Colonization of Penicillium oxalicum enhanced neutralization effects of microbial decomposition of organic matter in bauxite residue
Bauxite residue is a highly alkaline waste product from refining bauxite ore. Bioremediation driven by microbial activities has been evidently effective in lowering the alkalinity of bauxite residues, which is critical to the initiation of pedogenesis under engineered conditions. The present study i...
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| Veröffentlicht in: | Journal of Central South University 2019-02, Vol.26 (2), p.331-342 |
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| container_title | Journal of Central South University |
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| creator | Liao, Jia-xin Zhang, Yi-fan Cheng, Qing-yu Wu, Hao Zhu, Feng Xue, Sheng-guo |
| description | Bauxite residue is a highly alkaline waste product from refining bauxite ore. Bioremediation driven by microbial activities has been evidently effective in lowering the alkalinity of bauxite residues, which is critical to the initiation of pedogenesis under engineered conditions. The present study investigated the changes of alkalinity and aggregation of bauxite residue at different depth in response to the colonization of
Penicillium oxalicum
in columns. The results demonstrated that the inoculation of
P. oxalicum
decreased the residue’s pH to about 7 after 30 d only at the surface layer, which was exposed to aerobic conditions. The formation of aggregates was improved overall in the organic matter treated bauxite residue. However, the EC of bauxite residue increased with time under the incubation condition, probably due to accelerated hydrolysis of sodium-rich minerals. The inoculation of
P. oxalicum
had no effects on urease activity, but increased cellulose enzyme activity at surface layer only. |
| doi_str_mv | 10.1007/s11771-019-4005-y |
| format | Article |
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Penicillium oxalicum
in columns. The results demonstrated that the inoculation of
P. oxalicum
decreased the residue’s pH to about 7 after 30 d only at the surface layer, which was exposed to aerobic conditions. The formation of aggregates was improved overall in the organic matter treated bauxite residue. However, the EC of bauxite residue increased with time under the incubation condition, probably due to accelerated hydrolysis of sodium-rich minerals. The inoculation of
P. oxalicum
had no effects on urease activity, but increased cellulose enzyme activity at surface layer only.</description><identifier>ISSN: 2095-2899</identifier><identifier>EISSN: 2227-5223</identifier><identifier>DOI: 10.1007/s11771-019-4005-y</identifier><language>eng</language><publisher>Changsha: Central South University</publisher><subject>Alkalinity ; Bauxite ; Bayer process ; Bioremediation ; Engineering ; Enzyme activity ; Fungi ; Inoculation ; Metallic Materials ; Microorganisms ; Organic matter ; Surface layers</subject><ispartof>Journal of Central South University, 2019-02, Vol.26 (2), p.331-342</ispartof><rights>Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><rights>Copyright Springer Nature B.V. 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-94a78666a63950ceff690782346b8164f0e656ef8af367efb31b8ebc5aab3d633</citedby><cites>FETCH-LOGICAL-c353t-94a78666a63950ceff690782346b8164f0e656ef8af367efb31b8ebc5aab3d633</cites><orcidid>0000-0002-4163-9383</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11771-019-4005-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11771-019-4005-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Liao, Jia-xin</creatorcontrib><creatorcontrib>Zhang, Yi-fan</creatorcontrib><creatorcontrib>Cheng, Qing-yu</creatorcontrib><creatorcontrib>Wu, Hao</creatorcontrib><creatorcontrib>Zhu, Feng</creatorcontrib><creatorcontrib>Xue, Sheng-guo</creatorcontrib><title>Colonization of Penicillium oxalicum enhanced neutralization effects of microbial decomposition of organic matter in bauxite residue</title><title>Journal of Central South University</title><addtitle>J. Cent. South Univ</addtitle><description>Bauxite residue is a highly alkaline waste product from refining bauxite ore. Bioremediation driven by microbial activities has been evidently effective in lowering the alkalinity of bauxite residues, which is critical to the initiation of pedogenesis under engineered conditions. The present study investigated the changes of alkalinity and aggregation of bauxite residue at different depth in response to the colonization of
Penicillium oxalicum
in columns. The results demonstrated that the inoculation of
P. oxalicum
decreased the residue’s pH to about 7 after 30 d only at the surface layer, which was exposed to aerobic conditions. The formation of aggregates was improved overall in the organic matter treated bauxite residue. However, the EC of bauxite residue increased with time under the incubation condition, probably due to accelerated hydrolysis of sodium-rich minerals. The inoculation of
P. oxalicum
had no effects on urease activity, but increased cellulose enzyme activity at surface layer only.</description><subject>Alkalinity</subject><subject>Bauxite</subject><subject>Bayer process</subject><subject>Bioremediation</subject><subject>Engineering</subject><subject>Enzyme activity</subject><subject>Fungi</subject><subject>Inoculation</subject><subject>Metallic Materials</subject><subject>Microorganisms</subject><subject>Organic matter</subject><subject>Surface layers</subject><issn>2095-2899</issn><issn>2227-5223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kEtLAzEUhYMoWGp_gLuA69E8ZpKZpRRfUNCFrkMmc1MjM0lNZqB17Q83pRVXru7lcs53uAehS0quKSHyJlEqJS0IbYqSkKrYnaAZY0wWFWP8NO-kqQpWN805WqTkWsIpE1w0Yoa-l6EP3n3p0QWPg8Uv4J1xfe-mAYet7p3JC_h37Q102MM0xnw86sFaMGPa-wZnYmid7nEHJgybkNwvMsS1zlA86HGEiJ3HrZ62bgQcIbluggt0ZnWfYHGcc_R2f_e6fCxWzw9Py9tVYXjFx6IptayFEFrwpiImh4uGyJrxUrQ1FaUlICoBttaWCwm25bStoTWV1i3vBOdzdHXgbmL4nCCN6iNM0edIxWgtpJRlDpojelDlh1KKYNUmukHHnaJE7ftWh75V7lvt-1a77GEHT8pav4b4R_7f9APipYbq</recordid><startdate>20190201</startdate><enddate>20190201</enddate><creator>Liao, Jia-xin</creator><creator>Zhang, Yi-fan</creator><creator>Cheng, Qing-yu</creator><creator>Wu, Hao</creator><creator>Zhu, Feng</creator><creator>Xue, Sheng-guo</creator><general>Central South University</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-4163-9383</orcidid></search><sort><creationdate>20190201</creationdate><title>Colonization of Penicillium oxalicum enhanced neutralization effects of microbial decomposition of organic matter in bauxite residue</title><author>Liao, Jia-xin ; Zhang, Yi-fan ; Cheng, Qing-yu ; Wu, Hao ; Zhu, Feng ; Xue, Sheng-guo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-94a78666a63950ceff690782346b8164f0e656ef8af367efb31b8ebc5aab3d633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Alkalinity</topic><topic>Bauxite</topic><topic>Bayer process</topic><topic>Bioremediation</topic><topic>Engineering</topic><topic>Enzyme activity</topic><topic>Fungi</topic><topic>Inoculation</topic><topic>Metallic Materials</topic><topic>Microorganisms</topic><topic>Organic matter</topic><topic>Surface layers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liao, Jia-xin</creatorcontrib><creatorcontrib>Zhang, Yi-fan</creatorcontrib><creatorcontrib>Cheng, Qing-yu</creatorcontrib><creatorcontrib>Wu, Hao</creatorcontrib><creatorcontrib>Zhu, Feng</creatorcontrib><creatorcontrib>Xue, Sheng-guo</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of Central South University</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liao, Jia-xin</au><au>Zhang, Yi-fan</au><au>Cheng, Qing-yu</au><au>Wu, Hao</au><au>Zhu, Feng</au><au>Xue, Sheng-guo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Colonization of Penicillium oxalicum enhanced neutralization effects of microbial decomposition of organic matter in bauxite residue</atitle><jtitle>Journal of Central South University</jtitle><stitle>J. Cent. South Univ</stitle><date>2019-02-01</date><risdate>2019</risdate><volume>26</volume><issue>2</issue><spage>331</spage><epage>342</epage><pages>331-342</pages><issn>2095-2899</issn><eissn>2227-5223</eissn><abstract>Bauxite residue is a highly alkaline waste product from refining bauxite ore. Bioremediation driven by microbial activities has been evidently effective in lowering the alkalinity of bauxite residues, which is critical to the initiation of pedogenesis under engineered conditions. The present study investigated the changes of alkalinity and aggregation of bauxite residue at different depth in response to the colonization of
Penicillium oxalicum
in columns. The results demonstrated that the inoculation of
P. oxalicum
decreased the residue’s pH to about 7 after 30 d only at the surface layer, which was exposed to aerobic conditions. The formation of aggregates was improved overall in the organic matter treated bauxite residue. However, the EC of bauxite residue increased with time under the incubation condition, probably due to accelerated hydrolysis of sodium-rich minerals. The inoculation of
P. oxalicum
had no effects on urease activity, but increased cellulose enzyme activity at surface layer only.</abstract><cop>Changsha</cop><pub>Central South University</pub><doi>10.1007/s11771-019-4005-y</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-4163-9383</orcidid></addata></record> |
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| language | eng |
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| source | Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings |
| subjects | Alkalinity Bauxite Bayer process Bioremediation Engineering Enzyme activity Fungi Inoculation Metallic Materials Microorganisms Organic matter Surface layers |
| title | Colonization of Penicillium oxalicum enhanced neutralization effects of microbial decomposition of organic matter in bauxite residue |
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