Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture
BACKGROUND This study aims to investigate the effect of simultaneous carbon dioxide (CO2) addition and biomass recycling on specific performance parameters (including biomass productivity and harvestability, and species abundance) of the mixed culture of two freshwater microalgae species Chlorella v...
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| Veröffentlicht in: | Journal of chemical technology and biotechnology (1986) 2021-12, Vol.96 (12), p.3398-3407 |
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| container_title | Journal of chemical technology and biotechnology (1986) |
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| creator | Fallahi, Alireza Hajinajaf, Nima Tavakoli, Omid Mehrabadi, Abbas |
| description | BACKGROUND
This study aims to investigate the effect of simultaneous carbon dioxide (CO2) addition and biomass recycling on specific performance parameters (including biomass productivity and harvestability, and species abundance) of the mixed culture of two freshwater microalgae species Chlorella vulgaris and Scenedesmus obliquus in a flat‐panel photobioreactor grown semicontinuously using secondary effluent urban wastewater as the culture medium. Recycling a portion of the gravity‐harvested biomass back to the system has positive effects on biomass productivity and harvestability by letting microalgal cells utilize more of the available light energy and promoting the dominance of settleable microalgal species of S. obliquus (owing to their large cell sizes) in the mixed culture. Furthermore, CO2 addition could supply the carbon limitation of urban wastewater and boost biomass production.
RESULTS
The work confirmed that simultaneous CO2 addition and biomass recycling improved the biomass productivity by 314%, promoted the dominance of the larger algae species S. obliquus in the mixed culture by 38%, and increased the gravity sedimentation by 85% compared to the control that had no recycling and CO2 addition. Concerning the secondary effluent urban wastewater, the interaction of CO2 addition and biomass recycling was insignificant regarding the improvement in nutrient removal efficiency.
CONCLUSION
The findings proved the potential benefits of simultaneous biomass recycling and CO2 addition for reaching a high cell density, and demonstrated its potential for high biomass harvest efficiency in microalgae‐based wastewater treatment systems. © 2021 Society of Chemical Industry (SCI). |
| doi_str_mv | 10.1002/jctb.6896 |
| format | Article |
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This study aims to investigate the effect of simultaneous carbon dioxide (CO2) addition and biomass recycling on specific performance parameters (including biomass productivity and harvestability, and species abundance) of the mixed culture of two freshwater microalgae species Chlorella vulgaris and Scenedesmus obliquus in a flat‐panel photobioreactor grown semicontinuously using secondary effluent urban wastewater as the culture medium. Recycling a portion of the gravity‐harvested biomass back to the system has positive effects on biomass productivity and harvestability by letting microalgal cells utilize more of the available light energy and promoting the dominance of settleable microalgal species of S. obliquus (owing to their large cell sizes) in the mixed culture. Furthermore, CO2 addition could supply the carbon limitation of urban wastewater and boost biomass production.
RESULTS
The work confirmed that simultaneous CO2 addition and biomass recycling improved the biomass productivity by 314%, promoted the dominance of the larger algae species S. obliquus in the mixed culture by 38%, and increased the gravity sedimentation by 85% compared to the control that had no recycling and CO2 addition. Concerning the secondary effluent urban wastewater, the interaction of CO2 addition and biomass recycling was insignificant regarding the improvement in nutrient removal efficiency.
CONCLUSION
The findings proved the potential benefits of simultaneous biomass recycling and CO2 addition for reaching a high cell density, and demonstrated its potential for high biomass harvest efficiency in microalgae‐based wastewater treatment systems. © 2021 Society of Chemical Industry (SCI).</description><identifier>ISSN: 0268-2575</identifier><identifier>EISSN: 1097-4660</identifier><identifier>DOI: 10.1002/jctb.6896</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Algae ; algae species control ; algal recycling ; Aquatic microorganisms ; Biomass ; Carbon dioxide ; carbon dioxide addition ; Cell culture ; Cell density ; Dominance ; Effluents ; mixed algal culture ; Mixed culture ; Nutrient removal ; Productivity ; Species ; wastewater ; Wastewater treatment</subject><ispartof>Journal of chemical technology and biotechnology (1986), 2021-12, Vol.96 (12), p.3398-3407</ispartof><rights>2021 Society of Chemical Industry (SCI).</rights><rights>Copyright © 2021 Society of Chemical Industry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-5332-9457</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjctb.6896$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjctb.6896$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Fallahi, Alireza</creatorcontrib><creatorcontrib>Hajinajaf, Nima</creatorcontrib><creatorcontrib>Tavakoli, Omid</creatorcontrib><creatorcontrib>Mehrabadi, Abbas</creatorcontrib><title>Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture</title><title>Journal of chemical technology and biotechnology (1986)</title><description>BACKGROUND
This study aims to investigate the effect of simultaneous carbon dioxide (CO2) addition and biomass recycling on specific performance parameters (including biomass productivity and harvestability, and species abundance) of the mixed culture of two freshwater microalgae species Chlorella vulgaris and Scenedesmus obliquus in a flat‐panel photobioreactor grown semicontinuously using secondary effluent urban wastewater as the culture medium. Recycling a portion of the gravity‐harvested biomass back to the system has positive effects on biomass productivity and harvestability by letting microalgal cells utilize more of the available light energy and promoting the dominance of settleable microalgal species of S. obliquus (owing to their large cell sizes) in the mixed culture. Furthermore, CO2 addition could supply the carbon limitation of urban wastewater and boost biomass production.
RESULTS
The work confirmed that simultaneous CO2 addition and biomass recycling improved the biomass productivity by 314%, promoted the dominance of the larger algae species S. obliquus in the mixed culture by 38%, and increased the gravity sedimentation by 85% compared to the control that had no recycling and CO2 addition. Concerning the secondary effluent urban wastewater, the interaction of CO2 addition and biomass recycling was insignificant regarding the improvement in nutrient removal efficiency.
CONCLUSION
The findings proved the potential benefits of simultaneous biomass recycling and CO2 addition for reaching a high cell density, and demonstrated its potential for high biomass harvest efficiency in microalgae‐based wastewater treatment systems. © 2021 Society of Chemical Industry (SCI).</description><subject>Algae</subject><subject>algae species control</subject><subject>algal recycling</subject><subject>Aquatic microorganisms</subject><subject>Biomass</subject><subject>Carbon dioxide</subject><subject>carbon dioxide addition</subject><subject>Cell culture</subject><subject>Cell density</subject><subject>Dominance</subject><subject>Effluents</subject><subject>mixed algal culture</subject><subject>Mixed culture</subject><subject>Nutrient removal</subject><subject>Productivity</subject><subject>Species</subject><subject>wastewater</subject><subject>Wastewater treatment</subject><issn>0268-2575</issn><issn>1097-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNotkMtOwzAQRS0EEqWw4A8ssQ613cSJl1CVlyp1073lx6R1lcTBdlT69ySU1Vxprs6VDkKPlDxTQtjiaJJ-5pXgV2hGiSiznHNyjWaE8SpjRVncorsYj4QQXjE-Q_26rsGkiH2No2uHJqkO_BDxasuwstYl5zusOou1862KEQcwZ9O4bo_Hxz74Uzpgc1BBmQTBxeTMH6x1JnjV7FUzxh-w2IzsIcA9uqlVE-Hh_87R7m29W31km-375-plk_WMLXmmoaKMCV4SakBQAXVZcqtFYSjVQgNADjavc8ItVQRyIWwF2tRcWyhFsZyjpwu2D_57gJjk0Q-hGxclK8RoKi_Z1FpcWifXwFn2wbUqnCUlcpIpJ5lykim_VrvXKSx_ARhPbEM</recordid><startdate>202112</startdate><enddate>202112</enddate><creator>Fallahi, Alireza</creator><creator>Hajinajaf, Nima</creator><creator>Tavakoli, Omid</creator><creator>Mehrabadi, Abbas</creator><general>John Wiley & Sons, Ltd</general><general>Wiley Subscription Services, Inc</general><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0001-5332-9457</orcidid></search><sort><creationdate>202112</creationdate><title>Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture</title><author>Fallahi, Alireza ; Hajinajaf, Nima ; Tavakoli, Omid ; Mehrabadi, Abbas</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p2236-be812296701ce919ef776db95c11b9beee4ed4f406d1a0e499d8ebcf6bde7953</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Algae</topic><topic>algae species control</topic><topic>algal recycling</topic><topic>Aquatic microorganisms</topic><topic>Biomass</topic><topic>Carbon dioxide</topic><topic>carbon dioxide addition</topic><topic>Cell culture</topic><topic>Cell density</topic><topic>Dominance</topic><topic>Effluents</topic><topic>mixed algal culture</topic><topic>Mixed culture</topic><topic>Nutrient removal</topic><topic>Productivity</topic><topic>Species</topic><topic>wastewater</topic><topic>Wastewater treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fallahi, Alireza</creatorcontrib><creatorcontrib>Hajinajaf, Nima</creatorcontrib><creatorcontrib>Tavakoli, Omid</creatorcontrib><creatorcontrib>Mehrabadi, Abbas</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Fallahi, Alireza</au><au>Hajinajaf, Nima</au><au>Tavakoli, Omid</au><au>Mehrabadi, Abbas</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture</atitle><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle><date>2021-12</date><risdate>2021</risdate><volume>96</volume><issue>12</issue><spage>3398</spage><epage>3407</epage><pages>3398-3407</pages><issn>0268-2575</issn><eissn>1097-4660</eissn><abstract>BACKGROUND
This study aims to investigate the effect of simultaneous carbon dioxide (CO2) addition and biomass recycling on specific performance parameters (including biomass productivity and harvestability, and species abundance) of the mixed culture of two freshwater microalgae species Chlorella vulgaris and Scenedesmus obliquus in a flat‐panel photobioreactor grown semicontinuously using secondary effluent urban wastewater as the culture medium. Recycling a portion of the gravity‐harvested biomass back to the system has positive effects on biomass productivity and harvestability by letting microalgal cells utilize more of the available light energy and promoting the dominance of settleable microalgal species of S. obliquus (owing to their large cell sizes) in the mixed culture. Furthermore, CO2 addition could supply the carbon limitation of urban wastewater and boost biomass production.
RESULTS
The work confirmed that simultaneous CO2 addition and biomass recycling improved the biomass productivity by 314%, promoted the dominance of the larger algae species S. obliquus in the mixed culture by 38%, and increased the gravity sedimentation by 85% compared to the control that had no recycling and CO2 addition. Concerning the secondary effluent urban wastewater, the interaction of CO2 addition and biomass recycling was insignificant regarding the improvement in nutrient removal efficiency.
CONCLUSION
The findings proved the potential benefits of simultaneous biomass recycling and CO2 addition for reaching a high cell density, and demonstrated its potential for high biomass harvest efficiency in microalgae‐based wastewater treatment systems. © 2021 Society of Chemical Industry (SCI).</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/jctb.6896</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-5332-9457</orcidid></addata></record> |
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| language | eng |
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| source | Wiley Journals |
| subjects | Algae algae species control algal recycling Aquatic microorganisms Biomass Carbon dioxide carbon dioxide addition Cell culture Cell density Dominance Effluents mixed algal culture Mixed culture Nutrient removal Productivity Species wastewater Wastewater treatment |
| title | Effects of simultaneous CO2 addition and biomass recycling on growth characteristics of microalgal mixed culture |
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