| 摘要 |
The invention relates to an additive for decontamination of soil and storage pits contaminated with petroleum products and/or residues and to a depolluting process using the said additive. According to the invention, the additive comprises cement, calcium oxide, anhydrous calcium sulphate, power plant ash, filler, in a mass ratio of 3:3:2:1:1. The claimed process consists in homogenizing the contaminated soil with the additive, as claimed, up to the neutralization of acid compounds, followed by sand and gravel addition and by heating in a rotary furnace at the temperature of 275...450°C and cooling with water, after which the heat-treated product is compacted and poured into forms and stabilized in a concrete block which is finally stored. |
