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Chemcial Industry and Engineering 2021, Vol. 38 Issue (5) :59-66    DOI: 10.13353/j.issn.1004.9533.20201012
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Application and Mechanism of Modified and Immobilized Red Mud to Remove Mn(Ⅱ) in Mine Wastewater
Chen Liping, Li Yongchao, Huang He, Xu Zheng, Ren Bozhi
School of Civil Engineering, Hunan University of Science and Technology, Hunan Xiangtan 411201, China

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Abstract Red mud, as a solid waste in alumina production, can be used as adsorbent to remove Mn(Ⅱ) from acid wastewater. Sequencing batch experiments were used to study the Mn(Ⅱ) removal characteristics of different modified red mud, and the removal capacity of red mud microspheres under dynamic conditions was also investigated. The mechanism of Mn(Ⅱ) removal by red mud was also analyzed by X-ray diffraction (XRD), Fourier transform infrared spectrometry (FTIR), Specific surface area tester (BET), X-ray photoelectron spectroscopy (XPS) Characterization. Batch experiment results showed that the Mn(Ⅱ) adsorption capacity of different samples was in order of heat-treated red mud
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Articles by authors
Chen Liping
Li Yongchao
Huang He
Xu Zheng
Ren Bozhi
Keywordsenvironmental engineering   Mn(Ⅱ)   red mud   immobilized beads   removal mechanism     
Received 2020-11-11;
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Chen Liping, Li Yongchao, Huang He, Xu Zheng, Ren Bozhi.Application and Mechanism of Modified and Immobilized Red Mud to Remove Mn(Ⅱ) in Mine Wastewater[J]  Chemcial Industry and Engineering, 2021,V38(5): 59-66
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