Abstract
Removal of oil spillage from the environment is a global concern. Various methods, including the use of fibers as sorbents, have been developed for oil spill control. Oil palm empty fruit bunch (OPEFB) fiber is a plant biomass that may be acetylated by acetic anhydride using N-bromosuccinimide (NBS) as a catalyst; here, the extent of acetylation may be calculated in terms of weight percent gain (WPG). The modified fiber was used to remove Tapis and Arabian crude oils. The optimum time, temperature, and catalyst concentration were 4 h, 120 °C, and 3 %, respectively, and these parameters could achieve an 11.49 % increase in WPG. The optimized parameters improved the adsorption capacity of OPEFB fibers for crude oil removal. The acetylated OPEFB fibers were characterized by using Fourier transform infrared spectroscopy and field emission scanning electron microscopy to observe the functional groups available and morphology. Kinetic and isotherm studies were conducted using different contact times and oil/water ratios. The rate of oil sorption onto the OPEFB fibers can be adequately described by the pseudo-second-order equation. Adsorption studies revealed that adsorption of crude oil on treated OPEFB fiber could be best described by the Langmuir isotherm model.
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The authors would like to thank Universiti Teknologi PETRONAS for providing the facilities and funding through the University Internal Research Funding (URIF Grant No 0153AA-B18) and Ministry of Higher Education (FRGS Grant No 0153AB-I09) for the financial support.
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Asadpour, R., Sapari, N.B., Isa, M.H. et al. Acetylation of oil palm empty fruit bunch fiber as an adsorbent for removal of crude oil. Environ Sci Pollut Res 23, 11740–11750 (2016). https://doi.org/10.1007/s11356-016-6349-2
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DOI: https://doi.org/10.1007/s11356-016-6349-2