【０００１】
【発明の属する技術分野】
本発明は、産業界が排出する産業廃棄物又は都市ゴミを大量に焼却処分した際に発生する焼却灰等を保管する管理型廃棄物処分場から排出させる排水中より有害化学物質を除去する際に使用する汚染排水浄化処理装置に関する。
【０００２】
【従来の技術】
従来の管理型処分場で埋め立てられた焼却灰又は都市ゴミ中には一般的に極めて高濃度の有害物質が含まれているため、長時間かけて雨水等がこれら廃棄物に浸透し有害物質を溶出し処分場の最底部の排水管より処分場外に排出されている。既に、一部分の廃棄物処分場では社会問題になりつつあるが排水中の有害物質、特にＰＣＢ、ダイオキシン、重金属等の除却が解決できずにいる。
【０００３】
本発明の課題は管理型廃棄物処分場又は焼却場の汚染排水の問題を解消する汚染排水浄化処理装置を提供することにある。
【０００４】
【課題を解決するための手段】
前記課題を達成するため、本発明に係る汚染排水浄化処理装置においては、排水溶剤混合撹拌槽の中心部に超高速回転カプセルを取付けカプセル内より超微細粒子状の溶剤を汚染排水中に噴出させ排水中の有害物質を効率的に溶解させることが出来るものである。
【０００５】
上記の超高速回転溶剤噴出混合機は回転軸及び回転シャフト、カプセルは一体型に作成されており、その中心は中空でありこの超高速回転モーターの回転軸が超高速回転（毎分９，０００回転以上）することにより汚染排水中の回転シャフト及びカプセルは水中で超高速回転しカプセル内の汚染排水は遠心力の働きでカプセルの小孔より放出されカプセル内は真空状態となっている。超高速回転モーターの回転軸の最上部中空より有機溶剤を給入することにより中空内を通って溶剤はカプセル内に達し、カプセルの遠心力により超微細な溶剤を猛烈な勢いで放出させる。
【０００６】
なお、汚染排水浄化処理装置に配置されている各混合槽及びエアーレション槽並びに各装置は自動的に運転出来るよう管理装置で管理し制御できるよう形成される。
【０００７】
汚染排水中の有害化学物質及び重金属等を溶解、付着除去する物質及び溶剤に関して説明する。汚染排水中の重金属及び金属物質は自然環境に安全な無機物質で作成された凝集剤を使用し沈澱除去する。また、有害化学物質は水より比重の軽い有機溶剤か石油等の製品を使用し汚染排水中の有害化学物を溶解させ汚染排水中より除去する。
【０００８】
従って、汚染排水浄化処理装置を使用すれば、汚染排水を排出することによって生ずる自然環境汚染の問題を解消することができるものである。
【０００９】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【００１０】
ここで、図１は本発明の汚染排水浄化処理装置の概略構成図、図２は本発明の超高速回転溶剤噴出混合機の断面図である。
【００１１】
図１において、汚染排水浄化処理装置のＴ１は溶剤混合撹拌沈澱槽であり、Ｔ２は溶剤混合撹拌溶解槽であり、Ｔ３は溶剤浮上エアーレション槽で横成されている。
【００１２】
超高速回転溶剤噴出混合機Ｍは汚染排水浄化処理装置のＴ１、Ｔ２における溶剤混合撹拌槽の最上部に支持固定されている。Ｔ３の溶剤浮上エアーレション槽の最底部には微細気泡発生器２３が配置される。
【００１３】
また、図２において超高速回転溶剤噴出混合機Ｍは回転駆動軸中空超高速モーター１０と中空回転シャフト１２及びカプセル１３が一体型で作成されておりモーター台座１６に固定されている。
【００１４】
なお、超高速回転溶剤噴出混合機Ｍの最上部には密封カップ１７が取付られ、その中心に溶剤注入管１８が固定され回転軸の中空に接触しないように差入れられており中空回転シャフトの先端にはカプセル１３が取付られカプセル１３には無数の小孔１４が開けられている。
【００１５】
このように構成されている汚染排水浄化処理装置の使用方法について説明する。
【００１６】
まず、汚染排水を溶剤混合撹拌沈澱槽Ｔ１の汚染排水送入口２０より汚染排水を送入完了後、超高速回転溶剤噴出混合機Ｍが超高速回転を始めると無機物質凝集剤槽３０より輸送用配管２５を通してＴ１槽内に一定量の凝集剤が供給され汚染排水調整槽３８Ａより調整溶剤が混合槽３１に送られ水道水３２からの水と混合され輸送配管２５を通って溶剤注入管１８に送られ超高速回転している中空回転軸、中空回転シャフト１２の中空を通ってカプセル１３内に送入される。さらにカプセル１３に開けられている無数の小孔１４より猛烈な勢いで溶剤が汚染排水中に放出され無機物質凝集剤共に撹拌混合され汚染排水中の重金属等を付着させる。
【００１７】
溶剤混合撹拌沈殿槽Ｔ１内で撹拌混合が終了後、超高速回転溶剤噴出混合機Ｍの回転を停止し汚染排出も静止することにより重金属等に付着した無機凝集物質は槽Ｔ１の低部に沈澱する。さらに沈澱完了後に沈澱物質上部の排水出口２６より汚染排水を取り出し圧送用ポンプ２４で溶剤混合撹拌溶解槽Ｔ２内に送入し送入完了後に槽Ｔ１の底部の排水出口２６が開かれ送入管２１と圧送用ポンプ２４で脱水機３６に送入しそこで無機物質と水を分離し水は輸送配管２５で槽Ｔ２内に送入する。
【００１８】
次に、有害化学物質を溶解させる溶剤を説明する。水より比重が軽く、難水性であり有害化学物質であるＰＣＢ、ダイオキシン等が溶解しやすい溶剤として同系列にあるトルエン、シンナー、アセトン等があり又は石油製品としてガソリン、軽油、灯油等も使用することができる。ここではシンナーを使用して説明をする。
【００１９】
槽Ｔ１から重金属等が除去された汚染排水を溶剤混合撹拌溶解槽Ｔ２内に送入完了後槽Ｔ２の最上部に設置されている超高速回転溶剤噴出混合機Ｍが超高速回転を始めると溶剤槽３３より輸送用配管２５を通って溶剤注入管１８より回転シャフト１２の中空内にシンナーを注入することによりカプセル１３内に送りこまれる。
【００２０】
なお、槽Ｔ２内のカプセル１３は超高速回転をしておりカプセル１３内部は遠心力の働きで真空状態になっており、そこにシンナーが注入されることによりカプセル１３の無数の小孔１４より猛烈な勢いで汚染排水中に超微細なシンナーとなり噴出され汚染排水中の有害化学物質を溶解させる。
【００２１】
上記の超高速回転カプセル１３の小孔１４より噴出された超微細なシンナーと汚染排水が十分に撹拌混合された時点で溶剤槽３３からのシンナーの供給が停止し次に排水調整溶剤槽３８Ｂより調整用溶剤が混合機３１で水と混合され溶剤注入管１８を通ってカプセル１３に供給されカプセルの小孔１４より汚染排水中に噴出され汚染のｐＨ等を調整される。
【００２２】
なお、槽Ｔ２内の汚染排水が調整後凝集剤槽３０より凝集剤が槽Ｔ２内に供給され汚染排水中のＢＯＤ、ＣＯＤ、ＳＳ等を混合撹拌し凝集剤に付着させ十分に撹拌混合後に超高速回転溶剤噴出混合機Ｍが回転を停止する。
【００２３】
よって、槽Ｔ２内の汚染排水が静止後に汚染排水に混合されたシンナーと凝集物質が徐々に分離しシンナーに溶解される有害化学物質ＰＣＢ、ダイオキシン等がシンナーと共に浮上し凝集剤に付着したＢＯＤ、ＣＯＤ、ＳＳ等は沈澱する。
【００２４】
次に、槽Ｔ２内で三層に分離した最上部分のＰＣＢ、ダイオキシン等を溶解したシンナーは上部の排出用弁２２が開かれ輸送用配管２５を通し溶剤蒸発器３５に送入される。中間部分の排水は中間の排出口２６より排出され圧送用ポンプ２４で槽Ｔ３に送入される。Ｔ１、Ｔ２槽の底部に沈澱する沈澱物質は排出口２６が開かれて送入管２１、圧送用ポンプ２４を通して脱水機３６内に送入され凝集物質と水に分離された後、水層部は輸送用配管２５で槽Ｔ２内に送入される。
【００２５】
なお、溶剤蒸発器３５内に搬入された有害化学物質を溶解したシンナーは有害物質とシンナーとに分離した、シンナーは溶剤回収器３４で回収し溶剤槽３３に貯蔵し、シンナーと分離した有害化学物質は燃焼用特殊バーナー４１で焼却処分する。
【００２６】
一方、溶剤浮上エアーレション槽Ｔ３内に送入された排水はｐＨ調整、ＢＯＤ、ＣＯＤ、ＳＳ等を除去された排水であるが、自然分離しずらい超微細なシンナーが含まれている。このため槽Ｔ３の底部分全面に配置した微細気泡発生器２３から微細気泡を発生させ排水を静止させながらエアーレションし微細気泡に微量のシンナーを気泡に取込ませ水面に浮上させ、気化したシンナーは溶剤回収器３４で回収し空気とシンナーに分離しシンナーは溶剤蒸発器３５に送入する。
【００２７】
溶剤浮上エアーレション槽Ｔ３内の排水中のシンナーを排水表面に浮上させ槽Ｔ３上部の排出用弁２２より浮上したシンナーを溶剤蒸発器３５に送入後、排出口２６より槽Ｔ３内の排水を８０％前後にまで徐々に排出する。
【００２８】
次に、脱水機３６により水と凝集物質に分離された凝集物質は第一燃焼機４２のホッパー４４に搬入され、第一燃焼機４２で無機凝集剤に付着している水分及び有機物質、化学物質等を燃焼処理し、排気ガス等は第二燃焼室４３で完全に燃焼分解する。また、凝集剤に付着している重金属等は凝集剤と共に乾燥して第一燃焼機４２から排出され回収する。
【００２９】
なお、溶剤蒸発器３５でシンナーと分離されたＰＣＢ、ダイオキシン等の有害化学物質は回収され第一燃焼機４２の特殊バーナー４１で燃料共に焼却分解する。
【００３０】
前記の、汚染排水中の有害化学物質を溶解させる溶剤を石油製品の軽油を使用した場合の汚染排水浄化処理装置図１の使用を簡単に説明する。
【００３１】
槽Ｔ１までの使用方法は溶剤としてシンナー使用と同じであり、槽Ｔ２に一次処理した汚染排水を送入完了後に溶剤槽３３内の溶剤として軽油が貯蔵されており、槽Ｔ２の超高速回転溶剤噴出混合機Ｍが超高速回転を始めると溶剤注入管１８を通してカプセル１３内に送入されカプセル１３の小孔１４より猛烈な勢いで汚染排水中に超微細な軽油となり噴出され汚染排水中の有害化学物質を溶解する。
【００３２】
なお、軽油を溶剤として使用する場合の工程はシンナー使用の［００２１］、［００２２］、［００２３］までは同じであり槽Ｔ２内で三層に分離した最上部の有害化学物質を溶解した軽油は上部の排出弁２２が開かれ槽Ｔ２外に排出され燃料槽４０に貯蔵される。中間部分以下はシンナー使用と同じ工程である。
【００３３】
次に、軽油を溶剤として使用した工程はシンナーと同じであるがエアーレションで気化した軽油又は空気は第一燃焼機４２に送入し焼却し排水表面に浮上した軽油は槽Ｔ３上部の排出用弁２２より回収し燃料槽４０に貯蔵し燃料として使用する。
【００３４】
上記、記載の有機溶剤としてシンナーを使用した場合は有害化学物質が溶解したシンナー及び気化したシンナーは回収、再成使用せず直接回収し第一燃焼機４２で焼却処分することもできる。
【００３５】
【発明の効果】
大量の無機物質、有害化学物質及び重金属等を含む大量の廃棄物や焼却灰は埋立地及び管理型処分場で管理されているが自然の中に放置しているために雨水及び自然流水が廃棄物や焼却灰中を通って、ダイオキシン、重金属等を溶解する。これらの排水中に含まれる無機物質や有害
物質等は未処理のまま排水されており、排水基準内におさめるために大量の水で稀釈して排水しているのが現状である。しかしながら、本発明の汚染排水浄化処理装置を使用すれば排水することによって生じる、上記の諸問題を解消することが出来るものである。
【図面の簡単な説明】
【図１】本発明の汚染排水浄化処理装置の概略構成の断面図である。
【図２】本発明の超高速回転溶剤噴出混合機の断面図である。
【符号の説明】
Ｔ１：溶剤混合撹拌沈澱槽
Ｔ２：溶剤混合撹拌溶解槽
Ｔ３：溶剤浮上エアーレション槽
Ｍ：超高速回転溶剤噴出混合機
１０：回転駆動軸中空超高速モーター
１１：送入口
１２：中空回転シャフト
１３：カプセル
１４：小孔
１５：保護筒
１６：モーター台座
１７：密封カップ
１８：溶剤注入管
２０：汚染排水送入口
２１：送入管
２２：溶剤排出用弁
２３：微細気泡発生器
２４：圧送用ポンプ
２５：輸送用配管
２６：排出口
３０：凝集剤槽
３１：混合槽
３２：水道管
３３：溶剤槽
３４：溶剤回収器
３５：溶剤蒸発器
３６：脱水機
３７：空気供給機
３８：排水調整剤槽
４０：燃料槽
４１：特殊バーナー
４２：第一燃焼機
４３：第二燃焼室
４４：ホッパー
４５：焼却灰受[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for removing harmful chemical substances from wastewater discharged from a managed waste disposal site that stores incinerated ash generated when a large amount of industrial waste or municipal waste discharged by industry is incinerated. The present invention relates to a polluted wastewater purification treatment device used for a wastewater treatment.
[0002]
[Prior art]
Since incinerated ash or municipal refuse buried in conventional managed landfills generally contains extremely high concentrations of harmful substances, rainwater etc. penetrates these wastes over a long period of time to remove harmful substances. It is eluted and discharged out of the disposal site through the drainage pipe at the bottom of the disposal site. Already, some waste disposal sites are becoming a social problem, but the removal of harmful substances in wastewater, especially PCBs, dioxins, heavy metals, etc., has not been solved.
[0003]
It is an object of the present invention to provide a polluted wastewater purification treatment apparatus that solves the problem of polluted wastewater in a managed waste disposal site or incineration plant.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, in the apparatus for purifying contaminated wastewater according to the present invention, an ultrahigh-speed rotating capsule is attached to the center of the wastewater solvent mixing and stirring tank, and ultrafine particulate solvents are ejected from inside the capsule into the contaminated wastewater. It can dissolve harmful substances in wastewater efficiently.
[0005]
The above-mentioned ultra-high-speed rotary solvent jet mixer has a rotary shaft, a rotary shaft and a capsule formed integrally, and the center thereof is hollow, and the rotary shaft of this ultra-high-speed rotary motor rotates at an ultra-high speed (9,000 per minute). As a result, the rotating shaft and the capsule in the contaminated wastewater are rotated at a very high speed in water, and the contaminated wastewater in the capsule is discharged from the small hole of the capsule by the action of centrifugal force, and the inside of the capsule is in a vacuum state. By supplying the organic solvent from the uppermost hollow portion of the rotating shaft of the ultrahigh-speed rotating motor, the solvent passes through the hollow portion and reaches the inside of the capsule, and the ultrafine solvent is released with a violent force by the centrifugal force of the capsule.
[0006]
In addition, each mixing tank and aeration tank disposed in the contaminated wastewater purification treatment apparatus and each apparatus are formed so that they can be automatically operated and managed and controlled by a management apparatus.
[0007]
Substances and solvents that dissolve and adhere to and remove harmful chemical substances and heavy metals in contaminated wastewater will be described. Heavy metals and metallic substances in contaminated wastewater are removed by sedimentation using a coagulant made of inorganic substances that are safe for the natural environment. In addition, harmful chemicals are dissolved in effluents of polluted effluent by using products such as organic solvent or petroleum with lighter specific gravity than water and removed from polished effluent.
[0008]
Therefore, the use of the polluted wastewater purifying apparatus can solve the problem of natural environmental pollution caused by discharging the polluted wastewater.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
Here, FIG. 1 is a schematic configuration diagram of a contaminated wastewater purification treatment apparatus of the present invention, and FIG. 2 is a cross-sectional view of an ultrahigh-speed rotary solvent jet mixer of the present invention.
[0011]
In FIG. 1, T1 is a solvent mixing / stirring settling tank, T2 is a solvent mixing / stirring / dissolving tank, and T3 is a solvent floating air lotion tank.
[0012]
The ultrahigh-speed rotary solvent jet mixer M is supported and fixed to the uppermost part of the solvent mixing and stirring tank at T1 and T2 of the polluted wastewater purification treatment device. The microbubble generator 23 is arranged at the bottom of the solvent floating air-conditioning tank of T3.
[0013]
Further, in FIG. 2, the ultrahigh-speed rotary solvent jetting and mixing machine M has a rotary drive shaft hollow ultrahigh-speed motor 10, a hollow rotary shaft 12 and a capsule 13 that are integrally formed and fixed to a motor base 16.
[0014]
A sealing cup 17 is mounted on the top of the ultrahigh-speed rotary solvent jetting mixer M, and a solvent injection pipe 18 is fixed at the center thereof and inserted so as not to contact the hollow of the rotary shaft. Is provided with a capsule 13 and countless small holes 14 are formed in the capsule 13.
[0015]
A method of using the thus configured contaminated wastewater purification treatment device will be described.
[0016]
First, after the contaminated effluent is completely fed from the contaminated effluent inlet 20 of the solvent mixing, stirring and settling tank T1, the ultrahigh-speed rotating solvent jetting and mixing machine M starts to rotate at an ultra-high speed. A certain amount of coagulant is supplied into the T1 tank through the pipe 25, and the adjusted solvent is sent from the contaminated drainage adjusting tank 38A to the mixing tank 31 and mixed with the water from the tap water 32. It is fed into the capsule 13 through the hollow rotary shaft and the hollow rotary shaft 12 which are sent and rotated at a very high speed. Further, the solvent is released into the contaminated wastewater with a violent force from the myriad of small holes 14 opened in the capsule 13, and the inorganic substance coagulant is mixed with the stirrer to adhere heavy metals and the like in the contaminated wastewater.
[0017]
After the stirring and mixing is completed in the solvent mixing and stirring tank T1, the rotation of the ultra-high-speed solvent jet mixer M is stopped, and the pollution discharge is stopped, so that the inorganic coagulated substances attached to the heavy metals and the like settle in the lower part of the tank T1. I do. Further, after the precipitation is completed, the contaminated wastewater is taken out from the drainage outlet 26 on the upper part of the sedimented substance and is sent into the solvent mixing / stirring tank T2 by the pump 24 for pumping. The water is fed into a dehydrator 36 by the pump 21 for pumping and the inorganic substance and water are separated therefrom, and the water is fed into the tank T2 by the transport pipe 25.
[0018]
Next, a solvent for dissolving harmful chemical substances will be described. Solvents with lower specific gravity than water, such as PCB, dioxin, etc., which are difficult to dissolve and are difficult to dissolve, are toluene, thinner, acetone, etc. in the same series as solvents, or gasoline, light oil, kerosene, etc. are used as petroleum products. be able to. Here, the description will be made using a thinner.
[0019]
When the contaminated wastewater from which heavy metals and the like have been removed from the tank T1 has been sent into the solvent mixing / stirring tank T2, and the ultrahigh-speed rotating solvent jetting mixer M installed at the top of the tank T2 starts ultrahigh-speed rotation, the solvent is removed. The thinner is injected from the tank 33 through the transport pipe 25 into the hollow of the rotary shaft 12 through the solvent injection pipe 18 and is sent into the capsule 13.
[0020]
In addition, the capsule 13 in the tank T2 is rotating at a very high speed, and the inside of the capsule 13 is in a vacuum state by the action of centrifugal force. It becomes a very fine thinner in the polluted wastewater with a violent momentum and is ejected and dissolves harmful chemical substances in the polluted wastewater.
[0021]
When the ultrafine thinner spouted from the small hole 14 of the ultrahigh-speed rotating capsule 13 and the contaminated wastewater are sufficiently stirred and mixed, the supply of the thinner from the solvent tank 33 is stopped, and then the wastewater is adjusted from the drainage adjusting solvent tank 38B. The adjusting solvent is mixed with water in the mixer 31 and supplied to the capsule 13 through the solvent injection pipe 18 and is ejected from the small holes 14 of the capsule into the contaminated wastewater to adjust the pH and the like of the contamination.
[0022]
After the contaminated wastewater in the tank T2 is adjusted, the coagulant is supplied from the coagulant tank 30 into the tank T2, and BOD, COD, SS, etc. in the contaminated wastewater are mixed and adhered to the coagulant, and after sufficient stirring and mixing, The high-speed rotation solvent jet mixer M stops rotating.
[0023]
Therefore, the thinner mixed with the contaminated wastewater after the contaminated wastewater in the tank T2 is stopped and the flocculant are gradually separated, and the harmful chemical substances PCB, dioxin, etc. dissolved in the thinner float up together with the thinner and the BOD attached to the flocculant, COD, SS, etc. precipitate.
[0024]
Next, the thinner in which the PCB, dioxin and the like in the uppermost portion separated into three layers in the tank T2 is sent to the solvent evaporator 35 through the transport pipe 25 with the upper discharge valve 22 opened. The drainage in the middle portion is discharged from the middle discharge port 26 and sent to the tank T3 by the pump for pressure feeding 24. The sedimented substance which precipitates at the bottom of the T1 and T2 tanks is sent into the dehydrator 36 through the inlet pipe 21 and the pressure pump 24 after the discharge port 26 is opened, and is separated into coagulated substance and water. Is transported into the tank T2 by the transport pipe 25.
[0025]
The thinner in which the harmful chemical substance carried into the solvent evaporator 35 was dissolved was separated into the harmful substance and the thinner, and the thinner was recovered by the solvent recovery unit 34 and stored in the solvent tank 33, and separated from the thinner. The substances are incinerated by a special burner 41 for combustion.
[0026]
On the other hand, the wastewater sent into the solvent floating air-reaction tank T3 is wastewater from which pH adjustment, BOD, COD, SS, etc. have been removed, but contains ultrafine thinner which is difficult to separate naturally. For this reason, microbubbles are generated from the microbubble generator 23 disposed on the entire bottom portion of the tank T3, and air-restrained while the drainage is stopped, a small amount of thinner is incorporated into the microbubbles, and the microbubbles are floated on the water surface and vaporized. The thinner is recovered by a solvent recovery unit 34 and separated into air and thinner, and the thinner is sent to a solvent evaporator 35.
[0027]
The thinner in the drainage in the solvent floating air-reaction tank T3 floats on the drainage surface, and the thinner floated from the discharge valve 22 in the upper part of the tank T3 is sent to the solvent evaporator 35, and then the drainage in the tank T3 is discharged from the outlet 26. Is gradually discharged to about 80%.
[0028]
Next, the coagulated substance separated into water and the coagulated substance by the dehydrator 36 is carried into the hopper 44 of the first combustor 42, where the water and the organic substance, The substances and the like are burned, and the exhaust gas and the like are completely burned and decomposed in the second combustion chamber 43. Further, heavy metals and the like adhering to the coagulant are dried together with the coagulant, discharged from the first combustor 42, and collected.
[0029]
The harmful chemicals such as PCB and dioxin separated from the thinner in the solvent evaporator 35 are collected and incinerated and decomposed together with the fuel in the special burner 41 of the first combustor 42.
[0030]
A brief description will be given of the use of the polluted wastewater purifying apparatus shown in FIG. 1 when light oil of petroleum products is used as the solvent for dissolving harmful chemical substances in the polluted wastewater.
[0031]
The method of use up to the tank T1 is the same as the use of a thinner as a solvent. After the completion of sending the first-treated contaminated wastewater to the tank T2, light oil is stored as a solvent in the solvent tank 33. When the jet mixer M starts to rotate at a very high speed, it is sent into the capsule 13 through the solvent injection pipe 18 and becomes a very fine light oil in the polluted waste water with a violent force from the small hole 14 of the capsule 13 and is ejected, thereby causing harm in the polluted waste water. Dissolve chemicals.
[0032]
The steps in the case where light oil is used as a solvent are the same up to [0021], [0022], and [0023] using thinner, and light oil in which the uppermost harmful chemical substance separated into three layers in the tank T2 is dissolved. The upper discharge valve 22 is opened and discharged from the tank T2, and stored in the fuel tank 40. The following steps are the same as those using the thinner.
[0033]
Next, the process using light oil as a solvent is the same as that for thinner, but light oil or air vaporized by airless is sent to the first combustor 42 and incinerated, and light oil floating on the drain surface is discharged to the upper part of the tank T3. It is collected from the valve 22 and stored in the fuel tank 40 and used as fuel.
[0034]
When the thinner is used as the organic solvent described above, the thinner in which the harmful chemical substance is dissolved and the thinner vaporized can be directly collected without being recovered and re-used, and incinerated in the first combustor 42.
[0035]
【The invention's effect】
A large amount of waste and incinerated ash containing a large amount of inorganic substances, harmful chemical substances, heavy metals, etc. are managed in landfills and managed landfills, but because they are left in nature, rainwater and natural running water are discarded. Dissolves dioxins, heavy metals, etc. through materials and incineration ash. Inorganic substances and harmful substances contained in these wastewaters are drained without being treated, and at present, they are diluted with a large amount of water and drained to keep within the drainage standards. However, the use of the apparatus for purifying contaminated wastewater of the present invention can solve the above-mentioned problems caused by drainage.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a schematic configuration of a polluted wastewater purification treatment apparatus of the present invention.
FIG. 2 is a cross-sectional view of the ultrahigh-speed rotating solvent jet mixer of the present invention.
[Explanation of symbols]
T1: Solvent mixing, stirring and settling tank T2: Solvent mixing, stirring and dissolving tank T3: Solvent floating air-reaction tank M: Ultra high-speed rotating solvent jet mixer 10: Rotating drive shaft hollow Ultra high-speed motor 11: Inlet 12: Hollow rotating shaft 13 : Capsule 14: Small hole 15: Protective cylinder 16: Motor pedestal 17: Sealing cup 18: Solvent injection pipe 20: Contaminated drainage inlet 21: Inlet pipe 22: Solvent discharge valve 23: Fine bubble generator 24: For pressure feed Pump 25: transportation pipe 26: outlet 30: flocculant tank 31: mixing tank 32: water pipe 33: solvent tank 34: solvent recovery unit 35: solvent evaporator 36: dehydrator 37: air supply unit 38: drainage adjustment Fuel tank 40: Fuel tank 41: Special burner 42: First burner 43: Second combustion chamber 44: Hopper 45: Incineration ash tray
