The method of electrochemical deposition was used to purify water contaminated with heavy metals (copper and nickel). The study was carried out by changing the duration of the experiment and the distance between the electrodes. As a result, the dependence of both the processes of deposition of metal ions on the travel time and the inter electrode distance was determined. With increasing voltage, the deposition of ions of both metals reached its maximum value. In the article, the method of electrochemical treatment (electrochemical deposition) is used to purify water contaminated with metal ions. To achieve the deposition of copper and nickel ions, the experiments investigated the parameters affecting the process - the distance between the electrodes, the current, the working surface of the electrodes, the amount of metal ions in wastewater. First, the effect of the inter electrode distance on the efficiency of the process was studied. At the same time, experiments were carried out with changes in deposition time and stress and the impact of these parameters on cleaning efficiency was studied. It was established that depending on the working surface of the electrodes, the cleaning effect was low at a distance between the electrodes of 6 cm and 10 cm, and the output power (cleaning effect) was high between the electrodes of 8 cm. In the study The influence of stress on the process, it was established that at high voltage (9 V) the destruction of both metals reach the maximum value. In this work, the wastewater containing heavy metal ions was treated with an electrochemical method that not only reduced the value of chemical oxygen demand and reduced the number of heavy metal ions, but also produced hydrogen throughout the process. A series of experiments were carried out under the optimal conditions of the selected electrode materials, pH values, power supply capacity and working time. The results show that by controlling the key factors of the process, it is possible to implement a practical method of the wastewater treatment, which also produces a significant amount of green energy.

doi.org/10.32737/0005-2531-2025-4-118-125