南方科技大学知识苑(SUSTech KC): Biocementation of Pyrite Tailings Using Microbially Induced Calcite Carbonate Precipitation

Title	Biocementation of Pyrite Tailings Using Microbially Induced Calcite Carbonate Precipitation
Author	Kang, Bo 1; Zha, Fusheng 1; Deng, Weihao1,2 ; Wang, Runkai 1; Sun, Xianguo 3; Lu, Zhitang 1
Corresponding Author	Zha, Fusheng
Publication Years	2022-06-01
DOI	10.3390/molecules27113608
Source Title	MOLECULES Impact Factor & Quartile
EISSN	1420-3049
Volume	27 Issue:11
Abstract	Tailing sand contains a large number of heavy metals and sulfides that are prone to forming acid mine drainage (AMD), which pollutes the surrounding surface environment and groundwater resources and damages the ecological environment. Microbially induced calcium carbonate precipitation (MICP) technology can biocement heavy metals and sulfides in tailing sand and prevent pollution via source control. In this study, through an unconfined compressive strength test, permeability test, and toxic leaching test (TCLP), the curing effect of MICP was investigated in the laboratory and the effect of grouting rounds on curing was also analyzed. In addition, the curing mechanism of MICP was studied by means of Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction spectroscopy (XRD), and scanning electron microscopy (SEM). The experimental results showed that MICP could induce calcium carbonate precipitation through relatively complex biochemical and physicochemical reactions to achieve the immobilization of heavy metals and sulfides and significantly reduce the impact of tailing sand on the surrounding environment.
Keywords	acid mine drainage (AMD) microbially induced calcium carbonate precipitation (MICP) source control biochemical and physicochemical reactions
URL	[Source Record]
Indexed By	SCI
Language	English
SUSTech Authorship	Others
Funding Project	National Natural Science Foundation of China[41877262,42030710,42107162] ; Natural Science Foundation of Anhui Province[190885QD168] ; Fundamental Research Funds for the Central Universities of China[PA2021 KCPY0055] ; Key R&D Plan of Anhui Province[202104g01020010]
WOS Research Area	Biochemistry & Molecular Biology ; Chemistry
WOS Subject	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS Accession No	WOS:000808891300001
Publisher	MDPI
ESI Research Field	CHEMISTRY
Data Source	Web of Science
Citation statistics	Cited Times [WOS]:6
Document Type	Journal Article
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/343096
Department	School of Environmental Science and Engineering
Affiliation	1.Hefei Univ Technol, Sch Resource & Environm Engn, Hefei 230009, Peoples R China 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518055, Peoples R China 3.Anhui Huizi Construct Engn Co Ltd, Wuhu 241004, Peoples R China
Recommended Citation GB/T 7714	Kang, Bo,Zha, Fusheng,Deng, Weihao,et al. Biocementation of Pyrite Tailings Using Microbially Induced Calcite Carbonate Precipitation[J]. MOLECULES,2022,27(11).
APA	Kang, Bo,Zha, Fusheng,Deng, Weihao,Wang, Runkai,Sun, Xianguo,&Lu, Zhitang.(2022).Biocementation of Pyrite Tailings Using Microbially Induced Calcite Carbonate Precipitation.MOLECULES,27(11).
MLA	Kang, Bo,et al."Biocementation of Pyrite Tailings Using Microbially Induced Calcite Carbonate Precipitation".MOLECULES 27.11(2022).

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