JPH02171699A - Incineration treatment of waste containing phosphorus - Google Patents
Incineration treatment of waste containing phosphorusInfo
- Publication number
- JPH02171699A JPH02171699A JP32733088A JP32733088A JPH02171699A JP H02171699 A JPH02171699 A JP H02171699A JP 32733088 A JP32733088 A JP 32733088A JP 32733088 A JP32733088 A JP 32733088A JP H02171699 A JPH02171699 A JP H02171699A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- slaked lime
- furnace
- agitating
- particulate solid
- 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
- 239000011574 phosphorus Substances 0.000 title claims abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000002699 waste material Substances 0.000 title description 16
- 239000007787 solid Substances 0.000 claims abstract description 11
- 150000007514 bases Chemical class 0.000 claims abstract description 9
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000013019 agitation Methods 0.000 claims description 3
- 238000004056 waste incineration Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 35
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 8
- 239000000920 calcium hydroxide Substances 0.000 abstract description 8
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 8
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 8
- 239000011575 calcium Substances 0.000 abstract description 4
- 239000001506 calcium phosphate Substances 0.000 abstract description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract description 4
- 235000011010 calcium phosphates Nutrition 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract description 2
- 238000002441 X-ray diffraction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- -1 Ca(OH)z and CaO Chemical class 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は原子力施設等から発生する廃活性炭のようなリ
ンを含有する廃棄物焼却方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for incinerating waste containing phosphorus such as waste activated carbon generated from nuclear facilities and the like.
（従来の技術）
原子力施設においては、ＴＢＰ（リン酸トリブチル）の
ようなリン化合物を吸着させた廃活性炭が大量に発生す
るが、このようなリンを含有する廃棄物は焼却処分しよ
うとすると腐食性の大きいリン酸を発生し、排ガス処理
系の配管をｔｉ傷するために焼却することができない。(Prior art) Nuclear facilities generate large amounts of waste activated carbon that has adsorbed phosphorus compounds such as TBP (tributyl phosphate), but when such phosphorus-containing waste is disposed of by incineration, it corrodes. It cannot be incinerated because it generates highly toxic phosphoric acid and damages the piping of the exhaust gas treatment system.
このために従来はこの種の廃棄物はそのままタンクに貯
蔵していたが、運転期間の増大に伴い貯蔵量が増大し、
その処理技術が求められていた。また廃活性炭に吸着さ
れているＴＯＰは危険物に指定されており、安全性の点
からもこのままの状態では問題が多く何らかの処理法が
求められていた。For this reason, conventionally, this type of waste was stored as is in tanks, but as the operating period increases, the storage amount increases.
There was a need for such processing technology. In addition, TOP adsorbed on waste activated carbon is designated as a hazardous substance, and from the standpoint of safety, there are many problems if left as is, and some kind of treatment method has been required.
（発明が解決しようとする課題）
本発明はこのような従来の問題点を解決して、ＴＯＰを
吸着した廃活性炭のようなリンを含有する廃棄物を有害
なリン酸を発生させることな（焼却処分し、安全な形態
に変換することができるリンを含有する廃棄物の焼却処
理方法を目的として完成されたものである。(Problems to be Solved by the Invention) The present invention solves these conventional problems and converts waste containing phosphorus, such as waste activated carbon that has adsorbed TOP, without generating harmful phosphoric acid ( This was completed with the aim of creating a method for incinerating waste containing phosphorus, which can be incinerated and converted into a safe form.
（課題を解決するための手段）
上記の課題を達成するためになされた本発明は、 Ｔｎ
Ｐ（リン酸トリブチル）等のリンを含有する粒状固形物
の表面に過剰の塩基性化合物を付着させたのち、攪拌移
送式の焼却炉に投入して焼却することを特徴とするもの
である。(Means for Solving the Problems) The present invention, which has been made to achieve the above problems, has the following features:
It is characterized by attaching an excess basic compound to the surface of a granular solid material containing phosphorus such as P (tributyl phosphate), and then incinerating it by putting it into an agitation transfer type incinerator.
本発明の焼却対象物は、廃活性炭のような粒状固形物で
あり、実際にはその粒径は０．１−１．０ ＋＋＋ａ＋
程度のものである。この粒状固形物は濡れている場合に
は水切りされたうえで、Ｃａ（ＯＨ）ｚ、ＣａＯのよう
なカルシウム塩、Ｍｇ（ＯＩＩＬ、ＭｇＯのようなマグ
ネシウム塩に代表される塩基性化合物をその外表面に過
剰に付着させる。付着方法としては粒状固形物と塩基性
化合物を攪拌機の内部に投入して均一に混合、攪拌すれ
ばよい。なお塩基性化合物は理論的には反応当量骨を添
加すればよいが、安全を見込んで過剰に添加するものと
する。かくして塩基性化合物を表面に付着させた粒状固
形物はスクリューフィーダー等によって撹拌移送式の焼
却炉に投入され、攪拌されつつ６００〜ａｏｏ ’ｃ程
度の焼却温度で数時間焼却される。このような形式の焼
却炉を用いれば、十分な滞留時間を取ることができ、こ
の間に粒状固形物は十分に攪拌されつつその表面の塩基
性化合物と完全に反応し、活性炭は焼却されるとともに
ＴＢＰ等のリン化合物はリン酸カルシウムやリン酸マグ
ネシウムのような安定で安全な物質となる。次に本発明
の好ましい実施例を示す。The object to be incinerated in the present invention is a granular solid such as waste activated carbon, and the actual particle size is 0.1-1.0 +++a+
It is of a certain degree. If this granular solid is wet, it is drained and basic compounds such as calcium salts such as Ca(OH)z and CaO, and magnesium salts such as Mg(OIIL and MgO) are removed. Excessive adhesion to the surface.The adhesion method is to put the granular solids and the basic compound into a stirrer and mix and stir them uniformly.Theoretically, the basic compound should be added with reaction equivalent bone. However, an excess amount should be added to ensure safety.The granular solids with the basic compound attached to the surface are then fed into an agitation transfer type incinerator using a screw feeder, etc., and are stirred until the The incinerator is incinerated for several hours at an incineration temperature of about The active carbon is completely reacted with the compound, the activated carbon is incinerated, and the phosphorus compound such as TBP becomes a stable and safe substance such as calcium phosphate or magnesium phosphate.Next, preferred embodiments of the present invention will be shown.
（実施例）
図面は本発明の実施例を示すもので、廃活性炭のような
粒状固形物はスラリータンク（１）からポンプ（２）に
より水切りフィーダ（３）に送られ水切りされる。本実
施例では粒状固形物は平均粒径０．６ ｔａｎ、灰分０
．５重量％以下、丁ＯＰ含有率ｌＯ％以下（外分比）の
球状活性炭であり、水分は外分比で球状活性炭の重量の
５０％程度となるまで脱水される。（４）は消石灰フィ
ーダであって、塩基性化合物である消石灰Ｃａ（ＯＩＩ
Ｌを撹拌機（５）へ供給し、廃活性炭と消石灰は十分に
攪拌されて廃活性炭の表面にＣａ／Ｐのモル比が２より
も過剰量の消石灰を付着させる。次に廃活性炭は攪拌移
送式の円形−段焼却炉（６）へ例えば３トン／時の割合
で投入され、熱風炉（７）からの熱風により７５０°Ｃ
で２．５時間をかけて焼却される。滞留時間が長く、十
分に撹拌されるために燃焼性は良好であり、焼却灰をＸ
線回折法により分析したところ、リン酸カルシウムが同
定された。また焼却炉の排ガスはセラミックフィルタ（
８）を通じて排ガス処理系へ排出されるが、この焼却炉
出口における排ガス中へのガス状のリンのｉｔ率は投入
全リン量の１％程度であり、９９％はリン酸カルシウム
として回収された。(Embodiment) The drawing shows an embodiment of the present invention, in which granular solids such as waste activated carbon are sent from a slurry tank (1) to a drain feeder (3) by a pump (2) and drained. In this example, the granular solids had an average particle size of 0.6 tan and an ash content of 0.
．． It is a spherical activated carbon with an OP content of 5% by weight or less and an OP content of 10% or less (external ratio), and water is dehydrated until the water becomes about 50% of the weight of the spherical activated carbon in terms of an external ratio. (4) is a slaked lime feeder, which is a basic compound slaked lime Ca (OII
L is supplied to the stirrer (5), and the waste activated carbon and slaked lime are sufficiently stirred to cause slaked lime in an excess amount of Ca/P molar ratio of 2 to adhere to the surface of the waste activated carbon. Next, the waste activated carbon is fed into a stirring transfer type circular-stage incinerator (6) at a rate of, for example, 3 tons/hour, and heated to a temperature of 750°C by hot air from a hot air furnace (7).
It takes 2.5 hours to incinerate. Due to the long residence time and sufficient stirring, the combustibility is good, and the incineration ash is
Calcium phosphate was identified when analyzed by line diffraction. In addition, the exhaust gas from the incinerator is filtered through a ceramic filter (
8) into the exhaust gas treatment system, but the IT rate of gaseous phosphorus in the exhaust gas at the incinerator outlet was about 1% of the total amount of phosphorus input, and 99% was recovered as calcium phosphate.
（発明の効果）
本発明は以上に説明したように、リンを含有する粒状固
形物を少量の灰分と安定な無機化合物に変換することが
できるものであり、大きい減容率が得られるとともに排
ガス処理系を腐食させるおそれもないものである。よっ
て本発明は従来の問題点を解決したリンを含有する廃棄
物の焼却処理方法として、産業の発展に寄与するところ
は極めて大である。(Effects of the Invention) As explained above, the present invention is capable of converting granular solids containing phosphorus into a small amount of ash and stable inorganic compounds, resulting in a large volume reduction rate and a reduction in exhaust gas. There is no risk of corrosion of the processing system. Therefore, the present invention greatly contributes to the development of industry as a method for incinerating phosphorus-containing waste that solves the conventional problems.
図面は本発明の詳細な説明するフローシートである。 （５）：攪拌機、（６）：焼却炉。 The drawing is a detailed illustrative flow sheet of the invention. (5): Stirrer, (6): Incinerator.
Claims (1)
形物の表面に過剰の塩基性化合物を付着させたのち、攪
拌移送式の焼却炉に投入して焼却することを特徴とする
リンを含有する廃棄物の焼却処理方法。Containing phosphorus, which is characterized by attaching an excess basic compound to the surface of granular solids containing phosphorus, such as TBP (tributyl phosphate), and then incinerating them by placing them in an agitation transfer type incinerator. Waste incineration treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32733088A JPH02171699A (en) | 1988-12-23 | 1988-12-23 | Incineration treatment of waste containing phosphorus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32733088A JPH02171699A (en) | 1988-12-23 | 1988-12-23 | Incineration treatment of waste containing phosphorus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02171699A true JPH02171699A (en) | 1990-07-03 |
Family
ID=18197935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32733088A Pending JPH02171699A (en) | 1988-12-23 | 1988-12-23 | Incineration treatment of waste containing phosphorus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02171699A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06230189A (en) * | 1993-02-05 | 1994-08-19 | Ngk Insulators Ltd | Processing method for phosphorus-containing fire retardant material |
| JP2015081852A (en) * | 2013-10-23 | 2015-04-27 | 株式会社東芝 | Nuclear power plant effluent treatment method and nuclear power plant effluent treatment apparatus |
| CN109830324A (en) * | 2019-01-17 | 2019-05-31 | 中国辐射防护研究院 | A kind of charging feed liquid and preparation method suitable for pyrolytic incineration method processing Radioactive myocardial damage |
| CN115197267A (en) * | 2021-04-14 | 2022-10-18 | 天津大学 | Preparation method and use method of phosphorus-fixing agent for waste tributyl phosphate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01284800A (en) * | 1988-05-12 | 1989-11-16 | Ngk Insulators Ltd | Treatment of radioactive waste |
-
1988
- 1988-12-23 JP JP32733088A patent/JPH02171699A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01284800A (en) * | 1988-05-12 | 1989-11-16 | Ngk Insulators Ltd | Treatment of radioactive waste |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06230189A (en) * | 1993-02-05 | 1994-08-19 | Ngk Insulators Ltd | Processing method for phosphorus-containing fire retardant material |
| JP2015081852A (en) * | 2013-10-23 | 2015-04-27 | 株式会社東芝 | Nuclear power plant effluent treatment method and nuclear power plant effluent treatment apparatus |
| CN109830324A (en) * | 2019-01-17 | 2019-05-31 | 中国辐射防护研究院 | A kind of charging feed liquid and preparation method suitable for pyrolytic incineration method processing Radioactive myocardial damage |
| CN109830324B (en) * | 2019-01-17 | 2022-11-25 | 中国辐射防护研究院 | Feed liquid suitable for treating radioactive organic waste liquid by pyrolysis incineration method and preparation method |
| CN115197267A (en) * | 2021-04-14 | 2022-10-18 | 天津大学 | Preparation method and use method of phosphorus-fixing agent for waste tributyl phosphate |
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