| 摘要 |
PCT No. PCT/FR96/00722 Sec. 371 Date Nov. 10, 1997 Sec. 102(e) Date Nov. 10, 1997 PCT Filed May 13, 1996 PCT Pub. No. WO96/36434 PCT Pub. Date Nov. 21, 1996Ashes are used when they have the particle size of fly-ash, i.e., when they have just been produced by a combustion process. They can be used, inter alia, for dehydrating and/or stabilizing sewerage plant sludge or sludge from surface treatment plants, for detoxifying liquid, semi-liquid or solid media contaminated by heavy metals and the like, and for removing pollutants from hydrocarbon-containing liquid or semi-liquid media. |
