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All Journal Eksergi: Chemical Engineering Journal Jurnal Teknik Kimia
Wahyu Meka
Department Of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111 Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Analisa eksperimental terhadap distribusi produk co-pyrolysis limbah sarung tangan medis dan limbah biomassa Azzalya Putri Athala; Yulia Fitri; Wahyu Meka; Abrar Ridwan; Rain A Mahendra; Tri N Rezeki; Laras S Widara; Munawir Hamzah
Jurnal Teknik Kimia Vol 28 No 3 (2022): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jtk.v28i3.1283

Abstract

Tingginya angka penyebaran covid-19 menimbulkan dampak bagi peningkatan limbah medis secara global. Limbah medis merupakan limbah infeksius yang tergolong limbah fosil, sifatnya yang non-biodegradable dapat menyebabkan pencemaran lingkungan. Salah satu metode pengelolaan limbah yang tepat saat ini adalah pirolisis. Pada penelitian ini dilakukan co-pirolisis sarung tangan medis yang digabungkan dengan limbah biologis (limbah makanan, limbah kebun dan limbah kertas) dengan persentase massa 100:0, 25:75, 50:50, 75:25, 0:100 (%). Hasil co-pirolisis sarung tangan medis dan limbah biologis berupa produk minyak, arang dan gas. Minyak dengan kadar tertinggi dihasilkan dari co-pirolisis sarung tangan medis dan limbah kertas pada persentase massa 75:25 (%) (40%). Hasil maksimum (55%) produk arang dihasilkan dari co-pirolisis sarung tangan medis dan limbah kebun pada persentase massa 75:25 (%). Kadar tertinggi (45%) dari gas diperoleh pada penggabungan sarung tangan medis dengan limbah makanan (persentase massa 75:25 (%). Secara keseluruhan, uji co-pirolisis sarung tangan medis dan limbah biomassa dengan persentase massa sampel yang divariasikan menghasilkan produk yang diharapkan dapat membantu pengembangan energi masa mendatang
Kinetic and Thermodynamic Studies in Cellulose Acetate-Polybutylene Succinate(CA-PBS)/Single Solvent/Water System for Desalination Membrane Retno Dwi Nyamiati; Siti Nurkhamidah; Yeni Rahmawati; Wahyu Meka
Eksergi Vol 20, No 1 (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.v20i1.8820

Abstract

The most important part of the membrane synthesis process so that it has the desired pores is the solidification process of the membrane, the process begins with a change from one liquid phase into two liquid phases (liquid-liquid demixing). At a certain period during demixing, the polymer-rich phase solidifies; thus, a dense membrane matrix is formed. Parameters that determine the mechanism of membrane formation are based on thermodynamics including phase separation of Solvent-Polymer-Non-solvent which is explained through a phase diagram (Flory-Huggins Theory). This study aims to determine the initial prediction of the formation of CA-PBS membranes with various solvents used and variations of non-solvents in the best system, which is proven by its characteristics and performance when applied to desalination membranes which include ternary diagrams using cloud point data, solubility parameters with Hansesn solubility, the solvent-non-solvent diffusivity using the Tyn Calus Equation approach and the morphological proofing of the membrane through SEM photos, and the performance of the resulting membrane through salt rejection and permeate flux. The results of the difference in solubility parameters are can be predicted that using DMF solvent on the CA-PBS membrane can reduce the pore size and eliminate voids and macrovoids in the membrane morphology.
Co-Authors Abrar Ridwan Azzalya Putri Athala Laras S Widara Munawir Hamzah Nurkhamidah, Siti Nyamiati, Retno Dwi Rain A Mahendra Tri N Rezeki Yeni Rahmawati, Yeni Yulia Fitri