Semenov Aleksandr
Senior Expert on the Operation of the Wastewater Disposal Facilities, Chief process Engineer Service, Wastewater Disposal of St. Petersburg Branch, SUE «Vodokanal of St. Petersburg» 42 Kavalergardskaia St., Saint-Petersburg, 191015, Russian Federation, tel.: +7 (812) 372-59-17, e-mail: Semenov_AV@vodokanal.spb.ru
