A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution
Abstract In polluted groundwater, surface water, and industrial sites, chromium is found as one of the most common heavy metals, and one of the 20 main pollutants in China, which poses a great threat to the ecological environment and human health. Combining biological and chemical materials to treat...
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Nature Portfolio
2021
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oai:doaj.org-article:1057666093af407d9aaed1e3e423f14f2021-12-02T13:24:15ZA high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution10.1038/s41598-021-85975-z2045-2322https://doaj.org/article/1057666093af407d9aaed1e3e423f14f2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85975-zhttps://doaj.org/toc/2045-2322Abstract In polluted groundwater, surface water, and industrial sites, chromium is found as one of the most common heavy metals, and one of the 20 main pollutants in China, which poses a great threat to the ecological environment and human health. Combining biological and chemical materials to treat groundwater contaminated by heavy metals is a promising restoration technology. In this research, Klebsiella variicola H12 (abbreviated as K. variicola) was found to have Cr(VI) reduction ability. A high-efficiency Klebsiella variicola H12-carboxymethyl cellulose (abbreviated as CMC)-FeS@biochar system was established for Cr(VI) removal from aqueous solution. The Scanning Electron Microscope-Energy Dispersive Spectrometer (SEM–EDS), X-ray photoelectron spectroscopy (XPS) results indicated that CMC-FeS was successfully loaded onto the surface of biochar, and K. variicola H12 grew well in the presence of CMC-FeS@biochar with microbial biomass up to 4.8 × 108 cells mL−1. Cr(VI) removal rate of CMC-FeS@biochar system, K. variicola H12 system and K. variicola H12 + CMC-FeS@biochar system were 61.8%, 82.2% and 96.6% respectively. This study demonstrated K. variicola H12-CMC-FeS@biochar system have potential value for efficient removal of Cr(VI) from Cr(VI)-polluted groundwater.Runlan YuMeilian ManZhaojing YuXueling WuLi ShenYuandong LiuJiaokun LiMingchen XiaWeimin ZengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021) |
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Medicine R Science Q Runlan Yu Meilian Man Zhaojing Yu Xueling Wu Li Shen Yuandong Liu Jiaokun Li Mingchen Xia Weimin Zeng A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| description |
Abstract In polluted groundwater, surface water, and industrial sites, chromium is found as one of the most common heavy metals, and one of the 20 main pollutants in China, which poses a great threat to the ecological environment and human health. Combining biological and chemical materials to treat groundwater contaminated by heavy metals is a promising restoration technology. In this research, Klebsiella variicola H12 (abbreviated as K. variicola) was found to have Cr(VI) reduction ability. A high-efficiency Klebsiella variicola H12-carboxymethyl cellulose (abbreviated as CMC)-FeS@biochar system was established for Cr(VI) removal from aqueous solution. The Scanning Electron Microscope-Energy Dispersive Spectrometer (SEM–EDS), X-ray photoelectron spectroscopy (XPS) results indicated that CMC-FeS was successfully loaded onto the surface of biochar, and K. variicola H12 grew well in the presence of CMC-FeS@biochar with microbial biomass up to 4.8 × 108 cells mL−1. Cr(VI) removal rate of CMC-FeS@biochar system, K. variicola H12 system and K. variicola H12 + CMC-FeS@biochar system were 61.8%, 82.2% and 96.6% respectively. This study demonstrated K. variicola H12-CMC-FeS@biochar system have potential value for efficient removal of Cr(VI) from Cr(VI)-polluted groundwater. |
| format |
article |
| author |
Runlan Yu Meilian Man Zhaojing Yu Xueling Wu Li Shen Yuandong Liu Jiaokun Li Mingchen Xia Weimin Zeng |
| author_facet |
Runlan Yu Meilian Man Zhaojing Yu Xueling Wu Li Shen Yuandong Liu Jiaokun Li Mingchen Xia Weimin Zeng |
| author_sort |
Runlan Yu |
| title |
A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| title_short |
A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| title_full |
A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| title_fullStr |
A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| title_full_unstemmed |
A high-efficiency Klebsiella variicola H12-CMC-FeS@biochar for chromium removal from aqueous solution |
| title_sort |
high-efficiency klebsiella variicola h12-cmc-fes@biochar for chromium removal from aqueous solution |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/1057666093af407d9aaed1e3e423f14f |
| work_keys_str_mv |
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