Authors
Olena Galkina
Dept of Water Supply, Sewerage and Water Purification, O.M. Beketov National University of Urban Economy (O.M. Beketov NUUE), Kharkiv, Ukraine
Halyna Blahodarna
Dept of Water Supply, Sewerage and Water Purification, O.M. Beketov National University of Urban Economy (O.M. Beketov NUUE), Kharkiv, Ukraine