Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review
<p dir="ltr">This review explores <i>microalgae</i> as a sustainable solution for CO₂ reduction and <i>wastewater treatment</i>, particularly in resource-limited GCC regions. The study highlights recent advances in microalgal <u>biodiesel</u> produ...
محفوظ في:
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| مؤلفون آخرون: | , |
| منشور في: |
2025
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| _version_ | 1864513521290575872 |
|---|---|
| author | Abdullah M. AlSalal (23770842) |
| author2 | Fares Almomani (12585685) Salem Alkanaimsh (21993677) |
| author2_role | author author |
| author_facet | Abdullah M. AlSalal (23770842) Fares Almomani (12585685) Salem Alkanaimsh (21993677) |
| author_role | author |
| dc.creator.none.fl_str_mv | Abdullah M. AlSalal (23770842) Fares Almomani (12585685) Salem Alkanaimsh (21993677) |
| dc.date.none.fl_str_mv | 2025-06-09T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.jece.2025.117465 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Harnessing_microalgae_for_a_synergistic_approach_to_CO_capture_wastewater_treatment_and_biodiesel_production_A_review/32075484 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Environmental engineering Environmental sciences Environmental biotechnology Microalgae-based systems (MABS) CO₂ capture Lipid extraction Circular biorefinery Bioprocess |
| dc.title.none.fl_str_mv | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This review explores <i>microalgae</i> as a sustainable solution for CO₂ reduction and <i>wastewater treatment</i>, particularly in resource-limited GCC regions. The study highlights recent advances in microalgal <u>biodiesel</u> production and promotes integrated systems combining CO₂ capture, nutrient recovery, and biofuel generation to support circular biorefinery models. Microalgae, particularly <i>Chlorella vulgaris </i>exhibit high photosynthetic efficiency with CO₂ fixation rates up to 1.5 g CO₂/L/day while removing > 90 % of nitrogen and phosphorus from wastewater. Under optimized mixotrophic conditions, C. vulgaris achieves biomass concentrations of 4.0 g/L with 20–40 % lipid content, supporting viable biodiesel yields. These characteristics make it particularly suitable for integrated environmental remediation and biofuel production. Innovative cultivation strategies including high-rate algal ponds, membrane <u>bioreactors</u>, and CO₂-enriched <u>flue gas</u> significantly enhance productivity and resource efficiency. Advanced harvesting techniques like <u>flocculation</u>, dissolved air <u>flotation</u>, and decanter centrifugation have improved biomass recovery (> 93 %) while reducing energy consumption. Extraction methods using <u>ionic liquids</u>, bio-based solvents (e.g., 2-MeTHF), and supercritical CO₂ achieve yields up to 97 %, while optimized <u>transesterification</u> processes using microwave or ultrasound-assisted catalysis report fatty acid methyl ester yields up to 88 %. Despite promising developments, commercial implementation faces challenges including high operational costs, energy-intensive processing, and biomass quality variability. Hybrid systems coupling microalgal cultivation with <u>wastewater treatment</u> and <u>industrial effluents</u> offer scalable pathways to enhance economic feasibility. This review summarizes advancements in MABS, identifies knowledge gaps, and outlines future directions for integrating CO₂ capture, wastewater treatment, and biofuel production, while emphasizing the importance of policy support and innovation for sustainable environmental and energy systems.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Journal of Environmental Chemical Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jece.2025.117465" target="_blank">https://dx.doi.org/10.1016/j.jece.2025.117465</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_e834133ac147f558123f2c10735a7a82 |
| identifier_str_mv | 10.1016/j.jece.2025.117465 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/32075484 |
| publishDate | 2025 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A reviewAbdullah M. AlSalal (23770842)Fares Almomani (12585685)Salem Alkanaimsh (21993677)EngineeringEnvironmental engineeringEnvironmental sciencesEnvironmental biotechnologyMicroalgae-based systems (MABS)CO₂ captureLipid extractionCircular biorefineryBioprocess<p dir="ltr">This review explores <i>microalgae</i> as a sustainable solution for CO₂ reduction and <i>wastewater treatment</i>, particularly in resource-limited GCC regions. The study highlights recent advances in microalgal <u>biodiesel</u> production and promotes integrated systems combining CO₂ capture, nutrient recovery, and biofuel generation to support circular biorefinery models. Microalgae, particularly <i>Chlorella vulgaris </i>exhibit high photosynthetic efficiency with CO₂ fixation rates up to 1.5 g CO₂/L/day while removing > 90 % of nitrogen and phosphorus from wastewater. Under optimized mixotrophic conditions, C. vulgaris achieves biomass concentrations of 4.0 g/L with 20–40 % lipid content, supporting viable biodiesel yields. These characteristics make it particularly suitable for integrated environmental remediation and biofuel production. Innovative cultivation strategies including high-rate algal ponds, membrane <u>bioreactors</u>, and CO₂-enriched <u>flue gas</u> significantly enhance productivity and resource efficiency. Advanced harvesting techniques like <u>flocculation</u>, dissolved air <u>flotation</u>, and decanter centrifugation have improved biomass recovery (> 93 %) while reducing energy consumption. Extraction methods using <u>ionic liquids</u>, bio-based solvents (e.g., 2-MeTHF), and supercritical CO₂ achieve yields up to 97 %, while optimized <u>transesterification</u> processes using microwave or ultrasound-assisted catalysis report fatty acid methyl ester yields up to 88 %. Despite promising developments, commercial implementation faces challenges including high operational costs, energy-intensive processing, and biomass quality variability. Hybrid systems coupling microalgal cultivation with <u>wastewater treatment</u> and <u>industrial effluents</u> offer scalable pathways to enhance economic feasibility. This review summarizes advancements in MABS, identifies knowledge gaps, and outlines future directions for integrating CO₂ capture, wastewater treatment, and biofuel production, while emphasizing the importance of policy support and innovation for sustainable environmental and energy systems.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Journal of Environmental Chemical Engineering<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.jece.2025.117465" target="_blank">https://dx.doi.org/10.1016/j.jece.2025.117465</a></p>2025-06-09T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.jece.2025.117465https://figshare.com/articles/journal_contribution/Harnessing_microalgae_for_a_synergistic_approach_to_CO_capture_wastewater_treatment_and_biodiesel_production_A_review/32075484CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/320754842025-06-09T09:00:00Z |
| spellingShingle | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review Abdullah M. AlSalal (23770842) Engineering Environmental engineering Environmental sciences Environmental biotechnology Microalgae-based systems (MABS) CO₂ capture Lipid extraction Circular biorefinery Bioprocess |
| status_str | publishedVersion |
| title | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| title_full | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| title_fullStr | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| title_full_unstemmed | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| title_short | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| title_sort | Harnessing microalgae for a synergistic approach to CO₂ capture, wastewater treatment, and biodiesel production: A review |
| topic | Engineering Environmental engineering Environmental sciences Environmental biotechnology Microalgae-based systems (MABS) CO₂ capture Lipid extraction Circular biorefinery Bioprocess |