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    • 5. 发明授权
    • Method and device for removing a non-aqueous phase liquid from a groundwater system
    • 从地下水系统去除非水相液体的方法和装置
    • US06367563B1
    • 2002-04-09
    • US09585539
    • 2000-06-02
    • Brian B. LooneyJoseph RossabiBrian D. Riha
    • Brian B. LooneyJoseph RossabiBrian D. Riha
    • E21B4908
    • B09C1/002B09C1/00
    • A device for removing a non-aqueous phase liquid from a groundwater system includes a generally cylindrical push-rod defining an internal recess therein. The push-rod includes first and second end portions and an external liquid collection surface. A liquid collection member is detachably connected to the push-rod at one of the first and second end portions thereof. The method of the present invention for removing a non-aqueous phase liquid from a contaminated groundwater system includes providing a lance including an external hydrophobic liquid collection surface, an internal recess, and a collection chamber at the bottom end thereof. The lance is extended into the groundwater system such that the top end thereof remains above the ground surface. The liquid is then allowed to collect on the liquid collection surface, and flow downwardly by gravity into the collection chamber to be pumped upwardly through the internal recess in the lance.
    • 用于从地下水系统去除非水相液体的装置包括在其中限定内部凹部的大致圆柱形的推杆。 推杆包括第一和第二端部和外部液体收集表面。 液体收集构件在其第一和第二端部中的一个处可拆卸地连接到推杆。 从污染的地下水系统中除去非水相液体的本发明的方法包括在其底端提供包括外部疏水性液体收集表面,内部凹陷和收集室的喷枪。 喷枪延伸到地下水系统中,使得其顶端保持在地面上方。 然后允许液体收集在液体收集表面上,并通过重力向下流入收集室,以向上泵送通过喷枪内部凹槽。