Preparation and Characterization of Polyvinyl Chloride/Polymethyl- Methacrylate/Graphite [PVC/PMMA/G] Membrane Used for the Purification of the Bioethanol Produced from the Hydrolysis and Fermentation of Rice waste | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 66, Issue 13, December 2023, Page 267-281 PDF (2.55 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2022.143958.6292 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Tarek H. Taha   1; Rania H. Taha2, 3; M. A. Abu-Saied4; A. E. Mansy5; Mervat A. Elsherif6, 7
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| 1Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-CITY), Borg El-Arab New City, Alexandria 21934, Egypt. | ||||
| 2Chemistry Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia. - Department of Chemistry, Faculty of Science (Girls), Al-Azhar University, Yousef Abbas Str., Nasr City, Cairo, Egypt | ||||
| 3Department of Chemistry, Faculty of Science (Girls), Al-Azhar University, Yousef Abbas Str., Nasr City, Cairo, Egypt. | ||||
| 4Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-CITY), Borg El-Arab New City, Alexandria 21934, Egypt. | ||||
| 5Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications, (SRTA-CITY), Borg El-Arab New City, Alexandria 21934, Egypt. | ||||
| 6Chemistry Department, College of Science, Jouf University, P.O. Box: 2014, Sakaka, Saudi Arabia. | ||||
| 7Food Technology Research Institute, Agriculture Research Center, Giza, Egypt | ||||
| Abstract | ||||
| Rice waste as a starchy food waste that is discharged daily into the environment in huge amounts has been used as a valuable source for the production of bioethanol. The tested parameters investigated that phosphoric acid as a chemical representative combined with autoclaving as a physical representative are the most potent conditions for the liberation of glucose units from the starch molecules among other tested conditions. The optimization process revealed that the maximum production of simple sugars of 12.39 mg/ml from rice waste can be obtained through the pre-treatment of 5% rice waste with 20% H3PO4 and autoclaving followed by the amylase hydrolysis. These liberated glucose units have been successfully fermented into 5.2 mg/ml bioethanol using a yeast strain (Pichia nakasei with the accession number OK092294). The separation of the produced bioethanol from other media components was performed via amicon cell ultrafiltration system integrated with polymeric membrane. The membrane was prepared from Polyvinyl chloride/Polymethylmethacrylate/ Graphite [PVC/PMMA/G] with different thicknesses 400, 500 and 600 µm. For membrane characterization, Fourier transform infrared (FT-IR), scanning electron microscope (SEM), tensile strength, water contact angle, and water and ethanol uptakes have been used. Among the tested membranes thicknesses, the obtained results showed that the best membrane thickness is 500 µm which recoded 939.526 (mg/m2.h) and 10.557 for flux of permeate and separation factor, respectively. | ||||
| Keywords | ||||
| Bioethanol; rice waste; amicon cell; PVC/PMMA/G membrane | ||||
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