岩石矿物学杂志2024，Vol.43Issue(4)：1005-1011,7.DOI:10.20086/j.cnki.yskw.2024.0416
水钠锰矿介导下晴隆锑矿区黄壤中锑形态的转化
Transformation of antimony speciation in the yellow soil of Qinglong antimony mine induced by δ-MnO2
摘要
Abstract
0.015％,0.025％,0.05％and 0.1％8-MnO2 were added to yellow soil of Guizhou Qinglong antimony mine by in-situ processing.After 20 days of flooding,the content of Mn and Sb in suspension and the content of each speciation of Mn and Sb in soil were determined,and the correlation analysis of each parameter were per-formed to clarify the effect of Mn oxides on the speciations of Sb.The results showed that the contents of Mn in sus-pension and three speciations of Mn in soil gradually increased with the increase of δ-MnO2,and the order of Mn content of all speciations in soil was consistent with that in control soil.With the increase of δ-MnO2,the contents of non-specific adsorption,specific adsorption and residual Sb decreased,while the content of Fe/Mn/Al oxide bound Sb increased.The Mn loading was significant positive correlation with all speciations of Mn and Fe/Mn/Al oxide bound Sb(P＜0.05),and significant negative correlation(P＜O.1)with residual Sb.Fe/Mn/Al oxide bound Sb and residual Sb were significant positive correlation(P＜0.05)and negative correlation(P＜0.1)with all speci-ations of Mn,respectively.δ-MnO2 existed in various speciations in yellow soil.After flooding,the speciations of Mn transformed to different degrees,and various speciations of Mn were oxidized,adsorbed and complexed with Sb,which made the non-specific adsorption Sb,specific adsorption Sb and residual Sb transform to Fe/Mn/Al ox-ide bound Sb in soil.关键词
黄壤/δ-MnO2/锑形态/锰形态Key words
yellow soil/δ-MnO2/antimony speciations/manganese speciations分类
资源环境引用本文复制引用
刘玉蛟,朱霞萍,崔婷,任维,赵平..水钠锰矿介导下晴隆锑矿区黄壤中锑形态的转化[J].岩石矿物学杂志,2024,43(4):1005-1011,7.基金项目
国家自然科学基金项目(42267009) （42267009）
贵州省地质矿产勘查开发局地质科研项目(2019)1# National Natural Science Foundation of China(42267009) （2019）
Bureau of Geology and Mineral Explo-ration and Development Guizhou Province(2019)1# （2019）
