Masu, SmarandaSmarandaMasu2017-05-032017-05-032012978-963-306-165-7http://hdl.handle.net/123456789/989The 18th Symposium on Analytical and Environmental Problems with special emphasis on heavy metal ions as contaminants, 24 September 2012 , Szeged, Hungary, Conference Proceedings, pp. 56-59Applying 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.Complex treatmentSewage sludge fertilizationIndigenous volcanic tuffTotal Petroleum HydrocarbonsConference paper