The Koksu River
The Koksu River is located in the Zhetysu region, is a left tributary of the Karatal River (the basin of Lake Balkhash). The length is 205 km, the basin area is 4670 km2, the water flow is formed on the southwestern slopes of the Dzungarian Alatau. The flow of the river is mainly provided by melting glaciers. It should be noted that the Koksus lead-zinc processing plant and its two tailings dumps are located along the riverbed. Accordingly, the main source of technogenic impact on the ecological state of the river.Coke, is the wastewater of the plant with a certain content of suspended solids, sulfates, chlorides, phosphorus compounds, nitrogen in the form of nitrates, synthetic surfactants (surfactants) and metal ions (Fe, Cu, Ni, Cr, Pb, F, etc.). In addition, the densely populated area of the floodplain of the Koksu River and the presence of large industrial and agricultural facilities in them is also one of the reasons for the accumulation of pollutants in the waters of reservoirs.
