JP2003010868A - Apparatus for oxidation of organic waste water - Google Patents
Apparatus for oxidation of organic waste waterInfo
- Publication number
- JP2003010868A JP2003010868A JP2001197361A JP2001197361A JP2003010868A JP 2003010868 A JP2003010868 A JP 2003010868A JP 2001197361 A JP2001197361 A JP 2001197361A JP 2001197361 A JP2001197361 A JP 2001197361A JP 2003010868 A JP2003010868 A JP 2003010868A
- Authority
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- Japan
- Prior art keywords
- oxidation
- organic waste
- liquid
- waste liquid
- tower
- 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.)
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- Degasification And Air Bubble Elimination (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、有機物を含む有機
廃液を酸化する酸化処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oxidation treatment device for oxidizing organic waste liquid containing organic substances.
【０００２】[0002]
【従来の技術】例えば液晶製造時の廃液や、固形有機物
を水熱反応により液状化した処理液などのように、有機
物を含む有機廃液を処理する方法のひとつとして、酸化
処理がある。酸化処理は、有機物を含む水溶液に空気や
酸素等の酸化剤を導入して、有機物を分解する方法であ
る。この酸化処理では、亜臨界水条件下で有機廃液を白
金、パラジウムなどの酸化触媒に接触させることによ
り、反応速度を速めることができる。このような酸化処
理を行う酸化処理装置を、図３に示す。2. Description of the Related Art Oxidation treatment is one of the methods for treating organic waste liquid containing organic substances such as waste liquid during liquid crystal production and treatment liquid obtained by liquefying solid organic substances by hydrothermal reaction. The oxidation treatment is a method of introducing an oxidizing agent such as air or oxygen into an aqueous solution containing an organic substance to decompose the organic substance. In this oxidation treatment, the reaction rate can be increased by bringing the organic waste liquid into contact with an oxidation catalyst such as platinum or palladium under subcritical water conditions. FIG. 3 shows an oxidation treatment device for performing such an oxidation treatment.
【０００３】[0003]
【発明が解決しようとする課題】従来の酸化処理装置
は、図３に示すように、有機廃液を湿式の酸化触媒を備
えた酸化塔１００に通過させ、亜臨界水条件下で有機物
を水とＯ2、ＣＯ2などのガスに酸化する装置である。こ
の非循環式酸化処理装置によれば、高効率で有機廃液を
酸化処理することができる。しかし、処理される有機廃
液のＣＯＤ（化学的酸素要求量）が高すぎると、酸化熱
が高くなるために処理する有機廃液中の水分が蒸発し、
液と触媒との接触不良だけでなく、固形物が析出して触
媒に固着するなどによる酸化性能の低下の問題が生じ
る。このような事態を防ぐには、予め有機廃液に適度に
水を加えてから処理する、すなわち廃液の量に対するＣ
ＯＤを低くして酸化熱を抑えるか、あるいは処理段階で
の圧力をさらに高めて水分の蒸発を抑えるなどの方策が
必要となり、効率の低下や装置コスト増大、運転コスト
の増大を招いている。In the conventional oxidation treatment apparatus, as shown in FIG. 3, an organic waste liquid is passed through an oxidation tower 100 equipped with a wet oxidation catalyst to convert organic matter into water under subcritical water conditions. It is a device that oxidizes gas such as O 2 and CO 2 . According to this non-circulation type oxidation treatment device, the organic waste liquid can be oxidized with high efficiency. However, if the COD (chemical oxygen demand) of the organic waste liquid to be processed is too high, the heat of oxidation becomes high, so that the water in the organic waste liquid to be processed evaporates,
Not only is there poor contact between the liquid and the catalyst, but there is also the problem of a decrease in the oxidation performance due to the deposition of solid matter and sticking to the catalyst. In order to prevent such a situation, water is appropriately added to the organic waste liquid in advance before the treatment, that is, C is added to the amount of the waste liquid.
Measures such as lowering the OD to suppress the heat of oxidation, or further increasing the pressure in the treatment stage to suppress the evaporation of water are required, which leads to a decrease in efficiency, an increase in device cost, and an increase in operating cost.
【０００４】本発明は、このような課題の下になされた
もので、ＣＯＤの高い有機廃液であっても容易に効率よ
く酸化することができる酸化処理装置を提供することを
目的とする。The present invention has been made under the above problems, and an object thereof is to provide an oxidation treatment apparatus capable of easily and efficiently oxidizing an organic waste liquid having a high COD.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、請求項１に係る発明は、供給された有機廃液を亜臨
界水条件下で酸化して排出する酸化処理装置であって、
排出液の一部を供給側に戻して循環させる循環径路が形
成されることを特徴としている。この発明に係る有機廃
液の酸化処理装置は、図１に示すように、従来の非循環
式と同様に、湿式の酸化触媒を備えた酸化塔１０１を通
過させて、亜臨界水条件下で有機物を酸化するのである
が、有機廃液をポンプＰ０により循環させる循環径路１
０２を形成したことにより、酸化塔１０１を通過する有
機廃液の液量を多くすることができる。このような構成
を採用したことにより、本酸化処理装置では、非循環式
に比べて発生する酸化熱を抑えた処理が可能となる。ま
た、高温の液を循環するので、非循環方式で水を添加し
て液量を多くする場合と比べ、同じ液量でも所定の温度
まで加熱するのに必要な熱量を少なくできる。したがっ
てこの循環式の酸化処理装置では、非循環式の酸化処理
装置では処理しにくい高ＣＯＤの有機廃液を容易にかつ
少ない所要エネルギーで処理することができる。In order to solve the above-mentioned problems, the invention according to claim 1 is an oxidation treatment apparatus for oxidizing the supplied organic waste liquid under subcritical water conditions and discharging it.
It is characterized in that a circulation path is formed for returning a part of the discharged liquid to the supply side for circulation. As shown in FIG. 1, the apparatus for oxidizing an organic waste liquid according to the present invention passes through an oxidation tower 101 equipped with a wet oxidation catalyst as shown in FIG. Circulation path 1 for circulating the organic waste liquid by the pump P0
Since 02 is formed, the amount of the organic waste liquid passing through the oxidation tower 101 can be increased. By adopting such a configuration, in the present oxidation treatment device, it is possible to perform treatment with less heat of oxidation generated as compared with the non-circulation type. Further, since the high temperature liquid is circulated, the amount of heat required to heat to a predetermined temperature can be reduced even when the amount of liquid is increased by adding water in a non-circulation system to increase the amount of liquid. Therefore, in this circulation type oxidation treatment apparatus, it is possible to easily treat an organic waste liquid having a high COD, which is difficult to treat with a non-circulation type oxidation treatment apparatus, with a small amount of energy required.
【０００６】請求項２に係る発明は、供給された有機廃
液を亜臨界水条件下で酸化して排出する複数の酸化塔を
備え、この複数の酸化塔が上流側酸化塔と下流側酸化塔
とで構成される酸化処理装置において、循環径路を上流
側酸化塔に形成することを特徴としている。この発明に
係る有機廃液の酸化処理装置は、非循環方式の上流側で
循環方式による酸化処理を行うので、ＣＯＤの多い有機
廃液であっても発熱が小さく、かつ酸化性能の高い処理
が可能となる。The invention according to claim 2 is provided with a plurality of oxidation towers that oxidize and discharge the supplied organic waste liquid under subcritical water conditions, and the plurality of oxidation towers are an upstream oxidation tower and a downstream oxidation tower. In the oxidation treatment device constituted by, the circulation path is formed in the upstream oxidation tower. Since the organic waste liquid oxidation treatment device according to the present invention performs the oxidation treatment by the circulation system on the upstream side of the non-circulation system, even if the organic waste liquid has a large amount of COD, the heat generation is small and the treatment with high oxidation performance is possible. Become.
【０００７】請求項３に係る発明は、請求項２の酸化処
理装置において、上流側酸化塔と下流側酸化塔との間に
気液分離器を配置することを特徴としている。この発明
に係る有機廃液の酸化処理装置は、循環方式とワンスル
ー方式との中間部に気液分離器が配置されるので、液の
効率のよい循環および供給が可能になる。The invention according to claim 3 is characterized in that, in the oxidation treatment apparatus according to claim 2, a gas-liquid separator is arranged between the upstream oxidation tower and the downstream oxidation tower. In the organic waste liquid oxidation treatment apparatus according to the present invention, the gas-liquid separator is arranged at the intermediate portion between the circulation system and the one-through system, so that the liquid can be efficiently circulated and supplied.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施形態につい
て、図面を参照して説明する。図２は、本発明に係る有
機廃液の酸化処理装置を示すブロック図である。この酸
化処理装置は、ポンプＰ１によって供給された有機廃液
を亜臨界水条件下で酸化して排出する複数の酸化塔１０
を備える装置であって、この複数の酸化塔１０は上流側
酸化塔１０Ｕと下流側酸化塔１０Ｌとで構成され、上流
側酸化塔１０Ｕには、排出液の一部を供給側に戻して循
環させる循環径路２０が形成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an apparatus for oxidizing an organic waste liquid according to the present invention. This oxidation treatment device oxidizes a plurality of oxidation towers 10 that oxidize and discharge the organic waste liquid supplied by the pump P1 under subcritical water conditions.
The plurality of oxidation towers 10 are configured by an upstream oxidation tower 10U and a downstream oxidation tower 10L, and a part of the discharged liquid is returned to the supply side and circulated in the upstream oxidation tower 10U. A circulation path 20 is formed to allow the circulation.
【０００９】酸化塔１０は、湿式酸化触媒が充填される
とともに亜臨界水条件となるように加熱・加圧された内
部で、有機廃液を湿式触媒に接触させて空気酸化反応さ
せるものである。亜臨界水条件は、例えば二百数十℃、
４ＭＰａ程度で満たされる。空気酸化反応を速めるため
の触媒としては、ＣＯＤを低減するのに有効なものが処
理対象によって適宜に選択されて用いられ、例えば白金
属元素が好適に用いられる。[0009] The oxidation tower 10 is one in which an organic waste liquid is brought into contact with a wet catalyst to carry out an air oxidation reaction inside a wet oxidation catalyst filled and heated / pressurized so as to be in a subcritical water condition. Subcritical water conditions are, for example, two hundred and several tens of degrees Celsius,
It is filled with about 4 MPa. As a catalyst for accelerating the air oxidation reaction, a catalyst effective for reducing COD is appropriately selected and used depending on the treatment target, and for example, a white metal element is preferably used.
【００１０】なお、この酸化処理装置が水熱反応処理の
後段に配置されるのであれば、水熱反応後の高温高圧の
有機廃液が供給されるので、容易に亜臨界条件とするこ
とができる。If this oxidation treatment device is arranged in the latter stage of the hydrothermal reaction treatment, the organic waste liquid of high temperature and high pressure after the hydrothermal reaction is supplied, so that the subcritical condition can be easily established. .
【００１１】上流側酸化塔１０Ｕは、２基の酸化塔１０
を直列に配列している。なお、本実施形態では上流側酸
化塔１０Ｕは２基の酸化塔１０を用いているが、処理す
る廃液量や濃度などに応じて２基に限らず適宜設けられ
る。上流側酸化塔１０Ｕの排出側には気液分離器３０が
設置されていて、酸化塔１０から排出されるガスと液体
（排出液）とを分離して排出する。この気液分離器３０
のガス側にはバルブ４１が設けられ、液側には循環径路
２０が接続されている。循環径路２０はその途中にポン
プＰ２が設置され、上流側酸化塔１０Ｕの供給側に接続
されていて、上流側酸化塔１０Ｕの排出液の一部を供給
側に戻して循環させる。すなわち、上流側酸化塔１０Ｕ
と循環径路２０とにより、循環系が形成されている。The upstream oxidation tower 10U comprises two oxidation towers 10
Are arranged in series. Although the upstream oxidation tower 10U uses two oxidation towers 10 in the present embodiment, the number of the oxidation towers 10U is not limited to two, and may be appropriately provided depending on the amount and concentration of the waste liquid to be treated. A gas-liquid separator 30 is installed on the discharge side of the upstream oxidation tower 10U, and separates the gas discharged from the oxidation tower 10 and the liquid (exhaust liquid) and discharges them. This gas-liquid separator 30
A valve 41 is provided on the gas side and the circulation path 20 is connected to the liquid side. A pump P2 is installed in the middle of the circulation path 20 and is connected to the supply side of the upstream oxidation tower 10U, and a part of the discharged liquid of the upstream oxidation tower 10U is returned to the supply side for circulation. That is, the upstream oxidation tower 10U
A circulation system is formed by and the circulation path 20.
【００１２】また、気液分離器３０の液側には、バルブ
４０を介して酸化塔１０（下流側酸化塔１０Ｌ）が接続
されている。この下流側酸化塔１０Ｌの排出側には気液
分離器３１が設置されていて、酸化塔１０から排出され
るガスと液体とを分離して排出する。なお、本実施形態
では下流側酸化塔１０Ｌは１基の酸化塔１０を用いてい
るが、処理する廃液量や濃度などに応じて１基に限らず
適宜設けられる。The oxidation tower 10 (downstream oxidation tower 10L) is connected to the liquid side of the gas-liquid separator 30 via a valve 40. A gas-liquid separator 31 is installed on the discharge side of the downstream oxidation tower 10L, and separates gas and liquid discharged from the oxidation tower 10 and discharges them. In the present embodiment, the downstream oxidation tower 10L uses one oxidation tower 10, but the downstream oxidation tower 10L is not limited to one, and may be appropriately provided depending on the amount and concentration of the waste liquid to be treated.
【００１３】以上のように構成された有機廃液の酸化処
理装置による処理について説明する。まず、ポンプＰ１
から送出された有機廃液は、酸化剤を添加された後に予
熱器５０により予熱されて、上流側酸化塔１０Ｕに供給
される。上流側酸化塔１０Ｕでの酸化反応により、有機
廃液はＣＯ2、Ｏ2などの処理気体およびＣＯＤの低い排
出液に処理され、気液分離器３０にて気液分離されて排
出される。処理気体はバルブ４１により圧力制御されて
排出される一方、排出液の一部はバルブ４０により所定
量を抜き出されて酸化剤を注入されて下流側酸化塔１０
Ｌに供給され、残りはポンプＰ２により循環径路２０を
通じて上流側酸化塔１０Ｕの供給側に循環される。な
お、酸化剤は予熱器５０の下流にて添加しても良い。The treatment of the organic waste liquid by the oxidation treatment apparatus constructed as described above will be explained. First, the pump P1
The organic waste liquid sent from is preheated by the preheater 50 after being added with the oxidizing agent, and is supplied to the upstream oxidation tower 10U. Due to the oxidation reaction in the upstream oxidation tower 10U, the organic waste liquid is processed into a processing gas such as CO 2 and O 2 and an exhaust liquid having a low COD, and is gas-liquid separated by the gas-liquid separator 30 and discharged. The processing gas is pressure-controlled and discharged by the valve 41, while a predetermined amount of a part of the discharged liquid is extracted by the valve 40 and the oxidizing agent is injected to the downstream side oxidation tower 10.
It is supplied to L and the rest is circulated to the supply side of the upstream oxidation tower 10U through the circulation path 20 by the pump P2. The oxidizing agent may be added downstream of the preheater 50.
【００１４】排出液のうち、上流側酸化塔１０Ｕの供給
側に循環させる量と下流側酸化塔１０Ｌに供給する量
は、処理対象や上流側酸化塔１０Ｕおよび下流側酸化塔
１０Ｌの処理能力などに応じて適宜決定される。上流側
酸化塔１０Ｕには、下流側酸化塔１０Ｌに供給する量す
なわち循環系から抜き出される量に応じて、ポンプＰ１
により有機廃液が供給される。Of the discharged liquid, the amount to be circulated to the supply side of the upstream side oxidation tower 10U and the amount to be supplied to the downstream side oxidation tower 10L are the objects to be treated and the processing capacity of the upstream side oxidation tower 10U and the downstream side oxidation tower 10L. It is appropriately determined according to The pump P1 is supplied to the upstream oxidation tower 10U according to the amount supplied to the downstream oxidation tower 10L, that is, the amount extracted from the circulation system.
The organic waste liquid is supplied by.
【００１５】下流側酸化塔１０Ｌに供給された排出液
は、下流側酸化塔１０Ｌでの酸化反応によりさらにガス
およびＣＯＤの低い液体に処理されて気液分離器３１に
て気液分離されて排出される。気液分離器３１内のガス
はバルブ４３により圧力制御されて所定圧力を超えると
排出され、気液分離器３１内の液体はバルブ４２により
レベル制御されて排出される。なお、この気液分離器３
１を設けずに、気液２相流の状態でバルブにより圧力制
御して排出してもよい。The discharged liquid supplied to the downstream oxidation tower 10L is further processed into a liquid having a lower gas and COD by an oxidation reaction in the downstream oxidation tower 10L, and is separated into gas and liquid by a gas-liquid separator 31 and discharged. To be done. The gas in the gas-liquid separator 31 is pressure-controlled by the valve 43 and discharged when the pressure exceeds a predetermined pressure, and the liquid in the gas-liquid separator 31 is level-controlled by the valve 42 and discharged. In addition, this gas-liquid separator 3
Instead of providing No. 1, the pressure may be controlled by a valve in the gas-liquid two-phase flow to discharge the gas.
【００１６】すなわち、この酸化処理装置では、供給さ
れた有機廃液を、処理液量の多く酸化熱による蒸発の少
ない循環系（上流側酸化塔１０Ｕ）にて酸化処理した
後、ＣＯＤの少ない液を酸化性能の高い非循環方式（下
流側酸化塔１０Ｌ）にて酸化処理するので、ＣＯＤの多
い有機廃液であっても高い酸化性能で処理することがで
きる。That is, in this oxidation treatment apparatus, the supplied organic waste liquid is subjected to oxidation treatment in a circulation system (upstream oxidation tower 10U) which has a large amount of treatment liquid and is less evaporated by the heat of oxidation, and then a liquid with less COD is removed. Since the oxidation treatment is performed by the non-circulation system (downstream oxidation tower 10L) having a high oxidation performance, even an organic waste liquid containing a large amount of COD can be treated with a high oxidation performance.
【００１７】なお、前記実施形態において示した各構成
部材の諸形状や組み合わせ等は一例であって、本発明の
趣旨から逸脱しない範囲において設計要求等に基づき種
々変更可能である。図示のものでは循環系の下流側にワ
ンスルー系を配置したが、その逆に配置するような構成
であってもよい。The shapes and combinations of the constituent members shown in the above embodiment are merely examples, and various modifications can be made based on design requirements without departing from the spirit of the present invention. Although the one-through system is arranged on the downstream side of the circulation system in the drawing, it may be arranged in the opposite direction.
【００１８】[0018]
【発明の効果】以上説明したように、請求項１に係る有
機廃液の酸化処理装置は、出口側の高温の有機廃液を循
環させて酸化塔に通過させるので、少ない所要エネルギ
ーで、通過液量を増やして、蒸発を抑えることができ、
高ＣＯＤの有機廃液も酸化処理が可能となる。As described above, the apparatus for oxidizing an organic waste liquid according to the first aspect circulates the high temperature organic waste liquid on the outlet side and passes it through the oxidation tower. To reduce evaporation,
Oxidation treatment is also possible for organic waste liquids with high COD.
【００１９】請求項２に係る有機廃液の酸化処理装置で
は、まず上流側で循環方式による酸化処理を行うため、
循環方式の酸化処理により発熱の問題なく処理を行うこ
とができる。続いて非循環方式で、循環方式によりＣＯ
Ｄの低下した廃液を酸化処理するので、酸化熱による蒸
発が少なくかつ高効率の処理が可能となる。さらに、蒸
発が少ないので有機廃液の蒸発を抑えるために高圧にす
る必要がないため、装置各部の耐圧を低くでき、装置コ
ストや運転コストの削減が実現される。In the organic waste liquid oxidation treatment apparatus according to the second aspect, first, since the oxidation treatment by the circulation system is performed on the upstream side,
The circulation type oxidation treatment can be performed without the problem of heat generation. Then, in the non-circulation method, the CO
Since the waste liquid with reduced D is subjected to the oxidation treatment, the evaporation due to the heat of oxidation is small and the treatment can be performed with high efficiency. Furthermore, since there is little evaporation, it is not necessary to increase the pressure to suppress the evaporation of the organic waste liquid, so that the withstand pressure of each part of the device can be lowered, and the device cost and the operating cost can be reduced.
【００２０】請求項３に係る有機廃液の酸化処理装置で
は、上流側酸化塔と下流側酸化塔との部に気液分離器が
配置されるため、下流側の酸化塔に供給される液にガス
が混入せず、また上流側が循環方式である場合には供給
側に戻される液にガスが混入しないので、効率のよい供
給および循環ならびに効率のよい酸化処理が実現され
る。In the organic waste liquid oxidation treatment apparatus according to the third aspect of the present invention, since the gas-liquid separator is arranged at the portion between the upstream oxidation tower and the downstream oxidation tower, the liquid supplied to the downstream oxidation tower is Gas is not mixed, and when the upstream side is a circulation system, gas is not mixed in the liquid returned to the supply side, so that efficient supply and circulation and efficient oxidation treatment are realized.
【図１】 本発明に係る有機廃液の酸化処理装置の一実
施形態を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of an organic waste liquid oxidation treatment apparatus according to the present invention.
【図２】 本発明に係る循環式の酸化処理装置を示すブ
ロック図である。FIG. 2 is a block diagram showing a circulation-type oxidation treatment device according to the present invention.
【図３】 従来の非循環式酸化処理装置を示すブロック
図である。FIG. 3 is a block diagram showing a conventional non-circulation type oxidation treatment device.
１０、１０１ 酸化塔 １０Ｕ 上流側酸化塔 １０Ｌ 下流側酸化塔 ２０、１０２ 循環径路 ３０、３１ 気液分離器 ４０、４１、４２、４３ バルブ ５０ 予熱器 Ｐ０、Ｐ１、Ｐ２ ポンプ 10, 101 oxidation tower 10U upstream oxidation tower 10L downstream oxidation tower 20, 102 Circulation path 30, 31 gas-liquid separator 40, 41, 42, 43 valves 50 preheater P0, P1, P2 pumps
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０２Ｆ 1/20 Ｃ０２Ｆ 1/20 Ａ ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C02F 1/20 C02F 1/20 A
Claims (3)
酸化して排出する酸化処理装置であって、 排出液の一部を供給側に戻して循環させる循環径路が形
成されることを特徴とする有機廃液の酸化処理装置。1. An oxidation treatment apparatus which oxidizes and discharges the supplied organic waste liquid under subcritical water conditions, wherein a circulation path is formed for returning a part of the discharged liquid to the supply side for circulation. Characteristic organic waste liquid oxidation treatment device.
複数の酸化塔は上流側酸化塔と下流側酸化塔とで構成さ
れ、前記循環径路が前記上流側酸化塔に形成されること
を特徴とする請求項１記載の有機廃液の酸化処理装置。2. An apparatus comprising a plurality of oxidation towers, wherein the plurality of oxidation towers comprises an upstream oxidation tower and a downstream oxidation tower, and the circulation path is formed in the upstream oxidation tower. An apparatus for oxidizing an organic waste liquid according to claim 1, characterized in that:
に気液分離器を配置することを特徴とする請求項２記載
の有機廃液の酸化処理装置。3. The apparatus for oxidizing treatment of organic waste liquid according to claim 2, wherein a gas-liquid separator is arranged between the upstream oxidation tower and the downstream oxidation tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001197361A JP2003010868A (en) | 2001-06-28 | 2001-06-28 | Apparatus for oxidation of organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001197361A JP2003010868A (en) | 2001-06-28 | 2001-06-28 | Apparatus for oxidation of organic waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003010868A true JP2003010868A (en) | 2003-01-14 |
Family
ID=19034980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001197361A Pending JP2003010868A (en) | 2001-06-28 | 2001-06-28 | Apparatus for oxidation of organic waste water |
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| Country | Link |
|---|---|
| JP (1) | JP2003010868A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007268473A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material using hydrogen |
| JP2007268475A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material |
| JP2007268474A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material using hydrogen |
| JP2021079345A (en) * | 2019-11-20 | 2021-05-27 | 清水 幹治 | Apparatus and method of subcritical or supercritical continuous processing of organic substance |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117272A (en) * | 1998-10-16 | 2000-04-25 | Osaka Gas Co Ltd | Waste water treatment |
-
2001
- 2001-06-28 JP JP2001197361A patent/JP2003010868A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117272A (en) * | 1998-10-16 | 2000-04-25 | Osaka Gas Co Ltd | Waste water treatment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007268473A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material using hydrogen |
| JP2007268475A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material |
| JP2007268474A (en) * | 2006-03-31 | 2007-10-18 | Osaka Gas Co Ltd | Method for treating wastewater containing organic material using hydrogen |
| JP2021079345A (en) * | 2019-11-20 | 2021-05-27 | 清水 幹治 | Apparatus and method of subcritical or supercritical continuous processing of organic substance |
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