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Medyan Riza
Universitas Syiah Kuala
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Other

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Journal : JURNAL REKAYASA KIMIA

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The Improvement of Hydrophilic Property of Polyethersulfone Membrane with Chitosan as Additive Umi Fathanah; Izarul Machdar; Medyan Riza; Nasrul Arahman; Mirna Rahmah Lubis; Mukramah Yusuf
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan (June, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i1.15916

Abstract

Membrane technology has been implemented broadly for clean water treatment. To produce a better membrane, modification is carried out by adding chitosan into a polymer solution. Materials used in this research are polyethersulfone (PES) 18%, the n-methyl pyrrolidone solvent modified with a chitosan solution (at 0.2 1 wt%) as an additive, and deionized water as a non-solvent. The membrane synthesis is carried out with the non-solvent induced phase separation method of blending the polymer. Membrane characterization includes functional group analysis, morphological structure, and water contact angle. Membrane performance is monitored at the filtration process, resulting in the permeability coefficient, and for the rejection of a contaminant (humic acid) with dead-end filtration. Research results show that the modified membrane characterization has an asymmetric morphological structure with a thinner top layer, and the membrane sublayer has a finger-like macrovoid structure with a larger size as compared to the original PES membrane (without the chitosan solution addition). The chitosan additive into the PES membrane improves the membranes hydrophilic property. The highest value of the permeability coefficient is achieved with a 1% chitosan addition, which provides a permeability coefficient value of 10.524 L/m2.h.bar and a rejection coefficient of 70.3%.
The Performance and Characterization of Biodegradable Plastic from Tapioca Starch: Effect of Modified Chitosan Lia Ernita; Medyan Riza; Syaubari Syaubari
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan (June, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i1.15441

Abstract

The performance and characterization of biodegradable plastic from tapioca starch was studied. Modified the chitosan was one of the ingredients for produce the biodegradable plastics. The produced biodegradable polastic were thin sheet plastic, elastic and transparent. The biodegradable plastic performance had tensile strength between 2,26-3.73 Mpa, elongation ranges from 17.24 to 76.76%, and water absorption ranges from 30.81-268.9%. In antioxidant analyze, apples are wrapped in plastic and had significant mechanical properties changes on 8th day.Morphology scanning result showed that in the chitosan-polyNIPAM there were no cavities may caused high hydrophilicity in the biodegradable plastic.
Co-Authors Abdullah Abdullah Agam Muarif Ahmad Fikri Ananda, Aldila Andriansyah Andriansyah Asmadi, Didi Asri Gani Aula Chairunnisak Azwar Darmadi Darmadi Dewi Oetary DS, Syahiddin Edi Munawar Eko Suhartono Fauzan Al Chalifa Ghazi Mauer Idroes Hasanuddin, Iskandar Hidayaturrahmi, Hidayaturrahmi Hisbullah Hisbullah Isna Safitri Izarul Machdar Izarul Machdar Jalalul Akbar, Said Juwita Juwita, Juwita Kasturi Kasturi, Kasturi Khairan Khairan Lia Ernita Mirna Rahmah Lubis Mubarak Mubarak Muhamad Dani Supardan Muhammad Subhan Mukhlishien Mukhlishien, Mukhlishien Mukramah Mukramah Mukramah Yusuf Mukramah Yusuf Wahab Mulyati, Sri Nasrul Arahman Nasrul Arahman Nasrul Arahman Nissa Prasanti Novi Sylvia Prasetio, Rasi Rahayu Retnowulan, Sri Ridwandi Rozanna Dewi Safitri, Isna Sentia, Prima Denny Sri Rahayu Retnowulan Sri Rahmawati Suhendrayatna Suhendrayatna Syahiddin DS Syamsul Arifin Syaubari Syaubari Syaubari syaubari Syawaliah Muchtar Umi Fathanah Yuanda Wattimena Yulia Hayati Zuhri, Sarika Zulnazri, Z