Sustainable Aquaculture Using Treated and Untreated Mine Water from Coal Mines

Author(s):  
Kenneth J. Semmens ◽  
James A. Jacobs
2020 ◽  
Vol 79 (4) ◽  
Author(s):  
Tuan Quang Tran ◽  
Andre Banning ◽  
Frank Wisotzky ◽  
Stefan Wohnlich

2014 ◽  
Vol 501-504 ◽  
pp. 336-340 ◽  
Author(s):  
Shen Ju Li ◽  
Qiang Wu ◽  
Fang Peng Cui ◽  
Yi Fan Zeng ◽  
Guo Rui Wang

In China, water disaster often occurred in coal mines in recent years. According to official statistics on coal mine water accidents occurred in recent twelve years in China, major characteristics of the water disaster have been illustrated. The result shows that the number of both water accidents and corresponding fatalities decreased from 2001 to 2012. And apparently, the accidents occurred in township-owned coal mines and triggered by gob area water accounted for a higher proportion, respectively.


1890 ◽  
Vol 46 (280-285) ◽  
pp. 368-369 ◽  

Specimens of remarkable deposits which have formed in the water-boxes of coal-mines in the neighbourhood of Newcastle-upon-Tyne have been for many years in the possession of the Museum of the Durham College of Science. A rough analysis has been published by J. T. Dunn (‘Transactions of the Newcastle Chemical Society,’ vol. 3, p. 261) of an apparently similar deposit, which was formed daring the autumn of 1876 in the Jane Pit at Walker. During this short period the sectional area of the box had been reduced by the deposit from seven and a half square inches to less than half a square inch, and had been in places almost completely closed.


Author(s):  
А.И. Гавришин

Многие десятилетия угледобывающая промышленность оказывает интенсивное негативное влияние на все компоненты окружающей среды в Восточном Донбассе. Одним из наиболее мощных факторов преобразования гидрогеохимических условий являются шахтные воды. Особенно интенсивные изменения концентраций макрокомпонентов в шахтных водах произошли в последние 25 лет поле массовой ликвидации угольных шахт в регионе. Для всех лимитируемых макрокомпонентов обнаружено превышение ПДК вод хозяйственнопитьевого и культурнобытового водопользования по средним концентрациям, а для некоторых компонентов даже по минимальным значениям. По средним концентрациям 20ти микроэлементов превышение ПДК обнаружено в 53х компонентов, по максимальным концентрациям в 73. Средние концентрации по ряду элементов в десятки раз превышают соответствующие ПДК, а по максимальным концентрациям превышение составляет сотни раз. В грунтовых и поверхностных водах произошло увеличение средних, медианных и максимальных концентраций макрокомпонентов в 1,220 раза. По средним концентрациям превышение ПДК отмечено для 67, а по максимальным для 83 100 лимитируемых компонентов. Для средних концентраций микроэлементов в грунтовых водах превышение отмечено в 40, а для максимальных значений в 67 случаев. Средние концентрации микроэлементов превышают ПДК в несколько раз, максимальные концентрации в десятки раз. После ликвидации угольных шахт, произошло резкое усилении процессов окисления сульфидов и серы, содержащихся в углях и вмещающих горных породах, и растворение сульфатов. Сравнение гидрогеохимических условий в Восточном Донбассе до и после массовой ликвидации угольных шахт (за 25 лет) выявило значительное ухудшение качества шахтных вод и усиление процессов загрязнения грунтовых и поверхностных вод в регионе. Все изложенное свидетельствует о необходимости проведения реабилитационных мер и о совершенствовании очистных технологий For decades, the coal industry has had an intense negative impact on all environmental components in Eastern Donbass. Mine water is one of the most powerful factors in the transformation of hydrogeochemical conditions. Particularly intense changes in the concentrations of macro components in mine waters have occurred in the last 25 years the field of mass liquidation of coal mines in the region. For all the limited macrocomponents, the MAC exceeded the water supply of householddrinking, cultural, and domestic water use in average concentrations, and for some components even on minimum values. For an average concentration of 20 micronutrients, excess of MAC was found in 53 of components, at a maximum concentration of 73.The average concentrations of a number of elements are ten times higher than the corresponding MAC, and at maximum concentrations the excess is hundreds of times. In groundwater and surface waters there was an increase in average, median and maximum concentrations of macro components by 1.22.0 times. On average concentrations, the excess of MAC was observed for 67, and for the maximum for 83100 of the limited components. For average concentrations of trace elements in groundwater, excess was observed in 40, and for maximum values in 67 of cases. Average concentrations of trace elements exceed MAC several times, maximum concentrations tenfold. After the liquidation of coal mines, there was a sharp increase in the oxidation processes of sulphides and sulfur contained in coals and consumable rocks, and the dissolution of sulfates. Comparison of hydrogeochemical conditions in Eastern Donbass before and after the mass liquidation of coalmines (for 25 years) revealed a significant deterioration in the quality of mine water and increased groundwater pollution processes in the region. All of this demonstrates the need for rehabilitation measures and improvements in treatment technologies


2019 ◽  
Vol 80 ◽  
pp. 01005 ◽  
Author(s):  
Javier Menéndez ◽  
Jorge Loredo

The idea to reducing the dependency of nuclear and fossil energy sources has risen in Spain, then, the use of closured coal mines for energy generation is thus in the political interest, and by 2020 it is intended that the country produces 20% of its energy from renewable sources, therefore replacing the energy based on fossil fuels. New studies on the framework of a circular economy have led to found new possibilities for closured coal mines in historical mine districts and mine water can be considered as a potential resource, converting mining exploitations into storage and production facilities of renewable energy and generating new economic activities in the mining regions. Abandoned and flooded mines constitute artificial karst type aquifers, and these created underground reservoirs can be economically managed to supply geothermal energy to villages around the shafts. This potential application of mine water, profitable in both economic and environmental terms, could contribute to improve economic and social conditions of traditional mining areas in gradual decline. On the other hand, the restored lands can be used for the production of biofuels through repopulation with fast-growing energy crops and high planting densities. This paper analyses the uses of mine water for energy generation both as geothermal resource and through pumped storage between an underground and a surface reservoir, furthermore the supply of productive restoration for biomass production in closured coal open pits is considered, in relation to their potential application to the closured coal mines from the Asturias Central Coal basin in Northern Spain.


2020 ◽  
Vol 146 ◽  
pp. 1166-1176 ◽  
Author(s):  
Javier Menéndez ◽  
Almudena Ordónez ◽  
Jesús M. Fernández-Oro ◽  
Jorge Loredo ◽  
María B. Díaz-Aguado

2011 ◽  
Vol 438 (2) ◽  
pp. 733-735
Author(s):  
A. V. Mokhov
Keyword(s):  

2021 ◽  
Vol 15 (3) ◽  
pp. 22-30
Author(s):  
Dmytro Rudakov ◽  
Sebastian Westermann

Purpose.In this paper we present and validate an analytical model of water inflow and rising level in a flooded mine and examine the model robustness and sensitivity to variations of input data considering the examples of three closed hard-coal mines in Germany. Methods. We used the analytical solution to a boundary value problem of radial ground water flow to the shaft, treated as a big well, and water balance relations for the series of successive stationary positions of a depression cone to simulate a mine water rebound in the mine taking into account vertical distribution of hydraulic conductivity, residual volume of underground workings, and natural pores. Findings. The modeling demonstrated very good agreement with the measured data for all the studied mines. The maximum relative deviation for the mine water level during the measurement period did not exceed 2.1%; the deviation for the inflow rate to a mine before its flooding did not exceed 0.8%. Sensitivity analysis revealed the higher significance of the residual working volume and hydraulic conductivity for mine water rebound in the case of thick overburden and the growing significance of the infiltration rate and the flooded area size in the case of lower overburden thickness. Originality.The developed analytical model allows realistic prediction of transient mine water rebound and inflow into a mine with layered heterogeneity of rocks, irregular form of the drained area, and with the inflow/outflow to a neighboring mine and the volume of voids as a distributed parameter without gridding the flow domain performed in numerical models. Practical implications.The study demonstrated the advantages of analytical modeling as a tool for preliminary evaluation and prediction of flooding indicators and parameters of mined out disturbed rocks. In case of uncertain input data, modeling can be considered as an attractive alternative to usually applied numerical methods of modeling ground and mine water flow.


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