scholarly journals Evaluation of chemical composition quality of surface water in the eastern Donbass

Author(s):  
A. I. Gavrishin

The regularities in forming chemical composition of mine and surface waters in the Eastern Donbass were studied using the techniques of statistical estimation of component concentration distributions, the methods of assessing environment pollution, and the digital computer technology on multidimensional classification observations AGAT-2. The article shows that the mine water in the Eastern Donbass is a powerful source of polluting environment, causing serious ecological damage to the territory. Coal mine water contain a lot of dissolved substances up to 413 thousand t/year, among which macro components and various metals forming a significant part. The mean concentrations of most components in mine water hundreds times exceed the maximum allowable concentrations (MACs), and they exceed the maximum concentrations in thousands times. The surface water quality was analyzed in the region proceeding from the results of testing small rivers and streams. Using classification technologies, five genetic variants of surface waters were identified by the macrocomponents. The first option characterizes the initial phase of surface water formation outside the pollution impact. Other options reflect the growing degree of water pollution in the region. The distribution of genetic water variants was shown throughout the region. The calculation of surface water pollution by 20 components revealed the cumulative indicator of pollution to be equal to 108 corresponding to the emergency crisis category. About 65% components exceed MAC. Surface water classes uniform in the content of 15 metals were distinguished using the digital computer technology AGAT-2. A cumulative indicator of pollution varies from 27 to 65, which corresponds to a tense and emergency crisis situations. Therefore, mine waters pollute significantly the surface waters in the Eastern Donbass. Conclusion is made about the need for rehabilitation measures in order to improve the quality of surface waters in the region.

Author(s):  
Grigory Yu. Sklyarenko ◽  
Vladimir E. Zakrutkin ◽  
Eugeny V. Gibkov

Eastern Donbass, where coal has been mined for over a century, has become a natural-technogenic system (NTS), affecting all components of the natural environment. Among the elements most affected by it are groundwater and surface water exposed to mine waters. The state of the NTS is due to the interaction of technogenic and natural factors such as the geological structure of the territory. For many years, the environmental assessment has taken into account the organized discharge of mine water. At the same time, this region is characterized by widespread development of disjunctive tectonic faults. The hypothesis seems logical that not only the treatment facilities of closed coal mining enterprises, but the faults and associated fracture zones are channels for the drainage of mine water and deep highly mineralized solutions to the surface, where they are unloaded into the river network. Studies carried out in one of the promising areas, where drainage of groundwater takes place through fractured rocks developed along the fault displacement fault, showed their significant impact on the composition of the surface waters of the river Small Nesvetay. Taking into account the very complex tectonics of the Eastern Donbass, it would be logical to assume a similar influence of other numerous disjunctive structures. Their study will contribute to a comprehensive assessment of the region's environment and the adoption of management decisions, and the development of effective measures for water purification and stabilization of the ecological and social situation in the region.


2021 ◽  
Vol 280 ◽  
pp. 10005
Author(s):  
Igor Gopchak ◽  
Tеtiana Basiuk ◽  
Artem Yatsyk ◽  
Oksana Yaromenko

The quality of surface waters of small rivers of the Ukrainian regions of right-bank Polissia, belonging to the basin of the river Pripyat, was estimated. The study was conducted via systematic observations based on the ecological classification of surface water quality of land and estuaries of Ukraine, which includes a set of hydrophysical, hydrochemical, hydrobiological and other indicators, which were grouped into three blocks of indicators: salt composition of water; tropho-saprobiological (ecologicalsanitary) block; specific substances of toxic action. The integrated (ecological) index was determined, by which the class and category of surface water quality were established. The results of observations on the quality of surface waters of the rivers of the Ukrainian regions of right-bank Polissia indicate their satisfactory condition. Surface waters, on average, correspond to the II class of water quality, and the worst - to the III class. Water protection measures have been proposed to improve the ecological condition of small river basins in specified region.


Author(s):  
А.И. Гавришин ◽  
В.Е. Борисова ◽  
Е.С. Торопова

Детальное изучение процесса изменения состава шахтных вод выполнено с помощью оригинальной технологии классификации многомерных наблюдений АГАТ-2. Обнаружено четыре главных направления изменения состава вод. После завершения ликвидации угольных шахт резко усилились процессы окисления и образования сульфатных вод первого направления, снизилось образование вод второго направления, полностью отсутствуют воды третьего направления, ослаблено четвертое направление. Происходит формирование мощных потоков загрязнения и возникает необходимость мероприятий по реабилитации окружающей среды в Восточном Донбассе. Выполнен пространственный анализ распределения состава шахтных вод на территории региона. A detailed study of the process of transformation of the whole mine water using computer technology classification of multivariate observations AGAT-2. Found the four main directions of changes in the composition of the waters. After completing the Elimination of coal mines have dramatically increased oxidation processes and formation of sulphate waters first destinations, decreased water education second, completely absent of water the third, diminished fourth direction. Is the formation of powerful streams of pollution and there is a need for environmental rehabilitation activities in the region of environment. Completed spatial analysis of distribution of composition of mine waters in the Eastern Donbass.


Author(s):  
E. Yu. Kulikova ◽  
Ju. A. Sergeeva

One of the problems of functioning of coal industry enterprises is the formation of mine waters, which are discharged into water bodies and cause their dangerous pollution. The total volume of water pumped by the enterprise includes up to 15 % for the recycling cycle, the remaining 85% is discharged to surface water bodies. As a result, the ecological balance of coal regions is disturbed, their sanitary and hygienic state on the environment worsens, and the quality of coal is reduced due to the intake of polluted water for technological operations. The volume of mine water contamination increases during mining operations at deeper horizons and in difficult mining and hydrogeological conditions. In turn, this leads to pollution and depletion of underground aquifers and the formation of environmental risk factors. In Kuzbass, all these factors contribute to the development of water crisis, since the state of surface reservoirs has already reached a critical limit. Especially dangerous is the process of liquidation of mines. Closing mines and sections disrupt natural water flows, resulting in all water from the aquifers going to deeper horizons. More pollutants enter the water, which poison the underground hydrosphere of the regions. The paper analyzes the pollutants entering the underground and surface hydro grid at coal-fired plants and offers a Conceptual model for minimizing the risk of water pollution.


2020 ◽  
Vol 6 (2) ◽  
pp. 79-88
Author(s):  
Z.O. Normakhmedova ◽  
◽  
A.V. Mitusov

This article presents the study results of the change dynamics in the chemical composition of water in Lake Iskanderkul and the rivers flowing into it, as well as the comparison of water quality in the water bodies of the Iskanderkul Basin and several mid-stream tributaries of the Zarafshan River. It was established that the chemical composition of water in Lake Iskanderkul and its tributaries meets the requirements of the corresponding state standard (GOST 2874-82 “Drinking Water”). However, in terms of dissolved oxygen, copper, zinc, lead and iron the water in Lake Iskanderkul does not satisfy fish farming requirements. The main water pollution sources in the area include such natural phenomena as floods, avalanches, mudslides, and rock dissolution.


2018 ◽  
Vol 44 ◽  
pp. 00064
Author(s):  
Marcin Karpiński ◽  
Kajetan d’Obyrn ◽  
Ewa Kmiecik ◽  
Barbara Tomaszewska

Electricity production in Poland is carried out mainly in conventional power plants, and the necessary resources include fuel and water. Significant water intake and production of sewage necessitate the application of technological solutions limiting the negative impact on the water environment. For this reason, Tauron Group's power plants for replenishing losses in cooling circuits use beside surface water, water from inactive mining plants. Due to the increased content of chlorides and sulphates in relation to surface water, mine water show significant corrosion properties. However, they are characterized by a relatively stable chemical composition mainly dependent on the physicochemical properties of the geological environment. The surface water quality is affected by many factors, such as seasons, thaws, rainfall, or the presence of pollutants from sewage disposal. The relative stability of the chemical composition of mine water allows for easier determination of chemical dosage during treatment process. The paper presents a stability assessment of the chemical composition of waters used to supplement circuits based on data from 2007–2017.


2021 ◽  
Vol 1 (1) ◽  
pp. 21-24
Author(s):  
Afshan Urooj ◽  
Rida Ilyas ◽  
Nimrud Humayun Humayun

Water pollution has been a hot debate for government and scientists. in addition, protecting river water quality is exceedingly immediate because of serious water pollution and global scarcity of water reservoir. This study was conducted to assess the effect of solid waste dumping on surface water quality. In return to achieve this, water samples were obtained in different months from site. Below site was selected due to the dumps on surface water. Water parameters pH, turbidity conductivity and temperature were determined using pH/conductivity meter, Most the values are within the permissible limits, but all the samples do not fulfill WHO requirements, site may have effects on human health due to waterborne diseases and on soil fertility.


2021 ◽  
Vol 5 (2) ◽  
pp. 43-50
Author(s):  
M. A. Nalbandyan ◽  

Surface water pollution issues are relevant and important. The impacts of polluted waters on the catchment area have both short and long term implications. The negative impact affects both the quality of soils grown in the catchment of plants and agricultural crops, and the health of the population living in the area. From this point of view, the assessment of the environmental and ecological-economic damage caused is relevant. To manage the damage to the environment, it is necessary to conduct balanced economic development and measures to control the quality of surface waters. The methodology developed and proposed in this article for a comprehensive assessment of environmental, economic and environmental damage is aimed at creating and monitoring conditions for economic progress, ensuring and protecting the rights of society and the quality of life.


2015 ◽  
Vol 6 (1) ◽  
pp. 131-140
Author(s):  
MF Karim ◽  
MW Zaman ◽  
R Sultana ◽  
MU Nizam ◽  
MR Kamruzzaman

A study was carried out with 25 pond water samples of Bhola Sadar Upazila to assess the quality of surface water for irrigation, aquaculture, drinking and livestock consumption. Chemical analyses of different parameters were done to assess the quality of water. All of the water samples showed slightly acidic in nature. Sixteen surface water samples were not suitable for drinking and aquaculture in respect of pH (pH <6.5). Electrical conductivity (EC) categorized the waters as “low salinity” (C1) to “medium salinity” (C2) class for irrigation. With respect to total dissolved solids surface waters were within “highest desirable limit” for drinking and irrigation and suitable for livestock consumption and aquaculture. Calcium and Magnesium content rated the samples as “maximum permissible” and “highest desirable” limit for drinking. All the samples were suitable for drinking in case of Na and K, 21 samples were not suitable for aquaculture due to higher (>5.0 mg L-1) K content. Six samples were unsuitable for livestock due to higher (Cl >30mgL- 1) Cl values. SSP rated 9 samples as “good”, 1 as “excellent”, 6 as “doubtful” and 9 as “permissible” for irrigation. With respect to RSC 21 samples were “suitable”, 3 were “marginal” and 1 was “unsuitable” for irrigation. Hardness classified 14 samples within “moderately hard”, 10 within “soft” and only one as “hard” limit for irrigation and 1 sample (No. 16) was unsuitable for livestock consumption. P, B, Cu and As concentration categorized all the samples suitable for irrigation, aquaculture, drinking and livestock consumption.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22053 J. Environ. Sci. & Natural Resources, 6(1): 131-140 2013


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