| 摘要 |
<p>PROBLEM TO BE SOLVED: To clean a wide range of contaminated groundwaters exhaustively by utilizing a general-purpose civil engeering machine. SOLUTION: A water permeable biological wall 4 wherein a useful microbiological group containing photosynthetic bacteria, yeast fungi, lactic acid bacteria, actiomyces bacteria or filamentous fungi and a substrate are mixed is formed to the downstream region of underground 3 in contaminated soil 2 and a water blocking guide wall or membrane for guiding contaminated ground water to the water permeable biological wall is arranged. The useful microorganism group and the substrate are added to a liquid, a granular material such as sand, a sheet material or a molded object. In the preparation arranging work of them, a general-purpose civil engineering machine such as a ground treatment machine is utilized. By this constitution, a contaminated underground water flow can be collected exclusively to be certainly cleaned.</p> |
