JPH08224565A - Treatment apparatus for converting organic waste to inorganic matter - Google Patents
Treatment apparatus for converting organic waste to inorganic matterInfo
- Publication number
- JPH08224565A JPH08224565A JP7055199A JP5519995A JPH08224565A JP H08224565 A JPH08224565 A JP H08224565A JP 7055199 A JP7055199 A JP 7055199A JP 5519995 A JP5519995 A JP 5519995A JP H08224565 A JPH08224565 A JP H08224565A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- waste
- organic waste
- wet oxidation
- organic
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、固形物を含む有機廃棄
物の無公害処理及び再利用を可能とする処理システムに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment system that enables pollution-free treatment and reuse of organic waste containing solid matter.
【０００２】[0002]
【従来の技術】従来、固形物を含む有機廃棄物の処理
は、それに含まれる排水の処理を主たる対象としてお
り、処理液は河川あるいは海に放流し、排ガスは大気中
に放出している。また固形状の有機廃棄物は、微生物に
よる分解、焼却、埋め立て等によっている。しかし、微
生物分解では活性汚泥の発生、焼却ではばい煙や有害物
質の発生、埋め立てでは処理場の不足、悪臭や水質汚染
の発生等、環境汚染の問題が深刻化している。2. Description of the Related Art Conventionally, the treatment of organic waste containing solid matter has been mainly conducted on the treatment of wastewater contained therein, and the treated liquid is discharged into a river or the sea, and the exhaust gas is discharged into the atmosphere. Solid organic waste is decomposed by microorganisms, incinerated, and landfilled. However, problems of environmental pollution such as activated sludge generated by microbial decomposition, soot and harmful substances generated by incineration, shortage of treatment facilities in landfill, bad odor and water pollution are becoming serious problems.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、固形状のも
のを含む有機廃棄物を、外界から独立したシステムによ
って分解し、生成物を再利用することにより、無公害処
理を可能にするシステムを得ようとするものである。DISCLOSURE OF THE INVENTION The present invention is a system that enables pollution-free treatment by decomposing organic waste including solid matter by a system independent from the external environment and reusing the product. Is what you are trying to get.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するた
め、本発明のシステムは、廃棄物に含まれる固形状有機
物をスラリー状にする手段と、該スラリーに含まれる有
機物を湿式酸化容器中で高温高圧で酸化分解・液化する
手段と、該液化した処理液を触媒により無機化する手段
とからなり、さらに前記各手段から発生する処理液及び
排ガスを利用した植物栽培手段を含む。上記湿式酸化容
器は、空気添加装置と撹拌手段とを含んでもよく、触媒
による無機化手段は、高温高圧循環ポンプを用いて処理
液を触媒に循環接触させて分解を促進する。また、湿式
酸化処理過程で発生する排熱の回収、再利用システムを
含む。In order to achieve the above-mentioned object, the system of the present invention comprises means for making a solid organic substance contained in a waste into a slurry, and an organic substance contained in the slurry in a wet oxidation vessel. It comprises means for oxidative decomposition and liquefaction at high temperature and high pressure, and means for mineralizing the liquefied treatment liquid with a catalyst, and further includes plant cultivation means utilizing the treatment liquid and exhaust gas generated from each of the above means. The wet oxidation vessel may include an air addition device and a stirring means, and the catalyst mineralization means promotes decomposition by circulating the treatment liquid into contact with the catalyst using a high temperature and high pressure circulation pump. It also includes a system for recovering and reusing exhaust heat generated in the wet oxidation process.
【０００５】[0005]
【実施例】以下、本発明の廃棄物処理システムを、図面
を参照して実施例によって詳細に説明する。有機廃棄物
としては、生ゴミ、し尿、紙、木材、有機性産業廃棄物
等、固形物及び液体状のものを広く対象とすることがで
きる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The waste treatment system of the present invention will be described in detail below with reference to the drawings. As organic waste, solid waste and liquid waste such as raw garbage, human waste, paper, wood, organic industrial waste, etc. can be widely applied.
【０００６】図１は本発明の処理システムの一実施例の
フローシートである。有機廃棄物は、粉砕器を有する前
処理容器１で固形物が粉砕される。固形物が多い場合で
も、後述のように植物栽培施設からの廃液が加えられ
て、スラリー状にされる。生成したスラリーは、熱交換
器８を介して余熱され、移送ポンプ２によってバルブ９
を経て湿式酸化容器３に導入される。湿式酸化容器３で
は、スラリーは、酸化効率を高めるためにコンプレッサ
４により所定量の空気が添加された後、高温（２５０〜
３００℃）に加熱され、含まれた有機物が酸化分解・液
化される。加熱の際、有機物に含まれる水分の気化を防
ぐために、湿式酸化容器３は密閉式高圧容器となってい
る。また、有機物の濃度が高い場合には、有機物と空気
が充分混ざるように、撹拌器５の使用も可能となってい
る。FIG. 1 is a flow sheet of an embodiment of the processing system of the present invention. The solid matter of the organic waste is crushed in the pretreatment container 1 having a crusher. Even if the solid content is large, the waste liquid from the plant cultivation facility is added to form a slurry as described later. The produced slurry is preheated through the heat exchanger 8 and is transferred to the valve 9 by the transfer pump 2.
It is introduced into the wet oxidation container 3 via In the wet oxidation container 3, the slurry is heated to a high temperature (250-250 ° C) after a predetermined amount of air is added by the compressor 4 in order to enhance the oxidation efficiency.
When heated to 300 ° C., the contained organic matter is oxidatively decomposed and liquefied. The wet oxidation vessel 3 is a closed high-pressure vessel in order to prevent vaporization of water contained in the organic matter during heating. Further, when the concentration of the organic substance is high, it is possible to use the stirrer 5 so that the organic substance and the air are sufficiently mixed.
【０００７】湿式酸化容器３で液化された処理液は、バ
ルブ１０を開けることによって、湿式酸化容器３内の圧
力で、予め湿式酸化容器３と同一条件に加熱された触媒
反応器６に導入される。触媒反応容器６では、高圧高温
循環ポンプ７を使用して、有機物を触媒と連続的に反復
反応させることにより、無機質と無機ガス（二酸化炭素
及び窒素ガス）に分解する。実施例では、触媒反応器６
からの未分解物をパイプで湿式酸化容器３へと循環させ
ているが、触媒反応器６だけで処理液を循環することも
可能である。The treatment liquid liquefied in the wet oxidation vessel 3 is introduced into the catalytic reactor 6 which has been heated under the same conditions as the wet oxidation vessel 3 in advance by the pressure in the wet oxidation vessel 3 by opening the valve 10. It In the catalytic reaction container 6, the high-pressure high-temperature circulation pump 7 is used to continuously and repeatedly react organic substances with the catalyst to decompose them into inorganic substances and inorganic gases (carbon dioxide and nitrogen gas). In the example, the catalytic reactor 6
Although the undecomposed substance from No. 1 is circulated to the wet oxidation vessel 3 by a pipe, it is also possible to circulate the treatment liquid only by the catalytic reactor 6.
【０００８】この循環式の利点は、気相に含まれる酸素
を酸化分解時に効率よく処理液に混入させられることで
ある。また、湿式酸化容器３と触媒反応器６を独立させ
ているのは、従来方式では湿式酸化容器の中に触媒を封
入しているため、高濃度の有機物を処理すると、触媒に
有機物が付着してしまい、触媒の機能が劣化するので、
これを防ぐためである。The advantage of this circulation system is that oxygen contained in the gas phase can be efficiently mixed into the processing liquid during oxidative decomposition. In addition, the wet oxidation container 3 and the catalytic reactor 6 are separated from each other. In the conventional method, since the catalyst is enclosed in the wet oxidation container, when a high-concentration organic substance is treated, the organic substance adheres to the catalyst. And the function of the catalyst deteriorates,
This is to prevent this.
【０００９】無機化された処理液には、植物の生育に必
要な成分が含まれているので、バルブ１１を介して、植
物栽培施設１３へ導入される。さらに、無機ガス（二酸
化炭素及び窒素ガス）も植物の生育に利用するために、
バルブ１２を介して、植物栽培施設１３へ導入される。Since the mineralized treatment liquid contains components necessary for plant growth, it is introduced into the plant cultivation facility 13 via the valve 11. In addition, in order to utilize inorganic gas (carbon dioxide and nitrogen gas) for plant growth,
It is introduced into the plant cultivation facility 13 via the valve 12.
【００１０】湿式酸化容器３、触媒反応器６や配管系で
発生する熱はすべて回収され、熱交換器８及び植物栽培
施設１３で利用する。また、植物栽培施設１３から発生
した排液やゴミは前処理容器１に導入し、酸化分解後、
再利用する。All heat generated in the wet oxidation vessel 3, the catalytic reactor 6 and the piping system is recovered and used in the heat exchanger 8 and the plant cultivation facility 13. In addition, the waste liquid and waste generated from the plant cultivation facility 13 are introduced into the pretreatment container 1, and after oxidative decomposition,
Reuse.
【００１１】図２は本発明の特徴の１つである連続処理
を実現する際に必要な高圧高温循環ポンプ７を示し、ポ
ンプ本体は下フタ２１と上フタ２２に分割できるように
なっている。液体を移送するための羽根２３の回転は、
片側に永久磁石の内磁２９が付いたシャフト２４の回転
駆動により、また、シャフト２４の回転は電磁式の密閉
型撹拌機３０をベルトで外部から駆動することによって
発生する。そして羽根２３の回転によって、下フタ２１
のパイプから液体が羽根２３の中心部に吸い上げられた
後、羽根２３の回転力によって上フタ２２のパイプから
外へ排出される。シャフト２４の芯を出すために、スナ
ップリング２５で押えられたベアリング２６を用いてい
る。高圧高温環境に耐えるために、下フタ２１と上フタ
２２はパッキン２７を用いてシール性を高め、六角ナッ
ト２８で締め付けられる。FIG. 2 shows a high-pressure high-temperature circulation pump 7 required for realizing continuous processing, which is one of the features of the present invention, and the pump main body can be divided into a lower lid 21 and an upper lid 22. . The rotation of the blades 23 for transferring the liquid is
The rotation of the shaft 24 having the inner magnet 29 of the permanent magnet on one side is driven by rotation, and the rotation of the shaft 24 is generated by driving the electromagnetic hermetic stirrer 30 from the outside by a belt. The lower lid 21 is rotated by the rotation of the blades 23.
The liquid is sucked up from the pipe of the upper blade 22 to the center of the blade 23, and then discharged from the pipe of the upper lid 22 by the rotating force of the blade 23. A bearing 26 pressed by a snap ring 25 is used to center the shaft 24. In order to withstand a high-pressure and high-temperature environment, the lower lid 21 and the upper lid 22 are sealed with hexagon nuts 28 by using packing 27 to improve the sealing property.
【００１２】処理例 本発明の具体的実施結果の一例を、表１にしたがって説
明する。有機廃棄物の原料として兎の糞を用い、その有
機物の濃度はＣＯＤ（Ｃｒ）で２０，０００ｐｐｍ、ケ
ルダール性窒素は３０，０００ｐｐｍであった。真空引
きした内容積１リッターの湿式酸化容器３にこの有機廃
棄物（０．５リッター）を入れた後、酸化に必要な酸素
を２．５Ｍｐａ添加した。分解温度を３２０℃に設定
し、３０分間加熱した。表１の一次処理は、従来方式の
触媒を使わない湿式酸化分解液の分析結果で、ＣＯＤは
約８０％、ケルダール性窒素は約９８．８％程度酸化分
解されているが、アンモニアや酢酸が多く生成してい
る。Processing Example An example of a concrete implementation result of the present invention will be described with reference to Table 1. Rabbit feces were used as a raw material for the organic waste, and the concentration of the organic matter was 20,000 ppm in COD (Cr) and 30,000 ppm in Kjeldahl nitrogen. After the organic waste (0.5 liter) was put into the wet oxidation container 3 having an internal volume of 1 liter which was evacuated, 2.5 Mpa of oxygen required for oxidation was added. The decomposition temperature was set to 320 ° C. and heating was performed for 30 minutes. The primary treatment in Table 1 is the result of analysis of a wet oxidative decomposition solution that does not use a conventional catalyst. COD is about 80% and Kjeldahl nitrogen is about 98.8%, but ammonia and acetic acid are not decomposed. Has generated a lot.
【表１】 [Table 1]
【００１３】そこで、一次処理液を同一環境で３０分
間、触媒反応器６で触媒と連続的に反応させた。使用す
る触媒の１例を挙げれば、粒状あるいはペレット状のチ
タニア及びアルミナに、ルテニウム、パラジウムなどの
貴金属を担持したものを用いる。しかし、これに限られ
るわけではなく、例えば白金、ゼオライトのような触媒
も用いることができる。その結果、ＣＯＤは約９９．７
％、ケルダール性窒素は約９９．９７％分解された。し
かもアンモニア成分はごくわずかに存在するだけで、窒
素分のほとんどは植物の生育に必要な硝酸性窒素に変わ
っていた。さらに、酢酸は分析器の検出限界以下となっ
ていた。また、ガス成分を調べると、触媒を使わない一
次処理では、二酸化炭素濃度は約３０％程度であるが、
触媒を使うと約５０％まで増えている。これらの結果か
ら、本発明のシステムが有機廃棄物をいかに効率よく無
機物に変換できるかということがわかる。Therefore, the primary treatment liquid was continuously reacted with the catalyst in the catalytic reactor 6 for 30 minutes in the same environment. As an example of the catalyst to be used, granular or pelletized titania and alumina on which a noble metal such as ruthenium or palladium is carried are used. However, the catalyst is not limited to this, and a catalyst such as platinum or zeolite can also be used. As a result, the COD is about 99.7.
%, Kjeldahl nitrogen was decomposed by about 99.97%. Moreover, there was only a small amount of ammonia component, and most of the nitrogen content was changed to nitrate nitrogen, which is necessary for plant growth. In addition, acetic acid was below the detection limit of the analyzer. Moreover, when examining the gas components, the carbon dioxide concentration was about 30% in the primary treatment without using a catalyst.
When using a catalyst, it increases to about 50%. These results show how efficiently the system of the present invention can convert organic waste into inorganic matter.
【００１４】本発明の実施例において、廃液、ガスの利
用施設として植物栽培施設を用いているが、具体的に
は、野菜や果樹などのいわゆる植物工場的なものから、
排熱も利用することによって熱帯植物園、水族館などに
も適応できる。また、必要に応じて、完全なクローズド
サイクルとせず、養液及びガスは、温室あるいは露地栽
培の栽培施設に供給することもできる。In the embodiments of the present invention, a plant cultivation facility is used as a facility for utilizing the waste liquid and gas. Specifically, from the so-called plant factories such as vegetables and fruit trees,
It can also be applied to tropical botanical gardens and aquariums by using waste heat. Further, if necessary, the nutrient solution and gas may be supplied to a greenhouse or a cultivation facility for open field cultivation, instead of a complete closed cycle.
【００１５】[0015]
【発明の効果】本発明は上述のように、固形物を含む有
機廃棄物を、外界から独立したシステム中で処理するの
で、環境汚染が生じない無公害処理であり、その廃液に
は植物の生育に必要な成分が含まれるので植物の養液と
なり、発生するガス、排熱も有効利用するなどして有機
廃棄物の再利用化を省エネルギー、省スペースで実現す
ることができる。INDUSTRIAL APPLICABILITY As described above, the present invention treats organic waste including solid matter in a system independent from the external environment, and thus is a pollution-free treatment that does not cause environmental pollution. Since it contains components necessary for growth, it becomes a nutrient solution for plants, and the generated gas and exhaust heat can be effectively used, and the recycling of organic waste can be realized with energy saving and space saving.
【図１】本発明のシステムの１実施例を示すフローシー
トである。FIG. 1 is a flow sheet showing one embodiment of the system of the present invention.
【図２】本発明のシステムに用いる高温高圧循環ポンプ
を示す組立図である。FIG. 2 is an assembly diagram showing a high-temperature high-pressure circulation pump used in the system of the present invention.
１ 前処理容器 ２ 移送ポンプ ３ 湿
式酸化容器 ４ コンプレッサ ５ 撹拌器 ６ 触
媒反応器 ７ 高圧高温循環ポンプ ８ 熱
交換器 ９，１０，１１，１２ バルブ １３ 植
物栽培施設 ２１ 下フタ ２２ 上フタ ２３
回転羽根 ２４ シャフト ２５ スナップリング ２６
ベアリング ２７ パッキン ２８ 六角ナット ２９
永久磁石 ３０ 密閉型撹拌機1 Pretreatment Container 2 Transfer Pump 3 Wet Oxidation Container 4 Compressor 5 Stirrer 6 Catalytic Reactor 7 High Pressure High Temperature Circulation Pump 8 Heat Exchanger 9, 10, 11, 12 Valve 13 Plant Cultivation Facility 21 Lower Lid 22 Upper Lid 23
Rotating blade 24 Shaft 25 Snap ring 26
Bearing 27 Packing 28 Hexagon nut 29
Permanent magnet 30 Closed stirrer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡邉 正治 東京都文京区本駒込３丁目27番９号 耐圧 硝子工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoji Watanabe 3 27-9 Honkomagome Honkomagome, Bunkyo-ku, Tokyo Pressure resistance Glass Industry Co., Ltd.
Claims (5)
ー状にする手段と、該スラリーに含まれる有機物を湿式
酸化容器中で高温高圧で酸化分解・液化する手段と、該
液化した処理液を触媒により無機化する手段とからなる
ことを特徴とする有機廃棄物の無機化処理システム1. A means for making a solid organic substance contained in a waste into a slurry, a means for oxidatively decomposing / liquefying the organic substance contained in the slurry at high temperature and high pressure in a wet oxidation vessel, and the liquefied treatment liquid. A system for mineralizing an organic waste, which comprises a means for mineralizing with a catalyst.
拌手段とを含むことを特徴とする請求項１の有機廃棄物
の無機化処理システム2. The organic waste mineralization treatment system according to claim 1, wherein the wet oxidation container includes an air addition device and a stirring means.
循環ポンプを用いて処理液を触媒に循環接触させること
を特徴とする請求項１あるいは２のいずれかの有機廃棄
物の無機化処理システム3. The organic waste mineralization treatment system according to claim 1, wherein the catalyst mineralization means circulates the treatment liquid into contact with the catalyst using a high-temperature high-pressure circulation pump.
回収、再利用システムを含むことを特徴とする請求項１
ないし３のいずれかの有機廃棄物の無機化処理システム4. A system for collecting and reusing exhaust heat generated in the wet oxidation process.
1 to 3 organic waste mineralization treatment system
ー状にする手段と、該スラリーに含まれる有機物を湿式
酸化容器中で高温高圧で酸化分解・液化する手段と、該
液化した処理液を触媒により無機化する手段と、前記各
手段から発生する処理液及び排ガスを利用した植物栽培
手段からなることを特徴とする有機廃棄物の無機化処理
システム5. A means for making solid organic matter contained in a waste into a slurry, a means for oxidative decomposition / liquefaction of the organic matter contained in the slurry at high temperature and high pressure in a wet oxidation vessel, and the liquefied treatment liquid. A system for mineralizing an organic waste, comprising a means for mineralizing with a catalyst, and a plant cultivating means utilizing the treatment liquid and the exhaust gas generated from the respective means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055199A JP2879199B2 (en) | 1995-02-21 | 1995-02-21 | Organic waste mineralization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7055199A JP2879199B2 (en) | 1995-02-21 | 1995-02-21 | Organic waste mineralization system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08224565A true JPH08224565A (en) | 1996-09-03 |
| JP2879199B2 JP2879199B2 (en) | 1999-04-05 |
Family
ID=12992018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7055199A Expired - Fee Related JP2879199B2 (en) | 1995-02-21 | 1995-02-21 | Organic waste mineralization system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2879199B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066507A (en) * | 2000-08-25 | 2002-03-05 | Ishikawajima Harima Heavy Ind Co Ltd | Treating method for organic solid and treating device for organic solid |
| JP2002102870A (en) * | 2000-09-28 | 2002-04-09 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for treating organic resin waste such as coating material-containing waste liquid and coating material peeling liquid |
| JP2006192425A (en) * | 2004-12-16 | 2006-07-27 | Matsushita Electric Ind Co Ltd | Garbage treatment apparatus |
-
1995
- 1995-02-21 JP JP7055199A patent/JP2879199B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002066507A (en) * | 2000-08-25 | 2002-03-05 | Ishikawajima Harima Heavy Ind Co Ltd | Treating method for organic solid and treating device for organic solid |
| JP2002102870A (en) * | 2000-09-28 | 2002-04-09 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for treating organic resin waste such as coating material-containing waste liquid and coating material peeling liquid |
| JP2006192425A (en) * | 2004-12-16 | 2006-07-27 | Matsushita Electric Ind Co Ltd | Garbage treatment apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2879199B2 (en) | 1999-04-05 |
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