APPLICATION OF POSITIVE MATRIX FACTORIZATION TO IDENTIFY POTENTIAL SOURCES OF TRACE METALS IN WATER FROM SUBSIDENCE AREA

作者：Liu, Xianghong; Yu, Jingcun; Sun, Linhua; Gui, Herong

来源：Fresenius Environmental Bulletin, 2016, 25(12A): 5953-5959.

• trace metals
• source
• subsidence area
• coal mining
• EPA PMF

Water in the subsidence area induced by underground coal mining is important for the environmental protection in northern Anhui Province, China. In this study, EPA PMF model has been applied for the concentrations of seven kinds of trace metals (Pb, V, Cr, Mn, Co, Ni and Cu) in water from the subsidence area in the Zhuxianzhuang coal mine, northern Anhui Province, China for identifying their potential sources. Coefficients of variation and p-value of Anderson-Darling test of metal concentrations indicate that they are affected by multi factors (natural processes and anthropogenic discharge). Based on the variations of Q values, three sources have been determined by EPA PMF model: waste discharge, natural processes and coal gauge dump, and their contributions are different for the water chemistry in different pools. Moreover, for protecting the water quality, clean the discharged waste, and move the coal gauge dump near the subsidence area to other places and take environmental restoration are needed.

• 出版日期2016
• 单位中国矿业大学（北京）