Unification of requirements for the use of reagents for the treatment of sewage sludge from urban sewage treatment plants

Abstract

This paper describes the experience of unification of requirements for the use of natural and synthetic reagents at all stages of wastewater sludge treatment. The practical necessity of this study is due to the tightening of environmental requirements around the world and the increasingly active introduction of closed-loop technologies of the economy. To date, products from sewage sludge are unclaimed not only by construction and road enterprises, but also by municipalities, which could more actively use the soil for landscaping urban areas. The most promising in terms of results and costs is the use of reagents at all stages of wastewater sludge treatment. Their use makes it possible to significantly reduce the costs of such technological processes as dehydration and stabilization. Reagents are an indispensable component in modern approaches to composting and disinfection.