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1. 发明专利

JP2002035734A REMEDIAL METHOD FOR SOIL ATMOSPHERE UTILIZING TANK AND SOIL WASHING EQUIPMENT 失效
公开(公告)号：JP2002035734A
公开(公告)日：2002-02-05
申请号：JP2000226407
申请日：2000-07-27
申请人： KAJIMA CORP
发明人： SUZUKI SHIGERU , TORITANI YUKIO , HATTORI SHINTARO
IPC分类号： B09B3/00 , B01J7/00 , B09C1/00 , B09C1/02 , B09C1/04 , B09C1/08 , C02F1/24
摘要： PROBLEM TO BE SOLVED: To provide a remedial method for a soil atmosphere utilizing a tank which has been established, said method cleaning a large amount of soil quickly and a soil washing equipment. SOLUTION: The inner part of a tank 1 that has been established is divided into a soil washing tank 10, a water/pollutant separation tank 20, a cleaning agent injection water tank 30 and a muddy water treatment tank 40. The pollutant 4 in a contaminated soil 2 is transferred to a washing water 5 by throwing/stirring a fixed amount of contaminated soil 2 around the tank 1 and the washing water 5 of the injection water tank 30 to a washing tank 10. A pollutant-containing water 8 is caused to flow into the separation tank 20 if the soil is precipitated, and a pollutant-containing water 8 is caused to flow into the separation tank 20 after the muddy water 7 comprising the contaminated soil 2 and the washing water 5 is separated into mud 9 and the pollutant-containing water 8 by transferring the muddy water 7 to a treatment tank 40, if the soil is not precipitated. The pollutant-containing water 8 is separated into the pollutant 4 and the water 6 at the separation tank 20, and then the mud 9, the pollutant 4 and the water 6 are discharged outside the tank 1 to returned a precipitation soil 3 of the washing tank 10 to the tank surrounding. A cycle from charging to returning for the required surrounding contaminated soil 2 is repeated.

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