发明名称 |
Air flow control circuit for sustaining vacuum conditions in a contaminant extraction well |
摘要 |
The present invention discloses a method and apparatus for extracting contaminants from the ground using a vacuum extraction process. Specifically, the invention discloses a circuit that can control the flow of atmospheric air into a vacuum extraction well. By controlling the air flow into the well, the air flow circuit serves to regulate the vacuum that is applied to sub-surface contaminants. This vacuum lifts the contaminated effluent from the ground, so it can be subjected to further processing.
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申请公布号 |
US6024868(A) |
申请公布日期 |
2000.02.15 |
申请号 |
US19970919966 |
申请日期 |
1997.08.28 |
申请人 |
XEROX CORPORATION |
发明人 |
SALOTTI, MICHAEL T.;WILLIAMS, RICHARD A.;HESS, RONALD E. |
分类号 |
B09C1/00;E21B43/12;E21B43/34;(IPC1-7):C02F1/00 |
主分类号 |
B09C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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