REMEDIATION METHOD OF CONTAMINATED SUBSURFACE AND CHLORINATED ORGANIC COMPOUNDS OF GROUND WATER USING WASTE MOULDING SAND GRIND PRECIPITATES DUST OR EXTRACTED DUST

摘要

PURPOSE: Provided is a treatment method of organic chlorine compounds contaminated groundwater by using waste moulding sand, grind precipitates dust and extracted dust as raw materials of reactive media. CONSTITUTION: The waste moulding sand is used without pre-treatment because it dose not contain oil compound, and it is mixed with soil because a particle size of the waste moulding sand is similar to that of silt to sandy soil to obtain the hydraulic conductivity. The extracted dust is formed a ferrous component extracted in the short ball precipitates dust by using magnetism, and the grind precipitates dust and the extracted dust being mixed with the soil in a weight ratio of 5 to 20 or 95 to 80 is used.