JPH01307494A - Device for treating waste water by wet oxidation - Google Patents
Device for treating waste water by wet oxidationInfo
- Publication number
- JPH01307494A JPH01307494A JP13843088A JP13843088A JPH01307494A JP H01307494 A JPH01307494 A JP H01307494A JP 13843088 A JP13843088 A JP 13843088A JP 13843088 A JP13843088 A JP 13843088A JP H01307494 A JPH01307494 A JP H01307494A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- wet oxidation
- wastewater
- liquid
- treatment
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 35
- 238000009279 wet oxidation reaction Methods 0.000 title claims abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims description 17
- 238000004065 wastewater treatment Methods 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 16
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 229910021529 ammonia Inorganic materials 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 6
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- 239000010842 industrial wastewater Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000012476 oxidizable substance Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は産業廃水、下水など有機性成分と窒素成分とを
含む廃水を高温高圧状態で湿式酸化処理する湿式酸化廃
水処理装置に関するものである。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to wet oxidation wastewater treatment in which industrial wastewater, sewage, and other wastewater containing organic components and nitrogen components are subjected to wet oxidation treatment under high temperature and high pressure conditions. It is related to the device.
（従来の技術）
各種産業廃水、−股下水などの廃水中には有機性成分と
窒素成分との両者を含んだものが多く、海、河川、湖沼
などの水質汚染を招く原因となっている。(Conventional technology) Many types of industrial wastewater, such as sewage water, contain both organic components and nitrogen components, which cause water pollution in oceans, rivers, lakes, etc. .
廃水中の有機性成分は一般にＢＯＤ、Ｃ：ＯＤで表わさ
れ、窒素成分はアンモニア性窒素、硝酸性窒素、亜硝酸
性窒素などを含むが主体はアンモニア性窒素である。Organic components in wastewater are generally expressed as BOD and C:OD, and nitrogen components include ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, etc., but the main component is ammonia nitrogen.
廃水中の有機性成分と窒素成分の処理には活性汚泥処理
および生物化学的脱窒処理が広く適用されているが、近
年は高濃度廃水を対象とした湿式酸化廃水処理装置が使
用されてきている。Activated sludge treatment and biochemical denitrification treatment are widely used to treat organic and nitrogen components in wastewater, but in recent years wet oxidation wastewater treatment equipment has been used for high concentration wastewater. There is.
湿式酸化廃水処理装置は廃水中の被酸化性物質を２００
〜３００℃という高温で、かつ廃水がその温度で液相を
保つのに十分な圧力をかけて完全に酸化分解するもので
あり、この湿式酸化廃水処理装置は産業廃水、下水の処
理だけでなく、汚泥処理にも適用されている。Wet oxidation wastewater treatment equipment reduces oxidizable substances in wastewater to 200%
It completely oxidizes and decomposes the wastewater at a high temperature of ~300℃ and with enough pressure to maintain the liquid phase at that temperature.This wet oxidation wastewater treatment equipment is not only used for industrial wastewater and sewage treatment. It is also applied to sludge treatment.
（発明が解決しようとする課題）
湿式酸化廃水処理装置は廃水中の有機性成分を酸化分解
するのには効率的であるが、窒素成分は分解されにくく
未処理のまま残留する。(Problems to be Solved by the Invention) Although wet oxidation wastewater treatment equipment is efficient in oxidatively decomposing organic components in wastewater, nitrogen components are difficult to decompose and remain untreated.
従って湿式酸化処理装置を出た処理液を常温まで下げて
生物学的脱窒処理を行ったり、アルカリ剤を添加してｐ
Ｈ１０以上で曝気し、気体中へアンモニアを移動させる
アンモニアストリッピング処理を行うなどの必要がある
。Therefore, biological denitrification treatment is performed by lowering the treatment liquid that exits the wet oxidation treatment equipment to room temperature, or by adding an alkaline agent to reduce the
It is necessary to aerate at H10 or higher and perform an ammonia stripping process to move ammonia into the gas.
生物学的脱窒処理を併用すると装置の設置スペースが大
きくなり、脱窒のための微生物の維持管理に高級技術を
必要とするばかりでなく、廃水の種類と濃度変化に応じ
て処理条件を変更しなければならないという問題がある
。When combined with biological denitrification treatment, the installation space for the equipment becomes large, and advanced technology is required to maintain and manage the microorganisms for denitrification, and treatment conditions are changed depending on the type and concentration of wastewater. The problem is that you have to do it.
また、アンモニアストリッピング処理では処理液を１１
０以上にするためのアルカリ剤が必要であり、さらにこ
れを排出するためには酸を添加して中和する必要がある
などの問題がある。In addition, in the ammonia stripping treatment, the treatment liquid was
Problems include the need for an alkaline agent to bring the temperature to 0 or higher, and the need to neutralize it by adding acid to discharge it.
本発明は産業廃水、下水などの廃水中に含まれる有機性
成分と窒素成分の両者を効率的に分解処理できる合理的
な湿式酸化廃水処理装置を提供することを目的としてい
る。An object of the present invention is to provide a rational wet oxidation wastewater treatment device that can efficiently decompose both organic components and nitrogen components contained in wastewater such as industrial wastewater and sewage.
（課題を解決するための手段と作用）
本発明は産業廃水、下水などの廃水を高温高圧状態で湿
式酸化処理する湿式酸化廃水処理装置であり、廃水中の
有機性成分を酸化分解する湿式酸化反応塔と、湿式酸化
反応塔からの高温高圧状態の気液混合物を液体と気体と
に分離すると共に液体の一部を蒸気として気体とともに
排出できる気液分離塔とを備えている。(Means and effects for solving the problems) The present invention is a wet oxidation wastewater treatment device that performs wet oxidation treatment on wastewater such as industrial wastewater and sewage under high temperature and high pressure conditions. It is equipped with a reaction tower and a gas-liquid separation tower that can separate a high-temperature, high-pressure gas-liquid mixture from the wet oxidation reaction tower into liquid and gas, and discharge part of the liquid as vapor together with gas.
さらに気液分離塔から排出される気体中の窒素成分を処
理する触媒を充填した窒素成分処理塔を追加して構成す
ることができる６
昇圧された廃水と空気とは熱交換器および加熱器によっ
て酸化処理に適した温度まで昇温されて湿式酸化反応塔
に供給され、空気中の酸素を利用して廃水中の有機性成
分が高温高圧下で液状のまま炭酸ガスまで湿式酸化処理
される。Furthermore, a nitrogen component treatment tower filled with a catalyst for treating nitrogen components in the gas discharged from the gas-liquid separation tower can be added and configured.6 Pressurized wastewater and air are separated by a heat exchanger and a heater The temperature is raised to a temperature suitable for oxidation treatment, and the wastewater is supplied to a wet oxidation reaction tower, where the organic components in the wastewater are wet-oxidized to carbon dioxide while remaining in liquid form under high temperature and high pressure using oxygen in the air.
湿式酸化反応塔ではアンモニアを主体とした窒素成分は
未処理のまま液体中に残留するが、未処理窒素成分を含
む気液混合物は高温高圧のまま気液分離塔に送られて液
体と気体に分離されると共に、液体の一部は蒸気として
気体と共に排出され。In the wet oxidation reaction tower, the nitrogen components, mainly ammonia, remain untreated in the liquid, but the gas-liquid mixture containing the untreated nitrogen components is sent to the gas-liquid separation tower at high temperature and pressure, where it is separated into liquid and gas. As it is separated, a portion of the liquid is discharged as vapor along with the gas.
気体と蒸気中に未処理の窒素成分が移動する。Untreated nitrogen components are transferred into the gas and steam.
この窒素成分を含む気体と蒸気は窒素成分処理塔に送ら
れ、触媒と酸素とによって乾式酸化処理され、窒素成分
が無公害な窒素ガスに分Ｈされる。The gas and steam containing this nitrogen component are sent to a nitrogen component treatment tower, where they are subjected to dry oxidation treatment using a catalyst and oxygen, and the nitrogen component is separated into non-polluting nitrogen gas.
本発明の一実施例を同順に示す。An embodiment of the present invention will be shown in the same order.
＄１図機において、廃水配管１は昇圧ポンプ２を経て熱
交換器３の供給配管４に接続され、同様に空気配管５は
高圧ブロワ６を経て熱交換器３の供給配管４に接続され
ている。In the $1 machine, the waste water pipe 1 is connected to the supply pipe 4 of the heat exchanger 3 via a boost pump 2, and the air pipe 5 is similarly connected to the supply pipe 4 of the heat exchanger 3 via a high pressure blower 6. There is.
熱交換器３の出口配管７は加熱器８を経て湿式酸化反応
塔９に接続され、湿式酸化反応塔９の出口配管ｌＯは気
液分離塔１１に接続され、さらに気液分離塔１１の処理
水出口配管１２は熱交換器３を通り処理水配管１３に接
続されている。The outlet pipe 7 of the heat exchanger 3 is connected to the wet oxidation reaction tower 9 via the heater 8, and the exit pipe 1O of the wet oxidation reaction tower 9 is connected to the gas-liquid separation tower 11, and further connected to the gas-liquid separation tower 11 for processing. The water outlet pipe 12 passes through the heat exchanger 3 and is connected to the treated water pipe 13.
一方、気液分離塔１１の気体側配管１４は触媒１５が充
填された窒素成分処理塔１６に接続され、その出口配管
１７は冷却器１８を経て処理水配管１９と排気管２０と
に接続されている。On the other hand, the gas side pipe 14 of the gas-liquid separation tower 11 is connected to a nitrogen component treatment tower 16 filled with a catalyst 15, and its outlet pipe 17 is connected to a treated water pipe 19 and an exhaust pipe 20 via a cooler 18. ing.
上記の構成により、昇圧ポンプ２で５〜１００気圧に昇
圧された廃水は、高圧ブロワ６で廃水と同程度の圧力で
圧入された空気と共に熱交換器３に供給され、気液分離
塔１１を出た高温状態の処理水によって昇温され、さら
に加熱器８によって湿式酸化反応塔９内で湿式酸化処理
されるに適した温度まで昇温される。With the above configuration, wastewater whose pressure has been boosted to 5 to 100 atmospheres by the pressure booster pump 2 is supplied to the heat exchanger 3 together with air that is pressurized at a pressure similar to that of the wastewater by the high-pressure blower 6, and is then passed through the gas-liquid separation column 11. The temperature is raised by the discharged high-temperature treated water, and further raised by the heater 8 to a temperature suitable for wet oxidation treatment in the wet oxidation reaction tower 9.
適切な温度まで昇温された廃水は、湿式酸化反応塔９内
で、廃水とともに送られてきた空気中の酸素によって有
機性成分が炭酸ガスに酸化分解される。最適な処理温度
は廃水の種類によって異なるが、１５０〜３００℃が一
般的である。After the temperature of the wastewater has been raised to an appropriate temperature, the organic components of the wastewater are oxidized and decomposed into carbon dioxide in the wet oxidation reaction tower 9 by oxygen in the air that is sent together with the wastewater. The optimum treatment temperature varies depending on the type of wastewater, but is generally 150 to 300°C.
有機性成分は湿式酸化反応塔９で処理されるが、アンモ
ニアを主体とした窒素成分は未処理のまま気液分離塔１
１に送られ、流入した気液混合物が気体と液体とに分離
される。The organic components are treated in the wet oxidation reaction tower 9, but the nitrogen components mainly consisting of ammonia are left untreated in the gas-liquid separation tower 1.
1, and the incoming gas-liquid mixture is separated into gas and liquid.
気液分離塔１１には高温高圧状態の気液混合物が流入す
るので、気体側配管１４からは気体と共に蒸気も排出さ
れる。本発明者らは気液混合物中に含まれる未処理の窒
素成分の９０％以上が気体と蒸気に移行することを確認
した。Since a high-temperature, high-pressure gas-liquid mixture flows into the gas-liquid separation tower 11, steam is also discharged from the gas-side pipe 14 along with the gas. The present inventors have confirmed that more than 90% of the untreated nitrogen component contained in the gas-liquid mixture is transferred to gas and steam.
このアンモニアを主体とした未処理の窒素成分を含む気
体と蒸気は気体側配管１４を通って窒素成分処理塔１６
に送られ、触媒１５と酸素とによって窒素成分が１００
〜３００℃の高温で乾式酸化処理され、窒素成分は無公
害な窒素ガスに分解される。This gas and steam containing untreated nitrogen components mainly composed of ammonia pass through the gas side pipe 14 to the nitrogen component treatment tower 16.
The nitrogen component is reduced to 100% by the catalyst 15 and oxygen.
Dry oxidation treatment is performed at a high temperature of ~300°C, and the nitrogen component is decomposed into non-polluting nitrogen gas.
本発明らは窒素成分処理塔１６では未処理の窒素成分の
９５％以上が窒素ガスに分解されていることを確認した
。The present inventors confirmed that 95% or more of the untreated nitrogen component was decomposed into nitrogen gas in the nitrogen component treatment tower 16.
触媒１５としては白金、パラジウム、鉄、コバルト、ニ
ッケル、イリジウム、金、銀、銅、マンガンなどの金属
酸化物、またはこれら金属の担持触媒が使用可能である
。As the catalyst 15, metal oxides such as platinum, palladium, iron, cobalt, nickel, iridium, gold, silver, copper, and manganese, or supported catalysts of these metals can be used.
窒素成分処理塔１６で処理された気体と蒸気は冷却器１
８で冷却されて常温常圧に戻り、液体は処理水配管１９
から排出され、気体は排気管２０から排気される。The gas and steam treated in the nitrogen component treatment tower 16 are transferred to the cooler 1
8, the liquid returns to normal temperature and pressure, and the liquid is transferred to the treated water pipe 19.
The gas is exhausted from the exhaust pipe 20.
この排気中には供給された空気中に含まれる窒素、酸素
ガスなどの未反応分と、反応により生成された炭酸ガス
および窒素ガスが含まれている。This exhaust gas contains unreacted nitrogen and oxygen gas contained in the supplied air, as well as carbon dioxide and nitrogen gas produced by the reaction.
また廃水中に各種気体が含まれている場合は、窒素成分
と同様に窒素成分処理塔１６で無公害化され、従って排
気管２０からは無公害化された気体しか排出されない。Further, if various gases are contained in the wastewater, they are made non-polluting in the nitrogen component treatment tower 16 in the same way as nitrogen components, and therefore only non-polluting gases are discharged from the exhaust pipe 20.
上記の実施例では気液分離塔１１から気体側配管１４を
通して気体と蒸気を排出させる時に温度が低下し、蒸気
量によっては窒素成分処理塔１６での最適処理温度以下
まで下ることがある。In the above embodiment, the temperature decreases when gas and steam are discharged from the gas-liquid separation tower 11 through the gas side pipe 14, and depending on the amount of steam, the temperature may drop to below the optimum processing temperature in the nitrogen component treatment tower 16.
この場合には、気液分離塔１１に加熱器を付設したり、
気液分離塔１１内の液温よりも高温の蒸気を供給する蒸
気供給器を付設することで蒸気発生による温度低下を防
ぐことができる。また、窒素成分処理塔１６に加熱器を
付設して処理効率を高めることができる。In this case, a heater may be attached to the gas-liquid separation tower 11, or
By providing a steam supply device that supplies steam at a higher temperature than the liquid temperature in the gas-liquid separation tower 11, it is possible to prevent a temperature drop due to steam generation. Additionally, a heater can be attached to the nitrogen component treatment tower 16 to increase treatment efficiency.
加熱器８は熱交換器３による昇温の不足分を補うもので
あり運転開始時には不可欠であるが、高濃度の有機性成
分を含む廃水を処理する場合には湿式酸化反応塔９での
発熱量が大きいので加熱器８を停止できることがあり、
例えばＣＯＤが１１００００ｔａ／Ｑ以上の廃水ではこ
のような運転が可能である。The heater 8 compensates for the temperature increase caused by the heat exchanger 3 and is essential at the start of operation. Because the amount is large, it may be possible to stop the heater 8.
For example, such operation is possible for wastewater with a COD of 110,000 ta/Q or more.
以上の説明は廃水の処理について行ったが、汚泥の処理
についても同様に本発明の適用が可能である。Although the above explanation has been made regarding the treatment of wastewater, the present invention can be similarly applied to the treatment of sludge.
以上説明したように本発明の湿式酸化廃水処理装置によ
れば、湿式酸化反応塔において高温高圧状態で空気中の
酸素を利用し廃水中の有機性成分を炭酸ガスまで酸化分
解し、次に未処理のアンモニアを主体とした窒素成分が
残存する気液混合液を高温高圧のまま気液分離塔に送っ
ているので、未処理の窒素成分を気液分離塔から排出さ
れる気体と蒸気中に効率よく移動させることができる。As explained above, according to the wet oxidation wastewater treatment apparatus of the present invention, organic components in wastewater are oxidized and decomposed into carbon dioxide gas at high temperature and high pressure in the wet oxidation reaction tower, and then the organic components in wastewater are decomposed into carbon dioxide. The treated gas-liquid mixture containing residual nitrogen components, mainly ammonia, is sent to the gas-liquid separation tower at high temperature and pressure, so untreated nitrogen components are absorbed into the gas and steam discharged from the gas-liquid separation tower. It can be moved efficiently.
さらに未処理の窒素成分を含む気体と蒸気は窒素成分処
理塔において、触媒と酸素による乾式酸化により窒素成
分を窒素ガスに分解することができる。Furthermore, the untreated nitrogen-containing gas and steam can be decomposed into nitrogen gas by dry oxidation using a catalyst and oxygen in a nitrogen component treatment tower.
従って本発明によれば、廃水中の有機性成分と窒素成分
の両者を無公害な状態まで処理できる合理的な湿式酸化
廃水処理装置が得られる。Therefore, according to the present invention, a rational wet oxidation wastewater treatment apparatus can be obtained that can treat both organic components and nitrogen components in wastewater to a non-polluting state.
斗１図該は本発明による湿式酸化廃水処理装置の一実施
例を示す系統図である。
１・・・廃水配管 ２・・・昇圧ポンプ３・・・
熱交換器 ４・・・供給配管５・・・空気配管
６・・・高圧ブロワ７、１０．１７・・・出口配
管 ８・・・加熱器９・・・湿式酸化反応塔 １１
・・・気液分離塔１２・・・処理水出口配管 １３．
１９・・・処理水配管１４・・・気体側配管 １５
・・・触媒１６・・・窒素成分処理塔 １８・・・冷
却器２０・・・排気管
代理人 弁理士 則 近 憲 佑
同 山王 −Figure 1 is a system diagram showing an embodiment of the wet oxidation wastewater treatment apparatus according to the present invention. 1...Wastewater piping 2...Boost pump 3...
Heat exchanger 4... Supply piping 5... Air piping
6... High pressure blower 7, 10.17... Outlet piping 8... Heater 9... Wet oxidation reaction tower 11
... Gas-liquid separation tower 12 ... Treated water outlet piping 13.
19... Treated water piping 14... Gas side piping 15
...Catalyst 16...Nitrogen component treatment tower 18...Cooler 20...Exhaust pipe agent Patent attorney Nori Chika Ken Yudo Sanno −
Claims (2)
酸化廃水処理装置において、廃水中の有機性成分を高温
高圧下で酸化分解する湿式酸化反応塔と、この酸化反応
塔から出た高温高圧状態の気液混合物を気体と液体とに
分離すると共に液体の一部を蒸気として気体と共に排出
する気液分離塔を備えたことを特徴とする湿式酸化廃水
処理装置。(1) In a wet oxidation wastewater treatment device that processes wastewater under high temperature and high pressure conditions, there is a wet oxidation reaction tower that oxidizes and decomposes organic components in the wastewater under high temperature and high pressure, and a high temperature and high pressure output from the oxidation reaction tower. A wet oxidation wastewater treatment apparatus comprising a gas-liquid separation tower that separates a gas-liquid mixture into gas and liquid and discharges a part of the liquid as vapor together with the gas.
体と蒸気との混合物を処理する触媒が充填された窒素成
分処理塔をさらに備えた特許請求の範囲第１項記載の湿
式酸化廃水処理装置。(2) Wet oxidation wastewater according to claim 1, further comprising a nitrogen component treatment tower filled with a catalyst for treating the mixture of gas and steam containing nitrogen components discharged from the gas-liquid separation tower. Processing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13843088A JPH01307494A (en) | 1988-06-07 | 1988-06-07 | Device for treating waste water by wet oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13843088A JPH01307494A (en) | 1988-06-07 | 1988-06-07 | Device for treating waste water by wet oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01307494A true JPH01307494A (en) | 1989-12-12 |
Family
ID=15221787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13843088A Pending JPH01307494A (en) | 1988-06-07 | 1988-06-07 | Device for treating waste water by wet oxidation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01307494A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586584A (en) * | 1978-12-22 | 1980-06-30 | Osaka Gas Co Ltd | Wet oxidizing treatment of waste water |
| JPS58109122A (en) * | 1982-08-09 | 1983-06-29 | Takeda Chem Ind Ltd | Vapor phase decomposing method for ammonia |
-
1988
- 1988-06-07 JP JP13843088A patent/JPH01307494A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5586584A (en) * | 1978-12-22 | 1980-06-30 | Osaka Gas Co Ltd | Wet oxidizing treatment of waste water |
| JPS58109122A (en) * | 1982-08-09 | 1983-06-29 | Takeda Chem Ind Ltd | Vapor phase decomposing method for ammonia |
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