Bio-reduction and synchronous removal of hexavalent chromium from aqueous solutions using novel microbial cell/algal-derived biochar particles: Turning an environmental problem into an opportunity

doi:10.1016/j.biortech.2020.123304

	Bio-reduction and synchronous removal of hexavalent chromium from aqueous solutions using novel microbial cell/algal-derived biochar particles: Turning an environmental problem into an opportunity
	Huang, Sheng-Wei 1,2; Chen, Xu 2,3; Wang, Dong-Dong 2; Jia, Hui-Ling 2,3; Wu, Lifang 1,2,3
刊名	BIORESOURCE TECHNOLOGY
	2020-08-01
卷号	309
关键词	Dolichospermum flos-aquae Biochar Proteus mirabilis PC801 Hexavalent chromium Bioremediation
ISSN号	0960-8524
DOI	10.1016/j.biortech.2020.123304
通讯作者	Wu, Lifang(lfwu@ipp.ac.cn)
英文摘要	In China, Dolichospermum flos-aquae is one of the most prevalent bloom-forming cyanobacteria and thus a major challenge for the concerned catchment area. To solve this problem and turn it into an opportunity for heavy metal remediation, we investigated the potential of D. flos-aquae for production algal biochar, and constructed a microbe-algal biochar composite. The microbe-biochar composite (biochar immobilized Proteus mirabilis PC801) showed superior hexavalent chromium removal capacity. It produced 100% Cr(VI) (150 mg/L) removal efficiency, with 87.7% total Cr immobilized in/on the particles and only 12.3% Cr(III) left in solution. Furthermore, Scanning electron microscopy-energy dispersive spectroscopy and antioxidase activity results showed that Cr(VI) reduction mainly occurred outside the cells, and the biochar can effectively protect P. mirabilis YC801 from the direct toxicity of chromium, thereby promoting the removal efficiency. Overall, this study provides a promising approach by utilizing this harmful algae for the bio-remediation of Cr(VI)-contaminated groundwater in practical application.
资助项目	National key R&D Program of China[2018YFD0502001] ; Science and Technology Service Program of Chinese Academy of Sciences[KFJ-STS-ZDTP-054] ; Opening foundation of Anhui Province of Key Laboratory of Environmental Toxicology and Pollution Control Technology[Y79AH72588] ; Key Program of 13th Five-Year Plan, Hefei Institutes of Physical Science, Chinese Academy of Sciences[kp-2017-21]
WOS关键词	HEAVY-METALS ; ASPERGILLUS-NIGER ; ORGANIC-MATTER ; ALGAL BIOCHAR ; FTIR ; BIOSORPTION ; STRESS ; WASTE ; IONS ; DEGRADATION
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000569075100010
资助机构	National key R&D Program of China ; Science and Technology Service Program of Chinese Academy of Sciences ; Opening foundation of Anhui Province of Key Laboratory of Environmental Toxicology and Pollution Control Technology ; Key Program of 13th Five-Year Plan, Hefei Institutes of Physical Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/104127]
专题	中国科学院合肥物质科学研究院
通讯作者	Wu, Lifang
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Environm Toxicol & Pollut Control Technol, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Huang, Sheng-Wei,Chen, Xu,Wang, Dong-Dong,et al. Bio-reduction and synchronous removal of hexavalent chromium from aqueous solutions using novel microbial cell/algal-derived biochar particles: Turning an environmental problem into an opportunity[J]. BIORESOURCE TECHNOLOGY,2020,309.
APA	Huang, Sheng-Wei,Chen, Xu,Wang, Dong-Dong,Jia, Hui-Ling,&Wu, Lifang.(2020).Bio-reduction and synchronous removal of hexavalent chromium from aqueous solutions using novel microbial cell/algal-derived biochar particles: Turning an environmental problem into an opportunity.BIORESOURCE TECHNOLOGY,309.
MLA	Huang, Sheng-Wei,et al."Bio-reduction and synchronous removal of hexavalent chromium from aqueous solutions using novel microbial cell/algal-derived biochar particles: Turning an environmental problem into an opportunity".BIORESOURCE TECHNOLOGY 309(2020).