JP2564865Y2 - Purification equipment for water containing organic solvents - Google Patents
Purification equipment for water containing organic solventsInfo
- Publication number
- JP2564865Y2 JP2564865Y2 JP1991081394U JP8139491U JP2564865Y2 JP 2564865 Y2 JP2564865 Y2 JP 2564865Y2 JP 1991081394 U JP1991081394 U JP 1991081394U JP 8139491 U JP8139491 U JP 8139491U JP 2564865 Y2 JP2564865 Y2 JP 2564865Y2
- Authority
- JP
- Japan
- Prior art keywords
- organic solvent
- solvent
- activated carbon
- gas
- containing gas
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案は、浄水場における浄化処
理や有機溶剤の濃度が数千〜数万ppb の地下水の除染処
理や、有機溶剤を使用する工場からの排水などのよう
に、トリクロロエチレン、１，１，１−トリクロロエタ
ン、テトラクロロエチレン、ｃｉｓ−１，２−ジクロロ
エチレンなどの有機溶剤を含有した有機溶剤含有水を浄
化処理するために、有機溶剤含有水を供給して曝気処理
し、有機溶剤を含有した有機溶剤含有ガスを取り出す曝
気処理槽を設けるとともに、有機溶剤含有ガス中の有機
溶剤を吸着する活性炭素材製吸着材を収容した溶剤回収
装置を設け、曝気処理槽と溶剤回収装置とをガス配管を
介して接続し、曝気処理槽から取り出された有機溶剤含
有ガスを溶剤回収装置に供給するとともに、有機溶剤を
吸着した後のガスを排出可能に構成し、かつ、活性炭素
材製吸着材を間にして、吸着した有機溶剤を脱着する過
熱水蒸気を供給する蒸気供給管と、脱着した有機溶剤を
回収する溶剤回収管とを溶剤回収装置に接続した有機溶
剤含有水の浄化処理装置に関する。[Industrial applications] The present invention is applicable to purification treatment at water treatment plants, decontamination treatment of groundwater with an organic solvent concentration of thousands to tens of thousands of ppb, and wastewater from factories that use organic solvents. In order to purify water containing organic solvents containing organic solvents such as trichloroethylene, 1,1,1-trichloroethane, tetrachloroethylene, and cis-1,2-dichloroethylene , aeration treatment is performed by supplying water containing organic solvents.
To remove the organic solvent-containing gas containing the organic solvent.
A gas treatment tank is provided and the organic solvent in the organic solvent-containing gas is
Solvent recovery containing activated carbon adsorbent that adsorbs solvent
Equipment is installed, and the gas piping is connected between the aeration tank and the solvent recovery device.
Via the aeration tank, containing the organic solvent
While supplying gas to the solvent recovery unit, the organic solvent is
Gas after adsorbing is configured to be able to be discharged and activated carbon
The process of desorbing the adsorbed organic solvent with a material adsorbent in between
The steam supply pipe for supplying hot steam and the desorbed organic solvent
The present invention relates to an organic solvent-containing water purification treatment device in which a solvent recovery pipe to be recovered is connected to a solvent recovery device .
【０００２】[0002]
【従来の技術】有機溶剤含有水の浄化処理装置として
は、従来、図８の全体概略縦断面図に示すように、曝気
処理槽０１内に、気液の接触面積を増大するためのラヒ
シリング等の充填材０２…を充填し、曝気処理槽０１の
充填材０２…よりも上方側に、有機溶剤含有水の供給管
０３を接続するとともに排ガスを排出する排気口０４を
設け、一方、曝気処理槽０１の充填材０２…よりも下方
側に、処理水を排出する排水管０５を接続するととも
に、空気を供給する空気供給管０６を接続し、送風機
（図示せず）によって外気を曝気処理槽０１内に導入
し、充填材０２…それぞれの表面で薄い皮膜となった有
機溶剤含有水と空気とを効率良く接触させ、有機溶剤を
液中から空気中に取り込み、その有機溶剤を排気口０４
から排出し、一方、浄化した処理水を排水管０５から排
出していた。2. Description of the Related Art Conventionally, as an apparatus for purifying water containing an organic solvent, as shown in the overall schematic vertical cross-sectional view of FIG. Of the aeration tank 01 is connected to the supply pipe 03 of the organic solvent-containing water and an exhaust port 04 for discharging exhaust gas is provided above the filler 02 of the aeration tank 01. A drain pipe 05 for discharging treated water and an air supply pipe 06 for supplying air are connected to a lower side of the filling material 02 of the tank 01, and an outside air is blown by an air blower (not shown). 01, the filler 02... The organic solvent-containing water, which has become a thin film on each surface, is brought into efficient contact with air, the organic solvent is taken into the air from the liquid, and the organic solvent is discharged into the exhaust port 04.
, While the purified treated water was discharged from the drain pipe 05.
【０００３】ところが、排気口０４から大気中に有機溶
剤を排出すると、新たな大気汚染を発生する問題があ
り、本出願人は、実願平２−２４８９０号（出願日：平
成２年３月１４日）において明示したように、粒状活性
炭による吸着材を備えた溶剤回収装置を、水滴を除去可
能なミストセパレータを介装したガス配管を介して排気
口０４に接続するとともに、ガス配管にヒーターを付設
して溶剤回収装置に供給する有機溶剤含有ガスの相対湿
度を加熱によって低下させ、粒状活性炭に吸着される水
分の量を減少して粒状活性炭による吸着効率を向上しな
がら有機溶剤を粒状活性炭に吸着させる技術を開発し
た。However, if the organic solvent is discharged into the atmosphere from the exhaust port 04, there is a problem that a new air pollution is generated, and the present applicant has filed Japanese Utility Model Application No. 2-24890 (filing date: March 1990). 14), a solvent recovery device provided with an adsorbent made of granular activated carbon was connected to the exhaust port 04 via a gas pipe provided with a mist separator capable of removing water droplets, and a heater was connected to the gas pipe. To reduce the relative humidity of the organic solvent-containing gas supplied to the solvent recovery device by heating, reduce the amount of water adsorbed on the granular activated carbon, and improve the adsorption efficiency of the granular activated carbon, thereby removing the organic solvent from the granular activated carbon. The technology to make it adsorb to the surface was developed.
【０００４】[0004]
【考案が解決しようとする課題】しかしながら、粒状活
性炭による吸着材では、単位重量当りの有機溶剤の吸着
量が比較的少なく、多量の粒状活性炭を必要として溶剤
回収装置が全体として大型化する欠点があった。However, the adsorbent using granular activated carbon has a drawback that the amount of organic solvent adsorbed per unit weight is relatively small, a large amount of granular activated carbon is required, and the solvent recovery apparatus becomes large as a whole. there were.
【０００５】また、粒状活性炭による溶剤吸着量が飽和
量近くになるに伴って、その交換を必要とし、そのう
え、溶剤回収装置全体が大型であるために交換に手間を
要する欠点があった。Further, as the amount of the solvent adsorbed by the granular activated carbon becomes close to the saturation amount, it needs to be replaced, and furthermore, there is a problem that the replacement is troublesome because the entire solvent recovery device is large.
【０００６】更に、季節や天候条件によって、排気口０
４から溶剤回収装置に至るガス配管内を通る有機溶剤含
有ガスの温度が変化してその相対湿度が変動するため、
溶剤回収装置に供給される有機溶剤含有ガスを単純に加
熱した場合に、その加熱量が不足して所定の相対湿度ま
で低下できないとか、あるいは、逆に、必要以上に加熱
し、電力消費量が多くなってランニングコストが高くな
る欠点があった。Further, depending on the season and weather conditions, the exhaust port
Since the temperature of the organic solvent-containing gas passing through the gas pipe from 4 to the solvent recovery device changes and its relative humidity fluctuates,
If the organic solvent-containing gas supplied to the solvent recovery unit is simply heated, the heating amount is insufficient and the relative humidity cannot be reduced to the specified relative humidity. There was a disadvantage that running costs increased due to an increase.
【０００７】本考案は、このような事情に鑑みてなされ
たものであって、請求項１に係る考案の有機溶剤含有水
の浄化処理装置は、小型の溶剤回収装置でもって経済的
に、かつ、効率良く有機溶剤を吸着して回収できるよう
にするとともに、メンテナンス面で有利にして所定温度
の有機溶剤含有ガスを供給できるようにすることを目的
とし、また、請求項２に係る考案の有機溶剤含有水の浄
化処理装置は、ランニングコストを極力低減しながら有
機溶剤を良好に吸着できるようにすることを目的とす
る。The present invention has been made in view of such circumstances, and the apparatus for purifying water containing an organic solvent according to the first aspect of the present invention is economical and economical with a small-sized solvent recovery apparatus. efficiently with to allow the organic solvent can be recovered by suction, aims to be able to deliver an organic solvent-containing gas at a predetermined temperature in the advantageous maintenance surface, also, the invention according to claim 2 An object of the present invention is to purify an organic solvent-containing water while adsorbing an organic solvent while reducing running costs as much as possible.
【０００８】[0008]
【課題を解決するための手段】請求項１に係る考案は、
上述のような目的を達成するために、有機溶剤含有水を
供給して曝気処理し、有機溶剤を含有した有機溶剤含有
ガスを取り出す曝気処理槽を設けるとともに、有機溶剤
含有ガス中の有機溶剤を吸着する活性炭素材製吸着材を
収容した溶剤回収装置を設け、前記曝気処理槽と前記溶
剤回収装置とを送風機を介装したガス配管を介して接続
し、前記曝気処理槽から取り出された有機溶剤含有ガス
を前記溶剤回収装置に供給するとともに、有機溶剤を吸
着した後のガスを排出可能に構成し、かつ、前記活性炭
素材製吸着材を間にして、吸着した有機溶剤を脱着する
過熱水蒸気を供給する蒸気供給管と、脱着した有機溶剤
を回収する溶剤回収管とを前記溶剤回収装置に接続した
有機溶剤含有水の浄化処理装置において、前記活性炭素
材製吸着材として活性炭素繊維製吸着材を用いるととも
に、前記ガス配管の途中箇所の前記送風機よりも上流側
に、前記溶剤回収装置に供給される有機溶剤含有ガスを
加熱する加熱手段を設け、かつ、前記加熱手段で加熱さ
れた有機溶剤含有ガスの温度を測定する温度センサを、
前記送風機よりも下流側に設けるとともに、前記温度セ
ンサで測定された温度を設定範囲内に維持するように前
記加熱手段を作動させる加熱制御装置を備えて構成す
る。According to the first aspect of the present invention,
In order to achieve the above-mentioned object, an aeration treatment tank is provided for supplying an organic solvent-containing water and performing aeration treatment, and for extracting an organic solvent-containing gas containing an organic solvent, and removing the organic solvent in the organic solvent-containing gas. A solvent recovery device containing an adsorbent made of an activated carbon material to be adsorbed is provided, and the aeration treatment tank and the solvent recovery device are connected via a gas pipe provided with a blower , and the organic solvent taken out of the aeration treatment tank The supplied gas is supplied to the solvent recovery device, and the gas after adsorbing the organic solvent is configured to be able to be exhausted, and the activated carbon material adsorbent is interposed between the superheated steam for desorbing the adsorbed organic solvent. In the purification apparatus for organic solvent-containing water in which a steam supply pipe for supplying and a solvent recovery pipe for recovering the desorbed organic solvent are connected to the solvent recovery apparatus, the activated carbon material adsorbent is used as the adsorbent. With use of sex carbon textile adsorbent upstream <br/> than the blower of the middle portion of the gas pipe, provided with a heating means for heating the organic solvent-containing gas supplied to the solvent recovery device, and A temperature sensor for measuring the temperature of the organic solvent-containing gas heated by the heating means ,
A heating control device is provided downstream of the blower and operates the heating means so as to maintain the temperature measured by the temperature sensor within a set range.
【０００９】活性炭素繊維製吸着材を構成する活性炭素
繊維としては、ピッチ系、ポリアクリロニトリル（ＰＡ
Ｎ）系、フェノール系、セルロース系等各種のものを使
用できる。加熱手段としては、電気ヒータやスチームヒ
ータなどが使用される。The activated carbon fibers constituting the adsorbent made of activated carbon fibers include pitch-based, polyacrylonitrile (PA)
Various types such as N) type, phenol type and cellulose type can be used. As a heating means, an electric heater, a steam heater, or the like is used.
【００１０】[0010]
【００１１】また、請求項２に係る考案の有機溶剤含有
水の浄化処理装置は、上述のような目的を達成するため
に、請求項１の加熱制御装置によって制御する温度範囲
を40〜45℃に設定する。40℃未満になると活性炭素繊維
製吸着材に供給される有機溶剤含有ガスの相対湿度が30
％を越え、吸着効率を向上できず、一方、45℃を越える
と、加熱手段の電力消費量が増大し、ランニングコスト
が高くなって不経済になるからである。Further, the purification apparatus of an organic solvent-containing water devise according to claim 2, in order to achieve the above-described object, 40 to 45 ° C. The temperature range to be controlled by the heating control apparatus according to claim 1 Set to. If the temperature is lower than 40 ° C, the relative humidity of the organic solvent-containing gas supplied to the activated carbon fiber adsorbent becomes 30
%, The adsorption efficiency cannot be improved. On the other hand, when the temperature exceeds 45 ° C., the power consumption of the heating means increases, the running cost increases, and it becomes uneconomical.
【００１２】[0012]
【作用】請求項１に係る考案の有機溶剤含有水の浄化処
理装置の構成によれば、曝気処理槽から排出されて活性
炭素繊維製吸着材に供給されるガス配管内の有機溶剤含
有ガスを加熱して設定範囲内の高温状態に維持するか
ら、その相対湿度を低下できるとともに変動を抑えるこ
とができる。そのうえ、送風機に供給する前に有機溶剤
含有ガスを加熱し、かつ、送風機よりも下流で有機溶剤
含有ガスの温度を測定し、溶剤回収装置に供給される有
機溶剤含有ガスの温度を設定範囲内に維持することがで
きる。 According to the construction of the apparatus for purifying water containing organic solvent according to the present invention, the organic solvent-containing gas in the gas pipe discharged from the aeration tank and supplied to the activated carbon fiber adsorbent is removed. Since heating is performed to maintain the high temperature state within the set range, the relative humidity can be reduced and the fluctuation can be suppressed. In addition, before feeding to the blower, the organic solvent
Heats the contained gas, and the organic solvent downstream from the blower
Measures the temperature of the contained gas and supplies it to the solvent recovery unit.
The temperature of the solvent-containing gas can be maintained within the set range.
Wear.
【００１３】[0013]
【００１４】請求項２に係る考案の有機溶剤含有水の浄
化処理装置の構成によれば、有機溶剤含有ガスの相対湿
度を30％以下にしさえすれば、活性炭素繊維製吸着材に
よる吸着効率がほとんど変わらないことに着目し、加熱
制御温度範囲を40〜45℃に設定することにより、有機溶
剤含有ガスの相対湿度を30％以下に維持するとともに電
力消費量を低減することができる。[0014] According to the purification treatment apparatus of the organic solvent-containing water devise according to claim 2, if only the relative humidity of the organic solvent-containing gas to 30% or less, the adsorption efficiency by activated carbon fiber made adsorbent Focusing on the fact that there is almost no change, by setting the heating control temperature range to 40 to 45 ° C., it is possible to maintain the relative humidity of the organic solvent-containing gas at 30% or less and reduce the power consumption.
【００１５】[0015]
【実施例】次に、本考案の実施例を図面に基づいて詳細
に説明する。Next, an embodiment of the present invention will be described in detail with reference to the drawings.
【００１６】図１は、有機溶剤含有水の浄化処理装置の
実施例を示すフローシートであり、この図において、１
は曝気処理槽を示し、その内部にラシヒリング、テラレ
ットパッキンなどの充填材２…が充填されている。FIG. 1 is a flow sheet showing an embodiment of an apparatus for purifying organic solvent-containing water.
Denotes an aeration tank in which fillers 2 such as Raschig rings and teralet packings are filled.
【００１７】前記曝気処理槽１の上部に、原水ポンプ３
と第１の流量計４と第１の流量調節弁５とを介装した有
機溶剤含有水の供給管６を接続し、第１の流量計４によ
って流量を確認しながら第１の流量調節弁５を調節し、
曝気処理槽１に所定流量の有機溶剤含有水を供給できる
ように構成する。一方、曝気処理槽１の下部に、処理水
の排水管７を接続する。A raw water pump 3 is provided above the aeration tank 1.
And a supply pipe 6 for organic solvent-containing water provided with a first flow meter 4 and a first flow control valve 5 interposed therebetween, and the first flow meter 4 checks the flow rate with the first flow meter 4 Adjust 5
It is configured such that a predetermined flow rate of organic solvent-containing water can be supplied to the aeration tank 1. On the other hand, the drainage pipe 7 of the treated water is connected to the lower part of the aeration tank 1.
【００１８】前記曝気処理槽１の下部に、第１の送風機
８と第２の流量計９と第２の流量調節弁１０とを介装し
た空気を供給する空気供給管１１を接続し、第２の流量
計９によって流量を確認しながら第２の流量調節弁１０
を調節し、曝気処理槽１に所定流量の空気を供給できる
ように構成する。一方、曝気処理槽１の上部に、除塵な
らびに水滴除去用のミストセパレーター１２を付設した
排気口１３を設ける。An air supply pipe 11 for supplying air through a first blower 8, a second flow meter 9 and a second flow control valve 10 is connected to a lower portion of the aeration tank 1, While checking the flow rate with the flow meter 9 of the second embodiment, the second flow control valve 10
So that a predetermined amount of air can be supplied to the aeration tank 1. On the other hand, an exhaust port 13 provided with a mist separator 12 for removing dust and removing water droplets is provided above the aeration tank 1.
【００１９】排気口１３に、第２の送風機１４を介装し
たガス配管１５を介して溶剤回収装置１６を接続する。
溶剤回収装置１６は、ガス吸着用エレメントＡをフィル
ターとして取り付けた吸着塔１７を並列状態で設置して
構成し、両吸着塔１７，１７の下部側空間それぞれに、
第１の電磁弁１８を介して前記ガス配管１５を接続する
とともに、第２の電磁弁１９を介してコンデンサー２０
およびセパレータ２１を介装した溶剤回収管２２を接続
する。A solvent recovery unit 16 is connected to the exhaust port 13 via a gas pipe 15 having a second blower 14 interposed.
The solvent recovery device 16 is configured by installing an adsorption tower 17 in which a gas adsorption element A is mounted as a filter in a parallel state.
The gas pipe 15 is connected via a first solenoid valve 18, and a condenser 20 is connected via a second solenoid valve 19.
And a solvent recovery pipe 22 with a separator 21 interposed therebetween.
【００２０】両吸着塔１７，１７の上方側を、排ガス部
２３ａを備えたカバー２３で覆い、そして、吸着塔１
７，１７それぞれの上部開口に、カバー２３に取り付け
たエアシリンダ２４によって開閉動作される弁体２５を
設け、かつ、その弁体２５により閉じられた状態の空間
に接続するように、第３の電磁弁２６を介装し た蒸
気供給管２７をガス吸着用エレメントＡ内に接続する。The upper sides of the two adsorption towers 17 and 17 are covered with a cover 23 provided with an exhaust gas section 23a.
A third valve body 25, which is opened and closed by an air cylinder 24 attached to a cover 23, is provided at the upper opening of each of the first and second covers 17 and 17 so as to be connected to a space closed by the valve body 25. A steam supply pipe 27 provided with an electromagnetic valve 26 is connected to the gas adsorption element A.
【００２１】以上の構成により、前記第１ないし第３の
電磁弁１８，１８、１９，１９、２６，２６、および、
弁体２５，２５それぞれを背反的に開閉し、一方の吸着
塔１７に溶剤含有ガスを供給してガス吸着用エレメント
Ａを通過させ、ガス吸着用エレメントＡを構成する円筒
状の活性炭素繊維製吸着材２８に有機溶剤を吸着する。
同時に、他方の吸着塔１７においては、過熱水蒸気の供
給により、円筒状の活性炭素繊維製吸着材２８に吸着さ
れた有機溶剤を加熱脱着して活性炭素繊維製吸着材２８
を再生し、脱着された溶剤を、コンデンサー２０を経て
セパレータ２１に供給し、溶剤を比重分離によって回収
するようになっている。With the above arrangement, the first to third solenoid valves 18, 18, 19, 19, 26, 26, and
The valves 25, 25 are opened and closed in a reciprocal manner, and a solvent-containing gas is supplied to one of the adsorption towers 17 to pass through the gas adsorption element A, thereby forming a cylindrical activated carbon fiber constituting the gas adsorption element A. The organic solvent is adsorbed on the adsorbent 28.
At the same time, in the other adsorption tower 17, the organic solvent adsorbed on the cylindrical activated carbon fiber adsorbent 28 is heated and desorbed by the supply of superheated steam, and the activated carbon fiber adsorbent 28 is desorbed.
And the desorbed solvent is supplied to the separator 21 via the condenser 20, and the solvent is recovered by specific gravity separation.
【００２２】上述した過熱水蒸気としては、水蒸気供給
源側あるいは蒸気供給管２７の途中箇所などに電気ヒー
タなどの加熱装置を設け、飽和状態に対する相対湿度が
30％以下になった水蒸気を活性炭素繊維製吸着材２８に
供給するように構成するものである。As the above-mentioned superheated steam, a heating device such as an electric heater is provided on the steam supply source side or in the middle of the steam supply pipe 27 so that the relative humidity with respect to the saturated state is reduced.
The configuration is such that the water vapor of 30% or less is supplied to the activated carbon fiber adsorbent 28.
【００２３】両吸着塔１７，１７に対して、有機溶剤含
有ガスを供給する溶剤吸着状態と、吸着した有機溶剤を
脱着する脱着状態とに背反的に切換えるための、前記第
１ないし第３の電磁弁１８，１８、１９，１９、２６，
２６、および、弁体２５，２５から成るものをして切換
機構と総称する。The first to third methods for reciprocally switching the adsorption towers 17, 17 between a solvent adsorption state in which a gas containing an organic solvent is supplied and a desorption state in which the adsorbed organic solvent is desorbed. Solenoid valves 18, 18, 19, 19, 26,
26 and the valve body 25 are collectively referred to as a switching mechanism.
【００２４】活性炭素繊維製吸着材２８は、公称比表面
積1000ｍ2 ／ｇのピッチ系活性炭素繊維（Ａ−１０：株
式会社アドール製）をフェルト状に加工した活性炭素繊
維フェルト（ＦＮ３００ＧＦ１０：大阪ガスケミカル株
式会社製）で構成する。The activated carbon fiber adsorbent 28 is an activated carbon fiber felt (FN300GF10: Osaka Gas) obtained by processing pitch-based activated carbon fibers (A-10: manufactured by Adol Co., Ltd.) into a felt shape with a nominal specific surface area of 1000 m 2 / g. Chemical Co., Ltd.).
【００２５】ガス配管１５の第２の送風機１４よりも上
流側に、加熱手段としての電気ヒータ２９を設け、一
方、下流側に、ガス配管１５内を流れる有機溶剤含有ガ
スの温度を測定する温度センサ３０を設け、温度センサ
３０に加熱制御装置３１を接続するとともに、その加熱
制御装置３１に電気ヒータ２９を接続する。An electric heater 29 as a heating means is provided upstream of the second blower 14 of the gas pipe 15, while a temperature for measuring the temperature of the organic solvent-containing gas flowing through the gas pipe 15 is provided on the downstream side. A sensor 30 is provided, and a heating control device 31 is connected to the temperature sensor 30, and an electric heater 29 is connected to the heating control device 31.
【００２６】加熱制御装置３１において、温度範囲を40
〜45℃に設定してあり、温度センサ３０による測定温度
が40℃未満になると電気ヒータ２９に通電し、一方、測
定温度が45℃を越えると電気ヒータ２９への通電を停止
し、ガス吸着用エレメントＡに供給する有機溶剤含有ガ
スの温度を40〜45℃の範囲内に維持するように構成す
る。In the heating control device 31, the temperature range is set to 40
When the temperature measured by the temperature sensor 30 is lower than 40 ° C., the power is supplied to the electric heater 29, and when the measured temperature exceeds 45 ° C., the power supply to the electric heater 29 is stopped. The temperature of the organic solvent-containing gas supplied to the element A is maintained in the range of 40 to 45 ° C.
【００２７】すなわち、上述活性炭素繊維製吸着材２８
を構成する活性炭素繊維フェルトでは、図２の水分吸着
等温線のグラフに示すように、相対圧すなわち相対湿度
が40％以上では、その水分吸着量が増大するため、有機
溶剤の吸着量が減少することになる。また、吸着しよう
とする有機溶剤であるトリクロロエチレンでは、図３の
20℃における吸着等温線のグラフに示すように、相対湿
度が30％の場合に、相対湿度が０％の場合とほぼ変わら
ない吸着量が得られるが、相対湿度が60％、90％と上昇
するに連れて吸着量が減少する。That is, the activated carbon fiber adsorbent 28 described above
As shown in the graph of the water adsorption isotherm in FIG. 2, when the relative pressure, that is, the relative humidity, is 40% or more, the amount of water adsorbed increases, and the amount of adsorbed organic solvent decreases. Will do. In addition, in the case of trichlorethylene, which is an organic solvent to be adsorbed, FIG.
As shown in the graph of the adsorption isotherm at 20 ° C, when the relative humidity is 30%, the adsorption amount is almost the same as when the relative humidity is 0%, but the relative humidity increases to 60% and 90%. The amount of adsorption decreases as the operation proceeds.
【００２８】また、例えば、温度20℃で相対湿度 100％
の有機溶剤含有ガスの相対湿度を60％、30％と低下させ
るに必要な温度は、順に９℃上昇させた29℃、21℃上昇
させた41℃となり、相対湿度が約30％よりも低くなるよ
うにするためには、有機溶剤含有ガスの温度を40℃以上
にすることが望ましく、また、電力消費量を低減する上
で45℃程度までにするのが望ましいからである。For example, at a temperature of 20 ° C. and a relative humidity of 100%
The temperature required to reduce the relative humidity of the organic solvent-containing gas to 60% and 30% is 29 ° C, which is increased by 9 ° C, and 41 ° C, which is increased by 21 ° C, and the relative humidity is lower than about 30%. In order to achieve this, the temperature of the organic solvent-containing gas is preferably set to 40 ° C. or higher, and the temperature is preferably set to about 45 ° C. in order to reduce power consumption.
【００２９】以上の構成により、活性炭素繊維製吸着材
２８に供給する有機溶剤含有ガスの温度を設定以上に上
昇して、その相対湿度を低下し、活性炭素繊維製吸着材
２８に吸着される水分量を減少して有機溶剤の吸着効率
を向上するとともに、相対湿度の変動を抑えて安定した
吸着を行うことができるようになっている。With the above configuration, the temperature of the organic solvent-containing gas supplied to the activated carbon fiber adsorbent 28 is raised above a set temperature, the relative humidity is reduced, and the gas is adsorbed by the activated carbon fiber adsorbent 28. In addition to improving the adsorption efficiency of the organic solvent by reducing the amount of water, it is possible to perform stable adsorption by suppressing the fluctuation of the relative humidity.
【００３０】次に、比較実験結果について説明する。比
較例としては、前述実施例において、電気ヒータ２９お
よび加熱制御装置３１による温度制御を行わないものを
対象とした。Next, the results of comparative experiments will be described. As a comparative example, the one in which the temperature control by the electric heater 29 and the heating control device 31 was not performed in the above-described embodiment was targeted.
【００３１】そして、実施例および比較例のいずれの場
合にも、トリクロロエチレンで汚染された地下水（汚染
濃度100ppb）を水量 1.8ｍ3 ／ｈｒで曝気処理槽１に供
給するとともに、風量 1.2ｍ3 ／min(水量に対する空気
量は40倍）で空気を曝気処理槽１に供給し、その汚染濃
度が1ppb以下になるように浄化処理した。このときの曝
気処理槽１から排出される有機溶剤含有ガスの風量は
1.2ｍ3 ／min 、トリクロロエチレンの平均濃度は0.48p
pm であり、この有機溶剤含有ガスを溶剤回収装置１６
に供給して処理した。[0031] Then, in either case of Examples and Comparative Examples, and supplies to the aeration tank 1 trichlorethylene in contaminated groundwater (pollutant concentration 100 ppb) in water 1.8 m 3 / hr, air flow rate 1.2 m 3 / Air was supplied to the aeration tank 1 at min (the amount of air was 40 times the amount of water), and purification was performed so that the concentration of contamination was 1 ppb or less. At this time, the flow rate of the organic solvent-containing gas discharged from the aeration tank 1 is
1.2m 3 / min, average concentration of trichlorethylene is 0.48p
pm, and this organic solvent-containing gas is
And processed.
【００３２】実施例において、溶剤回収装置１６に供給
される直前の有機溶剤含有ガスの温度Ｔを40〜45℃の範
囲内に維持するように制御して相対湿度Ｈを測定したと
ころ、図４の温度および相対湿度それぞれを吸着時間ご
との値で示すグラフに示すように、30％程度に維持でき
た。In the embodiment, the relative humidity H was measured while controlling the temperature T of the organic solvent-containing gas immediately before being supplied to the solvent recovery unit 16 to be in the range of 40 to 45 ° C. Temperature and relative humidity were maintained at about 30% as shown in the graphs showing the values for each adsorption time.
【００３３】この結果から、図５の破過曲線に示すよう
に、 400時間を経過するまでは安定した状態で有機溶剤
を吸着できる。このため、安定した運転条件を得られる
ことが明らかである。From this result, as shown in the breakthrough curve in FIG. 5, the organic solvent can be adsorbed in a stable state until 400 hours have elapsed. Therefore, it is clear that stable operating conditions can be obtained.
【００３４】一方、比較例において、溶剤回収装置１６
に供給される直前の有機溶剤含有ガスの温度Ｔと相対湿
度Ｈそれぞれを測定したところ、図６の温度および相対
湿度それぞれを吸着時間ごとの値で示すグラフに示す結
果が得られた。この結果から、日中の晴天時には、ガス
配管１５を介して有機溶剤含有ガスが温められて相対湿
度Ｈが低下するが、夜間に外気温が低くなると相対湿度
Ｈが高くなるといったように、天候や時間などの影響を
受けて相対湿度Ｈが変動することがわかる。On the other hand, in the comparative example, the solvent recovery device 16
The temperature T and the relative humidity H of the organic solvent-containing gas immediately before being supplied to the sample were measured, and the results shown in the graphs of FIG. 6 showing the temperature and the relative humidity for each adsorption time were obtained. From this result, when the weather is fine in the daytime, the organic solvent-containing gas is warmed through the gas pipe 15 and the relative humidity H decreases, but when the outside air temperature decreases at night, the relative humidity H increases. It can be seen that the relative humidity H fluctuates under the influence of temperature and time.
【００３５】このような相対湿度Ｈが変動する状態にお
いて活性炭素繊維製吸着材２７で有機溶剤を吸着処理す
ると、図７の破過曲線に示すように、 200時間を経過し
た時点で大きく乱れ始めて不安定になる。When the organic solvent is adsorbed by the activated carbon fiber adsorbent 27 in such a state where the relative humidity H fluctuates, as shown in the breakthrough curve of FIG. Becomes unstable.
【００３６】上記実施例では、吸着塔１７を二個設け、
ガス吸着用エレメントＡを構成する活性炭素繊維製吸着
材２８に対し、有機溶剤の吸着と過熱水蒸気による脱着
再生を交互に行って連続的に有機溶剤を回収する、いわ
ゆる二塔式の溶剤回収装置１６を使用しているが、本考
案としては、いわゆる一塔タイプの溶剤回収装置を使用
し、活性炭素繊維製吸着材２８による有機溶剤の吸着が
飽和に達するに相当する時間を見込んだ所定時間が経過
するたびに、一時的に有機溶剤の吸着を中断して脱着状
態に切換え、過熱水蒸気を供給して吸着した有機溶剤を
脱着できるようにするとともに、その脱着した溶剤を凝
縮器で凝縮液化し、かつ、比重分離装置で回収するよう
にしても良い。脱着回収した溶剤は、産業廃棄物の処理
工程などの後処理に付しても良い。In the above embodiment, two adsorption towers 17 are provided,
A so-called two-column type solvent recovery apparatus for continuously recovering an organic solvent by alternately performing adsorption of an organic solvent and desorption / regeneration with superheated steam on an activated carbon fiber adsorbent 28 constituting the gas adsorption element A. Although the present invention employs a so-called single-column type solvent recovery apparatus, a predetermined time is set for the time corresponding to the time when the adsorption of the organic solvent by the activated carbon fiber adsorbent 28 reaches saturation. Each time elapses, the adsorption of the organic solvent is temporarily suspended to switch to the desorption state, and the superheated steam is supplied so that the adsorbed organic solvent can be desorbed, and the desorbed solvent is condensed and liquefied by the condenser. Alternatively, it may be collected by a specific gravity separator. The solvent that has been desorbed and recovered may be subjected to a post-treatment such as an industrial waste treatment step.
【００３７】上述した一塔タイプの溶剤回収装置を使用
して実施する場合の一例を挙げれば次の通りである。ト
リクロロレチレンで汚染された地下水（汚染濃度10000p
pb）を水量12.5ｍ3／ｈｒで曝気処理槽１に供給すると
ともに、風量 250ｍ3 ／ｈｒ( 水量に対する空気量は20
倍）で空気を曝気処理槽１に供給し、その汚染濃度が0.
4ppm以下になるように浄化処理する。このときの曝気処
理槽１から排出される有機溶剤含有ガスの風量は 250ｍ
3 ／ｈｒ、トリクロロエチレンの平均濃度は 87.7ppmで
あり、この有機溶剤含有ガスを溶剤回収装置１６に供給
して処理する。そして、吸着時間が 120分経過するたび
に、曝気処理槽１での曝気処理を停止して活性炭素繊維
製吸着材に過熱水蒸気を10分間供給する。これらの処理
により、有機溶剤の吸着と脱着再生とを交互に繰り返し
て浄化処理を良好に行うことができる。The following is an example of the case where the above-mentioned one-column type solvent recovery apparatus is used for carrying out the method. Groundwater contaminated with trichlororetylene (contamination concentration 10,000p
pb) is supplied to the aeration tank 1 at a water volume of 12.5 m 3 / hr, and an air volume of 250 m 3 / hr (air volume is 20
2 times), air is supplied to the aeration tank 1, and the pollution concentration is set to 0.
Purify to 4ppm or less. At this time, the air volume of the organic solvent-containing gas discharged from the aeration tank 1 is 250 m.
3 / hr, the average concentration of trichlorethylene is 87.7 ppm, and this organic solvent-containing gas is supplied to a solvent recovery unit 16 for treatment. Then, every time the adsorption time elapses 120 minutes, the aeration treatment in the aeration treatment tank 1 is stopped and superheated steam is supplied to the activated carbon fiber adsorbent for 10 minutes. By these treatments, the purification treatment can be favorably performed by alternately repeating the adsorption of the organic solvent and the desorption regeneration.
【００３８】上述実施例では、トリクロロエチレンで汚
染された地下水の浄化を対象とするために、加熱制御温
度範囲を40〜45℃に設定しているが、その加熱制御温度
範囲は、処理しようとする有機溶剤含有水に応じて適宜
設定すれば良い。In the above embodiment, the heating control temperature range is set to 40 to 45 ° C. in order to purify groundwater contaminated with trichlorethylene, but the heating control temperature range is to be treated. What is necessary is just to set suitably according to the organic solvent containing water.
【００３９】また、上述実施例では、曝気処理槽１とし
て、その槽の上部から有機溶剤含有水を供給し、処理水
を下部から排出するように構成したものを示している
が、本考案としては、例えば、排気口を備えた密閉型の
槽（内部に攪拌スクリューなどの攪拌装置を設けても設
けなくても良い）内の底部側に空気供給管を設け、槽の
上方側一側方から有機溶剤含有水を供給するとともに、
曝気処理後の水を槽の上方側他側方から排出するように
構成するとか、あるいは、50ｍ以上にも及ぶ長さの有底
状の外筒内に中空状の内筒を内嵌し、有機溶剤含有水を
内筒の上部から供給し、内筒内を下降した後、内筒と外
筒との環状空間側に迂回するとともにそこを上昇させて
上部から処理水を排出する、いわゆる深槽タイプの曝気
処理槽を用いるものにも適用できる。In the above-described embodiment, the aeration treatment tank 1 is configured such that water containing an organic solvent is supplied from the upper part of the tank and treated water is discharged from the lower part. For example, an air supply pipe is provided on the bottom side of a closed type tank provided with an exhaust port (with or without a stirring device such as a stirring screw therein), and one side of the upper side of the tank is provided. Supply water containing organic solvent from
The water after the aeration treatment is configured to be drained from the upper side and the other side of the tank, or a hollow inner cylinder is fitted inside a bottomed outer cylinder having a length of 50 m or more, The organic solvent-containing water is supplied from the upper part of the inner cylinder, and after descending in the inner cylinder, it is detoured to the annular space side of the inner cylinder and the outer cylinder and raised there to discharge the treated water from the upper part, so-called deep water. It is also applicable to those using a tank type aeration tank.
【００４０】また、溶剤回収装置１６に供給する前に、
曝気処理槽１からの有機溶剤含有ガスを濃縮装置に供給
して濃縮処理し、その高濃度の有機溶剤含有ガスを溶剤
回収装置１６に供給して有機溶剤を吸着させるように構
成しても良い。Before supplying to the solvent recovery unit 16,
The organic solvent-containing gas from the aeration tank 1 may be supplied to a concentrator to perform a concentration process, and the high-concentration organic solvent-containing gas may be supplied to a solvent recovery device 16 to adsorb the organic solvent. .
【００４１】また、上述実施例では、溶剤回収装置１６
に供給される有機溶剤含有ガスの温度を40〜45℃の範囲
内に制御し、有機溶剤含有ガスの相対湿度が約30％より
も低くなるようにして、吸着効率を十分に向上しながら
電力消費量を低減できるように構成しているが、本考案
としては、例えば、温度を30〜35℃の範囲内に制御し、
相対湿度が約60％よりも低くなるようにして、ある程度
の吸着効率の向上を図りながら、電力消費量をより一層
低減してランニングコストを軽減するように構成しても
良い。In the above embodiment, the solvent recovery device 16
The temperature of the organic solvent-containing gas supplied to the furnace is controlled within the range of 40 to 45 ° C so that the relative humidity of the organic solvent-containing gas is lower than about 30%, and the electric power is sufficiently increased while the adsorption efficiency is sufficiently improved. Although it is configured so that consumption can be reduced, as the present invention, for example, the temperature is controlled within the range of 30 to 35 ° C.,
The relative humidity may be lower than about 60% to improve the adsorption efficiency to some extent, while further reducing the power consumption and the running cost.
【００４２】上記実施例では、吸着塔１７内に円筒状の
活性炭素繊維製吸着材２８を設けて溶剤回収装置１６を
構成しているが、例えば、シート状の活性炭素繊維製吸
着材を多層に積層して収容することにより溶剤回収装置
を構成しても良い。In the above embodiment, the solvent recovery device 16 is constituted by providing the cylindrical activated carbon fiber adsorbent 28 in the adsorption tower 17. The solvent recovery device may be configured by stacking and housing the components.
【００４３】[0043]
【考案の効果】請求項１に係る考案の有機溶剤含有水の
浄化処理装置によれば、活性炭素材製吸着材として吸着
効率の高い活性炭素繊維製吸着材を用い、かつ、活性炭
素繊維製吸着材に供給される有機溶剤含有ガスの相対湿
度を低下するとともにその変動を抑えるから、溶剤回収
装置を小型化でき、かつ、活性炭素繊維製吸着材に吸着
される水分量を減少できて有機溶剤の吸着効率を向上で
きるとともに安定状態に維持でき、有機溶剤を良好に吸
着して回収できるようになった。そのうえ、送風機に供
給する前に有機溶剤含有ガスを加熱し、相対湿度を低下
した有機溶剤含有ガスを送風機に接触させるから、低温
の湿った有機溶剤含有ガスを供給する場合に比べて、有
機溶剤が送風機に付着することを抑制でき、送風機に対
するメンテナンスが簡単になった。 しかも、送風機より
も下流で有機溶剤含有ガスの温度を測定し、その温度を
設定範囲内に維持するから、送風機に起因する温度変化
に影響されずに加熱制御を精度良く行うことができ、確
実に所定温度範囲の有機溶剤含有ガスを溶剤回収装置に
供給し、有機溶剤をより良好に吸着させることができ
る。 すなわち、送風機よりも上流では吸い込みになり、
有機溶剤含有ガスとしては負圧気味になる。一方、送風
機よりも下流では圧縮になり、有機溶剤含有ガスとして
は加圧気味になる。そのため、送風機よりも上流と下流
とでは、有機溶剤含有ガスの圧力に違いがあり、送風機
を通るに伴って温度が上昇する。送風機よりも上流で有
機溶剤含有ガスの温度を測定した場合は、この温度変化
の影響を受けてしまい、加熱制御の精度が低下すること
になる。本考案は、この点を改善できるのである。 According to the device for purifying water containing an organic solvent according to the present invention, an adsorbent made of activated carbon fiber having high adsorption efficiency is used as an adsorbent made of activated carbon material, and an adsorbent made of activated carbon fiber is used. Since the relative humidity of the organic solvent-containing gas supplied to the material is reduced and its fluctuation is suppressed, the solvent recovery device can be downsized, and the amount of water adsorbed by the activated carbon fiber adsorbent can be reduced, so that the organic solvent can be reduced. The adsorption efficiency of the organic solvent can be improved and a stable state can be maintained, and the organic solvent can be favorably adsorbed and recovered. In addition, the air blower
Heat the organic solvent-containing gas before feeding to reduce the relative humidity
The organic solvent-containing gas is brought into contact with the blower,
Compared to supplying a wet organic solvent-containing gas
Solvent can be prevented from adhering to the blower.
Maintenance has become easier. Moreover, from the blower
Also measures the temperature of the organic solvent-containing gas downstream and measures the temperature.
Temperature change due to the blower because it is maintained within the set range
Heating control can be performed accurately without being affected by
Indeed, organic solvent-containing gas in a specified temperature range is sent to the solvent recovery device.
Can supply and adsorb organic solvent better
You. In other words, it is sucked upstream from the blower,
The organic solvent-containing gas tends to have a negative pressure. Meanwhile, blast
It is compressed downstream of the machine and becomes a gas containing organic solvent.
Becomes slightly pressurized. Therefore, upstream and downstream of the blower
There is a difference in the pressure of the organic solvent containing gas,
The temperature rises as it passes. Yes upstream of blower
If the temperature of the solvent-containing gas is measured, this
The accuracy of heating control
become. The present invention can improve this point.
【００４４】[0044]
【００４５】[0045]
【００４６】また、請求項２に係る考案の有機溶剤含有
水の浄化処理装置によれば、加熱制御温度範囲を40〜45
℃に設定し、有機溶剤含有ガスの相対湿度を30％以下に
維持するとともに不必要な加熱を行わないから、電力消
費量を低減してランニングコストを極力低減するととも
に脱着再生に至る時間を極力長くしながら、有機溶剤を
良好に吸着できる。[0046] Further, according to the purification treatment apparatus of the organic solvent-containing water devise according to claim 2, the heating control temperature range 40 to 45
℃, the relative humidity of the organic solvent-containing gas is kept at 30% or less, and unnecessary heating is not performed. Therefore, the power consumption is reduced, the running cost is reduced as much as possible, and the time required for desorption regeneration is minimized. The organic solvent can be satisfactorily absorbed while the length is long.
【図１】本考案に係る有機溶剤含有水の浄化処理装置の
実施例を示すフローシートである。FIG. 1 is a flow sheet showing an embodiment of a purification apparatus for water containing an organic solvent according to the present invention.
【図２】水分吸着等温線のグラフである。FIG. 2 is a graph of a moisture adsorption isotherm.
【図３】トリクロロエチレンの吸着等温線のグラフであ
る。FIG. 3 is a graph of an adsorption isotherm of trichlorethylene.
【図４】実施例における有機溶剤含有ガスの温度および
相対湿度それぞれを吸着時間ごとの値で示すグラフであ
る。FIG. 4 is a graph showing a temperature and a relative humidity of an organic solvent-containing gas in Examples as a value for each adsorption time.
【図５】実施例における吸着破過曲線を示すグラフであ
る。FIG. 5 is a graph showing an adsorption breakthrough curve in an example.
【図６】比較例における有機溶剤含有ガスの温度および
相対湿度それぞれを吸着時間ごとの値で示すグラフであ
る。FIG. 6 is a graph showing the temperature and relative humidity of an organic solvent-containing gas in Comparative Example as values for each adsorption time.
【図７】比較例における吸着破過曲線を示すグラフであ
る。FIG. 7 is a graph showing an adsorption breakthrough curve in a comparative example.
【図８】従来例を示す全体概略縦断面図である。FIG. 8 is an overall schematic longitudinal sectional view showing a conventional example.
１…曝気処理槽１４…第２の送風機 １５…ガス配管 １６…溶剤回収装置 １７…吸着塔 ２２…溶剤回収管 ２７…蒸気供給管 ２８…活性炭素繊維製吸着材 ２９…加熱手段としての電気ヒータ ３０…温度センサ ３１…加熱制御装置DESCRIPTION OF SYMBOLS 1 ... Aeration tank 14 ... Second blower 15 ... Gas piping 16 ... Solvent recovery apparatus 17 ... Adsorption tower 22 ... Solvent recovery pipe 27 ... Steam supply pipe 28 ... Activated carbon fiber adsorbent 29 ... Electric heater as heating means 30: temperature sensor 31: heating control device
───────────────────────────────────────────────────── フロントページの続き (72)考案者 前田 武士 大阪市中央区平野町四丁目１番２号 大 阪瓦斯株式会社内 (56)参考文献 特開 昭61−200837（ＪＰ，Ａ) 特開 平２−169085（ＪＰ，Ａ) 特開 昭62−132523（ＪＰ，Ａ) 特公 平１−55888（ＪＰ，Ｂ２) 特公 平２−59814（ＪＰ，Ｂ２) 環境庁大気保全局特殊公害課編，「悪 臭防止マニュアル（▲ＩＩＩ▼）」，第 １刷，公害対策技術同友会，1980年６月 10日，Ｐ．22−28 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takeshi Maeda 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi Inside Osaka Gas Co., Ltd. (56) References JP-A-61-200837 (JP, A) JP-A 2-169085 (JP, A) JP-A-62-132523 (JP, A) JP-B-1-55888 (JP, B2) JP-B 2-59814 (JP, B2) Special Pollution Division, Air Quality Bureau, Environment Agency Ed., "Odor Control Manual (III)", 1st print, Pollution Control Technology Doyukai, June 10, 1980, P. 22-28
Claims (2)
有機溶剤を含有した有機溶剤含有ガスを取り出す曝気処
理槽を設けるとともに、有機溶剤含有ガス中の有機溶剤
を吸着する活性炭素材製吸着材を収容した溶剤回収装置
を設け、前記曝気処理槽と前記溶剤回収装置とを送風機
を介装したガス配管を介して接続し、前記曝気処理槽か
ら取り出された有機溶剤含有ガスを前記溶剤回収装置に
供給するとともに、有機溶剤を吸着した後のガスを排出
可能に構成し、かつ、前記活性炭素材製吸着材を間にし
て、吸着した有機溶剤を脱着する過熱水蒸気を供給する
蒸気供給管と、脱着した有機溶剤を回収する溶剤回収管
とを前記溶剤回収装置に接続した有機溶剤含有水の浄化
処理装置において、 前記活性炭素材製吸着材として活性炭素繊維製吸着材を
用いるとともに、前記ガス配管の途中箇所の前記送風機
よりも上流側に、前記溶剤回収装置に供給される有機溶
剤含有ガスを加熱する加熱手段を設け、かつ、前記加熱
手段で加熱された有機溶剤含有ガスの温度を測定する温
度センサを、前記送風機よりも下流側に設けるととも
に、前記温度センサで測定された温度を設定範囲内に維
持するように前記加熱手段を作動させる加熱制御装置を
備えたことを特徴とする有機溶剤含有水の浄化処理装
置。1. Aeration treatment by supplying water containing an organic solvent,
In addition to providing an aeration treatment tank for taking out an organic solvent-containing gas containing an organic solvent, a solvent recovery device containing an activated carbon material adsorbent for adsorbing the organic solvent in the organic solvent-containing gas is provided, and the aeration treatment tank and the solvent are provided. Blower with collection device
Connected through a gas pipe interposed , supplies the organic solvent-containing gas taken out from the aeration tank to the solvent recovery device, and is configured to be able to discharge the gas after adsorbing the organic solvent, and An organic solvent in which the activated carbon material adsorbent is interposed, a steam supply pipe for supplying superheated steam for desorbing the adsorbed organic solvent, and a solvent recovery pipe for recovering the desorbed organic solvent to the solvent recovery apparatus. In the apparatus for purifying contained water, an activated carbon fiber adsorbent is used as the activated carbon adsorbent, and the blower is provided at an intermediate position of the gas pipe.
Further upstream , a heating means for heating the organic solvent-containing gas supplied to the solvent recovery device is provided, and a temperature sensor for measuring the temperature of the organic solvent-containing gas heated by the heating means is provided by the blower Further comprising a heating control device for operating the heating means so as to maintain the temperature measured by the temperature sensor within a set range, further comprising a heating control device provided downstream of the organic solvent-containing water. .
る設定温度範囲が40〜45℃である有機溶剤含有水の浄化
処理装置。2. The heating control device according to claim 1 ,
An organic solvent-containing water purification treatment device whose set temperature range is 40 to 45 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991081394U JP2564865Y2 (en) | 1991-09-10 | 1991-09-10 | Purification equipment for water containing organic solvents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991081394U JP2564865Y2 (en) | 1991-09-10 | 1991-09-10 | Purification equipment for water containing organic solvents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0526179U JPH0526179U (en) | 1993-04-06 |
| JP2564865Y2 true JP2564865Y2 (en) | 1998-03-11 |
Family
ID=13745092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991081394U Expired - Lifetime JP2564865Y2 (en) | 1991-09-10 | 1991-09-10 | Purification equipment for water containing organic solvents |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564865Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009160583A (en) * | 2009-04-20 | 2009-07-23 | Toyobo Co Ltd | Method for treating organic solvent gas |
| JP2012050959A (en) * | 2010-09-03 | 2012-03-15 | Jfe Engineering Corp | Deodorizing device and deodorizing method |
| JP6582851B2 (en) * | 2015-10-13 | 2019-10-02 | 東洋紡株式会社 | Organic solvent recovery system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61200837A (en) * | 1985-03-01 | 1986-09-05 | Ebara Infilco Co Ltd | Treatment of exhaust gas |
| JPS6455888A (en) * | 1987-08-26 | 1989-03-02 | Nec Corp | Semiconductor element |
| JP2775789B2 (en) * | 1988-12-20 | 1998-07-16 | 東洋紡績株式会社 | Wastewater treatment method |
-
1991
- 1991-09-10 JP JP1991081394U patent/JP2564865Y2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 環境庁大気保全局特殊公害課編，「悪臭防止マニュアル（▲ＩＩＩ▼）」，第１刷，公害対策技術同友会，１９８０年６月１０日，Ｐ．２２−２８ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526179U (en) | 1993-04-06 |
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