The hydrogeological conditions of Huainan Coalfield are complex. The Taiyuan formation limestone water (Taihui water) in this area is a direct threat to the water source of the 1# coal mining floor. In order to prevent and control water disasters, Gubei Coal Mine adopted ground high-pressure grouting with fly ash cement to block the …
Water that attacks metal is said to be corrosive. It frequently results in "red water" caused by solution of iron; however, not all red water is the result of corrosion. Water from some formations contains considerable iron in solution, which, on being exposed to the air, precipitates readily and gives a red-water effect.
The environmental damage associated with mining is well-known, in terms of land clearing, ecosystem degradation, or water pollution. However, its effect on climate is less frequently considered.
In Oman, groundwater is the main water source representing 92% of the total renewable water resources (1186 MCM/year). This paper emphasis on analyzing the hydrological parameters measured on the
underground mining engineering 40 (2022) 37-44 udk 62 university of belgrade - faculty of mining and geology issn 03542904 review paper reducing environmental impact caused by mining activities in ...
Groundwater chemical composition can be changed due to long-term coal mining activities, but it was unclear how it was induced in Taiyuan Formation limestone (TFL) regarding the lack of relevant ...
With all the water on earth only about 2.5% is fresh water and because most of the water is stored in deep groundwater, only a small amount is easily available for human use. Therefore, ensuring that adequate supply of water is available for human use is essential (Oki & Kanae, Citation 2006). The aim of the study is to review existing ...
The ongoing acidification of the oceans due to the increase of carbon dioxide (CO 2) concentration in the atmosphere and the consequent increased uptake by the sea can be tackled by adding alkaline compounds under controlled conditions.Since this promotes a number of reactions in the carbonate system which ultimately results in a …
In what ways do mining activities interact with groundwater systems ? Mineral resource extraction leads to an inflow of ground-water to the mine or quarry and potentially major modifica-tions of groundwater flow and quality regimes, and thus to various issues requiring consideration during mine evalu-ation, development, operation and closure.
Acid mine drainage (AMD) continues to be a concern in coal mining because it reduces surface water and groundwater quality (Verburg et al., 2009) and may perhaps persist for several years. In the U.S. only, AMD pollutes over 20,000 km of streams (Skousen et al., 2019). Blasting and dewatering exposes sulfide minerals, posing threats …
Hydrochemical impacts of shallow rock industrial-scale mining activities close to sensitive constructed and natural wetlands were investigated. The shallow surficial groundwater and surface water in the Everglades Agricultural Area (EAA) were characterized. The chemical composition of sulfate and chloride in groundwater …
Ground water constitutes a significant operational problem and potential hazard in open-pit and underground mining. The pressure of ground water in geologic discontinuities adversely affects the safety of height and slope angles of open-pit mines, justifying measures to reduce ground-water pressures in their vicinity. The principal hazard in …
Hydrochemical Effects of Limestone Rock Mining. Water, Soil and Air Pollution 217 (1), 95-104. 2 ABSTRACT ... 2002). New data focusing on the surface and ground water interactions are showing that the rock mining has a long term and cumulative impact on stream water quality ((Renken et al., 2008). ...
Investigations were undertaken at the Xutuan and Renlou coal mines in Huaibei coalfield, Anhui Province, China to determine the effects of mining on the geochemical evolution of groundwater in the area. A total of 77 samples were collected between 1999 and 2017 from Neogene, Permian, and Carboniferous aquifers in two …
The study intended to map limestone mines, determine the area, and assess the environmental impact from 2006 to 2019 by using Sentinel-2A, Landsat-7, and Landsat-8 NDVI image resampling technique, utilizing threshold of NDVI, as well as LST estimation in the Yerraguntla industrial hotspot, which is dominated by a limestone mining area of …
This study describes the direct and indirect effects of mining on the karst of the Bakony Region. For this, the results of geological and mining research of the last century, the results of hydrological research of fifty years, as well as the investigations of several decades on the karst of the mountain region are used. Direct effects include the …
Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system around the mine aids in developing strategies for environmental protection and management. AMD has been continuously collected and neutralized at Osarizawa Mine, Akita Prefecture, Japan, since the mine was closed in …
The study of topographic maps (Fig. 3.1), aerial photographs and satellite images reveals that the salient geomorphic features in the UAE include: drainage basins, coastal areas sand dunes, gravel plains and mountains (Fig. 3.2).The following is an interpretation of each of these features and their direct influence on water resources, …
Limestone is a fundamental raw material in various industrial sectors. It is formed due to biochemical precipitation of calcium carbonate, and further compaction over long periods of time.
I hope that this report will be useful to you in development of any future policy or legislation affecting the limestone mining industry. I appreciate this opportunity to be of service to you. ... 7-19 7.2 Ecological Effects of Limestone Quarry Effluent 7-21 7.2.1 Effects of Limestone Quarry Ef- fXj.6nts on Fi.sli7™25 7.2.1.1 Effects on ...
water to wells. Where limestone is an aquifer, there can be concerns that con-taminants from the quarrying operations could escape into the ground water. In many areas of the United States where limestone is found, it gradually . dissolves in rainwater at the surface or in the near-surface ground water. In humid climates, great volumes of ...
Indeed, without preventive measurements, the mining activities can have a negative effect on the environment: hazardous tailings, the mine drainage, infiltration of the polluted liquid effluents in the underground, the degradation of the water quality, and the ecological environment (vegetal and animal biodiversity). ... The ground water did ...
Most abundant form of sulphur in the geosphere has been sulphate. Sulphate, with sulphur in the plus six oxidation state is very stable. Sources of sulphate in groundwater include mineral dissolution, atmospheric deposition and other anthropogenic sources (mining, fertilizer, etc.). Gypsum is an important contributor to the high levels of …
The Himalayan mountains span over 2400 km across Asia and form one of the world's biodiversity hotspots, home to over 10,000 plant and 1200 vertebrate species …
The acceleration effect due to nucleation effect in CSA-limestone powder system has also been stated in other researchers [35], [36], [37]. The second peak which is caused by the depletion of gypsum [37] occurs at 4.82, 4.51, 4.83 and 4.71 h for CSA, CL5, CL15 and CL25, respectively. 5% limestone powder has the greatest positive impact on …
OMAN MINING: Current Status Currently, Oman's mining sector appears to be on a steady growth trajectory with production of minerals growing by near - ly 20 per cent in …
8 Environmental Hazards of Limestone Mining and Adaptive … 125 8.3.1 Impacts on Land and Soil Opencast mining has been associated with a change in land use and land cover of
Mining of minerals is essential for our day-to-day life so is the groundwater. Mother Earth is the custodian of these two essential commodities, and both are part and parcel of sustainable living for human beings. This chapter of book focuses on the need, quantity, quality, and management of groundwater encountered in mines, …
EFFECTS OF MINING; Annual Meeting; TESTIMONIALS. TESTIMONY, Tom Allen, Former Assistant Chief of Division of Drinking and Ground Water, Ohio EPA, Retired 2010 ... Ground Water Ownership. LSC Members Brief. Vol. 127 Issue 10. ... ASSUMING THE DEPTH AVERAGE OF 100 FEET = 15.33 MILLION TONS OF LIMESTONE. AT …
Excess of NO 3-and SO 4 2-were detected in shallow ground water of Nabonne, France and also ground water of the lime stone island of Bermuda is contaminated by Cl and NO 3-as a result of leaching ...
According to the effect of limestone mining in the region, it is proposed that all stakeholders, in particular the owners of mines and cement plants, should pay the requisite attention to the environmental issues prevailing …
Surface water-groundwater interactions lead to variations in redox conditions of epigenetic karst aquifers that may be responsible for acid production (Table 1) and dissolution as surface water recharging karst aquifers provides redox sensitive solutes such as organic carbon, nutrients, metals, and oxygen to the subsurface (Brown et al., …
Groundwater elevations can however be stabilized, but would require 20–30 % of the mean surface water dis-charge from the basin to be recharged to groundwater, along with reductions in pumping ...
About 40% of groundwater in Oman and the UAE is produced from shallow ... A total of 42 surface water and 87 groundwater samples were collected during the 2016 summer and winter seasons, …
Complex sulfide ores such as pyrite (FeS 2), chalcopyrite (CuFeS 2), and sphalerite (ZnS), produced during mining activities, are considered primary sources for AMD formation (Dold, 2014). Fig. 1 shows the formation of AMD and its impacts on the environment (Naidu et al., 2019).As clear from Fig. 1, AMD is formed by the combination …
The mining industry, especially coal mining, may severely affect the spatial and temporal evolution of groundwater. To provide a potential model outlining the hydrogeochemical evolution of groundwater as influenced by coal mining, a multi-layer groundwater system in a coal mining area was investigated. A total of 76 …
Thus, it is evident that the cost of limestone mining operation is variable from mine to mine and from organization to organizations, but it can be kept in check by the local mine management. 3.6.1 Marginal Cost of Production. Limestone mining is a very competitive (throat-cutting) industrial business.
