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In the present study collection rate constant (kc) was modeled as a function of the most significant operating variables which affect gas dispersion in a flotation column (i.e. superficial gas velocity, slurry density (solids\%) and frother dosage/type) using artificial neural network (ANN) and statistical techniques. Experiments were performed in an industrial flotation column (4 m in diameter and 12 m in height) in rougher circuit of a copper concentrator. RTD studies using a radioactive tracer have already conf...

The main goal of a small scale stream sediments geochemical survey is to identify the promising areas for the further exploration in next steps of geochemical exploration. To achieve the target the thresholds value of each interested element within the geochemical sample must be specified at the first step. In this research it is attempted to use the raw geochemical data after pre-processing to delineate the anomalous area within the Khusf 1:50000 sheets which is located at 35 km west of Birjand at the south khora...

Geographic Information Systems (GISs) are very useful tools for managing, checking, and organizing spatial information from many sources and of many types in thematic layers. One of the most important applications of geographical information system (GIS) is the site selection for various problems. The main purpose of this research is the selection of the best place for establishes the processing plant next to the one mineral deposit, which is located in Howe Hill in United Kingdom (UK), using of IDRISI software. T...

As the water has a vital role in human life and economic development, its shortage can cause some economical, agricultural, industrial and environmental problems. These problems are more prominent in warm and dry regions. Therefore, in such areas the water resources management as well as the treatment and recycling of the mine drainage have the great importance. In the underground and open pit mines, we usually deal with the huge amounts of the contaminated water. In this research, by considering of the statistics...