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Suppression of coal dust by microbially induced carbonate precipitation usingStaphylococcus succinus

文献类型：期刊论文

作者Song, Wenjuan1,2; Yang, Yuyi1,3; Qi, Ran4; Li, Junpeng5; Pan, Xiangliang2,6
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2019-11-10
页码10
关键词coal dust Staphylococcus succinus Microbially induced carbonate precipitation (MICP) Threshold broken wind speed Threshold broken pressure Suppression
ISSN号0944-1344
DOI10.1007/s11356-019-06488-x
英文摘要Coal dust from open-cast mines is a significant air pollutant; thus, dust particles and toxins contained in the dust are a severe threat to human health and ecosystems. Microbially induced carbonate precipitation (MICP) is a low-cost and environmentally friendly way to suppress coal dust. With high urease activity and tolerance to coal dust, a bacterial strain, Staphylococcus succinus J3, was isolated from soil in a mine area. Thus, in dust suppression experiments, we used coal dust dominated by fine granule particles (100-250 mu m) from an open-cast mine. Consequently, four factors were identified: initial bacterial biomass, calcium concentration, urea concentration, and spraying frequency; we investigated their effects on MICP as a dust suppression technique using one-factor-at-a-time experiments. Maximum threshold broken wind speed (45.5 m s(-1)) and pressure (912 kPa) were obtained under the following condition: OD600 = 0.7, 40 mmol calcium, 6% (w/w) urea in the bonding solution which was sprayed five times in 35 days. Pearson correlation analysis described that urea concentration and spraying frequency both significantly positive correlations with the threshold broken wind speed and pressure via Pearson analysis. When the coal dust suppression process was complete, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy showed that a solidified layer of calcareous precipitate had formed on the surface of the dust. These results indicate that Staphylococcus succinus J3 has considerable potential for use in MICP as a coal dust suppression technique.
资助项目Key Research and Development Plan of XinJiang Uygur Autonomous Region[2016B03042-2] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017478]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000495404700005
出版者SPRINGER HEIDELBERG
源URL[http://202.127.146.157/handle/2RYDP1HH/14798]  
专题中国科学院武汉植物园
通讯作者Song, Wenjuan; Pan, Xiangliang
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China
4.Chinese Peoples Armed Police Golden Eighth Detach, Urumqi 830026, Peoples R China
5.Shihezi Univ, Sch Life Sci, Shihezi 832002, Peoples R China
6.Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Song, Wenjuan,Yang, Yuyi,Qi, Ran,et al. Suppression of coal dust by microbially induced carbonate precipitation usingStaphylococcus succinus[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019:10.
APA Song, Wenjuan,Yang, Yuyi,Qi, Ran,Li, Junpeng,&Pan, Xiangliang.(2019).Suppression of coal dust by microbially induced carbonate precipitation usingStaphylococcus succinus.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,10.
MLA Song, Wenjuan,et al."Suppression of coal dust by microbially induced carbonate precipitation usingStaphylococcus succinus".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2019):10.

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来源：武汉植物园

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