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Hokkaido University Collection of Scholarly and Academic Papers >
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Biosorption of Pb (II) and Zn (II) from aqueous solution by Oceanobacillus profundus isolated from an abandoned mine
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| Title: | Biosorption of Pb (II) and Zn (II) from aqueous solution by Oceanobacillus profundus isolated from an abandoned mine |
| Authors: | Mwandira, Wilson Browse this author | | Nakashima, Kazunori Browse this author | | Kawasaki, Satoru Browse this author →KAKEN DB | | Arabelo, Allison Browse this author | | Banda, Kawawa Browse this author | | Nyambe, Imasiku Browse this author | | Chirwa, Meki Browse this author | | Ito, Mayumi Browse this author →KAKEN DB | | Sato, Tsutomu Browse this author →KAKEN DB | | Igarashi, Toshifumi Browse this author →KAKEN DB | | Nakata, Hokuto Browse this author →KAKEN DB | | Nakayama, Shouta Browse this author →KAKEN DB | | Ishizuka, Mayumi Browse this author →KAKEN DB |
| Issue Date: | 3-Dec-2020 |
| Publisher: | Nature Research |
| Journal Title: | Scientific reports |
| Volume: | 10 |
| Issue: | 1 |
| Start Page: | 21189 |
| Publisher DOI: | 10.1038/s41598-020-78187-4 |
| Abstract: | The present study investigated biosorption of Pb (II) and Zn (II) using a heavy metal tolerant bacterium Oceanobacillus profundus KBZ 3-2 isolated from a contaminated site. The effects of process parameters such as effect on bacterial growth, pH and initial lead ion concentration were studied. The results showed that the maximum removal percentage for Pb (II) was 97% at an initial concentration of 50 mg/L whereas maximum removal percentage for Zn (II) was at 54% at an initial concentration of 2 mg/L obtained at pH 6 and 30 degrees C. The isolated bacteria were found to sequester both Pb (II) and Zn (II) in the extracellular polymeric substance (EPS). The EPS facilitates ion exchange and metal chelation-complexation by virtue of the existence of ionizable functional groups such as carboxyl, sulfate, and phosphate present in the protein and polysaccharides. Therefore, the use of indigenous bacteria in the remediation of contaminated water is an eco-friendly way of solving anthropogenic contamination. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/80630 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐藤 努
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