Sholeh, Muhammad (2026) Analisis Pengaruh Kuat Arus dan Waktu terhadap Efektifitas Adsorpsi-Recovery pada Proses Elektrodialisis Berbasis Membran Nano Chitosan Oligosakarida. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Rare Earth Elements (REE) merupakan kelompok 15 unsur lantanida beserta yttrium dan scandium yang memiliki peran strategis dalam berbagai teknologi modern.. Permintaan global REE terus meningkat seiring kebutuhan komponen kritis bernilai tinggi, khususnya untuk magnet NdFeB berbasis neodymium (Nd) yang digunakan pada motor listrik, perangkat elektronik, MRI, turbin angin. Metode ektraksi konvensional yaitu pirometalurgi kurang efektif dan ekonomis dalam mengekstraksi REE yang memiliki kadar rendah.. Metode hidrometalurgi yang dikombinasikan dengan bioadsorben adalah suatu Alternatif yang lebih ramah lingkungan yang dikombinasikan dengan listrik untuk mempercepat prosesnya. Adsorbsi ini menggunakan metode elektrodialisis yang dikombinasikan dengan bioadsorben nano Chitosan Oligosakarida dengan variasi arus 1A, 2A, 3A dengan waktu elektrodialisis 120 menit dan sampling 30 menit, 60 menit, 90 menit dan 120. Berdasarkan penelitian yang dilakukan elektrodialisis dengan waktu 120 menit recovery membran 3 A memiliki nilai terbesar dengan 78,5% lalu membran 2 A dengan nilai 58,5%, dan membran 1 A sebesar 37,1%, peningkatan ini menandakan pengaruh arus berbanding lurus terhadap waktu, namun berdasarkan uji FTIR membran 1 A yang terbukti mengadsorpsi Nd di wavenumber 1416, 1379, 1326 dan 1259 cm⁻¹, sehingga meskipun recovery tinggi, bukan mendefinisikan angka Nd yang teradsorp pada membran, sehingga sistem dan membran perlu adanya evaluasi.
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Rare Earth Elements (REE) are a group of 15 lanthanide elements, along with yttrium and scandium, that play a strategic role in various modern technologies. Global demand for REE continues to rise in line with the need for high-value critical components, particularly for neodymium (Nd)-based NdFeB magnets used in electric motors, electronic devices, MRI machines, and wind turbines. Conventional extraction methods, such as pyrometallurgy, are less effective and economical for extracting REE with low concentrations. Hydrometallurgical methods combined with bioadsorbents offer a more environmentally friendly alternative, supplemented by electricity to accelerate the process. This adsorption process employs electrodialysis combined with nano-chitosan oligosaccharide bioadsorbents, using current variations of 1 A, 2 A, and 3 A, with an electrodialysis duration of 120 minutes and sampling intervals of 30 minutes, 60 minutes, 90 minutes, and 120 minutes. Based on the study, for an electrodialysis duration of 120 minutes, the 3 A membrane had the highest recovery rate at 78.5%, followed by the 2 A membrane at 58.5%, and the 1 A membrane at 37.1%. This increase indicates that current has a direct proportional effect on recovery time; however, based on FTIR analysis, the 1 A membrane was found to adsorb Nd at wavenumbers of 1416, 1379, 1326, and 1259 cm⁻¹; thus, although the recovery rate is high, it does not define the exact amount of Nd adsorbed on the membrane, so the system and membranes require further evaluation.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Neodymium, Adsorpsi, Kitosan, Waktu, Kuat Arus, Neodymium, Adsorption, Chitosan, Time, Current |
| Subjects: | Q Science > QC Physics > QC162 Adsorption and absorption T Technology > TD Environmental technology. Sanitary engineering > TD480.5 Electrodialysis T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy T Technology > TP Chemical technology > TP248.65.C55 Chitosan--Biotechnology. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Sholeh |
| Date Deposited: | 27 Jul 2026 02:11 |
| Last Modified: | 27 Jul 2026 02:11 |
| URI: | http://repository.its.ac.id/id/eprint/137449 |
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