The article presents a comparative analysis of modern methods of sewage sludge utilization in Russia and abroad. A comprehensive analysis of the possible use of sludge in the conditions of typical treatment facilities of the Rostov region, proposed engineering and environmental solutions for the secondary use of sludge sewage as a fertilizer on the example of the company "Istok" Kamensk-Shakhtinsky Rostov region.
Keywords: utilization of sewage sludge (OSV), environmental safety, deworming, economic efficiency