Rifai, Muhammad Ayub (2025) Pengaruh Penambahan Aditif dan Waktu Perendaman pada Pembuatan Membran Cellulose Acetate dan Polyethersulfone untuk Aplikasi Pemisahan Mikroplastik dalam Air. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Plastik erat kaitannya dengan keseharian masyarakat Indonesia. Sampah plastik di Indonesia mencapai 64 juta ton/tahun dimana 3,2 juta ton di antaranya merupakan sampah plastik yang dibuang ke laut. Dengan membutuhkan waktu yang lama, plastik akan terdekomposisi menjadi mikroplastik (MPs) dengan diameter kurang dari 5 mm, yang dimana MPs dalam matriks air menimbulkan beberapa kerugian. Salah satu metode penghilangan MPs yang dinilai efisien yaitu mikrofiltrasi MPs menggunakan teknologi membran. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan aditif dan waktu perendaman terhadap karakteristik dan kinerja membran penghilang MPs. Dalam penelitian ini, proses pembuatan membran menggunakan polimer Cellulose Acetate (CA) dan Polyethersulfone (PES), pelarut N-methyl-2-pyrrolidone (NMP), dan bahan aditif Polyvinyl Pyrrolidone (PVP) dengan metode inversi fasa. Hasil dari penelitan ini menunjukkan bahwa seiring bertambahnya waktu perendaman, nilai PWF dan rejeksi MPs semakin menurun karena ukuran diameter pori yang semakin menurun pula. Penambahan aditif PVP 10K dan 40K menyebabkan sifat membran menjadi hidrofilik sehingga dapat meningkatkan kinerja dari membran dalam memisahkan MPs. Membran PES dengan PVP 40K sebanyak 4%, waktu perendaman selama 10 menit dan suhu penguapan 60⁰C memiliki hasil PWF optimum. Sedangkan nilai rejeksi MPs optimum dicapai pada membran PES dengan penambahan PVP 40K sebanyak 4%, waktu perendaman selama 25 menit dan suhu penguapan 30⁰C.
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Plastic is closely related to the daily lives of Indonesians. Plastic waste in Indonesia reaches 64 million tonnes/year of which 3.2 million tonnes are plastic waste disposed into the sea. By taking a long time, plastic will decompose into microplastics (MPs) with a diameter of less than 5 mm, which MPs in the water matrix cause several losses. One method of MPs removal that is considered efficient is MPs microfiltration using membrane technology. The purpose of this study was to determine the effect of additive addition and immersion time on the characteristics and performance of MPs removal membrane. In this study, the membrane manufacturing process used Cellulose Acetate (CA) and Polyethersulfone (PES) polymers, N-methyl-2-pyrrolidone (NMP) solvent, and Polyvinyl Pyrrolidone (PVP) additive by phase inversion method. The results showed that as the immersion time increased, the PWF and rejection values of MPs decreased due to the decreasing pore diameter size. The addition of PVP 10K and 40K additives causes the membrane properties to be hydrophilic so as to improve the performance of the membrane in separating MPs. PES membrane with PVP 40K as much as 4%, immersion time for 10 minutes and evaporation temperature of 60⁰C has optimum PWF results. While the optimum MPs rejection value was achieved in PES membrane with the addition of PVP 40K as much as 4%, immersion time for 25 minutes and evaporation temperature of 30⁰C.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | cellulose acetate, membrane, mikroplastic, mikrofiltration, polyethersulfone, mikroplastik, mikrofiltrasi, membran, polietersulfon, selulosa asetat |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24101-(S2) Master Thesis |
| Depositing User: | Muhammad Ayub Rifai |
| Date Deposited: | 03 Feb 2025 01:45 |
| Last Modified: | 03 Feb 2025 01:45 |
| URI: | http://repository.its.ac.id/id/eprint/117235 |
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