Translation. Region: Russian Federal
Source: Peter the Great St. Petersburg Polytechnic University –
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Scientists from the Civil Engineering Institute are conducting a study aimed at studying the characteristics of water from the Neva River that are important for online monitoring of its quality. Work on the project is being conducted under the supervision of Maria Andrianova, Associate Professor of the Higher School of Hydraulic Engineering and Power Engineering of the Civil Engineering Institute. The research group also includes Ekaterina Chabina, Senior Lecturer at the ISI HSGEES, and Benjami Ishtvakh, Postgraduate Student.
The aim of the study is to analyze the variability of the optical density of water in drinking water sources, which is key to improving automatic monitoring systems (CAM) of pollutants. Modern online monitoring technologies can significantly speed up the process of water quality analysis, although their accuracy may be lower than laboratory methods. However, prompt data acquisition is critical for the effective management of water purification processes. In 2021, a GOST was adopted regulating the use of CAM, which emphasizes the need to take into account seasonal and weather phenomena when monitoring water bodies.
According to project manager Maria Andrianova, preliminary data demonstrate significant seasonal variability of optical coefficients in the ultraviolet range, exceeding the possible measurement error. This confirms the relevance of the study aimed at assessing the scale of this variability and determining the factors influencing its dynamics. Given the changes in climatic conditions and the transformation of the city's sewage system over the past decades, the project is of particular importance for modern ecology and water treatment.
The Higher School of Hydraulic and Power Engineering of the Civil Engineering Institute has a modern instrumental base for analyzing the main characteristics of water, including determining total organic carbon, individual ions, optical density spectra and fluorescence in the ultraviolet and visible ranges. Scientists plan to conduct a detailed analysis of water samples taken from the Neva and its tributaries under various weather conditions: in summer and winter, during the spring flood and autumn showers. The main objective of the study is to create a database of spectral and chemical indicators of water for the subsequent identification of patterns.
To ensure the successful implementation of the project, the participation of master's students is required. In this regard, we invite students of the Civil Engineering Institute to take an active part in the work on the project, as well as to complete final qualifying works on the research topic, – shared senior lecturer of the Higher School of Civil Engineering and Economics Ekaterina Chabina.
We hope that the research results will find application at the enterprises of the Vodokanal of St. Petersburg, noted the project manager Maria Andrianova.
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