Impact of injection of industrial liquid waste on hydrodynamic conditions of receiving horizon
Relevance. Justification of the possibility of industrial operation of the landfill of underground disposal of wastewater generated in industrial activity for disposal of industrial effluents should facilitate the choice of the method of disposal of industrial effluents, ensure environmental safety...
محفوظ في:
| المؤلفون الرئيسيون: | , |
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| التنسيق: | Статья |
| اللغة: | Russian |
| منشور في: |
Tomsk Polytechnic University, Publishing House
2025
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://dspace.ncfu.ru/handle/123456789/30652 |
| الوسوم: |
إضافة وسم
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| الملخص: | Relevance. Justification of the possibility of industrial operation of the landfill of underground disposal of wastewater generated in industrial activity for disposal of industrial effluents should facilitate the choice of the method of disposal of industrial effluents, ensure environmental safety and prevent pollution of the earth's surface, open water bodies and fresh groundwater. For this purpose, it is necessary to assess the structural-tectonic and hydrogeological conditions of the landfill from the point of view of its use for underground disposal of wastewater, determine the hydrodynamic parameters according to the test injection of wastewater and perform predictive hydrogeological calculations. This will allow developing recommendations for further operation of the landfill of underground disposal of wastewater, using objective information on the processes occurring in the reservoir during waste injection, on the state of the geological environment and engineering structures during the injection of industrial wastewater. The issues of environmental safety, the efficiency of operation of facilities and forecasting the possible consequences of such processes require the studying of the impact of industrial liquid waste injection on the hydrodynamic conditions of the receiving horizon. This is associated with the need to justify the choice of layers for waste disposal, the injection impact on the intake capacity of injection wells, on reservoir pressure and on the filtration-capacitive properties of rocks. Aim. Comprehensive assessment of the hydrodynamic processes occurring in the reservoir during the injection of industrial wastewater, their impact on the geological environment (which leads to a change in its structure), engineering structures and the environmental safety of the operation of an underground disposal site for industrial liquid waste. Methods. Collection and synthesis of fishing materials for the study area. To study wastewater injection, field materials from absorption wells were used, and the analysis included actual data from the pilot operation of an underground wastewater disposal site and the results of hydrogeological studies. Hydrodynamic parameters were assessed using test injection results. Results and conclusions. The authors have studied a water-bearing complex for the placement (disposal) of industrial liquid waste in the geological section of the subsurface area. They carried out a comprehensive assessment of the industrial waste injection effect on the hydrodynamic conditions of the receiving horizon - deposits of the Albian sequence of Lower Cretaceous deposits. The injectivity of absorption wells, their average values for various types of injection, permissible concentrations of pollutants in wastewater, content of mechanical impurities and oil injected into the productive formation were determined. The radii of distribution of industrial wastewater at the end of the estimated period of operation of the landfill were determined, taking into account the already pumped volume and the removal of “pollution spots” under the natural pressure of formation waters, and the predicted radius of the “pollution spot” during operation of the landfill. The authors proposed a geological model of deviations from design indicators during the operation of the facility, and considered the options in which industrial wastewater can go beyond the boundaries of the mining allotment. |
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