Knowledge Base

Identification Code


Project title

Set of organizational-technical measures on prevention of surface waters pollution by agricultural chemicals removed by drainage outflow from irrigated fields of Shuruzyak massif of Hunger Steppe

Project location

Republic of Uzbekistan, Syrdarya oblast



Rubric (SIC ICWC)


Project duration


Project manager

I.B.Ruziyev, SANIIRI Republic of Uzbekistan, 700187, Tashkent, Karasu-4, 11


Research is devoted to prevention of collector-drainage and river water pollution by agricultural chemicals, removed from irrigated fields of Shuruzyak massif; collector-drainage water hydro-botanic treatment in order to reuse them for irrigation. Climate is continental; relief-hilly. Soil structure: sandy loam, light and medium loam- are  saline from  1.5-2.0m (0.7-1.5%) and polluted by agricultural chemicals. Ground water table depth is 1.0- 1.5m (spring) and up to 2.5m (fall); water salinity is 5-10g/l, sulfate-chloride. Irrigated area is 638ha (net); land use efficiency is 0.85. Water supply is made from SyrDarya river, canals efficiency is 0.94, system efficiency-0.70-0.75. Specific collectors extent is 6-8m/ha. Water disposal is made to SyrDarya river. Method of collector-drainage water hydro-botanic treatment is developed for AmuDarya and SyrDarya downstream. Proposed formulae for main parameters of bio-plateau (size, water running speed, plants density depending of species, etc.) provide necessary intensity and degree of bio-botanic treatment. Developed method gives possibility to reduce level of pollution and regulate surface water quality in the river basin and improve environment.

Key words

Water protection, surface water. Drainage water, ecology, water quality, bio-plateau, pollution


Author: I.B.Ruziyev Title: "Bio-plateau use for collector-drainage water treatment from chemicals and other pollutants", 1991 Results of field, laboratorial and experimental tests of collector-drainage water quality improvement with bio-plateau are presented. Collector-drainage water quality changes dynamics along experimental canal is shown.