Analysis of the step-by-step water purification of a combined water treatment plant at a heat and power complex

For the functioning of heat and power complexes, demineralized water with certain standard indicators is needed, which are achieved due to the water treatment plants operation. The choice of water treatment method directly depends on the characteristics of the water source. It is possible to analyze the efficiency of water treatment according to the measured physical and chemical indicators at each stage of water treatment. The paper considers a combined water treatment plant, which includes membrane technologies and ion exchange. The article provides the analysis of the coolant indicators at each stage of the Kazan combined heat and power plant (CHPP-2) and Sterlitamak CHPP combined water treatment plants. Physical and chemical indicators were measured using titrimetric and spectrophotometric methods. According to the data obtained, the physicochemical indicators of water samples from certain water treatment stages exceeded the initial values by about three times. For the two considered power plants, recommendations are given to improve the water treatment units efficiency.