TY JOUR TI WATER TREATMENT ENGINEERING NETWORKS IN THE PAST, PRESENT AND FUTURE KW housing and communal services KW history of water supply and sanitation KW sewerage KW treatment facilities KW reinforced concrete drainage systems KW dilapidated and failures of communal systems KW moral and physical deterioration KW repair compounds for internal reinforced concrete surfaces KW overhaul KW sanitization KW renovation JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kosukhin, M.. AU Kosukhin, A.. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov