Development of a two-stage microalgae dewatering process – A life cycle assessment approach
Even though microalgal biomass is leading the third generation biofuel research, significant effort is required to establish an economically-viable commercial-scale microalgal biofuel production system. Whilst a significant amount of work has been reported on large-scale cultivation of microalgae us...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-02-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00113/full |
| _version_ | 1819071453585211392 |
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| author | Rizwan R. Soomro Theoneste eNdikubwimana Xianhai eZeng Yinghua eLu Lu eLin Michael K Danquah |
| author_facet | Rizwan R. Soomro Theoneste eNdikubwimana Xianhai eZeng Yinghua eLu Lu eLin Michael K Danquah |
| author_sort | Rizwan R. Soomro |
| collection | DOAJ |
| description | Even though microalgal biomass is leading the third generation biofuel research, significant effort is required to establish an economically-viable commercial-scale microalgal biofuel production system. Whilst a significant amount of work has been reported on large-scale cultivation of microalgae using photo-bioreactors and pond systems, research focus on establishing high performance downstream dewatering operations for large-scale processing under optimal economy is limited. The enormous amount of energy and associated cost required for dewatering large-volume microalgal cultures has been the primary hindrance to the development of the needed biomass quantity for industrial-scale microalgal biofuels production. The extremely dilute nature of large-volume microalgal suspension and the small size of microalgae cells in suspension create a significant processing cost during dewatering and this has raised major concerns towards the economic success of commercial-scale microalgal biofuel production as an alternative to conventional petroleum fuels. This article reports an effective framework to assess the performance of different dewatering technologies as the basis to establish an effective two-stage dewatering system. Bioflocculation coupled with tangential flow filtration (TFF) emerged a promising technique with total energy input of 0.041 kWh, 0.05 kg CO2 emissions and a cost of $ 0.0043 for producing 1 kg of microalgae biomass. A streamlined process for operational analysis of two-stage microalgae dewatering technique, encompassing energy input, carbon dioxide emission and process cost, are presented. |
| first_indexed | 2024-12-21T17:22:04Z |
| format | Article |
| id | doaj.art-f91276f4d91743b1b85529bf87ef6d28 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-21T17:22:04Z |
| publishDate | 2016-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-f91276f4d91743b1b85529bf87ef6d282022-12-21T18:56:08ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2016-02-01710.3389/fpls.2016.00113163525Development of a two-stage microalgae dewatering process – A life cycle assessment approachRizwan R. Soomro0Theoneste eNdikubwimana1Xianhai eZeng2Yinghua eLu3Lu eLin4Michael K Danquah5Curtin UniversityXiamen UniversityXiamen UniversityXiamen UniversityXiamen UniversityCurtin UniversityEven though microalgal biomass is leading the third generation biofuel research, significant effort is required to establish an economically-viable commercial-scale microalgal biofuel production system. Whilst a significant amount of work has been reported on large-scale cultivation of microalgae using photo-bioreactors and pond systems, research focus on establishing high performance downstream dewatering operations for large-scale processing under optimal economy is limited. The enormous amount of energy and associated cost required for dewatering large-volume microalgal cultures has been the primary hindrance to the development of the needed biomass quantity for industrial-scale microalgal biofuels production. The extremely dilute nature of large-volume microalgal suspension and the small size of microalgae cells in suspension create a significant processing cost during dewatering and this has raised major concerns towards the economic success of commercial-scale microalgal biofuel production as an alternative to conventional petroleum fuels. This article reports an effective framework to assess the performance of different dewatering technologies as the basis to establish an effective two-stage dewatering system. Bioflocculation coupled with tangential flow filtration (TFF) emerged a promising technique with total energy input of 0.041 kWh, 0.05 kg CO2 emissions and a cost of $ 0.0043 for producing 1 kg of microalgae biomass. A streamlined process for operational analysis of two-stage microalgae dewatering technique, encompassing energy input, carbon dioxide emission and process cost, are presented.http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00113/fullBiofuelsMicroalgaebioprocessbiomassDewatering |
| spellingShingle | Rizwan R. Soomro Theoneste eNdikubwimana Xianhai eZeng Yinghua eLu Lu eLin Michael K Danquah Development of a two-stage microalgae dewatering process – A life cycle assessment approach Frontiers in Plant Science Biofuels Microalgae bioprocess biomass Dewatering |
| title | Development of a two-stage microalgae dewatering process – A life cycle assessment approach |
| title_full | Development of a two-stage microalgae dewatering process – A life cycle assessment approach |
| title_fullStr | Development of a two-stage microalgae dewatering process – A life cycle assessment approach |
| title_full_unstemmed | Development of a two-stage microalgae dewatering process – A life cycle assessment approach |
| title_short | Development of a two-stage microalgae dewatering process – A life cycle assessment approach |
| title_sort | development of a two stage microalgae dewatering process a life cycle assessment approach |
| topic | Biofuels Microalgae bioprocess biomass Dewatering |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2016.00113/full |
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