Screening and performance optimization of fungi for heavy metal adsorption in electrolytes

doi:10.3389/fmicb.2024.1371877

IMR OpenIR

	Screening and performance optimization of fungi for heavy metal adsorption in electrolytes
	Yang, Yuhui 1,2; Liu, Rui 2; Zhou, Yizhou 3; Tang, Yingnan 4; Zhang, Jing 5; Wang, Yu 1,2; Dai, Tingting 1,2; Zou, Ping 2; Bi, Xiaoyi 2; Li, Shuibing 2
通讯作者	Liu, Rui(starliurui@126.com) ; Zhou, Yizhou(yzzhou@imr.ac.cn)
	2024-03-25
发表期刊	FRONTIERS IN MICROBIOLOGY
卷号	15 页码:15
摘要	The resource recovery and reuse of precious metal-laden wastewater is widely recognized as crucial for sustainable development. Superalloy electrolytes, produced through the electrolysis of superalloy scrap, contain significant quantities of precious metal ions, thereby possessing substantial potential for recovery value. This study first explores the feasibility of utilizing fungi to treat Superalloy electrolytes. Five fungi resistant to high concentrations of heavy metals in electrolytes (mainly containing Co, Cr, Mo, Re, and Ni) were screened from the soil of a mining area to evaluate their adsorption characteristics. All five fungi were identified by ITS sequencing, and among them, Paecilomyces lilacinus showed the best adsorption performance for the five heavy metals; therefore, we conducted further research on its adsorption characteristics. The best adsorption effect of Co, Cr, Mo, Re, and Ni was 37.09, 64.41, 47.87, 41.59, and 25.38%, respectively, under the conditions of pH 5, time 1 h, dosage 26.67 g/L, temperature 25-30 degrees C, and an initial metal concentration that was diluted fivefold in the electrolyte. The biosorption of Co, Mo, Re, and Ni was better matched by the Langmuir model than by the Freundlich model, while Cr displayed the opposite pattern, showing that the adsorption process of P. lilacinus for the five heavy metals is not a single adsorption mechanism, but may involve a multi-step adsorption process. The kinetics study showed that the quasi-second-order model fitted better than the quasi-first-order model, indicating that chemical adsorption was the main adsorption process of the five heavy metals in P. lilacinus. Fourier transform infrared spectroscopy revealed that the relevant active groups, i.e., hydroxyl (-OH), amino (-NH2), amide (- CONH2), carbonyl (-C = O), carboxyl (-COOH), and phosphate (PO43-), participated in the adsorption process. This study emphasized the potential application of P. lilacinus in the treatment of industrial wastewater with extremely complex background values.
关键词	biosorption industrial wastewater treatment Paecilomyces lilacinus precious metals recovery superalloy electrolytes
资助者	Special Project for Social Development of Yunnan Province ; National Natural Science Foundation of China ; Qilu Lake Field Observation and Research Station for Plateau Shallow Lake in Yunnan Province
DOI	10.3389/fmicb.2024.1371877
收录类别	SCI
语种	英语
资助项目	Special Project for Social Development of Yunnan Province[202103AC100001] ; National Natural Science Foundation of China[31770545] ; National Natural Science Foundation of China[31470547] ; Qilu Lake Field Observation and Research Station for Plateau Shallow Lake in Yunnan Province[202305AM070001]
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:001198068100001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185274
专题	中国科学院金属研究所
通讯作者	Liu, Rui; Zhou, Yizhou
作者单位	1.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming, Peoples R China 2.Yunnan Univ, Inst Ecol Res & Pollut Control Plateau Lakes, Sch Ecol & Environm Sci, Kunming, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 4.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang, Peoples R China 5.Shenyang Jianzhu Univ, Int Sch, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yuhui,Liu, Rui,Zhou, Yizhou,et al. Screening and performance optimization of fungi for heavy metal adsorption in electrolytes[J]. FRONTIERS IN MICROBIOLOGY,2024,15:15.
APA	Yang, Yuhui.,Liu, Rui.,Zhou, Yizhou.,Tang, Yingnan.,Zhang, Jing.,...&Li, Shuibing.(2024).Screening and performance optimization of fungi for heavy metal adsorption in electrolytes.FRONTIERS IN MICROBIOLOGY,15,15.
MLA	Yang, Yuhui,et al."Screening and performance optimization of fungi for heavy metal adsorption in electrolytes".FRONTIERS IN MICROBIOLOGY 15(2024):15.