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Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris
Investigating alternatives for fossil fuels have always been an area of interest for scientist around the globe. The decline in the oil & gas stock along with the increasing demand for energy that accompanies the increase in population has created the need for an alternative energy solution. From th...
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| Format: | Thesis |
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AUC Knowledge Fountain
2019
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| _version_ | 1867613411888594944 |
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| access_status_str | Open Access |
| author | Roshdy, Ali Mohamed |
| author_browse | Roshdy, Ali Mohamed |
| author_facet | Roshdy, Ali Mohamed |
| author_sort | Roshdy, Ali Mohamed |
| collection | Thesis |
| dc_rights_str_mv | The author retains all rights with regard to copyright. The author certifies that written permission from the owner(s) of third-party copyrighted matter included in the thesis, dissertation, paper, or record of study has been obtained. The author further certifies that IRB approval has been obtained for this thesis, or that IRB approval is not necessary for this thesis. Insofar as this thesis, dissertation, paper, or record of study is an educational record as defined in the Family Educational Rights and Privacy Act (FERPA) (20 USC 1232g), the author has granted consent to disclosure of it to anyone who requests a copy. |
| description | Investigating alternatives for fossil fuels have always been an area of interest for scientist around the globe. The decline in the oil & gas stock along with the increasing demand for energy that accompanies the increase in population has created the need for an alternative energy solution. From the renewable energy solution, microalgae stand out as a very promising source for biofuel production due to its high lipid content. However, the production of biofuel from microalgae is still of a high cost compared to production of the same amount from fossil fuels. The unfeasibility commercial production for biofuel from microalgae goes back to the high cost in the cultivation process, mainly supply the cultivation medium with nutrients, extraction process, and transesterification process. This research aimed to reduce the cultivation process cost by investigating the substitution of required nutrients in the synthetic Woods Hole MBL (MBL) medium by those available in wastewater streams. Chlorella vulgaris was selected for this research for its high biomass productivity and its ability for adaptation in various media. Different cultivation conditions were tested to reach to growth rate close to which was recorded from the cultivation on synthetic medium (MBL). The research reached to the conclusion that a mixture between synthetic medium (MBL) and non-sterilized agriculture wastewater under indirect sunlight (16:8 light to dark cycle) achieved a growth rate close to the growth rate from cultivation on a pure synthetic medium (MBL). Regarding total lipids, The non-sterilizer agriculture wastewater and MBL mixture achieved the highest results after fourteen cultivation days. Both growth rates and total lipid results prove that a mixture between agriculture wastewater and synthetic medium (MBL) can be utilized as a substitution for the pure MBL medium. This substitution will support the objective of reducing the total cost for producing biofuel from microalgae. |
| format | Thesis |
| id | oai:fount.aucegypt.edu:etds-1730 |
| institution | American University in Cairo (Egypt) |
| last_indexed | 2026-06-10T12:35:43.583Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from AUC Knowledge Fountain — bepress |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | AUC Knowledge Fountain |
| publisherStr | AUC Knowledge Fountain |
| record_format | dspace |
| source_str | AUC Knowledge Fountain — bepress |
| spelling | oai:fount.aucegypt.edu:etds-1730 Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris Roshdy, Ali Mohamed Investigating alternatives for fossil fuels have always been an area of interest for scientist around the globe. The decline in the oil & gas stock along with the increasing demand for energy that accompanies the increase in population has created the need for an alternative energy solution. From the renewable energy solution, microalgae stand out as a very promising source for biofuel production due to its high lipid content. However, the production of biofuel from microalgae is still of a high cost compared to production of the same amount from fossil fuels. The unfeasibility commercial production for biofuel from microalgae goes back to the high cost in the cultivation process, mainly supply the cultivation medium with nutrients, extraction process, and transesterification process. This research aimed to reduce the cultivation process cost by investigating the substitution of required nutrients in the synthetic Woods Hole MBL (MBL) medium by those available in wastewater streams. Chlorella vulgaris was selected for this research for its high biomass productivity and its ability for adaptation in various media. Different cultivation conditions were tested to reach to growth rate close to which was recorded from the cultivation on synthetic medium (MBL). The research reached to the conclusion that a mixture between synthetic medium (MBL) and non-sterilized agriculture wastewater under indirect sunlight (16:8 light to dark cycle) achieved a growth rate close to the growth rate from cultivation on a pure synthetic medium (MBL). Regarding total lipids, The non-sterilizer agriculture wastewater and MBL mixture achieved the highest results after fourteen cultivation days. Both growth rates and total lipid results prove that a mixture between agriculture wastewater and synthetic medium (MBL) can be utilized as a substitution for the pure MBL medium. This substitution will support the objective of reducing the total cost for producing biofuel from microalgae. 2019-02-01T08:00:00Z thesis application/pdf https://fount.aucegypt.edu/etds/731 https://fount.aucegypt.edu/context/etds/article/1730/viewcontent/Ali_20Rohsdy_20Thesis.pdf The author retains all rights with regard to copyright. The author certifies that written permission from the owner(s) of third-party copyrighted matter included in the thesis, dissertation, paper, or record of study has been obtained. The author further certifies that IRB approval has been obtained for this thesis, or that IRB approval is not necessary for this thesis. Insofar as this thesis, dissertation, paper, or record of study is an educational record as defined in the Family Educational Rights and Privacy Act (FERPA) (20 USC 1232g), the author has granted consent to disclosure of it to anyone who requests a copy. Theses and Dissertations AUC Knowledge Fountain microalgae Chlorella vulgaris |
| spellingShingle | microalgae Chlorella vulgaris Roshdy, Ali Mohamed Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title | Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title_full | Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title_fullStr | Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title_full_unstemmed | Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title_short | Utilizing wastewater as nutrition source for the cultivation of Chlorella vulgaris |
| title_sort | utilizing wastewater as nutrition source for the cultivation of chlorella vulgaris |
| topic | microalgae Chlorella vulgaris |
| url | https://fount.aucegypt.edu/etds/731 https://fount.aucegypt.edu/context/etds/article/1730/viewcontent/Ali_20Rohsdy_20Thesis.pdf |
| work_keys_str_mv | AT roshdyalimohamed utilizingwastewaterasnutritionsourceforthecultivationofchlorellavulgaris |