it has the advantage of improving measurement accuracy.
第１図は本発明の一実施例に係る過マンカン酸カリウム
消費量測定装置の構成を示すブロック図である。
ｌ 反応セル、３・・・試料水容器、４ 過マンガン酸
カリウム容器、６・酸・アルカリ容器、１１、・、フォ
トマル、１２・・・演算器。
クト′ｌるFIG. 1 is a block diagram showing the configuration of a potassium permancanate consumption measuring device according to an embodiment of the present invention. 1. Reaction cell, 3. Sample water container, 4. Potassium permanganate container, 6. Acid/alkali container, 11.., Photomultiple, 12.. Computing unit. Act'l
Claims (2)
酸を主成分とする有機物を酸化剤により酸化する際に、
酸化剤の消費量を測定する方法において、 酸化剤として、前記有機物と反応して励起状態酸素を発
生させるものを使用し、 酸化反応の際に発生する光量を測定し、 測定された光量に基づいて、酸化剤の消費量を演算する
こと を特徴とする酸化剤消費量測定方法。(1) Using raw water from the city water supply as a sample water, when oxidizing organic substances whose main component is humic acid in this sample water with an oxidizing agent,
In the method of measuring the consumption of an oxidizing agent, an oxidizing agent that reacts with the organic substance to generate excited state oxygen is used, the amount of light generated during the oxidation reaction is measured, and the amount of light is calculated based on the measured amount of light. A method for measuring oxidizing agent consumption, characterized in that the amount of oxidizing agent consumed is calculated.
酸を主成分とする有機物を酸化剤により酸化する際に、
酸化剤の消費量を測定する装置において、 試料水を反応させるための反応セルと、 反応セルに試料水を注入する試料水注入部と、反応セル
に酸化剤を注入する酸化剤注入部と、反応セルに酸およ
びアルカリのいずれか一方を注入する酸・アルカリ供給
部と、 反応セルの内部で発生する光量を測定する光電子倍増管
と、 この光電子倍増管の検出出力に基づいて、酸化剤の消費
量を演算する消費量演算部と を備えたことを特徴とする酸化剤消費量測定装置。(2) Using raw water from a tap water as a sample water, when oxidizing organic substances whose main component is humic acid in this sample water with an oxidizing agent,
An apparatus for measuring consumption of an oxidizing agent, which includes a reaction cell for reacting sample water, a sample water injection part for injecting the sample water into the reaction cell, an oxidizing agent injection part for injecting the oxidizing agent into the reaction cell, An acid/alkali supply unit that injects either acid or alkali into the reaction cell, a photomultiplier tube that measures the amount of light generated inside the reaction cell, and a photomultiplier tube that measures the amount of oxidizing agent based on the detection output of this photomultiplier tube. An oxidizing agent consumption measurement device comprising: a consumption calculation unit that calculates consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004790A JPH03225262A (en) | 1990-01-30 | 1990-01-30 | Method and instrument for measuring consumption of oxidizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004790A JPH03225262A (en) | 1990-01-30 | 1990-01-30 | Method and instrument for measuring consumption of oxidizing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03225262A true JPH03225262A (en) | 1991-10-04 |
Family
ID=12016148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004790A Pending JPH03225262A (en) | 1990-01-30 | 1990-01-30 | Method and instrument for measuring consumption of oxidizing agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03225262A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579988A (en) * | 1991-09-24 | 1993-03-30 | Kansai Sogo Kankyo Center:Kk | Chemiluminescence-based assay for humic acid |
| JP2013221773A (en) * | 2012-04-13 | 2013-10-28 | National Agriculture & Food Research Organization | Simplified method for estimating quantity of phenylpropanoid polymer |
| CN110272745A (en) * | 2019-07-04 | 2019-09-24 | 湖南科技大学 | A kind of humic acid heavy metal deactivator oxidation modification device and its application method |
-
1990
- 1990-01-30 JP JP2004790A patent/JPH03225262A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579988A (en) * | 1991-09-24 | 1993-03-30 | Kansai Sogo Kankyo Center:Kk | Chemiluminescence-based assay for humic acid |
| JP2013221773A (en) * | 2012-04-13 | 2013-10-28 | National Agriculture & Food Research Organization | Simplified method for estimating quantity of phenylpropanoid polymer |
| CN110272745A (en) * | 2019-07-04 | 2019-09-24 | 湖南科技大学 | A kind of humic acid heavy metal deactivator oxidation modification device and its application method |
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