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granite quarry and crusher environmental Rank Level: 4.7/5 5,672 . granite quarry and crusher environmental impacts. ... Swaziland Greenstone Quarry.More information about impacts of granite quarries on ... The environmental impacts of ... Department of Mines and Geology in lizenithne and granite quarry ...
Ore beneficiation equipment, sand making equipment, crushing equipment and powder grinding equipment, which are widely used in various industries such as metallurgy, mine, chemistry, building material, coal, refractory and ceramics.
The present study focused on environmental impact assessment (EIA) due to aggregate quarrying and crushing activities at four selected mining/crusher clusters in the middle catchment of Dwarka river basin of Eastern India. EIA is done both spatially and cluster wise considering the impacts of 10 number of influencing factors on 12 number of environmental components. Simple composite, AHP-based fuzzy and PCA-based fuzzy logic EIA models identified highly impacted zones in different clusters. Accuracy assessment is done using eight parameters and the accuracy assessment of the used models suggested that PCA based fuzzy logic model identified the impacted zone more accurately. Folchi model identified 19 factor-specific impacts on different environmental components and it is found that air quality surrounding crusher units affected more. Impacts on surface water due to dust deposition and waste water influx, contamination of underground water due to deep mining are also very prominent.
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Mining and quarrying for minor minerals impart significant economic, environmental and social impacts in and around the affected areas. The problem is severe in the small river catchments as the effective area available for assimilating negative impactsof the activity is minimal, compared to large river basins. To address these issues, an investigation has been carried out in two river basins of southern Western Ghats (India)the NetravatiGurpur and PeriyarChalakudy river basins. Both these basins host two important port cities of south IndiaKochi and Mangalore. The study reveals that about 6.75106ty1 of hard rocks are being extracted in the NetravatiGurpur basin through 64 quarries. At the same time, the total number of quarries and extracted amounts in the PeriyarChalakudy river basin are 525 and 10.47106ty1, respectively. Many hillocks in the region are turned to a cluster of ugly scars, degrading the ecology and aesthetics of the area. Lowering of water table, modification or disappearance of natural drainages and environmental pollution are some of the other observations noticed in the area. The environmental impacts of laterite quarrying are comparatively less than that of rock quarrying as removal of the hard laterite cap rock enhances water percolation and makes the area more irrigable for agriculture. The study stresses the need for environment-friendly quarrying alternatives with stringent guidelines to improve the overall environmental quality of the area on one hand and to meet the developmental requirements on the other.
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We thank the Director, National Centre for Earth Science Studies (NCESS), Thiruvananthapuram for encouragement and support. Thanks are also due to Shri. Eldhose K. for supporting in field work in NetravatiGurupur river basins.
Vandana, M., John, S.E., Maya, K. et al. Environmental impact of quarrying of building stones and laterite blocks: a comparative study of two river basins in Southern Western Ghats, India. Environ Earth Sci 79, 366 (2020). https://doi.org/10.1007/s12665-020-09104-1
Particulate matter concentration by three to four times amid lockdown.Surface temperature is reduced by 35C.Amid lockdown noise level is reduced from 85dBA to <65dBA.Total dissolve solid concentration in river water is reduced by two times.
Stone quarrying and crushing spits huge stone dust to the environment and causes threats to ecosystem components as well as human health. Imposing emergency lockdown to stop infection of COVID 19 virus on 24.03.2020 in India has created economic crisis but it has facilitated environment to restore its quality. Global scale study has already proved the qualitative improvement of air quality but its possible impact at regional level is not investigated yet. Middle catchment of Dwarka river basin of Eastern India is well known for stone quarrying and crushing and therefore the region is highly polluted. The present study has attempted to explore the impact of forced lockdown on environmental components like Particulate matter (PM) 10, Land surface temperature (LST), river water quality, noise using image and field derived data in pre and during lockdown periods. Result clearly exhibits that Maximum PM10 concentration was 189 to 278 g/m3 in pre lockdown period and it now ranges from 50 to 60g/m3 after 18days of the commencement of lockdown in selected four stone crushing clusters. LST is reduced by 35 C, noise level is dropped to <65dBA which was above 85dBA in stone crusher dominated areas in pre lockdown period. Adjacent river water is qualitatively improved due to stoppage of dust release to the river. For instance, total dissolve solid (TDS) level in river water adjacent to crushing unit is attenuated by almost two times. When entire world is worried about the appropriate policies for abating environmental pollution, this emergency lockdown shows an absolute way i.e. pollution source management may restore environment and ecosystem with very rapid rate.