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Effect of hydrophilic coating for membrane assisted air diffuser for Chlorella vulgaris cultivation


 
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1. Title Title of document Effect of hydrophilic coating for membrane assisted air diffuser for Chlorella vulgaris cultivation
 
2. Creator Author's name, affiliation, country A. S. Ishak, N. A. H. M. Nordin, M. R. Bilad, M. K. Lam; Morocco
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Chlorella Vulgaris; Algae Cultivation; Membrane; Air Diffuser; Hydrophilic
 
4. Description Abstract

Microalgae cultivation has high potential in capturing atmospheric carbon dioxide (CO2) but are limited by poor CO2 mass transfer to the algae. Therefore, improving mass transfer by increasing total contact area of gas-liquid through minimizing bubble size formed is investigated. In this project, the effect of polyether block amide (PEBAX® 1657) coating (i.e. different concentration and coating cycle) on polyvinylidenefluoride (PVDF) membrane surface properties are investigated and their impact on algae cultivation are evaluated using Chlorella vulgaris for duration of 14 days. The presence of functional groups from PEBAX coating showed the success of coating process and membrane hydrophilicity is improved from 111.19 ± 0.10° to 40.57 ± 1.29° when PEBAX 2.0 wt% is used. Membrane porosity is reduced when PEBAX concentration and number of coating cycle increased. Concentration of biomass is the highest (1.107 g/L) when PVDF/PEBAX 2.0 wt% is used, likely because of small size of CO2 bubbles delivered into culture medium.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 09-01-2020
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/19131
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v8i1.19131
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Special Volume 8 S1 (2020) : The 1st International Conference on Science, Applied Science, (ICoSASTE) 2019
 
12. Language English=en en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2020 Moroccan Journal of Chemistry