Influence of growth phase on harvesting of Chlorella zofingiensis by dissolved air flotation
[Display omitted] ► Changes in cell characteristics and culture medium properties were characterized. ► Influence of algal functional groups and organic matter on harvesting were revealed. ► Al3+ dosage – harvesting efficiency during growth phases was successfully modeled. The effects of changes in...
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| Veröffentlicht in: | Bioresource technology 2012-07, Vol.116, p.477-484 |
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| creator | Zhang, Xuezhi Amendola, Pasquale Hewson, John C. Sommerfeld, Milton Hu, Qiang |
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► Changes in cell characteristics and culture medium properties were characterized. ► Influence of algal functional groups and organic matter on harvesting were revealed. ► Al3+ dosage – harvesting efficiency during growth phases was successfully modeled.
The effects of changes in cellular characteristics and dissolved organic matter (DOM) on dissolved air flotation (DAF) harvesting of Chlorella zofingiensis at the different growth phases were studied. Harvesting efficiency increased with Al3+ dosage and reached more than 90%, regardless of growth phases. In the absence of DOM, the ratio of Al3+ dosage to surface functional group concentration determined the harvesting efficiency. DOM in the culture medium competed with algal cell surface functional groups for Al3+, and more Al3+ was required for cultures with DOM than for DOM-free cultures to achieve the same harvesting efficiency. As the culture aged, the increase of Al3+ dosage due to increased DOM was less than the decrease of Al3+ dosage associated with reduced cell surface functional groups, resulting in overall reduced demand for Al3+. The interdependency of Al3+ dosage and harvesting efficiency on concentrations of cell surface functional groups and DOM was successfully modeled. |
| doi_str_mv | 10.1016/j.biortech.2012.04.002 |
| format | Article |
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► Changes in cell characteristics and culture medium properties were characterized. ► Influence of algal functional groups and organic matter on harvesting were revealed. ► Al3+ dosage – harvesting efficiency during growth phases was successfully modeled.
The effects of changes in cellular characteristics and dissolved organic matter (DOM) on dissolved air flotation (DAF) harvesting of Chlorella zofingiensis at the different growth phases were studied. Harvesting efficiency increased with Al3+ dosage and reached more than 90%, regardless of growth phases. In the absence of DOM, the ratio of Al3+ dosage to surface functional group concentration determined the harvesting efficiency. DOM in the culture medium competed with algal cell surface functional groups for Al3+, and more Al3+ was required for cultures with DOM than for DOM-free cultures to achieve the same harvesting efficiency. As the culture aged, the increase of Al3+ dosage due to increased DOM was less than the decrease of Al3+ dosage associated with reduced cell surface functional groups, resulting in overall reduced demand for Al3+. The interdependency of Al3+ dosage and harvesting efficiency on concentrations of cell surface functional groups and DOM was successfully modeled.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2012.04.002</identifier><identifier>PMID: 22541950</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Air ; Algal harvesting ; Aluminum - pharmacology ; Biomass ; Cell Culture Techniques - methods ; Cell surface functional group ; Chlorella ; Chlorella - cytology ; Chlorella - drug effects ; Chlorella - growth & development ; Chlorella zofingiensis ; Coagulation ; culture media ; Culture Media - chemistry ; Dissolved organic matter ; Least-Squares Analysis ; Organic Chemicals - metabolism ; organic matter ; Solubility - drug effects</subject><ispartof>Bioresource technology, 2012-07, Vol.116, p.477-484</ispartof><rights>2012 Elsevier Ltd</rights><rights>Copyright © 2012 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c491t-4a24c65c891dffc939c84d0ad40056178003688ff0baee9433f5eaceca29efb63</citedby><cites>FETCH-LOGICAL-c491t-4a24c65c891dffc939c84d0ad40056178003688ff0baee9433f5eaceca29efb63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960852412005925$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22541950$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Xuezhi</creatorcontrib><creatorcontrib>Amendola, Pasquale</creatorcontrib><creatorcontrib>Hewson, John C.</creatorcontrib><creatorcontrib>Sommerfeld, Milton</creatorcontrib><creatorcontrib>Hu, Qiang</creatorcontrib><title>Influence of growth phase on harvesting of Chlorella zofingiensis by dissolved air flotation</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>[Display omitted]
► Changes in cell characteristics and culture medium properties were characterized. ► Influence of algal functional groups and organic matter on harvesting were revealed. ► Al3+ dosage – harvesting efficiency during growth phases was successfully modeled.
The effects of changes in cellular characteristics and dissolved organic matter (DOM) on dissolved air flotation (DAF) harvesting of Chlorella zofingiensis at the different growth phases were studied. Harvesting efficiency increased with Al3+ dosage and reached more than 90%, regardless of growth phases. In the absence of DOM, the ratio of Al3+ dosage to surface functional group concentration determined the harvesting efficiency. DOM in the culture medium competed with algal cell surface functional groups for Al3+, and more Al3+ was required for cultures with DOM than for DOM-free cultures to achieve the same harvesting efficiency. As the culture aged, the increase of Al3+ dosage due to increased DOM was less than the decrease of Al3+ dosage associated with reduced cell surface functional groups, resulting in overall reduced demand for Al3+. The interdependency of Al3+ dosage and harvesting efficiency on concentrations of cell surface functional groups and DOM was successfully modeled.</description><subject>Air</subject><subject>Algal harvesting</subject><subject>Aluminum - pharmacology</subject><subject>Biomass</subject><subject>Cell Culture Techniques - methods</subject><subject>Cell surface functional group</subject><subject>Chlorella</subject><subject>Chlorella - cytology</subject><subject>Chlorella - drug effects</subject><subject>Chlorella - growth & development</subject><subject>Chlorella zofingiensis</subject><subject>Coagulation</subject><subject>culture media</subject><subject>Culture Media - chemistry</subject><subject>Dissolved organic matter</subject><subject>Least-Squares Analysis</subject><subject>Organic Chemicals - metabolism</subject><subject>organic matter</subject><subject>Solubility - drug effects</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkUFv1DAQhS0EotuWv1By5JIwdhzHvoFWQCtV6qH0VslynPHGq2y82Nmtyq_H0bZc4WTZ883M83uEXFGoKFDxeVt1PsQZ7VAxoKwCXgGwN2RFZVuXTLXiLVmBElDKhvEzcp7SFgBq2rL35IyxhlPVwIo83kxuPOBksQiu2MTwNA_FfjAp36diMPGIafbTZqmuhzFEHEdT_A4uv3mckk9F91z0PqUwHrEvjI-FG8NsZh-mS_LOmTHhh5fzgjx8__ZzfV3e3v24WX-9LS1XdC65YdyKxkpFe-esqpWVvAfTc4BG0FZm3UJK56AziIrXtWvQWLSGKXSdqC_Ip9PcfQy_Dlmw3vlkF6UThkPSFGopgNZM_QdKpagbJXhGxQm1MaQU0el99DsTnzO0cEJv9WsIeglBA9c5hNx49bLj0O2w_9v26noGPp4AZ4I2m-iTfrjPE_J_qaSiaTPx5URgtu3oMepk_ZJS7yPaWffB_0vFH8cOpeA</recordid><startdate>20120701</startdate><enddate>20120701</enddate><creator>Zhang, Xuezhi</creator><creator>Amendola, Pasquale</creator><creator>Hewson, John C.</creator><creator>Sommerfeld, Milton</creator><creator>Hu, Qiang</creator><general>Elsevier Ltd</general><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QO</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20120701</creationdate><title>Influence of growth phase on harvesting of Chlorella zofingiensis by dissolved air flotation</title><author>Zhang, Xuezhi ; Amendola, Pasquale ; Hewson, John C. ; Sommerfeld, Milton ; Hu, Qiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c491t-4a24c65c891dffc939c84d0ad40056178003688ff0baee9433f5eaceca29efb63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Air</topic><topic>Algal harvesting</topic><topic>Aluminum - pharmacology</topic><topic>Biomass</topic><topic>Cell Culture Techniques - methods</topic><topic>Cell surface functional group</topic><topic>Chlorella</topic><topic>Chlorella - cytology</topic><topic>Chlorella - drug effects</topic><topic>Chlorella - growth & development</topic><topic>Chlorella zofingiensis</topic><topic>Coagulation</topic><topic>culture media</topic><topic>Culture Media - chemistry</topic><topic>Dissolved organic matter</topic><topic>Least-Squares Analysis</topic><topic>Organic Chemicals - metabolism</topic><topic>organic matter</topic><topic>Solubility - drug effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Xuezhi</creatorcontrib><creatorcontrib>Amendola, Pasquale</creatorcontrib><creatorcontrib>Hewson, John C.</creatorcontrib><creatorcontrib>Sommerfeld, Milton</creatorcontrib><creatorcontrib>Hu, Qiang</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</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>Environment Abstracts</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Xuezhi</au><au>Amendola, Pasquale</au><au>Hewson, John C.</au><au>Sommerfeld, Milton</au><au>Hu, Qiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of growth phase on harvesting of Chlorella zofingiensis by dissolved air flotation</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>116</volume><spage>477</spage><epage>484</epage><pages>477-484</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>[Display omitted]
► Changes in cell characteristics and culture medium properties were characterized. ► Influence of algal functional groups and organic matter on harvesting were revealed. ► Al3+ dosage – harvesting efficiency during growth phases was successfully modeled.
The effects of changes in cellular characteristics and dissolved organic matter (DOM) on dissolved air flotation (DAF) harvesting of Chlorella zofingiensis at the different growth phases were studied. Harvesting efficiency increased with Al3+ dosage and reached more than 90%, regardless of growth phases. In the absence of DOM, the ratio of Al3+ dosage to surface functional group concentration determined the harvesting efficiency. DOM in the culture medium competed with algal cell surface functional groups for Al3+, and more Al3+ was required for cultures with DOM than for DOM-free cultures to achieve the same harvesting efficiency. As the culture aged, the increase of Al3+ dosage due to increased DOM was less than the decrease of Al3+ dosage associated with reduced cell surface functional groups, resulting in overall reduced demand for Al3+. The interdependency of Al3+ dosage and harvesting efficiency on concentrations of cell surface functional groups and DOM was successfully modeled.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>22541950</pmid><doi>10.1016/j.biortech.2012.04.002</doi><tpages>8</tpages></addata></record> |
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| subjects | Air Algal harvesting Aluminum - pharmacology Biomass Cell Culture Techniques - methods Cell surface functional group Chlorella Chlorella - cytology Chlorella - drug effects Chlorella - growth & development Chlorella zofingiensis Coagulation culture media Culture Media - chemistry Dissolved organic matter Least-Squares Analysis Organic Chemicals - metabolism organic matter Solubility - drug effects |
| title | Influence of growth phase on harvesting of Chlorella zofingiensis by dissolved air flotation |
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