Abstract
Power units of thermal power plants (TPP), state-owned district power plants (SDPP),combined heat and power plants (CHPP) are mega-complexes, the maintenance of which requires hugeinvestments and significant natural resources (fossil fuels and water). The operation of the units leads to apermanent negative impact on the environment, in spite of strict standards for emissions and discharges. Thisarticle analyzes the impact of power plants on water bodies. The following measurements are given for therunoff of the Novocherkassk SDPP to the Don River (Russia, Rostov Region): temperature, odor, power ofhydrogen (pH-value), transparency, suspended materials, dissolved oxygen, biological oxygen demand in 5days (BOD5), TBOD, chemical oxygen demand (COD), mineralization, chlorides, sulfates, hydrogencarbonates, alkalinity, calcium, magnesium, hardness, sodium + potassium, ammonium ions, nitrites, nitrates,phosphorus phosphates, total ferrum, copper, aluminum, synthetic surface active substances, petroleumproducts, toxicity. It is established that the indicators are within the permissible values established byregulatory documents (Russia).
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