Optimasi Adsorpsi Ion Nacl Pada Elektroda Capasitive Deionization Dengan Membrane Ion Exchange

Pramartaningthyas, Ellys Kumala (2014) Optimasi Adsorpsi Ion Nacl Pada Elektroda Capasitive Deionization Dengan Membrane Ion Exchange. Masters thesis, Insititut Teknologi Sepuluh Nopember.

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Abstract

Salah satu sumber daya air yang belum dimanfaatkan sebagai sumber daya air minum secara maksimal adalah air laut. Untuk itu dibutuhkan sistem desalinasi yang baik dalam rangka pemanfaatan air laut sebagai sumber air bersih. Salah satu metode desalinasi air laut saat ini yang berkembang adalah teknologi capasitive deionization (CDI). Penelitian ini bertujuan untuk melakukan optimasi sistem CDI dengan elektroda CDI yang telah dibuat menggunakan metode croslinking dari perpaduan bahan karbon aktif tempurung kelapa dan binder polyvinyl alcohol serta dengan penambahan membran untuk pertukaran ion. Selanjutnya dilakukan pengujian optimasi sistem desalinasi secara eksperimen dengan menguji konduktivitas air yang dihasilkan dalam proses desalinasi untuk mengukur perubahan kadar garam yang terjadi. Hasil desalinasi pada penelitian ini didapatkan pengurangan kadar garam maksimum sebesar 59.09% terjadi pada kapasitansi 627 μMho, kecepatan aliran 10 mL/menit, tegangan sumber 1.5 V, dan penggunaan membrane ion exchange (m embran pertukaran ion). Sementara hasil optimasi yang dilakukan dengan penggunaan algoritma genetik didapatkan pengurangan kadar garam maksimum sebesar 70.34% terjadi pada kapasitansi = 627 μMho, laju aliran = 5.565 mL/menit, tegangan 1.8 V dan penggunaan membran pertukaran ion.
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Sea water is one of the water resources that hasn’t fully utilized for drinking water. In order to utilize sea water as a source of clean water then it required a good desalination system. One method of seawater desalination is capacitive deionization (CDI). The study was to optimize CDI system with the electrodes that have been fabricated by the cross-linking method. The electrodes were synthesized with an activated carbon from coconut shell, glutaric acid and polyvinyl alcohol as a binder and the addition of ion exchange membrane. Furthermore, the study was to investigate percentage value of salt removal from system CDI that has been fabricated. Conductivity and Salinity of water were measured before and after desalination process to get a percentage value of salt removal. The result showed that the maximum of salt removal was occurred at 59.09%, with the capacitance at 627 μMho, and flow rate at 10 mL/minutes with voltage source of 1.5 V and the addition of ion exchange membrane. Meanwhile, the optimization of CDI system using genetic algorithm showed that the maximum of salt removal was achieved at 70.34% when the system were optimized by the capacitance at 627 μMho, and flow rate at 5.565 mL/minute with voltage source of 1.8 V and the addition of ion exchange membrane.

Item Type:	Thesis (Masters)
Additional Information:	RTFi 541.372 4 Pra o
Uncontrolled Keywords:	Capasitive Deionization, Desalinasi, Membrane Ion Exchange, Optimasi, Polyvinyl Alcohol (PVA
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Mathematics and Science > Physics > 45101-(S2) Master Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	27 Nov 2023 07:51
Last Modified:	27 Nov 2023 07:51
URI:	http://repository.its.ac.id/id/eprint/105224

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