1. "Gheorghe Asachi" Technical University of Iasi, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, Department of Environmental Engineering and Management, 73 Prof.Dr.Docent D. Mangeron Street, 700050 Iasi, Romania
2. Academy of Romanian Scientists, 54 Splaiul Independentei, RO-050094 Bucharest, Romania