Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms
Mixed mesophilic and extreme thermophilic bioleaching were evaluated to remove copper from the molybdenite concentrate. Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor. The shake flask tests were performed with different inoculum size, solids density, pH, and temperature...
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| Veröffentlicht in: | International journal of mining science and technology 2013-11, Vol.23 (6), p.827-834 |
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| container_title | International journal of mining science and technology |
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| creator | Abdollahi, Hadi Manafi, Zahra Shafaei Sied, Ziaedin Noaparast, Mohammad Manafi Moorkani, Navid |
| description | Mixed mesophilic and extreme thermophilic bioleaching were evaluated to remove copper from the molybdenite concentrate. Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor. The shake flask tests were performed with different inoculum size, solids density, pH, and temperature in order to identify optimum conditions. The highest amount of copper elimination, 75% was obtained with extreme thermophilic microorganisms (at 12%inoculation, 10%solids, 65 oC and a pH of 1.5). The highest copper elimination by mesophilic microorganisms was 55% (at 12% inoculation, 5% solids, 30 oC at pH 2). The optimum conditions in shake flask tests were applied to 7 days batch tests in a 50-L bioreactor. Extreme thermophilic experiment gave the best copper elimination of 60% (at 12%inoculation, 10%solids, 65 oC and pH 1.5). Mesophilic test removed 50%of the copper (at 12%inoculation, 10%solids, 35 oC at pH 2). |
| doi_str_mv | 10.1016/j.ijmst.2013.10.008 |
| format | Article |
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Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor. The shake flask tests were performed with different inoculum size, solids density, pH, and temperature in order to identify optimum conditions. The highest amount of copper elimination, 75% was obtained with extreme thermophilic microorganisms (at 12%inoculation, 10%solids, 65 oC and a pH of 1.5). The highest copper elimination by mesophilic microorganisms was 55% (at 12% inoculation, 5% solids, 30 oC at pH 2). The optimum conditions in shake flask tests were applied to 7 days batch tests in a 50-L bioreactor. Extreme thermophilic experiment gave the best copper elimination of 60% (at 12%inoculation, 10%solids, 65 oC and pH 1.5). Mesophilic test removed 50%of the copper (at 12%inoculation, 10%solids, 35 oC at pH 2).</description><identifier>ISSN: 2095-2686</identifier><identifier>DOI: 10.1016/j.ijmst.2013.10.008</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Bioleaching ; Bioreactors ; Copper ; Copper removal ; Density ; Flasks ; Inoculation ; Mesophilic and extreme thermophilic microorganisms ; Microorganisms ; Molybdenite concentrate ; Optimization</subject><ispartof>International journal of mining science and technology, 2013-11, Vol.23 (6), p.827-834</ispartof><rights>2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c397t-7716e7a471a1f25e2b1ffeaac102a9b3f3637c043b7360bbf354dc054b5550383</citedby><cites>FETCH-LOGICAL-c397t-7716e7a471a1f25e2b1ffeaac102a9b3f3637c043b7360bbf354dc054b5550383</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85399B/85399B.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijmst.2013.10.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Abdollahi, Hadi</creatorcontrib><creatorcontrib>Manafi, Zahra</creatorcontrib><creatorcontrib>Shafaei Sied, Ziaedin</creatorcontrib><creatorcontrib>Noaparast, Mohammad</creatorcontrib><creatorcontrib>Manafi Moorkani, Navid</creatorcontrib><title>Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms</title><title>International journal of mining science and technology</title><addtitle>International Journal of Mining Science and Technology</addtitle><description>Mixed mesophilic and extreme thermophilic bioleaching were evaluated to remove copper from the molybdenite concentrate. Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor. The shake flask tests were performed with different inoculum size, solids density, pH, and temperature in order to identify optimum conditions. The highest amount of copper elimination, 75% was obtained with extreme thermophilic microorganisms (at 12%inoculation, 10%solids, 65 oC and a pH of 1.5). The highest copper elimination by mesophilic microorganisms was 55% (at 12% inoculation, 5% solids, 30 oC at pH 2). The optimum conditions in shake flask tests were applied to 7 days batch tests in a 50-L bioreactor. Extreme thermophilic experiment gave the best copper elimination of 60% (at 12%inoculation, 10%solids, 65 oC and pH 1.5). Mesophilic test removed 50%of the copper (at 12%inoculation, 10%solids, 35 oC at pH 2).</description><subject>Bioleaching</subject><subject>Bioreactors</subject><subject>Copper</subject><subject>Copper removal</subject><subject>Density</subject><subject>Flasks</subject><subject>Inoculation</subject><subject>Mesophilic and extreme thermophilic microorganisms</subject><subject>Microorganisms</subject><subject>Molybdenite concentrate</subject><subject>Optimization</subject><issn>2095-2686</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkE9LAzEQxfegYKl-Ai8LXry0TpJNsj14EPEfCILoOWSzkzZls1mTVey3N7UVvOlcMry8N8P8iuKUwJwAERfruVv7NM4pEJaVOUB9UEwoLPiMilocFScprSGXqKua00nRPqMPH7orgy1NGAaMpY3Blz50m6bF3o2Y9d5gP0ad-2ZTekxhWLnOmVL3bYmfY0SP5bjC6H8-vDMxhLjUvUs-HReHVncJT_bvtHi9vXm5vp89Pt09XF89zgxbyHEmJREodSWJJpZypA2xFrU2BKheNMwywaSBijWSCWgay3jVGuBVwzkHVrNpcb6bO8Tw9o5pVN4lg12newzvSREJBGoi6n9YOctAK2AyW9nOmk9KKaJVQ3Rex40ioLbU1Vp9U1db6lsxU8-py10K88EfDqNKxmEG2bqIZlRtcH_kz_ZbV6Ffvrl--WstUEKEoIR9AfX_mvA</recordid><startdate>20131101</startdate><enddate>20131101</enddate><creator>Abdollahi, Hadi</creator><creator>Manafi, Zahra</creator><creator>Shafaei Sied, Ziaedin</creator><creator>Noaparast, Mohammad</creator><creator>Manafi Moorkani, Navid</creator><general>Elsevier B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>7TB</scope><scope>8BQ</scope><scope>JG9</scope></search><sort><creationdate>20131101</creationdate><title>Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms</title><author>Abdollahi, Hadi ; Manafi, Zahra ; Shafaei Sied, Ziaedin ; Noaparast, Mohammad ; Manafi Moorkani, Navid</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c397t-7716e7a471a1f25e2b1ffeaac102a9b3f3637c043b7360bbf354dc054b5550383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Bioleaching</topic><topic>Bioreactors</topic><topic>Copper</topic><topic>Copper removal</topic><topic>Density</topic><topic>Flasks</topic><topic>Inoculation</topic><topic>Mesophilic and extreme thermophilic microorganisms</topic><topic>Microorganisms</topic><topic>Molybdenite concentrate</topic><topic>Optimization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abdollahi, Hadi</creatorcontrib><creatorcontrib>Manafi, Zahra</creatorcontrib><creatorcontrib>Shafaei Sied, Ziaedin</creatorcontrib><creatorcontrib>Noaparast, Mohammad</creatorcontrib><creatorcontrib>Manafi Moorkani, Navid</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Materials Research Database</collection><jtitle>International journal of mining science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abdollahi, Hadi</au><au>Manafi, Zahra</au><au>Shafaei Sied, Ziaedin</au><au>Noaparast, Mohammad</au><au>Manafi Moorkani, Navid</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms</atitle><jtitle>International journal of mining science and technology</jtitle><addtitle>International Journal of Mining Science and Technology</addtitle><date>2013-11-01</date><risdate>2013</risdate><volume>23</volume><issue>6</issue><spage>827</spage><epage>834</epage><pages>827-834</pages><issn>2095-2686</issn><abstract>Mixed mesophilic and extreme thermophilic bioleaching were evaluated to remove copper from the molybdenite concentrate. Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor. The shake flask tests were performed with different inoculum size, solids density, pH, and temperature in order to identify optimum conditions. The highest amount of copper elimination, 75% was obtained with extreme thermophilic microorganisms (at 12%inoculation, 10%solids, 65 oC and a pH of 1.5). The highest copper elimination by mesophilic microorganisms was 55% (at 12% inoculation, 5% solids, 30 oC at pH 2). The optimum conditions in shake flask tests were applied to 7 days batch tests in a 50-L bioreactor. Extreme thermophilic experiment gave the best copper elimination of 60% (at 12%inoculation, 10%solids, 65 oC and pH 1.5). Mesophilic test removed 50%of the copper (at 12%inoculation, 10%solids, 35 oC at pH 2).</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.ijmst.2013.10.008</doi><tpages>8</tpages></addata></record> |
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| ispartof | International journal of mining science and technology, 2013-11, Vol.23 (6), p.827-834 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present); Alma/SFX Local Collection |
| subjects | Bioleaching Bioreactors Copper Copper removal Density Flasks Inoculation Mesophilic and extreme thermophilic microorganisms Microorganisms Molybdenite concentrate Optimization |
| title | Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms |
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