Pemanfaatan Limbah Plastik HDPE sebagai Membran untuk Menghilangkan Zat Warna dalam Air

Zulfiani, Utari (2023) Pemanfaatan Limbah Plastik HDPE sebagai Membran untuk Menghilangkan Zat Warna dalam Air. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pertumbuhan industri selain memberikan dampak yang baik bagi pertumbuhan ekonomi suatu negara, juga menimbulkan masalah lingkungan termasuk pencemaran air. Sekitar 80% air limbah industri dibuang ke lingkungan tanpa pengolahan, dimana 17-20% diantaranya didominasi oleh zat warna seperti methylene blue (MB) dan methyl orange (MO) dari industri tekstil. Di sisi lain, kelimpahan sampah plastik meningkat 14% atau 85.000 ton per tahun. Pada penelitian ini plastik jenis High-Density Polyethylene (HDPE) dimanfaatkan sebagai membran untuk menghilangkan zat warna dalam air. Membran HDPE difabrikasi menggunakan metode inversi fasa dengan pelarut mineral oil dan diperoleh konsentrasi optimum pada 15% (b/b) dengan rejeksi mencapai 99,72% pada MB 100 ppm, namun fluks yang dihasilkan masih sangat rendah yaitu 2,71 L/m2h. Poly(ethylene-co-vinyl acetate) (EVA) kemudian ditambahkan untuk meningkatkan hidrofilisitas membran dan dihasilkan peningkatan fluks sebesar 15,06 L/m2h dengan rejeksi 90,67% pada MB 100 ppm. Karena muatan negatifnya, membran HDPE lebih efektif untuk penghilangan zat warna kationik dibandingkan zat warna anionik. Semua membran telah dikarakterisasi dengan Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), dan sudut kontak. ===============================================================================================================================
Industrial growth besides having a good impact on a country's economic growth, also causes environmental problems including water pollution. About 80% of industrial wastewater is discharged into the environment without treatment, where 17-20% of it is dominated by dyes such as methylene blue (MB) and methyl orange (MO) from the textile industry. On the other hand, plastic waste mining increased 14% or 85,000 tons per year. In this study, High-Density Polyethylene (HDPE) plastic was used as a membrane to remove dyes in water. The HDPE membrane was fabricated using the phase inversion method with solvent mineral oil and the optimum concentration was obtained at 15% (w/w) with a rejection of 99.72% at MB 10 ppm, but the resulting flux was still very low, namely 2.71 L/m2h. Poly(ethylene-co-vinyl acetate) (EVA) was then added to increase the hydrophilicity of the membrane and produce an increase in flux of 15.06 L/m2h with a rejection of 90.67% at 10 ppm MB. Due to its negative charge, HDPE membrane is more effective for the removal of cationic dyes than anionic. All membranes were characterized by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and contact angles.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Membran Polimer, Sampah Plastik, Zat Warna, Pengolahan Air; Polymeric membrane, Plastic Waste, Dyes, Water Treatment
Subjects:	Q Science > QD Chemistry T Technology > TP Chemical technology > TP248.25.M46 Membrane separation
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47101-(S2) Master Thesis
Depositing User:	Utari Zulfiani
Date Deposited:	16 Feb 2023 02:43
Last Modified:	16 Feb 2023 02:43
URI:	http://repository.its.ac.id/id/eprint/97349

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