PURIFICATION METHOD OF CONTAMINATED GROUND
To provide a purification method of a contaminated ground that is capable of effective gasification of underground VOCs and does not flood the underground and its surface.SOLUTION: A combustion gas formed by combustion of a combustible gas is supplied to underground M through a drilling pipe 3 penet...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
21.01.2021
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a purification method of a contaminated ground that is capable of effective gasification of underground VOCs and does not flood the underground and its surface.SOLUTION: A combustion gas formed by combustion of a combustible gas is supplied to underground M through a drilling pipe 3 penetrated in the underground M and via an open hole 3 drilled in a direction crossing with its longer direction. A gas existing in the underground M is vacuumed and recovered above the ground through a plurality of drilling pipes 5 penetrated in the underground M at a position apart from the drilling pipe 3 and surrounding the drilling pipe 3 and via the open hole 5a drilled in a direction crossing with its longer direction.SELECTED DRAWING: Figure 2
【課題】地中のVOCsを効果的に気化することができると共に地中および地表が水浸しになることがない汚染地盤の浄化方法を提供すること。【解決手段】地中Mに貫入された試錐管3にその長手方向と交差する方向に穿設された貫通孔3aを介して、可燃性ガスを燃焼させた燃焼ガスを地中Mに供給する。試錐管3から離間した位置で、かつ、試錐管3を囲繞するように地中Mに貫入された複数の試錐管5にその長手方向と交差する方向に穿設された貫通孔5aを介して、地中Mに存在する気体を吸引して地上に回収する。【選択図】図2 |
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Bibliography: | Application Number: JP20190120619 |