Partitioning Behavior of 4-Methyl Cyclohexane Methanol in Two Appalachian Coal Preparation Plants
INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION(2016)
摘要
To assess the environmental fate and partitioning of 4-methyl cyclohexane methanol (MCHM), plant-wide water-sampling surveys were conducted at two Appalachian coal preparation plants. Samples were recovered from various streams within the coal preparation plants as well as environmental discharges, including impoundment drains and groundwater-monitoring wells. The results indicate measurable MCHM concentrations are only found immediately around the flotation circuit (feed, concentrate, and tailings). Samples from downstream units, including thickeners, impoundments, and discharge points show no measurable concentration of MCHM implying that volatilization and adsorption are strongly influencing the measurable concentration.
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关键词
Coal preparation,MCHM,Environmental impacts,Flotation reagents
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