Borisov Sergei

Chief Manager of the Kolpino Water Treatment Plant, SUE «Vodokanal of St. Petersburg» Block R, 79 Shlisselburgskoe Hwy., Pontonnyi Settlement, Saint-Petersburg, 194156, Russian Federation, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

• Providing for the efficiency of contact clarifiers under conditions of reduced design filtration rate