Application of a Manganese Ore Constructed Wetland for Radium Removal from Lead-Zinc Mine Water
Chunhui Zhang, Xiangyu Gao, Liangliang Wang, Zheng Li, Haoran Li, Zhihe Zhang, Minying Jin
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School of Chemical and Environmental Engineering,
China University of Mining and Technology (Beijing),
Room 607, Yifu Science and Research Building, No. Ding 11, Xueyuan Road, Beijing 100083, China
Publish date: 2015-11-27
Submission date: 2015-07-25
Final revision date: 2015-09-04
Acceptance date: 2015-09-05
Pol. J. Environ. Stud. 2015;24(6):2773–2777
To remedy the radium (Ra) in lead-zinc mine water, a laboratory-scale horizontal subsurface flow constructed wetland was designed. In lab-scale wetlands, a manganese ore constructed wetland was proven to be a feasible treatment technology for Ra removal. The results showed that with the influent flow loading rate of 0.096 m/d, after the treatment of manganese ore constructed wetlands (CWs), the 226Ra and aRa removal efficiencies were 89.5-94.7% and 84.1-92.3%. And the removal efficiencies of SO4 2-, Zn, Pb, Cu, Cd, As, Fe, and Mn were 65.4%, 93.7%, 88.5%, 86.2%, 82.4%, 76.3%, 98.3%, and 97.8%, respectively.