The prospects of using sewage sludge from Lviv wastewater treatment plants for biological reclamation have been assessed. Based on the results of the monitoring of determining the qualitative and quantitative composition of sewage sludge accumulated in silt fields, the dependences of the distribution of sanitary-microbiological and ecological-chemical characteristics of the accumulated sludge are constructed. Agroecological laboratory researches of an estimation of possibility of use of sewage sludge in a mix with natural sorbents as a substrate for cultivation of plants are carried out.