Green Technology for Bioadsorption of Petroleum Crude Oil in Seawater | ||
| Egyptian Journal of Chemistry | ||
| Volume 68, Issue 8, August 2025, Pages 279-293 PDF (674.32 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2024.342376.10940 | ||
| Authors | ||
| Hoda Abdelazeem Mohammed* 1; Reham Mohammed Mussa2; Wafaa Sobhi Abouelkhair3; Afaf Hassan Ali3 | ||
| 1Analysis and evaluation department,Egyptian petroleum research institute (EPRI),Cairo,Egypt | ||
| 2Environmental Basic Science Department, Faculty of Graduate Studies and Environmental Research, Ain Shams University, Cairo, Egypt. | ||
| 3Botany Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt. | ||
| Abstract | ||
| Phyco-remediation is a promising method for pollution reduction, offering advantages over other approaches. Dissolved crude oil fractions are highly toxic to marine life. The contribution of macroalgae (Sargassum sp.and Corallina sp.) as bio-adsorbents for the removal of water-soluble fractions (WSFs) of crude oil at different times and concentrations was estimated. The characterization of algae was analyzed using BET, SEM, FTIR and zeta analysis. The best value of n-alkanes and polycyclic aromatic hydrocarbons (PAHs) adsorption at a concentration of 25% for the two algae after 10 days. The same descending order rate of adsorption was found in PAHs >Light n-alkanes >Heavy n-alkanes. Sargassum sp.was the best to adsorb n-alkanes, while Corallina sp. was the best to adsorb PAHs. The BET surface area of the biosorbent algae was less than 0.6 m2/g. SEM showed that the surface algal cells became irregular and twisted due to the adsorption of contaminants. These algal cells exhibit different chemical groups present on seaweed surfaces that take part in crude oil adsorption as shown by FTIR. The zeta potential revealed that the cell of Sargassum sp.has a more negative surface than Corallina sp.. The present study indicates that seaweed has strong biosorbent potential, making it a cost-effective, efficient, and environmentally friendly solution for bioremediation. | ||
| Keywords | ||
| Crude Oil; Sargassum; Corallina; Adsorption; Phyco-remediation and GC-MS | ||
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