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All Journal Eksergi: Chemical Engineering Journal Jurnal Sains dan Teknologi
Hasnah Ulia
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Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Other

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Metode Modifikasi Membran Polietersulfon (PES) Untuk Meningkatkan Antifouling−Mini Review Modifikasi Membran Enny Nurmalasari; Hasnah Ulia; Apsari Puspita Aini; Agung Kurnia Yahya; Yunita Fahni
Eksergi Vol 20, No 2 (2023)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v20i2.9596

Abstract

Polyethersulfone (PES) is the most common material in various medical and water treatment applications because of its excellent mechanical and thermal properties. The hydrophobicity of polyethersulfone is considered as one of the main drawbacks because the hydrophobic surface causes a high biofouling effect on the membrane, so it has limitations in using Polietersulfon PES membrane technology. Modification of PES membranes is an important topic to be continuously developed to improve the properties of PES membranes. Membrane modifications focus on increasing the hydrophilicity, selectivity, and stability of membranes that are expected to be used commercially. Modifications were made to change the hydrophobic membrane surface into a hydrophilic membrane with good mechanical properties by introducing hydrophilic properties and functional groups to the polyethersulfone membrane surface. This review includes reviews and discussions on modifying PES membranes by mixing, coating, and grafting methods. In particular, adding functional groups to polyethersulfone is a suitable method for introducing hydrophilic properties. The addition of nanomaterials to the surface of the polyethersulfone membrane by mixing, coating, grafting, and combinations significantly increases the surface of the membrane, and all modifications affect the surface roughness of the membrane.
Pembuatan Kolom Adsorber untuk Pemurnian Gas H2S pada Produksi Biogas Ampas Tebu Aprilia, Ananda; Hasnah Ulia; Khairul Akli; Tasya Aqilah Cantifa
Jurnal Sains dan Teknologi Vol. 1 No. 3 (2026): Edisi: April-Juni
Publisher : Pustaka Bangsa Indonesia

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Abstract

Penelitian ini bertujuan memanfaatkan limbah ampas tebu sebagai biosorben untuk mengadsorpsi gas H₂S dalam biogas. Karbon aktif dibuat dari ampas tebu dan diaktivasi menggunakan NaOH dan KOH dengan ukuran partikel 40 dan 100 mesh, kemudian diuji pada kolom kontinu. Konsentrasi H₂S diukur menggunakan detektor gas. Hasil penelitian menunjukkan bahwa model kinetika Pseudo-First Order merupakan model yang paling sesuai dengan nilai R² sebesar 0,9734. Proses adsorpsi mencapai efisiensi hingga 100% dalam waktu 15 menit pada kondisi pengisian penuh. Nilai kapasitas adsorpsi tertinggi (qe) sebesar 6,4×10⁻⁴ mg/g diperoleh pada karbon aktif aktivasi KOH ukuran 100 mesh. Temuan ini menunjukkan bahwa ampas tebu berpotensi sebagai biosorben yang murah, efektif, dan ramah lingkungan untuk pemurnian biogas.
Co-Authors Aprilia, Ananda Apsari Puspita Aini Enny Nurmalasari Khairul Akli Tasya Aqilah Cantifa Yahya, Agung Kurnia Yunita Fahni