On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores
In this study, we have investigated the bioleaching potential of a native strain of Acidithiobacillus ferrooxidans isolated from zinc and lead sulfide mines under varied ambient conditions of growth and substrate consumption. The effects of intermittent irrigation, type of agglomeration, feed formul...
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| Veröffentlicht in: | Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2012-04, Vol.187, p.217-221 |
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| container_title | Chemical engineering journal (Lausanne, Switzerland : 1996) |
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| creator | Saririchi, Taghiyeh Azad, Reza Roosta Arabian, Daryush Molaie, Asghar Nemati, Fahimeh |
| description | In this study, we have investigated the bioleaching potential of a native strain of Acidithiobacillus ferrooxidans isolated from zinc and lead sulfide mines under varied ambient conditions of growth and substrate consumption. The effects of intermittent irrigation, type of agglomeration, feed formulation in terms of acid, enriched salt solution, initial number of microorganism, and their interactions on the bioleaching of low-grade zinc sulfide ores (containing 5.78% zinc) on growth and biooxidation efficiency of the bacteria have been evaluated. Bioleaching capacities of the isolate were optimized by the utilization the Taguchi method (e-qualitic-4) for design of experiments. As a result, eight column bioreactors with 5.7kg ore (100% |
| doi_str_mv | 10.1016/j.cej.2010.10.013 |
| format | Article |
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The effects of intermittent irrigation, type of agglomeration, feed formulation in terms of acid, enriched salt solution, initial number of microorganism, and their interactions on the bioleaching of low-grade zinc sulfide ores (containing 5.78% zinc) on growth and biooxidation efficiency of the bacteria have been evaluated. Bioleaching capacities of the isolate were optimized by the utilization the Taguchi method (e-qualitic-4) for design of experiments. As a result, eight column bioreactors with 5.7kg ore (100% <12mm) capacity were fabricated. Through the analysis, continuous inoculation of the ores with the solution of A. ferrooxidans type and spraying a bacterial-rich solution into the agglomerator were found to be the most significant factors, whereas intermittent irrigation and interactions of parameters have less effect within the ranges investigated. The extraction of zinc was obtained under the optimal conditions more than 70% in 80 days, which is noticeable to compare with conventional bioleaching.</description><identifier>ISSN: 1385-8947</identifier><identifier>EISSN: 1873-3212</identifier><identifier>DOI: 10.1016/j.cej.2010.10.013</identifier><language>eng</language><publisher>Oxford: Elsevier B.V</publisher><subject>Acidithiobacillus ferrooxidans ; Applied sciences ; bacteria ; Bioleaching ; Biological and medical sciences ; bioreactors ; Biotechnology ; Chemical engineering ; Exact sciences and technology ; experimental design ; feed formulation ; Fundamental and applied biological sciences. Psychology ; lead ; Low-grade ores ; Methods. Procedures. Technologies ; Others ; Reactors ; Sintering, pelletization, granulation ; Solid-solid systems ; spraying ; Sulfide ; surge irrigation ; Taguchi method ; Various methods and equipments ; Zinc</subject><ispartof>Chemical engineering journal (Lausanne, Switzerland : 1996), 2012-04, Vol.187, p.217-221</ispartof><rights>2012</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-fdeff79d74f7d2f6be1ca38629895ee2e3501112fd7453b10fcffe0968ecad463</citedby><cites>FETCH-LOGICAL-c383t-fdeff79d74f7d2f6be1ca38629895ee2e3501112fd7453b10fcffe0968ecad463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.cej.2010.10.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25785187$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Saririchi, Taghiyeh</creatorcontrib><creatorcontrib>Azad, Reza Roosta</creatorcontrib><creatorcontrib>Arabian, Daryush</creatorcontrib><creatorcontrib>Molaie, Asghar</creatorcontrib><creatorcontrib>Nemati, Fahimeh</creatorcontrib><title>On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores</title><title>Chemical engineering journal (Lausanne, Switzerland : 1996)</title><description>In this study, we have investigated the bioleaching potential of a native strain of Acidithiobacillus ferrooxidans isolated from zinc and lead sulfide mines under varied ambient conditions of growth and substrate consumption. The effects of intermittent irrigation, type of agglomeration, feed formulation in terms of acid, enriched salt solution, initial number of microorganism, and their interactions on the bioleaching of low-grade zinc sulfide ores (containing 5.78% zinc) on growth and biooxidation efficiency of the bacteria have been evaluated. Bioleaching capacities of the isolate were optimized by the utilization the Taguchi method (e-qualitic-4) for design of experiments. As a result, eight column bioreactors with 5.7kg ore (100% <12mm) capacity were fabricated. Through the analysis, continuous inoculation of the ores with the solution of A. ferrooxidans type and spraying a bacterial-rich solution into the agglomerator were found to be the most significant factors, whereas intermittent irrigation and interactions of parameters have less effect within the ranges investigated. The extraction of zinc was obtained under the optimal conditions more than 70% in 80 days, which is noticeable to compare with conventional bioleaching.</description><subject>Acidithiobacillus ferrooxidans</subject><subject>Applied sciences</subject><subject>bacteria</subject><subject>Bioleaching</subject><subject>Biological and medical sciences</subject><subject>bioreactors</subject><subject>Biotechnology</subject><subject>Chemical engineering</subject><subject>Exact sciences and technology</subject><subject>experimental design</subject><subject>feed formulation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>lead</subject><subject>Low-grade ores</subject><subject>Methods. Procedures. Technologies</subject><subject>Others</subject><subject>Reactors</subject><subject>Sintering, pelletization, granulation</subject><subject>Solid-solid systems</subject><subject>spraying</subject><subject>Sulfide</subject><subject>surge irrigation</subject><subject>Taguchi method</subject><subject>Various methods and equipments</subject><subject>Zinc</subject><issn>1385-8947</issn><issn>1873-3212</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kU1v1DAQhiMEEmXhB3DCF8Sl2drxOh_qCVXlQ6rUQ9uz5XXG2Vk5drC9oPYn8qtwNgvi1JPt0TPPjPwWxXtG14yy-mK_1rBfV_T4XlPGXxRnrG14yStWvcx33oqy7TbN6-JNjHtKad2x7qz4fetI2gHxU8IRn1RC74g3JE47ZSFgArJFb0HpHbrh8siiixPovyS6BGHElMAlgiHgcJSck_Q4wQyoYbB-hHAqG4CeGB_Gg12mKdfPWgyLSh3Nkfhlsf-mzzLrf5VDUD2QJ3SaxIM1mB8-QHxbvDLKRnh3OlfFw5fr-6tv5c3t1-9Xn29KzVueStODMU3XNxvT9JWpt8C04m1ddW0nACrggjLGKpMJwbeMGm0M0K5uQat-U_NV8WnxTsH_OEBMcsSowVrlwB-izCRrGOtEJtlC6uBjDGDkFHBU4VEyKufY5F7m2OQc21zKseWejye7ilpZE5TTGP81VqJpxRzsqviwcEZ5qYaQmYe7LBI0ywTl856XCwH5M34iBBk1gtPQY8jxyd7jM3v8ATGQvKM</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>Saririchi, Taghiyeh</creator><creator>Azad, Reza Roosta</creator><creator>Arabian, Daryush</creator><creator>Molaie, Asghar</creator><creator>Nemati, Fahimeh</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20120401</creationdate><title>On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores</title><author>Saririchi, Taghiyeh ; Azad, Reza Roosta ; Arabian, Daryush ; Molaie, Asghar ; Nemati, Fahimeh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-fdeff79d74f7d2f6be1ca38629895ee2e3501112fd7453b10fcffe0968ecad463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Acidithiobacillus ferrooxidans</topic><topic>Applied sciences</topic><topic>bacteria</topic><topic>Bioleaching</topic><topic>Biological and medical sciences</topic><topic>bioreactors</topic><topic>Biotechnology</topic><topic>Chemical engineering</topic><topic>Exact sciences and technology</topic><topic>experimental design</topic><topic>feed formulation</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>lead</topic><topic>Low-grade ores</topic><topic>Methods. Procedures. Technologies</topic><topic>Others</topic><topic>Reactors</topic><topic>Sintering, pelletization, granulation</topic><topic>Solid-solid systems</topic><topic>spraying</topic><topic>Sulfide</topic><topic>surge irrigation</topic><topic>Taguchi method</topic><topic>Various methods and equipments</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Saririchi, Taghiyeh</creatorcontrib><creatorcontrib>Azad, Reza Roosta</creatorcontrib><creatorcontrib>Arabian, Daryush</creatorcontrib><creatorcontrib>Molaie, Asghar</creatorcontrib><creatorcontrib>Nemati, Fahimeh</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Chemical engineering journal (Lausanne, Switzerland : 1996)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Saririchi, Taghiyeh</au><au>Azad, Reza Roosta</au><au>Arabian, Daryush</au><au>Molaie, Asghar</au><au>Nemati, Fahimeh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores</atitle><jtitle>Chemical engineering journal (Lausanne, Switzerland : 1996)</jtitle><date>2012-04-01</date><risdate>2012</risdate><volume>187</volume><spage>217</spage><epage>221</epage><pages>217-221</pages><issn>1385-8947</issn><eissn>1873-3212</eissn><abstract>In this study, we have investigated the bioleaching potential of a native strain of Acidithiobacillus ferrooxidans isolated from zinc and lead sulfide mines under varied ambient conditions of growth and substrate consumption. The effects of intermittent irrigation, type of agglomeration, feed formulation in terms of acid, enriched salt solution, initial number of microorganism, and their interactions on the bioleaching of low-grade zinc sulfide ores (containing 5.78% zinc) on growth and biooxidation efficiency of the bacteria have been evaluated. Bioleaching capacities of the isolate were optimized by the utilization the Taguchi method (e-qualitic-4) for design of experiments. As a result, eight column bioreactors with 5.7kg ore (100% <12mm) capacity were fabricated. Through the analysis, continuous inoculation of the ores with the solution of A. ferrooxidans type and spraying a bacterial-rich solution into the agglomerator were found to be the most significant factors, whereas intermittent irrigation and interactions of parameters have less effect within the ranges investigated. The extraction of zinc was obtained under the optimal conditions more than 70% in 80 days, which is noticeable to compare with conventional bioleaching.</abstract><cop>Oxford</cop><pub>Elsevier B.V</pub><doi>10.1016/j.cej.2010.10.013</doi><tpages>5</tpages></addata></record> |
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| subjects | Acidithiobacillus ferrooxidans Applied sciences bacteria Bioleaching Biological and medical sciences bioreactors Biotechnology Chemical engineering Exact sciences and technology experimental design feed formulation Fundamental and applied biological sciences. Psychology lead Low-grade ores Methods. Procedures. Technologies Others Reactors Sintering, pelletization, granulation Solid-solid systems spraying Sulfide surge irrigation Taguchi method Various methods and equipments Zinc |
| title | On the optimization of sphalerite bioleaching; the inspection of intermittent irrigation, type of agglomeration, feed formulation and their interactions on the bioleaching of low-grade zinc sulfide ores |
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