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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Komunikasi Fisika Indonesia Jurnal Teknosains Jurnal Fisika Unand JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX ZERO : Jurnal Sains, Matematika dan Terapan Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Redoks Zero : Jurnal Sains, Matematika, dan Terapan JISTech (Journal of Islamic Science and Technology) Fisitek : Jurnal Ilmu Fisika dan Teknologi JURNAL PENDIDIKAN TAMBUSAI JOURNAL OF SCIENCE AND SOCIAL RESEARCH Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Jurnal Elemen Jurnal Kumparan Fisika Pascal: Journal of Physics and Science Learning Jurnal Fisika dan Terapannya Navigation Physics : Journal of Physics Education Mimbar Kampus Journal of Technomaterial Physics Jurnal Energi Baru dan Terbarukan CHEDS: Journal of Chemistry, Education, and Science Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) EINSTEIN (E-JOURNAL) Jurnal Ilmu dan Inovasi Fisika
Ety Jumiati
Universitas Islam Negeri Sumatera Utara
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology 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 Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Production of activated charcoal from sugarcane bagasse using physical activation Mella Yolanda Alfika; Ety Jumiati; Miftahul Husnah
Indonesian Physics Communication Vol 21, No 2 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.2.179-182

Abstract

Activated carbon is a material containing 85% – 95% carbon elements and is a porous solid. This activated carbon is the result of heating materials containing carbon at high temperatures but not oxidized. In this study, the material used is sugarcane bagasse, and its activator is NaOH. The purpose of this research is to examine the production of Activated Carbon from Sugarcane Bagasse with different concentrations of NaOH activator, analyze the moisture content, ash content, volatile matter content, and fixed carbon content. Carbonization is carried out using a furnace at a temperature of 500°C for 1 hour. Carbon activation is done using NaOH solution with concentrations of 0.3%, 0.5%, and 0.7%. Irradiation is done using a microwave with a power of 630 Watts for 20 minutes. The results of this study indicate that the NaOH concentration affects some characteristics of the activated charcoal produced from sugarcane bagasse. A NaOH concentration of 0.7% produces activated charcoal with the best characteristics, with a moisture content of 3.1%, volatile matter content of 20.4%, total ash content of 5.9%, and carbon content of 62.2%.
The effect of variations in corncob activated carbon filter media with zeolite in digging well water purification Ridwan Yusuf Lubis; Ety Jumiati; Arif Amri Panggabean
Indonesian Physics Communication Vol 21, No 2 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.2.165-170

Abstract

Water is the most important element in human life, because almost all human activities require water, especially clean water which has a main function that cannot be replaced by other compounds. The aim of this research was to determine the quality of dug well water after the filtering process using corncob activated carbon and zeolite, as well as to find out which variations are optimal for obtaining clean water according to the Republic of Indonesia Minister of Health Regulation No. 32 of 2017. The strategy used to obtain clean water is the filtration technique. by organizing zeolite and activated carbon. The samples used came from Bandar Setia Village, Percut Sei Tuan District, Deli Serdang Regency, North Sumatra Province. Activated carbon is made from corn cobs which are activated with a 10% H3PO4 solution for 24 hours. The composition of the purification system is varied into three, variation A is zeolite 75% and active carbon 25%, variation B is zeolite 50% and active carbon 50%, and variation C zeolite 25% and active carbon 75%. The greatest variation in reducing parameters in dug well water is variation A with a turbidity value of 3.7 NTU, Mn of 0.011 mg/l and KMnO4 of 5.8 mg/l. It can be explained that the results of this test are in accordance with clean water standards based on the PERMENKES Republic of Indonesia No. 32 of 2017. The results of this research that are most optimal in reducing parameters in dug well water are variation A.
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 PENYERAPAN AIR DAN POROSITAS PADA KERAMIK BERPORI BERBAHAN CLAY DAN PUNTUNG ROKOK Nasution, Annisa Salsha Safira; Jumiati, Ety; Husnah, Miftahul
Jurnal Energi Baru dan Terbarukan Vol 5, No 1 (2024): Maret 2024
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2024.20664

Abstract

Keramik berpori adalah suatu keramik yang mempunyadistribusi ukuran tertentu dan porositas yang relatif tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh bahancampuran puntung rokok pada sifat fisis keramik berpori. Variasi komposisi campuran puntung rokok dan clay  antaralain sampel A sebesar (20%;80%), sampel B sebesar(30%;70%), dan sampel C sebesar (40%;60%). Denganpengujian sifat fisis yaitu penyerapan air dan porositas. Sifatfisis yang sudah diuji diperoleh nilai rat-rata adalah15,14%-22,82%. Pada porositas diperoleh nilai rata-rata adalah 9,59%-12,76%. Hasil pengukuran penyerapan air, dan kuat tekan sudah sesuai dengan nilai SNI 8640:2018 tentang standar mutu bata ringan dengan pasang dinding. Variasi pencampuran yang paling optimum diperoleh padasampel C 40%;60% dengan nilai penyerapan air yaitu22,82% dan porositas yaitu 11,88% 
EFEKTIVITAS BRIKET KULIT PINANG TERHADAP PENURUNAN NILAI KADAR AIR DAN NILAI DENSITAS Rani Saputri; Jumiati, Ety; Sirait, Ratni
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 2 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i2.267

Abstract

Utilization of briquettes as an alternative biomass energy source is possible. Biomass is a renewable energy source that is becoming increasingly important throughout the world. This has the potential to reduce human dependence on fossil fuels. This research aims to determine the effectiveness of reducing the water content and density values of areca nut shell briquettes. The raw materials used in making briquettes are areca nut shells and arpus adhesive, with each percentage of material and adhesive composition, namely sample A (55% : 45%), sample B (60% : 40%), sample C (65% : 35%), and sample D (70% : 30%). The results of this research obtained a water content value of 6.36% - 4.82% and a density value of 0.534 g/cm3 - 0.599 g/cm3. This water content value meets SNI 01-6235-2000 regarding wood charcoal and these briquettes are suitable to be used as a substitute for charcoal on a household scale.
PENINGKATAN KUALITAS NILAI KADAR AIR DAN KADAR ZAT TERBANG PADA SERBUK KARBON AKTIF TEMPURUNG KELAPA DENGAN VARIASI SUHU AKTIVASI Siti Putri Masyitah; Jumiati, Ety; Sirait, Ratni
ELEMEN : JURNAL TEKNIK MESIN Vol. 10 No. 2 (2023)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v10i2.268

Abstract

This research aims to determine the characteristics of coconut shell activated carbon in powder and granular form using quantitative methods. Making activated carbon consists of preparation, carbonization and activation. Then the physical properties were tested and the analysic. Actived carbon is made through a carbonization stage at a temperature of 400°C for 2 hours and activation at a temperature of 800°C, 900°C, and 1000°C for 1 hour. The parameters used are air content and volatile substance content with active carbon quality requirements based on SNI No. 06-3730-1995. The research results showed that the best quality powdered activated carbon at a temperature of 1000°C with an air content of 6.4% and a volatile matter content of 15.2%
Pengaruh Nilai Uji Tarik Terhadap Kuat Impak pada Komposit Serat Daun Nanas Hutauruk, Siti Aulia; Jumiati, Ety; Daulay, Abdul Halim
Rekayasa Material, Manufaktur dan Energi Vol 7, No 2: Juli 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i2.20288

Abstract

Research has been conducted to determine the effect of tensile test values on impact strength. Using an experimental method and a quantitative approach, the variations in the composition of pineapple leaf fiber with polyester resin adhesive are as follows: sample A (40%:60%), sample B (45%:55%), sample C (50%:50%), and sample D (55%:45%). The molding process used a hot press with a pressure of 0.1 MPa and a temperature of 150°C for 15 minutes. The preparation and testing of specimens referred to ASTM D638-03 for tensile testing and ASTM D6110-10 for impact testing. The tensile test results were 24.71 MPa for sample A, 25.97 MPa for sample B, 26.00 MPa for sample C, and 20.73 MPa for sample D. The impact strength results were 0.02779 J/mm² for sample A, 0.02997 J/mm² for sample B, 0.03044 J/mm² for sample C, and 0.0306 J/mm² for sample D. The experiment showed that as the tensile test values increased, there was an effect on the impact strength results..
Karakterisasi Pasir Besi dan Sifat Magnetik Pantai Romantis Kabupaten Serdang Bedagai Khairunnisa, Umi Khairunnisa; Lubis, Ridwan Yusuf; Jumiati, Ety
SAINTIFIK Vol 10 No 2 (2024): Saintifik: Jurnal Matematika, Sains, dan Pembelajarannya
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/saintifik.v10i2.505

Abstract

Karakterisasi pasir besi dan sifat magnetik di Pantai Romantis merupakan bagian penting dari perlindungan lingkungan. Tujuan penelitian ini untuk mengetahui karakterisasi pasir besi dan Sifat Magnetik daerah Pantai Romantis Kabupaten Serdang Bedagai. Suhu yang diberikan pada treatment panas menggunakan oven pada suhu 500 oC dan 600 selama 3 jam dan treatment panas matahari yaitu dijemur di bawah sinar matahari selama 10 jam pada suhu cuaca sekitar 31oC selama 2 hari. Menggunakan X-ray fluorescence (XRF), Scanning electron microscopy (SEM). Menggunakan Origin dan Digimizer untuk menganalisis data pada pasir besi. Hasil analisis yang didapat bahwa pasir besi didominasi oleh besi oksida (Fe2O3) dengan persentase sekitar 75,18% menunjukkan bahwa treatment oven pada suhu yang lebih rendah memiliki kecenderungan untuk meningkatkan konsentrasi Fe2O3. Tingginya kandungan besi menandakan bahwa pasir besi memiliki potensi ekstraksi besi yang sangat signifikan, menjadi sumber bahan baku penting dalam industri logam. Pada suhu 600°C komposisi mineral pasir besi relatif stabil, meskipun terjadi variasi kecil pada beberapa senyawa mineral akibat pemanasan.
PENGARUH NILAI KADAR AIR TERHADAP NILAI KALOR PADA BRIKET ARANG KULIT DURIAN Jumiati, Ety
EINSTEIN (e-Journal) Vol 7, No 3 (2019): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/eins.v7i3.54688

Abstract

Briket arang merupakan bongkahan arang yang dapat dijadikan bahan bakar alternatif. Tujuan penelitian yaitu untuk mengetahui pengaruh nilai kadar air terhadap nilai kalor briket arang kulit durian. Penelitian ini menggunakan bahan kulit durian dan tepung tapioka sebagai perikat dengan variasi  komposisi yaitu sampel A (70% : 30%), sampel B (65% : 55%), dan sampel C (60% : 40%). Parameter uji yaitu uji nilai kadar air dan uji nilai kalor. Hasil pengujian briket arang kulit durian menghasilkan nilai kadar air senilai 0,969-1,055%, dan nilai kalor senilai 21,659-37,986 cal/g yang telah memenuhi standar mutu briket Indonesia sehingga briket arang yang diperoleh ini dapat dimanfaatkan dan dipakai dalam kehidupan sehari-hari.
Co-Authors ., Masthura Abdul Halim Daulay Adiani Nasution, Arfa Afifah Azmi Aiysah Hannum Pulungan Ananda Tira Septiana Sari Ananda, Putri Dwi Arif Amri Panggabean Armais Mutiah Abdul Hidayat Aruan, Ririn sagita asnitha aritonang Asyari, Auly - Ayu Amalya Rahma Ayu Dwi Retno Azmi, Afifah Bayu Anugrah KS Br Lubis, Lailatul Husna Dian Frasisca Dika Prananda Dimas Pratama, Dimas endang sagita ritonga Ervina Putri Wulandari Fazira, Natasya Aulia Harahap, Nurlaila Sari Harahap, Sarah Aprilia Hayat, Lisa Fadhilah Husna Br. Lubis, Lailatul Husnah, Miftahul - Hutauruk, Siti Aulia Ismail Husein, Ismail Khairunnisa, Umi Khairunnisa khofifah khofifahparawansyah Kiki Noviansyah Lubis, Fadilah Azzahra Masthura Masthura, Masthura Masthura, Masthura Masturah Masturah Mella Yolanda Alfika Meutia Nanda Miftahul Husnah Miftahul Husnah Miftahul Husnah Mughiroh, Hafizul Mulia Ningsih Nabilah, Cinthia Farah Nanda Putri Afrilda Nanda, Meutia Nasution, Annisa Salsha Safira Nasution, Annisa Wulan Dhari Nasution, Nazaruddin Nazaruddin Nasution Nia Soraya Niken Ayu Ningsih, Mulia Nita Zahara Nasution Noviansyah, Kiki Nujulia Subuharni Nur Ainun Munthe Nur Aisah Sagala Nur'aini Fadillah Nurfebia, Karina Nurhayati Nurhayati Nurlaila Sari Harahap Pratiwi, Pebi Ajeng Putri Indah Sari Putri Nadila Rachmaini, Alya Rahmad Rani Saputri Ratni Sirait Ratni Sirait Ratni Sirait Ratni Sirait, Ratni Riadina Siregar Ridwan Yusuf Lubis Ridwan Yusuf Lubis Rika Ramtika Rika Safitri Ririn sagita Aruan Rizki Qorina Safina, Nurul Sandi Tri Febriani Sari, Devi Kumala Sariah, Jati Nur Silalahi, Homsiah Mayang Sari Siti Munawaroh Siti Munawaroh Siti Putri Masyitah Siti Rahma Daulay Sonia Tampubolon Srg, Dini Anggraini Sri Ayu Lestari Sri Wahyuni Ritonga Suci Amanda Suci Sulkha, Amalia Sunny Nafisah Tambunan, Efrida Pima Sari Tia Rahmadani Tiara, Finky Manda Titi Winda Sari Tri Ninda Malika ufik eliati tumanggor Umairoh, Ninda