Abstract
There is a dire need for an economical alternative to convert sea water into fresh water owing to prevalent methods demanding high power and large-scale infrastructures. In this regard, adsorption is considered as an attractive choice due to its renewable and cost-effective nature. In this study, banana stem waste (plantain pith) has been exploited for its capacity to efficiently remove sodium chloride from aqueous solution (sea water). However, removal of Na+ remains as a challenging task because of its high solubility in water. In the current work, cellulose-based polymer hydrogels are synthesized to increase the adsorption capacity of the extracted cellulose. Results show that cellulose, PVA, PAA and chitosan show similar adsorption capacities which supports our hypothesis. Though the maximum adsorption achieved is not very significant yet, these studies depict that modified bio-waste could serve as viable second, in place of synthetic polymers for desalination process.
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Acknowledgements
I wish to express my sincere gratitude to Professor Suresh for providing me with the opportunity to do my first research project at Department of Chemistry, NUS. I also sincerely thank Dr. Teh Yun Ling for her guidance and encouragement throughout the duration of the project. Lastly, I wish to express my gratitude to all the students and staff working in the same laboratory who helped me in carrying out this project work despite their busy schedules, motivated me to continue working after even after continuous failures and treated me as part of them.
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Xin, O.J. (2019). A Novel Approach to Desalination Using Modified Bio-wastes as Adsorbents. In: Guo, H., Ren, H., Bandla, A. (eds) IRC-SET 2018. Springer, Singapore. https://doi.org/10.1007/978-981-32-9828-6_17
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DOI: https://doi.org/10.1007/978-981-32-9828-6_17
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