基于不同煤矸石的成分分析及堆存区地下水污染特征研究  

Different Coal Gangue Elements Composition and Groundwater Pollution Characteristics in Natural Storage Area

作　　者：吴松 李修好 胡新 衡强强 汪银梅[3] WU Song;LI Xiu-hao;HU Xin;HENG Qiang-qiang;WANG Yin-mei(JiangSu Fangzheng Environmental design research CO., TLD, Xuzhou 221002,China;Xuzhou Pohu EnvironmentalPretection Technology Development Co. LTD, Xuzhou 221111,China;School of Environmental Engineering, XuzhouInstitute of Technology,Xuzhou 221111,China)

机构地区：[1]江苏方正环保设计研究有限公司,江苏徐州221002 [2]徐州鄱湖环保科技发展有限公司,江苏徐州221111 [3]徐州工程学院环境工程学院,江苏徐州221111

出　　处：《环境科技》2019年第3期28-33,共6页Environmental Science and Technology

基　　金：江苏省六大高峰人才项目(JNHB-005);徐州工程学院校级科研项目(青年基金)(XKY2018242)

摘　　要：选择粗块矸、洗选矸、混合矸以及56a混合矸为研究对象,研究了不同煤矸石元素组成,分析了堆存区地下水污染特征。结果表明:不同煤矸石的成分存在一定的差别,洗选矸中Ca2+,Cr6+含量最高,粗块矸中Fe3+含量最低,Pb2+,F-,Mg2+含量最高。从堆积区地下水污染特性来看,洗选矸堆存区地下水中的Mg2+,Ca2+浓度较低,粗块矸堆存区地下水中Mg2+,Ca2+浓度较大;混合矸堆存区地下水中的pH值,Fe3+,Pb2+,Mn2+,Cr6+,F-浓度最大,随着堆存时间和淋洗时间的增加,地下水污染程度降低。Crude block gangue, mixed gangue and washing gangue as well as old mixed gangue (5~6 years) were as objects, the different coal gangue elements composition were analysed, and the groundwater pollution of natural storage area was monitored. The results indicated that the elements composition were significantly different among the different coal gangue. The Cr6+, Ca2+ concentration in washing gangue was the highest, the Pb2+, F-, Mg2+ concentration was the highest and the Fe was the lest in crude block gangue. The pH, Fe3+, Pb2+, Mn2+, Cr6+, F of the groundwater was most serious in the mixed gangue area. Coupled with the increase of time and hydraulic exchange strength, the pollution concentration of the groundwater reduced gradually.

关 键 词：煤矸石 元素组成 地下水污染 

分 类 号：X5[环境科学与工程—环境工程]