نتایج جستجو برای: mine water inflow

تعداد نتایج: 579729  

2015
Qi Wang Xinyi Wang Xiaoman Liu Hongying Ji Quanlin Hou

Based on the data of geological drill holes, roadway drifting, transient electromagnetic exploration, mine water inrushes, hydro-geochemistry and water levels on each side of the Haotang Normal Fault, this paper studies the waterbearing capacity and water conductivity of the fault in the Pingdingshan Tian’an Mining Company Limited No. 7 Coal Mine. The results indicate that the Haotang Fault is ...

2011
T. H. M. Rientjes B. U. J. Perera A. T. Haile P. Reggiani

In this study lake levels of Lake Tana are simulated at daily time step by solving the water balance for all inflow and outflow processes. Since nearly 62% of the Lake Tana basin area is ungauged a regionalisation procedure is applied to estimate lake inflows from ungauged catchments. The procedure combines automated multi-objective calibration of a simple conceptual model and multiple regressi...

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

Nowadays, acid mine drainage (AMD) is one of the most important problems in coal mine contamination. The Karmozd coal mines in Mazandaran Province are one of the largest and oldest coal extractions in Central Alborze Coal Basin. The samples of coals, host rocks, mine drainages and secondary surface minerals have been collected in summer season of 2005. On the basis of hydrogeochemistry studies ...

Journal: :Journal of hazardous materials 2009
William M Mayes Hugh A B Potter Adam P Jarvis

Data are presented which evaluate the performance of a pilot-scale treatment system using pelletised hydrous ferric oxide (HFO; a waste stream from coal mine water treatment) as a high surface area sorbent for removing zinc (Zn) from a metal mine water discharge in the North Pennines Orefield, UK. Over a 10-month period the system removed Zn at mean area- and volume-adjusted removal rates of 3....

2008
Peter C. Chu

The Navy’s mine impact burial prediction model creates a time history of a cylindrical or a noncylindrical mine as it falls through air, water, and sediment. The output of the model is the predicted mine trajectory in air and water columns, burial depth/orientation in sediment, as well as height, area, and volume protruding. Model inputs consist of parameters of environment, mine characteristic...

Journal: :تحقیقات نظام سلامت 0
محمد ملکوتیان استاد، مرکز تحقیقات مهندسی بهداشت محیط و گروه بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی کرمان، کرمان، ایران مرضیه جاودان دانشجوی کارشناسی ارشد، مرکز تحقیقات مهندسی بهداشت محیط و گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی کرمان، کرمان، ایران فرناز ایرانمنش مرکز تحقیقات مهندسی بهداشت محیط، دانشگاه علوم پزشکی کرمان، کرمان، ایران

background: as fluoride concentration in drinking water is one of the effective parameters in human health, finding the ways to remove excess amount of fluoride is very important in water supply projects. this study aimed to evaluate mendon bauxite mine in the removal of fluoride from drinking water. methods: this experimental study was conducted from may to october 2013 on synthetic and actual...

2003
Daniel F. Huber Nicolas Vandapel

For several years, our research group has been developing methods for automated modeling of 3D environments. In September, 2002, we were given the opportunity to demonstrate our mapping capability in an underground coal mine. The opportunity arose as a result of the Quecreek mine accident, in which an inaccurate map caused miners to breach an abandoned, water-filled mine, trapping them for seve...

2006
JOAN E. SHELDON MERRYL ALBER

Freshwater fraction and tidal prism models are simple methods for estimating the turnover time of estuarine water. The freshwater fraction method prominently features flushing by freshwater inflow and has sometimes been criticized because it appears not to include flushing by seawater, but this is accounted for implicitly because the average estuary salinity used in the calculation reflects all...

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