Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities
<p dir="ltr">The utilization of purple non-sulfur bacteria (PNSB) has emerged as an eco-friendly approach to biological <u>wastewater treatment.</u> However, the high energy demands associated with artificial lighting have been a major drawback to scaling up this biotechn...
محفوظ في:
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| مؤلفون آخرون: | , , , |
| منشور في: |
2024
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| الموضوعات: | |
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إضافة وسم
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| _version_ | 1864513522586615808 |
|---|---|
| author | Ojima Z. Wada (14155734) |
| author2 | Mujaheed Pasha (16641658) Annette S. Vincent (17058078) Gordon McKay (1755814) Hamish R. Mackey (10159514) |
| author2_role | author author author author |
| author_facet | Ojima Z. Wada (14155734) Mujaheed Pasha (16641658) Annette S. Vincent (17058078) Gordon McKay (1755814) Hamish R. Mackey (10159514) |
| author_role | author |
| dc.creator.none.fl_str_mv | Ojima Z. Wada (14155734) Mujaheed Pasha (16641658) Annette S. Vincent (17058078) Gordon McKay (1755814) Hamish R. Mackey (10159514) |
| dc.date.none.fl_str_mv | 2024-12-25T18:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.psep.2024.12.037 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Dim_lights_bright_prospects_Purple_phototrophic_bacteria-driven_industrial_wastewater_treatment_for_biomass_resource_recovery_at_low_light_intensities/31443778 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Economics Applied economics Engineering Environmental engineering Single-cell protein Water-food-energy nexus Biomass valorization Circular economy Nutrient recovery Biorefinery |
| dc.title.none.fl_str_mv | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">The utilization of purple non-sulfur bacteria (PNSB) has emerged as an eco-friendly approach to biological <u>wastewater treatment.</u> However, the high energy demands associated with artificial lighting have been a major drawback to scaling up this biotechnology. Thus, this study investigates the phototrophic treatment of gas-to-liquid wastewater (COD=6.1 g·L<sup>−1</sup>) and biomass recovery using PNSB mixed culture at low light intensities (9.6 and 17.6 W·m<sup>−2</sup>). The non-axenic culture achieved high <u>pollutant removal</u> rates (347–453 mgCOD·L<sup>−1</sup>d<sup>−1 </sup>and 22–31 mgTN·L<sup>−1</sup>d<sup>−1</sup>), effective biomass concentrations (1.6–1.8 gVSS·L<sup>−1</sup>), yields (0.5–0.8 gCODbiomass·gCODremoved<sup>−1</sup>) and moderate PNSB <u>selectivity </u>(32–35 %), favouring the higher light intensity (HLI). Recovered biomass chiefly consisted of protein (43–48 %), lipids (33–34 %), carbohydrates (8–10 %), poly-3-hydroxybutyrate-co-3-hydroxyvalerate (2–10 %), <u>bacteriochlorophyll</u> (1.2–1.3 %), <u>carotenoids</u> (0.4–0.6 %), and <u>coenzyme </u>Q10 (0.001–0.004 %). <u>Amino acid </u>characterization showed superior quality compared to soybeans, maize, and seaweed, containing <u>essential amino acids</u> for <u>livestock</u>. Lipid characterization revealed that biomass consisted chiefly of mono-unsaturated C16-C18 fatty acids with biodiesel potential and nutritional value. Further analysis revealed the biomass was fortified with micro and macro nutrients suitable for soil enrichment. Overall, this study highlights PNSB's ability to treat high-strength <u>industrial wastewater</u> and upcycle nutrients into valuable substances at dim intensities, facilitating a multiple-stream <u>circular economy</u> in resource-scarce and solar-dim regions.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Process Safety and Environmental Protection<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.psep.2024.12.037" target="_blank">https://dx.doi.org/10.1016/j.psep.2024.12.037</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_47b8d0c2521dbbf0c618d5ad3921759e |
| identifier_str_mv | 10.1016/j.psep.2024.12.037 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/31443778 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensitiesOjima Z. Wada (14155734)Mujaheed Pasha (16641658)Annette S. Vincent (17058078)Gordon McKay (1755814)Hamish R. Mackey (10159514)EconomicsApplied economicsEngineeringEnvironmental engineeringSingle-cell proteinWater-food-energy nexusBiomass valorizationCircular economyNutrient recoveryBiorefinery<p dir="ltr">The utilization of purple non-sulfur bacteria (PNSB) has emerged as an eco-friendly approach to biological <u>wastewater treatment.</u> However, the high energy demands associated with artificial lighting have been a major drawback to scaling up this biotechnology. Thus, this study investigates the phototrophic treatment of gas-to-liquid wastewater (COD=6.1 g·L<sup>−1</sup>) and biomass recovery using PNSB mixed culture at low light intensities (9.6 and 17.6 W·m<sup>−2</sup>). The non-axenic culture achieved high <u>pollutant removal</u> rates (347–453 mgCOD·L<sup>−1</sup>d<sup>−1 </sup>and 22–31 mgTN·L<sup>−1</sup>d<sup>−1</sup>), effective biomass concentrations (1.6–1.8 gVSS·L<sup>−1</sup>), yields (0.5–0.8 gCODbiomass·gCODremoved<sup>−1</sup>) and moderate PNSB <u>selectivity </u>(32–35 %), favouring the higher light intensity (HLI). Recovered biomass chiefly consisted of protein (43–48 %), lipids (33–34 %), carbohydrates (8–10 %), poly-3-hydroxybutyrate-co-3-hydroxyvalerate (2–10 %), <u>bacteriochlorophyll</u> (1.2–1.3 %), <u>carotenoids</u> (0.4–0.6 %), and <u>coenzyme </u>Q10 (0.001–0.004 %). <u>Amino acid </u>characterization showed superior quality compared to soybeans, maize, and seaweed, containing <u>essential amino acids</u> for <u>livestock</u>. Lipid characterization revealed that biomass consisted chiefly of mono-unsaturated C16-C18 fatty acids with biodiesel potential and nutritional value. Further analysis revealed the biomass was fortified with micro and macro nutrients suitable for soil enrichment. Overall, this study highlights PNSB's ability to treat high-strength <u>industrial wastewater</u> and upcycle nutrients into valuable substances at dim intensities, facilitating a multiple-stream <u>circular economy</u> in resource-scarce and solar-dim regions.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: Process Safety and Environmental Protection<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.psep.2024.12.037" target="_blank">https://dx.doi.org/10.1016/j.psep.2024.12.037</a></p>2024-12-25T18:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.psep.2024.12.037https://figshare.com/articles/journal_contribution/Dim_lights_bright_prospects_Purple_phototrophic_bacteria-driven_industrial_wastewater_treatment_for_biomass_resource_recovery_at_low_light_intensities/31443778CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/314437782024-12-25T18:00:00Z |
| spellingShingle | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities Ojima Z. Wada (14155734) Economics Applied economics Engineering Environmental engineering Single-cell protein Water-food-energy nexus Biomass valorization Circular economy Nutrient recovery Biorefinery |
| status_str | publishedVersion |
| title | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| title_full | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| title_fullStr | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| title_full_unstemmed | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| title_short | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| title_sort | Dim lights, bright prospects: Purple phototrophic bacteria-driven industrial wastewater treatment for biomass resource recovery at low light intensities |
| topic | Economics Applied economics Engineering Environmental engineering Single-cell protein Water-food-energy nexus Biomass valorization Circular economy Nutrient recovery Biorefinery |