GYIG OpenIR  > 地球内部物质高温高压实验室
Bioleaching Performance of Titanium from Bauxite Residue Under a Continuous Mode Using Penicillium Tricolor
Yang Qu; Hui Li; Ben Shi; Hannian Gu; Guangxuan Yan; Zipeng Liu; Ruizhi Luo
2022
Source PublicationBulletin of Environmental Contamination and Toxicology
Volume109Pages:61–67
Abstract

The present study performed a continuous mode of bioleaching to investigate the leaching efficiency of Titanium (Ti) from bauxite residue using Penicillium Tricolor at between 4% and 12% pulp densities during a 120-day running. Obtained results of the current study showed that increased pulp density led to a decrease in biomass, dissolved oxygen, and amount of leaching Ti as well as an increase in pH value. Further, it was found that efficiency of bioleaching can be enhanced by increasing the rate of aeration, retention time, and concentration of carbon source. However, it was also evident that, at high pulp density, excessive agitation did not give an expected leaching efficiency but a collapse of biomass. In addition, results of the present study showed that the maximum leaching amount of Ti was 3202 mg/L with a corresponding leaching ratio of 50.35% during the whole bioleaching process. Moreover, it was noted that the biomass showed a significant negative correlation with the pH value and dissolved oxygen. However, the biomass showed a significant positive correlation with leaching amount of Ti and thus indicate that microbial metabolic activities are the uppermost factor affecting the continuous leaching performance.

DOI10.1007/s00128-022-03518-2
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Indexed BySCI
Language英语
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13601
Collection地球内部物质高温高压实验室
地球深部物质与流体作用地球化学研究室
Affiliation1.School of Environmental and Natural Science, Zhejiang University of Science & Technology, Hangzhou, 310023, China
2.Department of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, China
3.Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
4.School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang, 453007, China
Recommended Citation
GB/T 7714
Yang Qu,Hui Li,Ben Shi,et al. Bioleaching Performance of Titanium from Bauxite Residue Under a Continuous Mode Using Penicillium Tricolor[J]. Bulletin of Environmental Contamination and Toxicology,2022,109:61–67.
APA Yang Qu.,Hui Li.,Ben Shi.,Hannian Gu.,Guangxuan Yan.,...&Ruizhi Luo.(2022).Bioleaching Performance of Titanium from Bauxite Residue Under a Continuous Mode Using Penicillium Tricolor.Bulletin of Environmental Contamination and Toxicology,109,61–67.
MLA Yang Qu,et al."Bioleaching Performance of Titanium from Bauxite Residue Under a Continuous Mode Using Penicillium Tricolor".Bulletin of Environmental Contamination and Toxicology 109(2022):61–67.
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