JPS6348573B2 - - Google Patents
Info
- Publication number
- JPS6348573B2 JPS6348573B2 JP60038786A JP3878685A JPS6348573B2 JP S6348573 B2 JPS6348573 B2 JP S6348573B2 JP 60038786 A JP60038786 A JP 60038786A JP 3878685 A JP3878685 A JP 3878685A JP S6348573 B2 JPS6348573 B2 JP S6348573B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- adsorbent
- volatile organic
- chlorine compounds
- organic chlorine
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000003463 adsorbent Substances 0.000 claims description 19
- 150000004045 organic chlorine compounds Chemical class 0.000 claims description 17
- 230000008929 regeneration Effects 0.000 claims description 11
- 238000011069 regeneration method Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 description 11
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 9
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 9
- 229950011008 tetrachloroethylene Drugs 0.000 description 9
- 230000001172 regenerating effect Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000711 cancerogenic effect Effects 0.000 description 2
- 231100000315 carcinogenic Toxicity 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Physical Water Treatments (AREA)
- Removal Of Specific Substances (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はトリクロロエチレン、テトラクロロエ
チレン等の発ガン性のある揮発性有機塩素化合物
を含む上水、用水、廃水等の処理で利用するスト
リツピング過程で排気される排ガスの処理方法に
関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention applies to exhaust gas in the stripping process used in the treatment of clean water, municipal water, wastewater, etc. containing carcinogenic volatile organic chlorine compounds such as trichlorethylene and tetrachlorethylene. The present invention relates to a method for treating exhaust gas.
近年、トリクロロエチレン、テトラクロロエチ
レン等の発ガン性のある揮発性有機塩素化合物に
よる環境汚染が問題となつており、汚染源は、ド
ライクリーニング用脱脂剤や、金属工業、電子産
業等の洗浄廃水に起因するといわれている。
In recent years, environmental pollution caused by carcinogenic volatile organic chlorine compounds such as trichlorethylene and tetrachlorethylene has become a problem, and the source of the pollution is said to be from dry cleaning degreasers and cleaning wastewater from the metal and electronic industries. ing.
水中に含まれるこれら揮発性有機塩素化合物
は、ストリツピングを行うことによつて水中から
容易に除去することができるが、ストリツピング
で排気される排ガス中に揮発性有機塩素化合物が
移行し、この排ガスを未処理のまま大気中に放散
すると、再び新たな環境汚染の原因となるところ
から、吸着剤によつて排ガスを吸着処理し、無害
化することが一般的に考えられる。 These volatile organic chlorine compounds contained in water can be easily removed from the water by stripping, but the volatile organic chlorine compounds migrate into the exhaust gas exhausted by stripping, and this exhaust gas If it is released into the atmosphere without being treated, it may cause new environmental pollution, so it is generally considered that the exhaust gas is adsorbed using an adsorbent to render it harmless.
しかしながら、前記排ガスの吸着処理は、比較
的確実な方法であるが、対象成分濃度が一般に数
十mg／Ｎm3以下と極めて低濃度であるために、吸
着容量が数％（WT）以下と小さく、また再生時
に排出される使用済再生剤中の脱着された成分の
処理も必要となり、処理操作は煩雑であり、全体
のランニングコストも高くなる点が問題であつ
た。
However, although the above-mentioned adsorption treatment of exhaust gas is a relatively reliable method, the concentration of target components is generally extremely low, less than several tens of mg/ Nm3 , so the adsorption capacity is small, less than a few percent (WT). In addition, it is necessary to treat the desorbed components in the used regenerating agent discharged during regeneration, which is a problem in that the treatment operation is complicated and the overall running cost is high.
本発明は、揮発性有機塩素化合物を含む上水、
用水、廃水等のストリツピングで排気される排ガ
スを吸着剤を使用して、低コストでしかも簡便に
無害化処理し、環境汚染防止をはかろうとするも
のである。 The present invention provides clean water containing volatile organic chlorine compounds,
This is an attempt to prevent environmental pollution by using an adsorbent to detoxify exhaust gas discharged from stripping of water, wastewater, etc., easily and at low cost.
〔問題点を解決するための手段〕
本発明は、揮発性有機塩素化合物を含む水をス
トリツピングして排気される排ガスを、吸着剤に
接触せしめて排ガス中に移行された前記揮発性有
機塩素化合物を吸着剤に吸着せしめ、該吸着剤が
破過に達した時に再生液もしくは再生ガスで吸着
成分を脱着し、排出される再生排液もしくは再生
排ガスに紫外線を照射して再生排液もしくは再生
排ガス中に脱着された前記揮発性有機塩素化合物
を分解することを特徴とする排ガス処理方法であ
る。[Means for Solving the Problems] The present invention provides a system for stripping water containing volatile organic chlorine compounds and bringing the exhaust gas exhausted into contact with an adsorbent so that the volatile organic chlorine compounds are transferred into the exhaust gas. is adsorbed on an adsorbent, and when the adsorbent reaches breakthrough, the adsorbed component is desorbed with a regenerating liquid or regenerating gas, and the regenerated waste liquid or regenerated gas is irradiated with ultraviolet rays to regenerate the regenerated liquid or regenerated exhaust gas. This is an exhaust gas treatment method characterized by decomposing the volatile organic chlorine compounds desorbed therein.
本発明の作用について、一実施態様を示す図面
を参照しながら説明すれば、トリクロロエチレ
ン、テトラクロロエチレン等の揮発性有機塩素化
合物を含有する原水１は、ストリツピング装置２
に導かれて上方から充填物３に散布され、下方か
ら送風機４によつて吹き込まれるストリツピング
ガス（空気など）５により水中の揮発性有機塩素
化合物が除去され、処理水６となつて流出する。
一方、ストリツピング装置２から排気される排ガ
ス７中には、水中から追い出された揮発性有機塩
素化合物が含まれており、この排ガス７を吸着剤
８を充填した吸着装置９に導入して吸着剤８と接
触させることにより、排ガス７中の揮発性有機塩
素化合物は吸着剤８に吸着され、無害化された処
理ガス１０となつて排出される。
The operation of the present invention will be described with reference to the drawings showing one embodiment. Raw water 1 containing volatile organic chlorine compounds such as trichlorethylene and tetrachlorethylene is passed through a stripping device 2.
Volatile organic chlorine compounds in the water are removed by a stripping gas (such as air) 5 which is guided by the water and sprayed from above onto the filling 3 and blown from below by a blower 4, and flows out as treated water 6. do.
On the other hand, the exhaust gas 7 exhausted from the stripping device 2 contains volatile organic chlorine compounds expelled from the water, and this exhaust gas 7 is introduced into an adsorption device 9 filled with an adsorbent 8 to absorb the 8, volatile organic chlorine compounds in the exhaust gas 7 are adsorbed by the adsorbent 8, and are discharged as a detoxified treated gas 10.
このような吸着操作において、吸着剤８は吸着
の進行に伴つて吸着能力を失い、破過に達した時
点で排ガスの通気停止あるいは予備吸着装置への
切り換えを行い、吸着剤８の吸着成分の脱着、再
生を行う。すなわち、吸着剤層に再生液もしくは
再生ガス１１（図示例では送風機４から再生ガス
が送気される）を通過させ、吸着剤８に吸着され
た揮発性有機塩素化合物を脱着し、排出される再
生排液もしくは再生排ガス１２を紫外線照射装置
１３に導入して紫外線を照射すると、強力な紫外
線エネルギーにより再生排液もしくは再生排ガス
１２中に脱着された揮発性有機塩素化合物は分解
され、無害化されて排出される。 In such an adsorption operation, the adsorbent 8 loses its adsorption capacity as adsorption progresses, and when a breakthrough is reached, exhaust gas ventilation is stopped or switching to a preliminary adsorption device is performed, and the adsorbent components of the adsorbent 8 are removed. Detach and regenerate. That is, a regenerating liquid or a regenerating gas 11 (in the illustrated example, the regenerating gas is blown from the blower 4) is passed through the adsorbent layer, and the volatile organic chlorine compounds adsorbed on the adsorbent 8 are desorbed and discharged. When the recycled waste liquid or recycled exhaust gas 12 is introduced into the ultraviolet irradiation device 13 and irradiated with ultraviolet rays, the volatile organic chlorine compounds desorbed into the recycled waste liquid or recycled exhaust gas 12 are decomposed and rendered harmless by strong ultraviolet energy. is discharged.
前記吸着剤８としては粒状又は繊維状、ハニカ
ム状等の活性炭、ゼオライト、モレキユラシーブ
等の天然、合成樹脂吸着剤を使用することがで
き、再生液としては温水又はアルコール等の有機
溶媒を、再生ガスとしては加熱空気（100℃程度
で十分である）を使用することができ、また吸着
装置９に加熱装置１４を付設するのも好ましい。
〔実施例〕
某工場洗浄廃水を対象として、本発明を図示例
の実施態様にしたがつて実施した場合の処理条件
及び処理効果は次の通りであつた。 As the adsorbent 8, natural or synthetic resin adsorbents such as granular, fibrous, or honeycomb-like activated carbon, zeolite, molecular sieve, etc. can be used, and as the regenerating liquid, hot water or an organic solvent such as alcohol can be used. Heated air (approximately 100° C. is sufficient) can be used, and it is also preferable to attach a heating device 14 to the adsorption device 9.
[Example] The treatment conditions and treatment effects were as follows when the present invention was carried out in accordance with the illustrated embodiment for wastewater from a certain factory washing.
ストリツピング装置
方式：テラレツト充填塔（５ｍ充填）
通気量（空気）／通水量：30
通水速度：60m／ｈ
水 質
原水中トリクロロエチレン：350〜600μｇ／
原水中テトラクロロエチレン：130〜200μｇ／
処理水中トリクロロエチレン：＜10μｇ／
処理水中テトラクロロエチレン：＜5μｇ／
吸着装置
方式：繊維状活性炭吸着
加熱空気（100℃）再生
入口（排ガス）トリクロロエチレン：
10〜20mg／Ｎm3
入口（排ガス）テトラクロロエチレン：
４〜６mg／Ｎm3
出口（処理ガス）トリクロロエチレン：
＜0.1mg／Ｎm3
出口（処理ガス）テトラクロロエチレン：
＜0.1mg／Ｎm3
紫外線照射装置
方式：400W紫外線ランプによる直接照射
入口（再生排ガス）トリクロロエチレン：
500〜1000mg／Ｎ
入口（再生排ガス）テトラクロロエチレン：
500〜1000mg／Ｎ
出口トリクロロエチレン：
＜1μｇ／Ｎ
出口テトラクロロエチレン：
＜1μｇ／Ｎ
〔発明の効果〕
以上述べたように本発明によれば、排ガス中の
揮発性有機塩素化合物濃度規制が厳しい場合や対
象排ガス濃度が高い場合にも、該化合物を効果的
に分解、無害化することができ、また再生設備の
コンパクト化を図ることができ、現場で、しかも
低コストで吸着剤の再生と環境汚染防止が可能に
なるなど極めて有益なる効果を有するものであ
る。Stripping equipment method: Terraretsu packed tower (5 m packed) Aeration rate (air)/Water flow rate: 30 Water flow rate: 60 m/h Water Quality: Trichlorethylene in raw water: 350 to 600 μg/Tetrachlorethylene in raw water: 130 to 200 μg/
Trichlorethylene in treated water: <10 μg/ Tetrachlorethylene in treated water: <5 μg/ Adsorption device method: Fibrous activated carbon adsorption Heated air (100°C) Regeneration inlet (exhaust gas) Trichlorethylene: 10 to 20 mg/Nm 3 Inlet (exhaust gas) Tetrachlorethylene: 4 to 6 mg /Nm 3 outlet (processing gas) Trichlorethylene: ＜0.1mg/Nm 3 outlet (processing gas) Tetrachlorethylene: ＜0.1mg/Nm 3 Ultraviolet irradiation device method: Direct irradiation with 400W ultraviolet lamp Inlet (recycled exhaust gas) Trichlorethylene: 500 to 1000mg /N Inlet (regenerated exhaust gas) tetrachlorethylene: 500 to 1000 mg/N Outlet trichlorethylene: <1 μg/N Outlet tetrachlorethylene: <1 μg/N [Effects of the Invention] As described above, according to the present invention, volatile organic Even in cases where chlorine compound concentration regulations are strict or the target exhaust gas concentration is high, the compounds can be effectively decomposed and rendered harmless, and the regeneration equipment can be made more compact, allowing for on-site and low-cost treatment. This has extremely beneficial effects, such as making it possible to regenerate adsorbents and prevent environmental pollution.
図面は本発明の一実施態様を示す系統説明図で
ある。
１…原水、２…ストリツピング装置、３…充填
物、４…送風機、５…ストリツピングガス、６…
処理水、７…排ガス、８…吸着剤、９…吸着装
置、１０…処理ガス、１１…再生ガス、１２…再
生排ガス、１３…紫外線照射装置、１４…加熱装
置。
The drawing is a system explanatory diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Raw water, 2...Stripping device, 3...Filling material, 4...Blower, 5...Stripping gas, 6...
Treated water, 7... Exhaust gas, 8... Adsorbent, 9... Adsorption device, 10... Processing gas, 11... Regeneration gas, 12... Regeneration exhaust gas, 13... Ultraviolet irradiation device, 14... Heating device.
Claims (1)
ングして排気される排ガスを、吸着剤に接触せし
めて排ガス中に移行された前記揮発性有機塩素化
合物を吸着剤に吸着せしめ、該吸着剤が破過に達
した時に再生液もしくは再生ガスで吸着成分を脱
着し、排出される再生排液もしくは再生排ガスに
紫外線を照射して再生排液もしくは再生排ガス中
に脱着された前記揮発性有機塩素化合物を分解す
ることを特徴とする排ガス処理方法。1. The exhaust gas exhausted by stripping water containing volatile organic chlorine compounds is brought into contact with an adsorbent, and the volatile organic chlorine compounds transferred into the exhaust gas are adsorbed on the adsorbent, and the adsorbent is When the amount reached, the adsorbed components are desorbed with the regeneration liquid or regeneration gas, and the volatile organic chlorine compounds desorbed in the regeneration liquid or regeneration gas are decomposed by irradiating ultraviolet rays to the regeneration liquid or regeneration gas. An exhaust gas treatment method characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038786A JPS61200837A (en) | 1985-03-01 | 1985-03-01 | Treatment of exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038786A JPS61200837A (en) | 1985-03-01 | 1985-03-01 | Treatment of exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61200837A JPS61200837A (en) | 1986-09-05 |
| JPS6348573B2 true JPS6348573B2 (en) | 1988-09-29 |
Family
ID=12534982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60038786A Granted JPS61200837A (en) | 1985-03-01 | 1985-03-01 | Treatment of exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61200837A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854434A (en) * | 2017-05-15 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of processing method and processing device of refinery VOCs exhaust gas |
| CN108993113A (en) * | 2018-09-07 | 2018-12-14 | 山东百川同创能源有限公司 | A kind of the Alternative combined system and method for organic exhaust gas odor treatment |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01300969A (en) * | 1988-05-31 | 1989-12-05 | Matsushita Electric Ind Co Ltd | Decomposing method of halogenoacyclic hydrocarbon compound |
| US4857198A (en) * | 1988-07-29 | 1989-08-15 | Zimpro/Passavant Inc. | Process for treatment of water containing volatile and toxic compounds |
| JPH0725271Y2 (en) * | 1989-10-04 | 1995-06-07 | 日本特殊陶業株式会社 | Wastewater treatment equipment |
| US5266540A (en) * | 1990-02-02 | 1993-11-30 | Eniricerche S.P.A. | Process for the regeneration of active carbon |
| JP2564865Y2 (en) * | 1991-09-10 | 1998-03-11 | オルガノ株式会社 | Purification equipment for water containing organic solvents |
| KR100424507B1 (en) * | 2000-05-27 | 2004-03-26 | (주)백년기술 | Apparatus for destruction of volatile organic compounds |
| EP1715938A4 (en) * | 2004-01-27 | 2008-08-06 | Purifics Environmental Technol | Advanced contaminant treatment system |
| CN102107913B (en) * | 2010-12-22 | 2012-09-19 | 薛铜龙 | Dry cleaning machine wastewater treatment device |
-
1985
- 1985-03-01 JP JP60038786A patent/JPS61200837A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854434A (en) * | 2017-05-15 | 2018-11-23 | 中国石油化工股份有限公司 | A kind of processing method and processing device of refinery VOCs exhaust gas |
| CN108854434B (en) * | 2017-05-15 | 2021-06-04 | 中国石油化工股份有限公司 | Method and device for treating refinery VOCs waste gas |
| CN108993113A (en) * | 2018-09-07 | 2018-12-14 | 山东百川同创能源有限公司 | A kind of the Alternative combined system and method for organic exhaust gas odor treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61200837A (en) | 1986-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5087374A (en) | Removal of contaminates from granular solids | |
| KR100354281B1 (en) | Garbage Disposal Equipment | |
| US4098691A (en) | Purification of water for boiler | |
| JPS6348573B2 (en) | ||
| JPS6348574B2 (en) | ||
| JPS6348567B2 (en) | ||
| JPH0952015A (en) | Solvent treatment apparatus and method therefor | |
| KR100424507B1 (en) | Apparatus for destruction of volatile organic compounds | |
| KR20020057852A (en) | A Method for Recovery and Removal of Volatile Organic Compounds, and An Apparatus Using the Method | |
| JP2548665B2 (en) | Adsorption treatment method | |
| JP3384464B2 (en) | Method for treating volatile organic chlorine compounds | |
| JPH1110136A (en) | Process and device for water treatment | |
| JPS5778927A (en) | Treatment of offensive odor | |
| JPH043678Y2 (en) | ||
| JP2006055713A (en) | Water treatment system | |
| JP2004098014A (en) | Method for treating gas containing volatile organic compound | |
| JP3611278B2 (en) | Treatment method for contaminated water | |
| JP3925890B2 (en) | Method and apparatus for treating PCB-contaminated waste cleaning exhaust gas | |
| JPH10128049A (en) | Waste gas deodorizing method | |
| JPS643137B2 (en) | ||
| DE4436656C2 (en) | Method and device for decontaminating and regenerating zeolites | |
| JP3293207B2 (en) | Method for treating volatile organic halogen compound-containing gas | |
| JPH07124443A (en) | Treatment of volatile organohalogen compound containing gas | |
| TW546161B (en) | Method for regeneration of exhaust absorbing and treating system | |
| JP2002096079A (en) | Method for processing waste water, method for regenerating adsorbent and waste water processing facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |