摘要
利用电感耦合等离子质谱(ICP-MS)、离子色谱(IC)和X射线衍射(XRD)等方法研究了马兰煤矿酸性矿井水及其沉淀物的化学成分和物相组成,并通过吸附解吸实验和PHREEQC水化学模拟计算研究了典型酸性矿井水样品中Pb,Th,U,Be,Zn,Ni,Co,Cd,Cu,As,Cr,V,Ba等有害元素的迁移特性.研究表明:①煤矿酸性矿井水中SO42-,Fe,Mn,Al,Pb,Th,U,Be,Zn,Ni,Co,Cu等离子含量较高,对环境存在潜在危害;②酸性矿井水中有害元素的迁移主要受pH,Fe-A l-Mn含量和水体颗粒物矿物组成的控制;③Fe,Al和Mn的含量随pH上升而迅速下降,并控制着Pb,Th,U,Be,Zn,N i,Co,Cu等潜在有害微量离子的迁移行为;④各离子随pH上升被去除的先后顺序为:Th>Fe>Pb>Cr>Al>Cu>Be>U>Zn>As>Cd>Mn>Co>Ni>Ba;⑤酸性矿井水中V不能够随pH的升高而去除,反而会有更多的V溶解在水中.
The hydrochemistry and mineralogy of acid coal mine drainage and its precipitate from Malan mine,were investigated using inductively coupled plasma mass spectrometry(ICP-MS),ion chromatography(IC),X-ray diffraction(XRD) and hydrogeochemistry software PHREEQCI.The migration characteristics of hazardous elements such as Pb,Th,U,Be,Zn,Ni,Co,Cd,Cu,As,Cr,V and Ba in acid coal mine drainage were studied by adsorption and desorption experiments.The preliminary results are as follows: ① The concentrations of SO24,F...
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2007年第3期261-266,共6页
Journal of China Coal Society
基金
国家自然科学基金资助项目(40272128)
全国优秀博士学位论文作者专项资金资助项目(200045)
关键词
煤矿酸性矿井水
有害元素
吸附解吸
斯沃特曼铁矿
acid coal mine drainage
hazardous elements
adsorption and desorption
schwertmannite
