Selective Parameters and Bioleaching Kinetics for Leaching Vanadium from Red Mud Using Aspergillus niger and Penicillium tricolor

doi:10.3390/min9110697

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 应用与环境微生物研究

	Selective Parameters and Bioleaching Kinetics for Leaching Vanadium from Red Mud Using Aspergillus niger and Penicillium tricolor
	Qu, Yang 1; Li, Hui 1; Wang, Xiaoqing 1; Tian, Wenjie 1; Shi, Ben 1; Yao, Minjie 2; Cao, Lina 1; Yue, Lingfan 1
刊名	MINERALS
	2019
卷号	9 期号:11 页码:697
关键词	red mud bioleaching kinetics fungi
DOI	10.3390/min9110697
产权排序	1
文献子类	Article
英文摘要	In the present study, using Aspergillus niger and Penicillium tricolor, the influence of the selected parameters, including sucrose concentration, inoculation size of spores, pulp density, and pre-culture time, on the bioleaching efficiency (biomass, organic acids production, and vanadium extraction, respectively) of red mud were studied. The bioleaching kinetics under optimal conditions were also explored. Sucrose concentration showed a positive linear effect on bioleaching efficiency below 143.44 and 141.82 g/L using A. niger and P. tricolor, respectively. However, a higher concentration was unfavorable for vanadium extraction. The inoculation size of spores showed an insignificant effect on both biomass and vanadium extraction if it exceeded the lowest coded levels (0.5 x 10(7)/mL). Red mud pulp density showed a negative effect on the bioleaching efficiency of A. niger but a positive effect on organic acids production and vanadium extraction of P. tricolor. A pre-culture was indispensable for A. niger but not for P. tricolor due to the fact of its isolation from the red mud examined in this study. The kinetics analysis showed that the leaching rate of vanadium followed a two-domain behavior: initially, a rapid leaching period of approximately 10-15 days and, subsequently, a slow leaching period. Considering the change of the particles' appearance as well as in the elemental composition of the bioleached red mud, it is speculated that the rate of leaching agents through the silicon minerals was the rate-limiting step of dissolution kinetics under the fungal bioleaching process.
学科主题	Earth Sciences
URL标识	查看原文
WOS关键词	INCINERATOR FLY-ASH ; PLANT RESIDUAL ASH ; VALUABLE METALS ; BAUXITE RESIDUE ; RECOVERY ENHANCEMENT ; HEAVY-METALS ; RARE-EARTH ; EXTRACTION ; ELEMENTS ; OPTIMIZATION
WOS研究方向	Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	MDPI
WOS记录号	WOS:000502267100050
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/31144]
专题	环境治理与食品安全领域_应用与环境微生物研究
通讯作者	Li, Hui
作者单位	1.Luoyang Inst Sci & Technol, Dept Environm Engn & Chem, Luoyang 471023, Peoples R China; 2.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Environm & Appl Microbiol, Environm Microbiol Key Lab Sichuan Prov, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Qu, Yang,Li, Hui,Wang, Xiaoqing,et al. Selective Parameters and Bioleaching Kinetics for Leaching Vanadium from Red Mud Using Aspergillus niger and Penicillium tricolor[J]. MINERALS,2019,9(11):697.
APA	Qu, Yang.,Li, Hui.,Wang, Xiaoqing.,Tian, Wenjie.,Shi, Ben.,...&Yue, Lingfan.(2019).Selective Parameters and Bioleaching Kinetics for Leaching Vanadium from Red Mud Using Aspergillus niger and Penicillium tricolor.MINERALS,9(11),697.
MLA	Qu, Yang,et al."Selective Parameters and Bioleaching Kinetics for Leaching Vanadium from Red Mud Using Aspergillus niger and Penicillium tricolor".MINERALS 9.11(2019):697.