منابع مشابه
Causes and Prevention for Sinkhole in Limestone Mine
In recent, the placement of backfill in underground mines has emerged as a new paradigm in research as it not only improves safety but also allows disposal of byproducts including coal ash. In this regards, this paper addresses the backfilling challenges in limestone mine to prevent sinkhole and subsidence. Limestone mines, generally regarded as being safer than coal and metal mines, have been ...
متن کاملMine water treatment with limestone for sulfate removal.
Limestone can be an option for sulfate sorption, particularly from neutral mine drainages because calcium ions on the solid surface can bind sulfate ions. This work investigated sulfate removal from mine waters through sorption on limestone. Continuous stirred-tank experiments reduced the sulfate concentration from 588.0mg/L to 87.0mg/L at a 210-min residence time. Batch equilibrium tests showe...
متن کاملITL-MINE: Mining Frequent Itemsets More Efficiently
The discovery of association rules is an important problem in data mining. It is a two-step process consisting of finding the frequent itemsets and generating association rules from them. Most of the research attention is focused on efficient methods of finding frequent itemsets because it is computationally the most expensive step. In this paper, we present a new data structure and a more effi...
متن کاملLSC-Mine: Algorithm for Mining Local Outliers
Data objects which differ significantly from the remaining data objects are referred to as outliers. Density-based algorithms for mining outliers are very effective in detecting all forms of outliers, where data objects with fewer neighbors are likely to be outliers than are those with more neighbors. However, existing density-based algorithms engage in huge repetitive computation and compariso...
متن کاملComparison of Sludge Characteristics between Lime and Limestone/lime Treatment of Acid Mine Drainage
The U.S. Geological Survey, in cooperation with the Colorado School of Mines and the U.S. Environmental Protection Agency, has demonstrated the application of pulsed limestone bed (PLB) treatment of acid mine drainage (AMD) at the Argo tunnel discharge near Idaho Springs, Colorado. Current technology for AMD treatment at the Argo facility is neutralization with lime. However, lime neutralizatio...
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1984
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.100.1160_988