JP3367380B2 - Method and apparatus for removing soil contaminants - Google Patents
Method and apparatus for removing soil contaminantsInfo
- Publication number
- JP3367380B2 JP3367380B2 JP12518397A JP12518397A JP3367380B2 JP 3367380 B2 JP3367380 B2 JP 3367380B2 JP 12518397 A JP12518397 A JP 12518397A JP 12518397 A JP12518397 A JP 12518397A JP 3367380 B2 JP3367380 B2 JP 3367380B2
- Authority
- JP
- Japan
- Prior art keywords
- pollutants
- belt
- soil
- shaped adsorbent
- adsorbent
- 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 - Fee Related
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、土壌汚染物質の除
去方法および除去装置に関し、特に、汚染物質の回収除
去効率を向上させる技術に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for removing soil pollutants, and more particularly to a technique for improving the efficiency of collecting and removing pollutants.
【０００２】[0002]
【従来の技術】原油，重油，灯油，軽油，有機溶媒など
の各種油類の貯留施設の近傍においては、油類の貯槽あ
るいは貯槽に接続された油類の送，排出用配管部の亀裂
部分などから油類の土壌中への流出が発生することがあ
る。2. Description of the Related Art In the vicinity of a storage facility for various oils such as crude oil, heavy oil, kerosene, light oil, and organic solvent, a cracked portion of an oil storage tank or a pipe for sending and discharging oil connected to the storage tank Oil may be spilled into the soil from such sources.
【０００３】流出した油類は、土壌中に流通する地下水
を介して拡散し、汚染域が大きく広がり、大きな社会問
題となることもある。The spilled oil diffuses through the groundwater flowing in the soil, and the contaminated area spreads widely, which may cause a great social problem.
【０００４】地下水がこのような油類で汚染されると、
飲料用として適さなくなるなどの問題があるので、従来
は、以下のような方法で汚染物質（各種油類）の除去，
回収を行っていた。When groundwater is polluted with such oils,
Since there are problems such as being unsuitable for beverages, conventionally, the following methods have been used to remove pollutants (various oils),
It was being collected.
【０００５】地下水中の汚染物質を除去，回収する際に
は、まず、汚染物質が含まれている地下水流と交叉する
ように掘削孔を掘削し、汚染された地下水を水中ポンプ
などで汲み上げ、地上側に設置した処理設備で汚染物質
と水とを分離し、汚染物質を回収するとともに、処理後
の清水を下水道などに放流する。When removing and recovering pollutants from groundwater, first, a drilling hole is drilled so as to intersect with the groundwater flow containing pollutants, and the polluted groundwater is pumped up by an underwater pump or the like. Separation of pollutants and water by a treatment facility installed on the ground side, the pollutants are collected, and fresh water after treatment is discharged to sewers.
【０００６】しかしながら、このような従来の汚染物質
の除去方法には、以下に説明する技術的な課題があっ
た。However, such a conventional method for removing contaminants has the following technical problems.
【０００７】[0007]
【発明が解決しようとする課題】すなわち、ポンプで汚
染された地下水を汲み上げる方法では、地下水の表面に
浮遊している油類の回収が難しい上に、汚染されていな
い地下水も一緒に汲み上げるため、処理水量が多くな
り、極めて非効率的な除去方法となっていた。That is, in the method of pumping up contaminated groundwater with a pump, it is difficult to collect oil floating on the surface of groundwater, and uncontaminated groundwater is also pumped up. The amount of treated water increased and it became a very inefficient removal method.
【０００８】また、汲み上げ水量の増加に伴い、処理設
備も大きくなり、建設コストを増加させる原因となって
いた。Further, as the amount of pumped water increases, the size of the treatment equipment also increases, which has been a cause of increasing construction costs.
【０００９】本発明は、このような従来の問題点に鑑み
てなされたものであって、その目的とするところは、
効率良く汚染物質の除去，回収ができる汚染物質の除去
方法および除去装置を提供することにある。The present invention has been made in view of such conventional problems, and the purpose thereof is to:
An object of the present invention is to provide a pollutant removing method and a pollutant removing method capable of efficiently removing and collecting pollutants.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、土壌中に流出した汚染物質を回収する土
壌汚染物質の除去方法において、前記汚染物質を含む地
下水流に交叉するように掘削孔を形成し、前記汚染物質
を吸着する帯状吸着体を前記掘削孔の下部側と地上との
間に循環走行させ、前記帯状吸着体に吸着された前記汚
染物質を前記地上側で離脱回収するようにした。また、
本発明は、土壌中に流出した汚染物質を回収する土壌汚
染物質の除去装置において、前記汚染物質を含む地下水
流に交叉するように掘削された掘削孔の下部側と地上と
の間に循環走行可能に設置され、前記汚染物質を吸着す
る帯状吸着体と、前記帯状吸着体の走行駆動部と、前記
帯状吸着体に吸着された前記汚染物質を離脱除去する地
上側に設けられた離脱回収部とで構成した。このように
構成された除去方法および除去装置によれば、地下水中
の汚染物質を循環走行させる帯状吸着体に吸着させて、
これを地上側で離脱除去するので、地下水上に浮遊して
いる油類を簡単に除去できるとともに、汚染されていな
い地下水の汲み上げが殆ど発生しない。前記離脱回収部
は、前記帯状吸着体を挟圧するローラまたは前記帯状吸
着体の表面に沿って摺接するブラシと、前記ローラまた
はブラシにより離脱された前記汚染物質の収容する回収
槽とで構成することができる。この構成によれば、比較
的簡単な構造により離脱回収部が得られ、低コスト化を
図ることができる。In order to achieve the above object, the present invention provides a method for removing soil pollutants for recovering pollutants that have flowed out into the soil, such that the groundwater flow containing the pollutants is crossed over. A strip-shaped adsorbent that forms a drill hole and adsorbs the pollutant is circulated between the lower side of the drill hole and the ground, and the pollutant adsorbed by the strip-shaped adsorbent is separated and collected on the ground side. I decided to do it. Also,
The present invention relates to a soil pollutant removal device for collecting pollutants that have flowed out into soil, and circulates between a lower side of a drill hole drilled to intersect a groundwater flow containing the pollutant and the ground. A strip-shaped adsorbent that is installed so as to adsorb the contaminants, a traveling drive unit for the strip-shaped adsorbents, and a detachment recovery unit that is provided on the ground side that detaches and removes the contaminants adsorbed by the strip-shaped adsorbents. It consisted of and. According to the removing method and the removing apparatus configured as described above, the pollutants in the groundwater are adsorbed by the belt-shaped adsorbent that circulates,
Since this is removed and removed on the ground side, oil floating on the groundwater can be easily removed, and pumping of uncontaminated groundwater hardly occurs. The separation / collection unit includes a roller that presses the strip-shaped adsorbent, or a brush that slides along the surface of the strip-shaped adsorbent, and a collection tank that stores the pollutant separated by the roller or the brush. You can According to this structure, the separation and recovery unit can be obtained with a relatively simple structure, and the cost can be reduced.
【００１１】[0011]
【発明の実施の形態】以下、本発明の好ましい実施の形
態について添付図面を参照して詳細に説明する。図１か
ら図３は、本発明にかかる汚染物質の除去装置の一実施
例を示している。Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of a pollutant removing apparatus according to the present invention.
【００１２】同図に示した汚染物質の除去装置は、帯状
吸着体１０と、走行駆動部１２と、離脱回収部１４とを
有している。帯状吸着体１０は、図３にその断面構造を
示すように、帯状のベルト１０ａと、ベルト１０ａの前
面に積層貼着された吸着マット１０ｂとから構成されて
いる。The pollutant removal device shown in FIG. 1 has a belt-shaped adsorbent 10, a drive unit 12, and a separation / collection unit 14. As shown in the sectional structure of FIG. 3, the belt-shaped adsorbent 10 is composed of a belt-shaped belt 10a and an adsorption mat 10b laminated and attached to the front surface of the belt 10a.
【００１３】吸着マット１０ｂは、例えば、ポリプロピ
レン系，ポリエチレン系の合成樹脂からなる油吸着材
や、表面側に静電植毛された多数の合成樹脂繊維を有
し、この合成樹脂繊維の植毛方向を一方向に揃えた立体
構造にし、汚染物質、具体的には、油類の吸着効率を高
めた吸着材などを用いることができる。The adsorption mat 10b has, for example, an oil adsorbent made of a polypropylene-based or polyethylene-based synthetic resin, and a large number of electrostatically-implanted synthetic resin fibers on the surface side. It is possible to use an adsorbent having a three-dimensional structure aligned in one direction and having an improved adsorption efficiency for pollutants, specifically, oils.
【００１４】帯状吸着体１０は、本実施例の場合には、
逆Ｌ字形に形成された枠体１６内に収容されている。枠
体１６は、油類Ｏを含む地下水流と直交するように掘削
形成された溝状掘削孔１８内に挿入される垂直部１６ａ
と、垂直部１６ａの上端側に連結形成され、下面側が地
表面に設置される水平部１６ｂとを有している。In the case of this embodiment, the belt-shaped adsorbent 10 is
It is housed in a frame 16 formed in an inverted L shape. The frame body 16 is a vertical portion 16a that is inserted into a groove-shaped drill hole 18 that is formed by drilling so as to be orthogonal to the groundwater flow containing the oil O.
And a horizontal portion 16b which is connected to the upper end of the vertical portion 16a and whose lower surface is installed on the ground surface.
【００１５】掘削孔１８内に挿入された垂直部１６ａ
は、内部に地下水が流入，流出するように、多数の貫通
孔（図示省略）が設けられている。Vertical part 16a inserted in the drill hole 18
Has a large number of through holes (not shown) so that groundwater can flow in and out.
【００１６】また、枠体１６内には、地上側に位置する
トップローラ２０と、掘削孔１８の下部側に位置するボ
トムローラ２２が回転自在に設けられているとともに、
垂直部１６ａと水平部１６ｂとの結合部分に一対の中間
ローラ２４が、回転自在に設けられている。A top roller 20 located on the ground side and a bottom roller 22 located below the excavation hole 18 are rotatably provided in the frame 16.
A pair of intermediate rollers 24 is rotatably provided at a connecting portion of the vertical portion 16a and the horizontal portion 16b.
【００１７】帯状吸着体１０は、これらのローラ２０，
２２，２４間に無端状に捲回されていて、掘削孔１８の
下端側と地上との間に循環走行するようになっている。
ここで、帯状吸着体１０は、その平面部が地下水流に対
して直交するように配置される。The belt-shaped adsorbent 10 is composed of these rollers 20,
It is wound endlessly between 22 and 24 so as to circulate between the lower end side of the excavation hole 18 and the ground.
Here, the strip-shaped adsorbent 10 is arranged so that the plane portion thereof is orthogonal to the groundwater flow.
【００１８】走行駆動部１２は、地上側に設置され、図
２に示すように、トップローラ２０に軸連結されたモー
タ１２ａと、モータ１２ａの駆動源（発電機，商用電
源，バッテリー）１２ｂとから構成されている。The traveling drive unit 12 is installed on the ground side and, as shown in FIG. 2, a motor 12a axially connected to the top roller 20 and a drive source (generator, commercial power source, battery) 12b for the motor 12a. It consists of
【００１９】モータ１２ａの回転方向は、図１に矢印で
示すように、ローラ２０，２２，２４間に捲回された帯
状吸着体１０が、地下水の流通方向の前面側において、
下方から上方に向かうように行なわれる。As shown by the arrow in FIG. 1, the rotation direction of the motor 12a is such that the belt-shaped adsorbent 10 wound between the rollers 20, 22, 24 is on the front side in the flowing direction of groundwater.
It is performed from the bottom to the top.
【００２０】離脱回収部１４は、地上側に設置され、挟
圧ローラ１４ａと、回収槽１４ｂとから構成されてい
る。 挟圧ローラ１４ａは、トップローラ２０の下方に
設置され、トップローラ２０とともに循環走行する吸着
体１０を挟圧して、吸着体１０の吸着マット１０ｂに吸
着保持されている油類Ｏを絞ることにより離脱させる。The separation / recovery section 14 is installed on the ground side and comprises a pinching roller 14a and a recovery tank 14b. The pinching roller 14a is installed below the top roller 20 and pinches the adsorbent 10 that circulates together with the top roller 20 to squeeze the oil O adsorbed and held on the adsorbent mat 10b of the adsorbent 10. Let go.
【００２１】なお、この挟圧ローラ１４ａは、枠体１６
に回転自在に支持しただけの構造でもよいが、トップロ
ーラ２０と逆方向の回転を強制的に与えてもよい。回収
槽１４ｂには、一端側の外方に延出する受承部１４ｃが
設けられている。この受承部１４ｃは、上端が開口して
いて、下端に回収槽１４ｂ側に向かう傾斜面が設けられ
ている。The pinching roller 14a is composed of a frame 16
Although the structure may be such that the top roller 20 is rotatably supported, the rotation in the opposite direction to the top roller 20 may be forcibly given. The collection tank 14b is provided with a receiving portion 14c extending outward on one end side. The receiving portion 14c has an open upper end, and an inclined surface facing the recovery tank 14b side is provided at the lower end.
【００２２】このように構成された回収槽１４ｂは、受
承部１４ｃが挟圧ローラ１４ａの下方に位置するように
して地上側に設置される。以上のように構成された汚染
物質除去装置では、走行駆動部１２のモータ１２ａを始
動して、ローラ２０，２２，２４間に無端状に捲回され
ている帯状吸着体１０を循環走行させると、吸着体１０
が油類Ｏを含む地下水に接して下方から上方に向かう際
に、地下水上に浮遊している油類Ｏを吸着マット１０ｂ
に吸着保持させる。The recovery tank 14b thus constructed is installed on the ground side so that the receiving portion 14c is located below the pressure roller 14a. In the pollutant removal device configured as described above, when the motor 12a of the traveling drive unit 12 is started and the belt-shaped adsorbent 10 wound endlessly between the rollers 20, 22, 24 is circulated and traveled. , Adsorbent 10
When the oil comes into contact with the groundwater containing the oil O and goes upward from the lower side, the oil O floating on the groundwater is adsorbed on the mat 10b.
To be held by adsorption.
【００２３】油類Ｏを吸着保持した帯状吸着体１０は、
モータ１２ａの回転に伴って地上側に移動し、挟圧ロー
ラ１４ａに到達すると、この部分で吸着保持している油
類Ｏが絞られることにより離脱する。The belt-shaped adsorbent 10 that adsorbs and holds the oil O is
When the motor 12a moves to the ground side as the motor 12a rotates and reaches the pinching roller 14a, the oil O adsorbed and held by this portion is squeezed and separated.
【００２４】離脱した油類Ｏは、回収槽１４ｂの受承部
１４ｃで受け止められた後に、回収槽１４ｂ内に収容さ
れる。油類Ｏの離脱が行われた帯状吸着体１０は、モー
タ１２ａの回転に伴って再び掘削孔１８の下部側に循環
走行し、地下水と接触することにより油類Ｏを吸着す
る。The separated oil O is received by the receiving portion 14c of the recovery tank 14b and then stored in the recovery tank 14b. The strip-shaped adsorbent 10 from which the oils O have been released circulates again to the lower side of the excavation hole 18 as the motor 12a rotates, and adsorbs the oils O by coming into contact with groundwater.
【００２５】回収槽１４ｂ内に収容された油類Ｏは、水
を含んでいるので、その後、油水分離設備で処理するこ
とにより、水と油類Ｏとに分別され、油類Ｏを回収する
とともに、清水は、下水道に放流する。Since the oils O contained in the recovery tank 14b contain water, the oils O are then separated by processing in an oil / water separation facility to recover the oils O. At the same time, fresh water is discharged into the sewer.
【００２６】さて、以上のように構成された汚染物質の
除去方法および除去装置によれば、地下水の流に対し
て、帯状吸着体１０の面が直交するように設置している
ので、油類Ｏを面に満遍なく吸着させることができ、地
下水表面に浮遊している油類Ｏを簡単かつ確実に捕捉す
ることが可能になる。According to the pollutant removing method and the pollutant removing apparatus configured as described above, the strip-shaped adsorbent 10 is installed so that its surface is orthogonal to the flow of groundwater. O can be evenly adsorbed on the surface, and the oils O floating on the surface of groundwater can be easily and surely captured.
【００２７】また、帯状吸着体１０をエンドレス状に循
環走行させて、地上側に離脱回収部１４を設けているの
で、自動的に油類Ｏの除去，回収が行われ、手間が省力
化されると同時にコストの低減も図れる。Further, since the belt-shaped adsorbent 10 is circulated and run endlessly, and the separation and recovery section 14 is provided on the ground side, the oil O is automatically removed and recovered, and labor is saved. At the same time, the cost can be reduced.
【００２８】さらに、帯状吸着体１０は、油類Ｏを若干
の水分とともに吸着するので、地下水の汲み上げ量は、
従来の方法に比べて非常に少なくなり、処理に要する手
間や時間が省力化されるとともに、処理設備の大型化も
回避することができ、建設コストの低減も図ることがで
きる。Further, since the band-shaped adsorbent 10 adsorbs the oils O together with a little water, the pumping amount of groundwater is
Compared with the conventional method, it is much less, the labor and time required for the treatment are saved, the enlargement of the treatment equipment can be avoided, and the construction cost can be reduced.
【００２９】なお、上記実施例で示した帯状吸着体１０
は、ベルト１０ａと吸着マット１０ｂとを積層したもの
を例示したが、吸着マット１０ｂが回転力の伝達に耐え
得る強度を有していれば、ベルト１０ａを使用する必要
はない。The belt-shaped adsorbent 10 shown in the above embodiment is used.
In the above description, the belt 10a and the suction mat 10b are laminated, but the belt 10a need not be used as long as the suction mat 10b has a strength capable of withstanding the transmission of the rotational force.
【００３０】また、離脱回収装置１４の挟圧ローラ１４
ａは、帯状吸着体１０の表面に摺接するブラシを設け、
ブラシの払拭により油類Ｏを離脱する構造でも良く、ま
た、これらを併設する構造であってもよい。Further, the pinching roller 14 of the separation / collection device 14
a is provided with a brush that makes sliding contact with the surface of the belt-shaped adsorbent 10,
It may have a structure in which the oils O are released by wiping the brush, or a structure in which these oils are provided side by side.
【００３１】さらに、上記実施例では、掘削孔１８ない
しは帯状吸着体１０が、地下水の流と直交するように配
置した場合を例示したが、本発明の実施は、これに限定
されることはなく、地下水流と吸着体１０とが交叉すれ
ばよい。Further, in the above embodiment, the case where the drill hole 18 or the band-shaped adsorbent 10 is arranged so as to be orthogonal to the flow of groundwater has been described, but the practice of the present invention is not limited to this. The groundwater flow and the adsorbent 10 may cross each other.
【００３２】[0032]
【発明の効果】以上実施例で詳細に説明したように、本
発明にかかる汚染物質の除去方法および除去装置によれ
ば、効率良く汚染物質の除去，回収ができる。As described in detail in the above embodiments, the method and apparatus for removing contaminants according to the present invention enables efficient removal and recovery of contaminants.
【図１】本発明にかかる汚染物質の除去装置の一実施例
を示す断面説明図である。FIG. 1 is a cross-sectional explanatory view showing an embodiment of an apparatus for removing contaminants according to the present invention.
【図２】図１の側面説明図である。2 is an explanatory side view of FIG.
【図３】図２のＣ部断面図である。FIG. 3 is a sectional view of a C portion of FIG.
１０ 帯状吸着体 １０ａ ベルト １０ｂ 吸着マット １２ 走行駆動部 １２ａ モータ １２ｂ 駆動源 １４ 離脱回収部 １４ａ 挟圧ローラ １４ｂ 回収槽 １６ 枠体 １８ 掘削孔 ２０ トップローラ ２２ ボトムローラ ２４ 中間ローラ 10 Band-shaped adsorbent 10a belt 10b adsorption mat 12 Travel drive 12a motor 12b drive source 14 Detachment collection section 14a nip roller 14b Recovery tank 16 frame 18 drilling holes 20 Top Roller 22 Bottom roller 24 Intermediate roller
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−309626（ＪＰ，Ａ) 特開 平６−99161（ＪＰ，Ａ) 特開 平４−225887（ＪＰ，Ａ) 実開 昭51−8567（ＪＰ，Ｕ) 実開 平１−65696（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B09C 1/00 - 1/10 C02F 1/40 ─────────────────────────────────────────────────── ───Continued from the front page (56) References JP-A-4-309626 (JP, A) JP-A-6-99161 (JP, A) JP-A-4-225887 (JP, A) Actual development Sho 51- 8567 (JP, U) Actual Kaihei 1-65696 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B09C 1/00-1/10 C02F 1/40
Claims (3)
壌汚染物質の除去方法において、 前記汚染物質を含む地下水流に交叉するように掘削孔を
形成し、前記汚染物質を吸着する帯状吸着体を前記掘削
孔の下部側と地上との間に循環走行させ、前記帯状吸着
体に吸着された前記汚染物質を前記地上側で離脱回収す
ることを特徴とする土壌汚染物質の除去方法。1. A method for removing soil pollutants for recovering pollutants that have flowed out into soil, comprising a band-shaped adsorbent that adsorbs pollutants by forming a drill hole so as to intersect a groundwater flow containing the pollutants. Is circulated between the lower side of the excavation hole and the ground, and the pollutant adsorbed by the belt-shaped adsorbent is separated and collected on the ground side to remove the soil pollutant.
壌汚染物質の除去装置において、 前記汚染物質を含む地下水流に交叉するように掘削され
た掘削孔の下部側と地上との間に循環走行可能に設置さ
れ、前記汚染物質を吸着する帯状吸着体と、 前記帯状吸着体の走行駆動部と、 前記帯状吸着体に吸着された前記汚染物質を離脱除去す
る地上側に設けられた離脱回収部とを有することを特徴
とする土壌汚染物質の除去装置。2. A soil pollutant removal device for collecting pollutants that have flowed out into soil, wherein the pollutants are circulated between a lower side of a drill hole drilled so as to intersect a groundwater flow containing the pollutants and the ground. A belt-shaped adsorbent that is installed so as to be able to travel and that adsorbs the contaminants, a traveling drive unit for the belt-shaped adsorbents, and a separation recovery unit that is provided on the ground side that separates and removes the contaminants adsorbed by the belt-shaped adsorbent And a soil pollutant removing device.
圧するローラまたは前記帯状吸着体の表面に沿って摺接
するブラシと、前記ローラまたはブラシにより離脱され
た前記汚染物質の収容する回収槽とを有することを特徴
とする請求項２記載の土壌汚染物質の除去装置。3. The separation / collection unit includes a roller that presses the belt-shaped adsorbent, or a brush that slides along the surface of the belt-shaped adsorbent, and a collection tank that stores the contaminant that is separated by the roller or the brush. The device for removing soil pollutants according to claim 2, further comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12518397A JP3367380B2 (en) | 1997-05-15 | 1997-05-15 | Method and apparatus for removing soil contaminants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12518397A JP3367380B2 (en) | 1997-05-15 | 1997-05-15 | Method and apparatus for removing soil contaminants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10314714A JPH10314714A (en) | 1998-12-02 |
| JP3367380B2 true JP3367380B2 (en) | 2003-01-14 |
Family
ID=14903967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12518397A Expired - Fee Related JP3367380B2 (en) | 1997-05-15 | 1997-05-15 | Method and apparatus for removing soil contaminants |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3367380B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2782877A1 (en) * | 2010-01-22 | 2011-07-28 | Applied Nanostructured Solutions, Llc | Filtration systems and methods related thereto using carbon nanotube-infused fiber materials of spoolable length as a moving filtration medium |
| JP2012061431A (en) * | 2010-09-16 | 2012-03-29 | Panasonic Corp | Apparatus and method for cleaning ground water |
| CN103170500B (en) * | 2013-03-12 | 2014-11-12 | 付融冰 | Device for electrically removing heavy metals and organic pollutants from soil or sludge |
| CN111535422B (en) * | 2020-05-07 | 2021-05-07 | 安徽大通建设工程有限公司 | Energy-saving underground sewage pipeline |
-
1997
- 1997-05-15 JP JP12518397A patent/JP3367380B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10314714A (en) | 1998-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5584605A (en) | Enhanced in situ hydrocarbon removal from soil and groundwater | |
| JP3367380B2 (en) | Method and apparatus for removing soil contaminants | |
| JP3938913B2 (en) | Oil / water separation and removal equipment | |
| JP2004261725A (en) | Oil-water separation method and oil-water separation apparatus | |
| RU2656388C2 (en) | Device for removal of oil under ice | |
| JP3142007B2 (en) | How to remove pollutants from contaminated soil | |
| JP3294076B2 (en) | How to recover oil from the stratum | |
| CN210459164U (en) | Tubular oil bailing machine | |
| US5480558A (en) | Electric enhancement of adsorbent flotation separation | |
| CN108218027A (en) | A kind of sampling of water quality cleaning equipment | |
| CN211198899U (en) | Coal chemical wastewater treatment device | |
| CN216837367U (en) | Oil recovery device for oil field oil extraction and oil refinery electric desalting oil-containing sewage | |
| CN111943417A (en) | Abandonment wire drawing oil innocent treatment equipment | |
| JP3232494B2 (en) | Method for cleaning contaminated soil and cleaning apparatus used in the method | |
| JP2005074289A (en) | Cleaning method for hardly-gas/water-permeable contaminated soil and system | |
| CN117658275B (en) | Oily sewage treatment device | |
| CN212581546U (en) | A muddy water processing apparatus for muddy water shield constructs construction | |
| CN218779448U (en) | Clean recovery processing device for offshore leaked petroleum | |
| CN108164021A (en) | A kind of oil containing sewage filter | |
| CN219449540U (en) | Drilling mud processing apparatus | |
| CN217377378U (en) | Oily wastewater treatment equipment | |
| CN213085634U (en) | Floating oil recovery device for wastewater treatment | |
| CN216320393U (en) | Chain type circulating drilling fluid filter screen | |
| RU2654219C2 (en) | Method and system for removal of oil under ice | |
| CN209113648U (en) | Transportable water treatment apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071108 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081108 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091108 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091108 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101108 Year of fee payment: 8 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101108 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111108 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121108 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131108 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |