地质通报2012，Vol.31Issue(1)：101-107,7.
矿业活动固体废弃物中重金属元素释放机理的浸出实验
Research on releasing of heavy metals in solid wastes from mining activity.
摘要
Abstract
The solid wastes from mining activity include mullock, mine tailing and smelting slag, which are piled in the open air and will have great impact on the surrounding environment after long-term natural weadiering. In this paper, mullock, mine tailing and smelting slag are sampled by taking Panzhihua V-Ti magnetite mining activity as an example to study die releasing mechanism and the environmental effect of heavy metals in these solid wastes under the conditions of different pH values and granularities through the lixiviating experiment. The results show that the lixiviating rate of most elements becomes higher under lower pH value and lower under alkaline condition, but the lixiviating rate of V and Cr in mullock and that of Ti in slag become higher under alkaline condition; the lixiviating rate of thin samples is higher than that of thick ones under the same pH condition, but the lixiviating rate of Ti, V, Co and Cr under the pH value of 12 and that of Ti and Cu under the pH value of 1 are abnormal, that is, the lixiviating rate of thick samples is higher than that of thin samples. The heavy metals released by solid water will certainly have impact on the surrounding environment, so they should be given closer monitoring.关键词
固体废弃物/重金属元素/粒度/攀枝花钒钛磁铁矿Key words
solid waste/ heavy metal/ granularity/ Panzhihua V-Ti magnetite分类
资源环境引用本文复制引用
徐争启,倪师军,滕彦国,王金生,赵永鑫,张成江..矿业活动固体废弃物中重金属元素释放机理的浸出实验[J].地质通报,2012,31(1):101-107,7.基金项目
国家自然科学基金项目《钢渣中钒释放的地球化学过程及其对水土质量的影响》(批准号:40603017)、博士点基金项目《钒钛磁铁矿冶炼废渣中钒释放的地球化学机理及环境风险》(编号:20090003110021)和四川省科技支撑计划项目《攀枝花典型矿业活动区潜在环境污染风险评价及调控技术研究》(编号:2009FZ0051) （批准号:40603017）
