PetrSU participates in the Karelia Cross-Border Cooperation Program (project KA4020) “Improving the ecological situation in the region by valorizing municipal and industrial sludge (waste) of sewage”. Since the end of June, Karelvodokanal LLC (Sortavala), together with Petrozavodsk State University, began a pilot experiment on composting sewage sludge. At the moment, two pilot sites have been […]