Analysis of water use conditions in the justification of water protection measures on the basis of the integrated approach taking into account the impact of hydro-reclamation

The aim of the research was to analyze the structure and conditions of water use within the Nerl River watershed in the Kalyazin district of the Tver region to assess the impact of pollution on the river and provide justification for water protection measures based on an integrated approach that takes into account the impact of hydro-reclamation. Data on the environmental and economic factors were gathered and compiled for part of the Nerl River basin, and an analysis of the pollution impact on the river within the Nerl River watershed was performed. The current economic situation at the site and its development prospects were assessed, including characteristics of water consumption and wastewater discharge. Water management calculations were carried out for current and future periods (for years with 75% and 95% river flow probability). Calculations of maximum permissible pollution coefficients for various sectoral water users were performed, and volumes of water consumption and wastewater discharge were calculated, taking into account the maximum permissible pollutant load. An analysis of the structure of the pollutant load from sectoral water users was carried out based on an integrated approach. A necessary set of water protection measures to improve the quality of surface water resources was developed, including local measures on melioration systems. Annual costs for the implementation of water management and water protection measures, including local measures on melioration systems, were determined, along with the prevented damages from water pollution.

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