JP4831837B2 - Method for cleaning and detoxifying hydrogen gas measuring instrument and hazardous material contaminated parts used for aluminum content judgment - Google Patents
Method for cleaning and detoxifying hydrogen gas measuring instrument and hazardous material contaminated parts used for aluminum content judgment Download PDFInfo
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- 229910052782 aluminium Inorganic materials 0.000 title claims description 86
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 86
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 53
- 238000004140 cleaning Methods 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 25
- 239000013056 hazardous product Substances 0.000 title 1
- 239000003513 alkali Substances 0.000 claims description 31
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 239000010814 metallic waste Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 9
- 150000004820 halides Chemical class 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Natural products CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 claims description 4
- 231100000331 toxic Toxicity 0.000 claims 1
- 230000002588 toxic effect Effects 0.000 claims 1
- 238000005406 washing Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 238000001784 detoxification Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000012085 test solution Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Description
本発明は、例えばＰＣＢ等の有機ハロゲン化物質を無害化処理する際に、洗浄効率を向上させるために、アルミニウム含有量の判定を行うアルミニウム含有量判定に用いる水素ガス計測器及び有害物質汚染部材の洗浄・無害化方法に関する。 The present invention relates to a hydrogen gas measuring instrument and a hazardous substance-contaminated member used for determination of aluminum content for determining aluminum content in order to improve cleaning efficiency when an organic halogenated material such as PCB is detoxified. Related to cleaning and detoxification methods.
近年有機ハロゲン化物であるＰＣＢの汚染物を完全処理することが提案され、ＰＣＢ処理設備が稼動している。
ＰＣＢ汚染された各種の電気機器のなかでも、蛍光灯安定器、水銀灯安定器は、そのサイズが例えば５×５×３０ｃｍ等と柱状トランス等に較べて比較的小さく、またＰＣＢは液体状態ではなく、絶縁紙等に含浸されているため、無害化処理を効率よく行うことが難しく、処理されずにそのままの状態で保管されている。
In recent years, it has been proposed to completely treat PCB contaminants, which are organic halides, and PCB processing equipment is in operation.
Among various types of electrical equipment contaminated with PCB, fluorescent lamp stabilizers and mercury lamp stabilizers are relatively small in size, for example, 5 × 5 × 30 cm, etc. compared to columnar transformers, and PCB is not in a liquid state. Since it is impregnated with insulating paper or the like, it is difficult to efficiently perform the detoxification process, and it is stored without being processed.
このため、本出願人は先に蛍光灯安定器を処理する方法として、安定器中からコンデンサを取り出し、各部材毎に個別に処理することを提案した（特許文献１）。 For this reason, the present applicant has previously proposed that the condenser be taken out from the ballast and processed individually for each member as a method of processing the fluorescent lamp ballast (Patent Document 1).
ところで、各部材毎に処理する際に、洗浄処理工程があるが、蛍光灯安定器に含まれるアルミニウムの含有量が高いと、洗浄処理を効率良く行うことができない、という問題がある。 By the way, there is a cleaning processing step when processing each member, but there is a problem that if the content of aluminum contained in the fluorescent light ballast is high, the cleaning processing cannot be performed efficiently.
これは、アルミニウムは箔状態の場合には極めて薄く、その他の金属（例えば鉄）にへばりつく結果、例えばＰＣＢをその内部に含有することとなるので、洗浄効果が発揮できず、洗浄の卒業判定（ＰＣＢ含有量：０．０１ｍｇ／Ｋｇ）基準以下とするには、洗浄操作を繰り返す必要がある。 This is because aluminum is extremely thin when it is in a foil state, and as a result of sticking to other metals (for example, iron), for example, PCB is contained therein, so that the cleaning effect cannot be exhibited, and the graduation judgment of cleaning ( PCB content: 0.01 mg / Kg) In order to make it below the standard, it is necessary to repeat the washing operation.
従来においては、部材中のアルミニウムの含有量の計測は、ＪＩＳ法（Ｍ８２２０-1955）によっているが、この方法は時間を要し、しかもＰＣＢの処理設備内において迅速に対応できないという、問題がある。 Conventionally, the measurement of the aluminum content in a member is based on the JIS method (M8220-1955). However, this method takes time, and there is a problem that it cannot be promptly handled in a PCB processing facility. .
ここで、実験室でのアルミニウムの測定方法の一例を示す。
１．「酸溶解―元素分析法」
先ず、被処理物を適量（１０〜１００ｇ程度）、分析試料としてビーカに採取秤量した後、希塩酸を加えて部材に同伴するアルミニウムを溶解する。
次に、アルミニウムが完全に溶解した後、メスフラスコに液をろ過しながら移しいれ、純水で定容し分析検液とする。
その後、分析検液中のアルミニウム濃度を原子吸光分析装置（ＪＩＳ Ｇ１２５７）やプラズマ発光分析装置（ＪＩＳ Ｇ１２５８）で求める。
そして、求めたアルミニウム濃度から分析試料重量ベースの含有濃度として計算で求める。
Here, an example of a method for measuring aluminum in a laboratory is shown.
1. "Acid dissolution-elemental analysis"
First, an appropriate amount (about 10 to 100 g) of an object to be processed is collected and weighed in a beaker as an analysis sample, and then dilute hydrochloric acid is added to dissolve aluminum accompanying the member.
Next, after the aluminum is completely dissolved, the solution is transferred to a volumetric flask while being filtered, and the volume is adjusted with pure water to obtain an analytical test solution.
Thereafter, the aluminum concentration in the analytical test solution is determined by an atomic absorption analyzer (JIS G1257) or a plasma emission analyzer (JIS G1258).
And it calculates | requires by calculation from the calculated | required aluminum density | concentration as a content density | concentration based on an analysis sample weight.
そこで、洗浄効果を向上させるために、部材中に含まれるアルミニウムの含有量を迅速に判定する機器の出現が望まれていた。 Therefore, in order to improve the cleaning effect, there has been a demand for the appearance of a device that quickly determines the content of aluminum contained in a member.
本発明は、前記問題に鑑み、例えばＰＣＢ等の有機ハロゲン化物質を無害化処理する処理設備において、簡易迅速に部材中のアルミニウム含有量判定に用いる水素ガス計測器及び有害物質汚染部材の洗浄・無害化方法を提供することを課題とする。 In view of the above problems, the present invention provides a hydrogen gas measuring instrument used for determining the aluminum content in a member and cleaning of harmful substance-contaminated members in a processing facility for detoxifying an organic halide such as PCB. It is an object to provide a detoxifying method.
上述した課題を解決するための本発明の第１の発明は、アルミニウムを含む金属廃棄物に有機ハロゲン化物が含有する際に、該アルミニウム含有量を水素発生量により計測する水素ガス計測器であって、金属廃棄物試料を内筒内に投入する測定筒と、該測定筒内にアルカリ剤を注入するアルカリ注入筒と、測定筒とアルカリ注入筒とを連通可能に連結するバルブとを具備してなり、前記バルブを開放して、測定筒内にアルカリ剤を注入し、前記測定筒内でアルミニウムとアルカリ剤との反応により発生した水素を計測することを特徴とするアルミニウム含有量判定に用いる水素ガス計測器にある。 The first invention of the present invention for solving the above-described problem is a hydrogen gas measuring instrument that measures the aluminum content from the amount of hydrogen generated when an organic halide is contained in a metal waste containing aluminum. A measurement cylinder for introducing a metal waste sample into the inner cylinder, an alkali injection cylinder for injecting an alkaline agent into the measurement cylinder, and a valve for connecting the measurement cylinder and the alkali injection cylinder so that they can communicate with each other. Te becomes, by opening the valve, injecting an alkaline agent in the measuring tube, used in the aluminum content determined, characterized by measuring the hydrogen generated by the reaction of aluminum and alkali agent in the measuring cylinder It is in a hydrogen gas measuring instrument.
第２の発明は、第１の発明において、発生した水素ガスを捕集するガス捕集筒を具備することを特徴とするアルミニウム含有量判定に用いる水素ガス計測器にある。 According to a second aspect of the present invention, in the first aspect of the invention, there is provided a hydrogen gas measuring instrument used for determining an aluminum content, characterized by comprising a gas collecting cylinder for collecting the generated hydrogen gas .
第３の発明は、第１又は２の発明において、前記アルカリ剤が水酸化ナトリウム又は水酸化カリウムであることを特徴とするアルミニウム含有量判定に用いる水素ガス計測器にある。 The third invention is the invention of the first or second in the hydrogen gas meter used in the aluminum content determined, wherein the alkaline agent is sodium hydroxide or potassium hydroxide.
第４の発明は、第１乃至３のいずれか一つの発明において、金属廃棄物試料を内筒内に投入する際、アセトン又はイソプロピルアルコールを混入してなることを特徴とするアルミニウム含有量判定に用いる水素ガス計測器にある。 According to a fourth invention, in any one of the first to third inventions, the determination of the aluminum content is characterized by mixing acetone or isopropyl alcohol when the metal waste sample is put into the inner cylinder. It is in the hydrogen gas measuring instrument to be used .
第５の発明は、有機ハロゲン化物を含有する部材を破砕する破砕工程と、破砕した部材を粗洗浄する粗洗浄工程と、第１乃至４のいずれか一つの発明のアルミニウム含有量判定に用いる水素ガス計測器を用いて水素発生量を求め、発生した水素ガス量を基に、予め求めた水素ガス量とアルミニウム量との関係から、アルミニウム量を求め、所定のアルミニウムの含有基準であるか否かを判定するアルミニウム含有量判定工程と、アルミニウム含有量が所定値以下の場合に、アルカリ洗浄するアルカリ洗浄工程とを含むことを特徴とする有害物質汚染部材の洗浄・無害化方法にある。
また、以下の構成とするようにしてもよい。
（１） 金属廃棄物中に残存するＰＣＢ付着アルミニウム含有量の判定方法は、ＰＣＢが付着したアルミニウムを含む金属廃棄物を洗浄した後、該金属廃棄物に、ＰＣＢが付着したアルミニウムが所定値以上含まれているか否かを判定する判定方法であって、ＰＣＢが付着したアルミニウムを含む金属廃棄物試料を計測し、水素ガス計測器の測定筒の内筒内に投入する工程と、該測定筒内と連結するバルブを有するアルカリ注入筒から、バルブを開放してアルカリ剤を注入する工程と、前記測定筒内でアルミニウムとアルカリ剤との反応により発生した水素を計測する水素ガス計測工程と、発生した水素ガス量を基に、予め求めた水素ガス量とアルミニウム量との関係から、アルミニウム量を求め、所定のアルミニウムの含有基準であるか否かを判定するのが好ましい。
（２） （１）において、前記アルカリ剤が水酸化ナトリウム又は水酸化カリウムであるのが好ましい。
（３） （１）において、金属廃棄物試料を内筒内に投入する際、アセトン又はイソプロピルアルコールを混入するのが好ましい。
（４） （１）において、水素ガス計測器が、ＰＣＢが付着したアルミニウムを含む金属廃棄物試料を内筒内に投入してなる測定筒と、該測定筒内にアルカリ剤を注入するアルカリ注入筒と、測定筒とアルカリ注入筒とを連通可能に連結するバルブとを具備してなり、前記バルブを開放して、測定筒内にアルカリ剤を注入し、前記測定筒内でアルミニウムとアルカリ剤との反応により発生した水素を計測するのが好ましい。
（５） また、ＰＣＢ汚染部材の洗浄・無害化方法は、ＰＣＢを含有する部材を破砕する破砕工程と、破砕したＰＣＢが付着したアルミニウムを含む金属廃棄物を粗洗浄する粗洗浄工程と、（１）のＰＣＢ付着アルミニウム含有量の判定方法を用いてアルミニウム含有量を判定するアルミニウム含有量判定工程と、アルミニウム含有量が所定値以下の場合に、ＰＣＢが付着したアルミニウムを含む金属廃棄物をアルカリ洗浄するアルカリ洗浄工程とを含むのが好ましい。
According to a fifth aspect of the present invention, there is provided a crushing step of crushing a member containing an organic halide, a rough cleaning step of roughly washing the crushed member, and hydrogen used for determining the aluminum content according to any one of the first to fourth inventions. Determine the amount of hydrogen generated using a gas meter, determine the amount of aluminum based on the relationship between the amount of hydrogen gas and the amount of aluminum determined in advance, based on the amount of hydrogen gas generated, and whether it is the specified aluminum content standard There is provided a method for cleaning and detoxifying a harmful substance-contaminated member, comprising: an aluminum content determination step for determining whether or not, and an alkali cleaning step for performing alkali cleaning when the aluminum content is a predetermined value or less.
Further, the following configuration may be adopted.
(1) The method for determining the PCB-attached aluminum content remaining in the metal waste is that after the metal waste containing aluminum to which the PCB is attached is washed, the aluminum to which the PCB is attached is equal to or more than a predetermined value. A determination method for determining whether or not it is contained, a step of measuring a metal waste sample containing aluminum to which PCB is attached, and putting the sample into an inner cylinder of a measurement cylinder of a hydrogen gas measuring instrument, and the measurement cylinder From the alkali injection cylinder having a valve connected to the inside, the step of opening the valve and injecting the alkaline agent, the hydrogen gas measurement step of measuring the hydrogen generated by the reaction of aluminum and the alkaline agent in the measurement cylinder, Based on the amount of generated hydrogen gas, the amount of aluminum is determined from the relationship between the amount of hydrogen gas and the amount of aluminum determined in advance, and whether or not the specified aluminum inclusion standard Is preferably determined.
(2) In (1), the alkali agent is preferably sodium hydroxide or potassium hydroxide.
(3) In (1), it is preferable to mix acetone or isopropyl alcohol when the metal waste sample is put into the inner cylinder.
(4) In (1), the hydrogen gas measuring instrument is a measuring cylinder in which a metal waste sample containing aluminum to which PCB is attached is put into the inner cylinder, and an alkali injection for injecting an alkali agent into the measuring cylinder A cylinder, and a valve that connects the measurement cylinder and the alkali injection cylinder so that they can communicate with each other. The valve is opened to inject an alkaline agent into the measurement cylinder. It is preferable to measure the hydrogen generated by the reaction.
(5) In addition, the PCB contamination member cleaning / detoxification method includes a crushing step of crushing a member containing PCB, a rough cleaning step of roughly cleaning metal waste containing aluminum to which the crushed PCB is attached, 1) The aluminum content determination step for determining the aluminum content using the method for determining the PCB-attached aluminum content, and when the aluminum content is below a predetermined value, the metal waste containing aluminum to which the PCB is attached is alkalinized. And an alkali washing step for washing.
本発明によれば、例えばＰＣＢ等の有機ハロゲン化物質を無害化処理する処理設備において、簡易迅速に部材中のアルミニウム含有量を判定することができ、しかも有害物質汚染部材の効率的な洗浄・無害化方法を提供することができる。 According to the present invention, for example, in a treatment facility for detoxifying an organic halogenated substance such as PCB, the aluminum content in a member can be determined easily and quickly. A detoxification method can be provided.
以下、この発明につき図面を参照しつつ詳細に説明する。なお、この実施例によりこの発明が限定されるものではない。また、下記実施例における構成要素には、当業者が容易に想定できるもの、あるいは実質的に同一のものが含まれる。 Hereinafter, the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.
本発明による実施例に係るアルミニウム含有量判定に用いる水素ガス計測器について、図面を参照して説明する。
図１は、実施例に係るアルミニウム含有量判定に用いる水素ガス計測器の概略図である。
図１に示すように、本実施例に係るアルミニウム含有量判定に用いる水素ガス計測器１０は、アルミニウムを含む金属廃棄物に有機ハロゲン化物が含有する際に、アルミニウム含有量を計測する判定器であって、金属廃棄物試料を内筒内に投入する測定筒１１と、該測定筒１１内にアルカリ剤を注入するアルカリ注入筒１２と、発生した水素ガスを捕集するガス捕集筒１３と、前記測定筒１１とアルカリ注入筒１２とガス捕集筒１３とを連通可能に連結するバルブＶ1〜Ｖ4とを具備するものである。
A hydrogen gas measuring instrument used for aluminum content determination according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic diagram of a hydrogen gas measuring instrument used for determining the aluminum content according to the embodiment.
As shown in FIG. 1, the hydrogen
ここで、前記アルカリ注入筒１２に供給するアルカリ剤としては、アルミニウムと反応して水素が効率的に発生する水酸化ナトリウム又は水酸化カリウム等を用いるのが好ましい。例えば１０〜２０％のＮａＯＨかＫＯＨを使用するのが好ましい。
Here, it is preferable to use sodium hydroxide or potassium hydroxide which reacts with aluminum and efficiently generates hydrogen as the alkali agent supplied to the
また、有機ハロゲン化物（ＰＣＢ）や絶縁油との反応妨害対策として、溶解液にアセトンやＩＰＡ（イソプロピルアルコール）の添加剤を添加するのがより好ましい。 Moreover, it is more preferable to add the additive of acetone or IPA (isopropyl alcohol) to a solution as a countermeasure against reaction with an organic halide (PCB) or insulating oil.
また、反応促進手段として、遥動操作や超音波振動操作を行うのが好ましい。 Further, it is preferable to perform a swing operation or an ultrasonic vibration operation as the reaction promoting means.
このアルミニウム含有量判定に用いる水素ガス計測器１０を用いて、アルミニウムの含有量の計測を行う工程を図２乃至４を参照しつつ説明する。
A process of measuring the aluminum content using the hydrogen
＜工程１＞
先ず、電子天秤でアルミニウムを含有した鉄の試料を計量する。
次に、計量した試料を測定筒１１内の内筒１１ａ内に入れる。
次に、１０％ＮａＯＨを、アルカリ注入筒１２に入れる。終了時の各筒容積を読取り、集計する。
<Step 1>
First, an iron sample containing aluminum is weighed with an electronic balance.
Next, the weighed sample is placed in the
Next, 10% NaOH is put into the
＜工程２＞
その後、アルカリ注入筒１２の１０％ＮａＯＨを、弁Ｖ1〜Ｖ3を操作して、測定筒１１に移送する。
アルミニウムとＮａＯＨとの反応で水素ガスの泡が測定筒１１内で発生する。この水素の発生に伴い、測定筒１１内のシリンジ１１ｂが移動する。
<Process 2>
Thereafter, 10% NaOH in the
Hydrogen gas bubbles are generated in the
アルミニウムの含有量にもよるが、約１５〜６０分程度で水素の発生は完了する。
なお、測定筒１１内で発生した水素ガスが測定筒１１の容量よりも多い場合には、ガス捕集筒１３に弁Ｖ1、Ｖ4を切り替えて捕集する。
Although depending on the aluminum content, the generation of hydrogen is completed in about 15 to 60 minutes.
When the amount of hydrogen gas generated in the
＜工程３＞
終了後の各筒容積を読取り、集計し計算する。ここで、測定筒１１内での水素ガス量をＸ1、ガス捕集筒１３内での水素ガス量をＸ2とすると、水素ガス量は両者の総和となる。
<
Each cylinder volume after completion is read, aggregated and calculated. Here, if the amount of hydrogen gas in the measuring
ここで、アルミニウム１ｍｇで１．２４４７ｍＬの水素が生成される（図５の水素ガス量とアルミニウム量との関係図参照）。 Here, 1.2447 mL of hydrogen is produced with 1 mg of aluminum (see the relationship diagram between the amount of hydrogen gas and the amount of aluminum in FIG. 5).
ここで、測定筒１１内の初期の容量が１０ｍＬであり、終了後の容量が７０ｍＬであるとする。水酸化ナトリウムを入れたアルカリ注入筒１２の初期の容量が５０ｍＬであり、終了後の容量が０ｍＬであるとする。
ガス捕集筒１３の初期の容量が０ｍＬであり、終了後の容量が３０ｍＬであるとする。
このような場合には、終了後の総容量が１００ｍＬであり、初期の総容量が６０ｍＬであるので、１００−６０＝４０ｍＬとなる。
よって、アルミニウム量は３２．１ｍｇとなり、アルミの比率は０．０６２４となる。
Here, it is assumed that the initial volume in the measuring
It is assumed that the initial capacity of the
In such a case, since the total volume after the completion is 100 mL and the initial total volume is 60 mL, 100−60 = 40 mL.
Therefore, the amount of aluminum is 32.1 mg, and the aluminum ratio is 0.0624.
ここで、アルカリ洗浄に移行することができる被洗浄部材中のアルミニウム含有量の制限値を０．０６％以下とすると、基準以上のアルミニウムが含有されているので、粗洗浄を行う必要があると判定することができる。
また、制限値（０．０６％）以下の場合には、引き続きアルカリ洗浄工程を行うことができることとなる。
Here, if the limit value of the aluminum content in the member to be cleaned that can be shifted to alkali cleaning is 0.06% or less, it is necessary to perform rough cleaning because aluminum exceeding the standard is contained. Can be determined.
Further, when the amount is not more than the limit value (0.06%), the alkali cleaning step can be continuously performed.
図６に有害物質汚染部材の洗浄・無害化方法であるＰＣＢを含む蛍光灯安定器の洗浄処理のフローチャートについて説明する。
図６に示すように、有機ハロゲン化物を含有する部材を破砕する破砕工程（Ｓ１１）と、破砕した部材を粗洗浄する粗洗浄工程（Ｓ１２）と、前記アルミニウム含有量判定に用いる水素ガス計測器を用いてアルミニウム含有量を判定するアルミニウム含有量判定工程（Ｓ１３）と、アルミニウム含有量が所定値以下（例えば０．０６％以下：ＯＫ）の場合に、アルカリ洗浄するアルカリ洗浄工程（Ｓ１４）とを含むものである。
FIG. 6 illustrates a flowchart of a cleaning process for a fluorescent light ballast including PCB, which is a method for cleaning and detoxifying a harmful substance contaminated member.
As shown in FIG. 6, a crushing step (S11) for crushing a member containing an organic halide, a rough cleaning step (S12) for roughly washing the crushed member, and a hydrogen gas measuring instrument used for the determination of the aluminum content An aluminum content determination step (S13) for determining the aluminum content using an alkali cleaning step (S14) for performing alkaline cleaning when the aluminum content is a predetermined value or less (for example, 0.06% or less: OK); Is included.
また、アルミニウム含有量が所定値以上（例えば０．０６％以上：ＮＯ）の場合に、再度粗洗浄工程（Ｓ１２）で洗浄を行うか、別に処理する別処理工程（Ｓ２０）として、再度アルミニウム含有量判定工程（Ｓ１３）を行うようにする。 Moreover, when aluminum content is more than a predetermined value (for example, 0.06% or more: NO), it is cleaned again in the rough cleaning step (S12), or as another treatment step (S20) to be processed separately, the aluminum content is again included. An amount determination step (S13) is performed.
これにより、アルカリ洗浄工程Ｓ１４及び仕上げ洗浄工程Ｓ１５での洗浄効率の向上を図ることができると共に、アルカリ剤、仕上げ洗浄剤の使用量の削減を図ることができる。 Thereby, it is possible to improve the cleaning efficiency in the alkali cleaning step S14 and the finishing cleaning step S15, and it is possible to reduce the usage amount of the alkali agent and the finishing cleaning agent.
このように、本発明に係る計測装置では、構成が簡易であると共に、コンパクトであるので、現場においても迅速計測が可能となる。しかも安価に製造することができる。 As described above, the measuring apparatus according to the present invention has a simple configuration and is compact, so that quick measurement can be performed even at the site. Moreover, it can be manufactured at low cost.
また、計測時間も約３０分間前後で測定が完了するので、迅速計測が可能となる。
測定結果もアルカリ剤とアルミニウムとの反応は直線性があり、計測結果の精度がある。従来の手分析の精度と同等である。
Moreover, since the measurement is completed in about 30 minutes, the measurement can be performed quickly.
As for the measurement result, the reaction between the alkali agent and aluminum is linear, and the measurement result is accurate. It is equivalent to the accuracy of conventional manual analysis.
また、測定操作時の安全性があり、現場でも専任の分析担当者でなくとも計測が容易であるので、安全で現場使用可能である。 In addition, there is safety during measurement operation, and measurement is easy even if not a dedicated analyst at the site, so it is safe and can be used on site.
以上のように、本発明によれば、例えばＰＣＢ等の有機ハロゲン化物質を無害化処理する処理設備において、簡易迅速に部材中のアルミニウムの含有量を判定することができ、しかも有害物質汚染部材の効率的な洗浄・無害化方法を提供することができる。 As described above, according to the present invention, for example, in a processing facility for detoxifying an organic halogenated substance such as PCB, the content of aluminum in a member can be determined easily and quickly, and a harmful substance-contaminated member An efficient cleaning and detoxifying method can be provided.
１０ アルミニウム含有量判定に用いる水素ガス計測器
１１ 測定筒
１２ アルカリ注入筒
１３ ガス捕集筒
Ｖ1〜Ｖ4 バルブ
Hydrogen
Claims (5)
金属廃棄物試料を内筒内に投入する測定筒と、
該測定筒内にアルカリ剤を注入するアルカリ注入筒と、
測定筒とアルカリ注入筒とを連通可能に連結するバルブとを具備してなり、
前記バルブを開放して、測定筒内にアルカリ剤を注入し、
前記測定筒内でアルミニウムとアルカリ剤との反応により発生した水素を計測することを特徴とするアルミニウム含有量判定に用いる水素ガス計測器。 A hydrogen gas measuring device for measuring the aluminum content by the amount of hydrogen generated when an organic halide is contained in a metal waste containing aluminum,
A measuring cylinder for putting a metal waste sample into the inner cylinder;
An alkali injection cylinder for injecting an alkaline agent into the measurement cylinder;
Comprising a valve for connecting the measurement tube and the alkali injection tube so that they can communicate with each other;
Open the valve and inject an alkaline agent into the measuring cylinder,
A hydrogen gas measuring instrument used for determination of aluminum content, wherein hydrogen generated by a reaction between aluminum and an alkaline agent is measured in the measuring cylinder .
発生した水素ガスを捕集するガス捕集筒を具備することを特徴とするアルミニウム含有量判定に用いる水素ガス計測器。 In claim 1,
A hydrogen gas measuring instrument used for aluminum content determination , comprising a gas collecting cylinder for collecting generated hydrogen gas .
前記アルカリ剤が水酸化ナトリウム又は水酸化カリウムであることを特徴とするアルミニウム含有量判定に用いる水素ガス計測器。 In claim 1 or 2,
The hydrogen gas measuring instrument used for aluminum content determination , wherein the alkali agent is sodium hydroxide or potassium hydroxide.
金属廃棄物試料を内筒内に投入する際、アセトン又はイソプロピルアルコールを混入してなることを特徴とするアルミニウム含有量判定に用いる水素ガス計測器。 In any one of Claims 1 thru | or 3,
A hydrogen gas measuring instrument used for aluminum content determination , wherein acetone or isopropyl alcohol is mixed when a metal waste sample is put into an inner cylinder.
破砕した部材を粗洗浄する粗洗浄工程と、
請求項１乃至４のいずれか一つのアルミニウム含有量判定に用いる水素ガス計測器を用いて水素発生量を求め、発生した水素ガス量を基に、予め求めた水素ガス量とアルミニウム量との関係から、アルミニウム量を求め、所定のアルミニウムの含有基準であるか否かを判定するアルミニウム含有量判定工程と、
アルミニウム含有量が所定値以下の場合に、アルカリ洗浄するアルカリ洗浄工程とを含むことを特徴とする有害物質汚染部材の洗浄・無害化方法。 A crushing step of crushing a member containing an organic halide,
A rough cleaning step of roughly cleaning the crushed member;
The hydrogen generation amount is determined using the hydrogen gas measuring instrument used for determining the aluminum content according to any one of claims 1 to 4, and the relationship between the hydrogen gas amount and the aluminum amount determined in advance based on the generated hydrogen gas amount. From the above, an aluminum content determination step for determining the amount of aluminum and determining whether it is a predetermined aluminum content standard ,
A method for cleaning and detoxifying a toxic substance-contaminated member, comprising an alkali cleaning step of performing alkali cleaning when the aluminum content is not more than a predetermined value.
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