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Article

Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia

1
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, 23 Severnoy Dviny Emb., 163061 Arkhangelsk, Russia
2
Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, 19 Kosygin st, 119991 Moscow, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Christos S. Akratos
Water 2022, 14(2), 165; https://doi.org/10.3390/w14020165
Received: 22 December 2021 / Revised: 1 January 2022 / Accepted: 6 January 2022 / Published: 8 January 2022
(This article belongs to the Section Water Quality and Contamination)
The technogenic impact of the development of the Lomonosov diamond deposit is associated with the discharge of quarry and drainage water into the river, which has a special conservation status. Earlier studies on the composition of bottom sediments showed that there are signs of increased accumulation of heavy metals and radionuclides at wastewater discharge sites. The purpose of this work was to predict changes in the composition of surface water and bottom sediment in the river during the further development of mining operations with brackish and salty water captured by drainage systems, the presence of which was established in the zone of their future influence. For this, a simulation of changes in the composition of the water in the river was carried out using the GEOCHEQ software package by minimizing the free energy of the system using a convex simplex algorithm. It was found that the maximum salinity of surface water can reach 1.51 g/L. In this case, the MPC of Cl, Na+, SO42−, Mg2+, Sr, V, and U can be exceeded for fishery watercourses. The genetic basis of the accumulation of these components in solutions for mixing was considered. According to the calculations, when about 5000 m3/h of drainage water is discharge d into the river, the mass of precipitated chemical elements will be 56–191 t/h, including up to 2.1 t/h of iron; therefore, accumulation in the discharge zone must be controlled. View Full-Text
Keywords: quarry waters; wastewater; river waters; bottom sediments; modeling quarry waters; wastewater; river waters; bottom sediments; modeling
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MDPI and ACS Style

Malov, A.I.; Sidkina, E.S.; Mironenko, M.V.; Tyshov, A.S.; Cherkasova, E.V. Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia. Water 2022, 14, 165. https://doi.org/10.3390/w14020165

AMA Style

Malov AI, Sidkina ES, Mironenko MV, Tyshov AS, Cherkasova EV. Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia. Water. 2022; 14(2):165. https://doi.org/10.3390/w14020165

Chicago/Turabian Style

Malov, Alexander I., Evgeniya S. Sidkina, Mikhail V. Mironenko, Alexey S. Tyshov, and Elena V. Cherkasova. 2022. "Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia" Water 14, no. 2: 165. https://doi.org/10.3390/w14020165

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