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All Journal JOURNAL ONLINE OF PHYSICS Jurnal Redoks JISTech (Journal of Islamic Science and Technology) Fisitek : Jurnal Ilmu Fisika dan Teknologi Jurnal Fisika dan Terapannya EINSTEIN (E-JOURNAL)
Ety Jumiati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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Pengaruh Penurunan Nilai Kadar Abu Terhadap Nilai Kadar Zat Menguap Pada Briket Kulit Jengkol: The Effect of Decreasing Ash Content Value on Vaporized Substance Content Value of Jengkol Skin Briquettes Fazira, Natasya Aulia; Masthura; Ety Jumiati
JFT : Jurnal Fisika dan Terapannya Vol 10 No 2 (2023): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this research is to make briquettes of jengkol skin waste using sago starch adhesive so that it is known to reduce the value of ash content to the value of volatile matter content. The ratio of jengkol skin waste charcoal to sago starch glue used in this study ranged from sample A 65:35, B 70:30, C 75:25, D 80:20. The concentration of ash and volatile chemicals were among the variables analyzed. Sample D, containing 80% jengkol skin charcoal and 20% sago adhesive, performed best in terms of ash content (5.99%) and volatile matter content (4.03%) when tested as a charcoal briquette composition. SNI 01-6235-2000 which is the standard for wood charcoal briquettes has been fulfilled by the briquettes. Keywords: Jengkol Skin, Charcoal Briquettes, and Sago Flour.
Pengaruh Komposisi Penambahan Limbah Plastik LDPE dan Serbuk Sabut Kelapa Terhadap Nilai Densitas dan Kuat Tekan Batako Ringan Safina, Nurul; Ety Jumiati; Miftahul Husnah
JFT : Jurnal Fisika dan Terapannya Vol 10 No 2 (2023): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v10i2.41494

Abstract

Research has been carried out which aims to determine the characteristics of lightweight bricks from LDPE plastic waste and coconut fiber powder produced. Variations in the composition of LDPE plastic and coconut fiber powder are 5%:35%, 10%:30%, and 15%:25% with a water cement factor (FAS) value of 0.5 using a hot press machine with a room temperature of 32°C. There is an effect of adding LDPE plastic waste and coconut fiber powder to lightweight bricks. The results of testing brick samples with a variation of 5%:35% produced a density value of 1,316 kg/m3 and produced a compressive strength value of 6.16 MPa which is included in the IA quality level and can be applied as a structural brick for walls exposed to the environment (outdoor). and others who do not bear the heavy loads specified by the SNI 8640:2018 standard..
Pengaruh Penambahan Karbon Aktif Biji Durian Terhadap Penurunan Nilai Kadar Air Dan Asam Lemak Bebas Pada Minyak Jelantah Armais Mutiah Abdul Hidayat; Abdul Halim Daulay; Ety Jumiati
Jurnal Redoks Vol. 9 No. 1 (2024): REDOKS JANUARI - JUNI
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v9i1.14551

Abstract

Reaksi penggunaan minyak jelantah secara berulang-ulang dapat ditanggulangi dengan cara adsorbsi pada minyak jelantah yaitu pemurnian pada minyak, maka dari itu bahan yang digunakan untuk pemurnian tersebut dilakukan menggunakan dari bahan biji durian sebagai karbon aktif. Penelitian ini dilakukan untuk mengetahui kadar air dan asam lemak bebas pada minyak jelantah menggunakan bahan karbon aktif biji durian untuk mendapatkan kualitas minyak jelantah berdasarkan SNI 7709-2019. Karbon aktif dapat digunakan untuk pemurnian minyak, menyerap suspensi koloid dan mengurangi jumlah peroksida yang tercipta selama pengurangan minyak. Variasi komposisi karbon aktif biji durian pada sampel A (20gram), sampel B (25gram), dan sampel C (30gram). Media pemurnian menggunakan kertas whatman 42, dengan waktu penyaringan selama 2 hari. Metode penelitian ini dilakukan dengan menggunakan metode eksperimen melalui pendekatan secara kuantitaif. Hasil penelitian menunjukkan bahwa pemurnian yang optimal yaitu pada sampel C dengan penurunan nilai kadar air sebesar 0,01% dan asam lemak bebas sebesar 0,01% yang sesuai dengan perbandingan SNI 7709-2019 tentang minyak goreng.
Co-Authors Abdul Halim Daulay Armais Mutiah Abdul Hidayat Fazira, Natasya Aulia Masthura Masthura, Masthura Miftahul Husnah Nazaruddin Nasution Nia Soraya Niken Ayu Nur Ainun Munthe Nurhayati Nurhayati Rahmad Ratni Sirait Rika Ramtika Safina, Nurul Tri Ninda Malika