Phytoremediation of hydrocarbon-contaminated soil, using plants

Applying the complex treatment of sewage sludge fertilization and amendment of indigenous volcanic tuff of Marsid, caused a grass coverage degree of 85%. Plants grow similarly to those on normal agricultural soil. The reduction efficiency of Total Petroleum Hydrocarbons (TPH), from the soil fertilized with anaerobically stabilized sewage sludge of 25 t/ha d.m. and amended with indigenous volcanic tuff 2.5 t/ha is of 33.7%, during a four month period, with over 10% more than the efficiency of reduction of the Total Petroleum Hydrocarbons content from the soil of the experimental variant fertilized with sewage sludge in the absence of amendments.