نتایج جستجو برای: coal mine

تعداد نتایج: 51787  

Journal: :Applied microbiology 1953
W W LEATHEN S A BRALEY L D MCINTYRE

I This contribution is one of a series of papers by the Multiple Fellowship on Mine Acid Control sustained at Mellon Institute by the Sanitary Water Board, Department of Health, Commonwealth of Pennsylvania. catalyst. Indeed, Carpeniter and Heirndon (1933) suggested that bacterial activity by some sulfur oxidizing organism might explain, in part, the high acidities usually encountered in bitumi...

2005
WILLIAM W. LEATHEN S. A. BRALEY

I This contribution is one of a series of papers by the Multiple Fellowship on Mine Acid Control sustained at Mellon Institute by the Sanitary Water Board, Department of Health, Commonwealth of Pennsylvania. catalyst. Indeed, Carpeniter and Heirndon (1933) suggested that bacterial activity by some sulfur oxidizing organism might explain, in part, the high acidities usually encountered in bitumi...

Journal: Geopersia 2017

Aghdarband coal mine, located in NE of Iran, with annual coal and waste production capacity of about twenty million and six thousand tons, respectively, causes the increase of the concentration of some heavy metals in the soil and surrounded sediments. This paper deals with geochemical distribution and environmental effects of the heavy metals on the sediments around the mine, using geochemical...

Journal: :International Journal of Applied Information Systems 2012

2013
Brian D. Lutz Emily S. Bernhardt William H. Schlesinger

While several thousand square kilometers of land area have been subject to surface mining in the Central Appalachians, no reliable estimate exists for how much coal is produced per unit landscape disturbance. We provide this estimate using regional satellite-derived mine delineations and historical county-level coal production data for the period 1985-2005, and further relate the aerial extent ...

Journal: :International journal of environmental health research 2010
Yilan Liao Jinfeng Wang Jilei Wu Luke Driskell Wuyi Wang Ting Zhang Gu Xue Xiaoying Zheng

Shanxi province in northern China has one of the highest reported prevalence rates of neural tube defects (NTDs) in the world. The current study selected Heshun, the county with the highest rate of NTDs in Shanxi, as a study area and tested whether residence in a coal mining area was a contributing factor. A NTD cluster was detected in an area within 6 km of the coal mines for almost every year...

2010
Anu Martikainen Charles Taylor Roy Grau

Utilization of belt air in underground coal mines has been discussed extensively during the last decade. The Final Report of the Technical Study Panel on the Utilization of Belt Air and the Composition and Fire Retardant Properties of Belt Materials in Underground Coal Mining formed by the Miner Act of 2006 recommends research on leakage, use of booster fans, and escapeway safety. This paper di...

2013
Kumar Gubbala M. suman

The most important aspect of the MINER Act is providing reliable communication for miners before and after tragic accidents. Reliable communication has always been a challenge in underground mines due to changing topologies and harsh environment. In addition, disasters disable electricity and communications cables, block tunnels and cause fire. These may damage the communication infrastructure ...

رقیمی, مصطفی, شمعانیان, غلامحسین, قلی پور, محسن, مظاهری, سید احمد,

This study mostly investigated the environmental impact of acid mine drainage (AMD) on the tailing of coal cleaning factory in Mazandaran province. This factory is one of the largest and the oldest in the coal concentration in Central Alborze Coal Basin. So, annually huge amounts of coal tailing will be left. The sampling of coal, coal tailing, drainage water from coal tailing, factory's waste ...

2005
Jay W. Hawkins Eric F. Perry

Major proposed changes in drainage control from a large underground mine pool required a detailed assessment of the hydrology, geochemistry, and impacts on the receiving streams. Proposed changes entail relocation of the withdrawal and treatment facilities to an adjoining, but separate watershed and increasing the pumping rate by 35%. Fifteen major and numerous smaller mines in two coal seams c...

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