METHOD OF REMOVING OIL SUBSTANCES, POLYAROMATIC HYDROCARBONS AND POLYCHLORINATED BIPHENYLS FROM POLLUTED ROCK MEDIUM

摘要

Polluted rock medium, especially soil, earth, sludge and rocks are washed by a detergent-based aqueous solution, which detergent is based on polyalcohol tensides the hydrophilic molecule part thereof consists of a polyethylene oxide chain with cumulated hydrophilic groups -O-CH2-(O-CH2-CH2)x-, preferably of concentration ranging from 0.1 to 5 wt. parts.