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Ety Jumiati
Department of Physics, Universitas Islam Negeri Sumatera Utara, Deli Serdang 20353, Indonesia
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Reducing free fatty acid and peroxide levels in refining used cooking oil made from activated carbon from Barangan banana peels Dian Frasisca; Ety Jumiati; Masthura Masthura
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.21.2.155-158

Abstract

Everyday life requires a food processing component known as cooking oil. Repeated use of cooking oil can reduce its quality and cause it to have high levels of free fatty acids and peroxides. The purpose of this study was to find out how to purify cooking oil using activated carbon made from Barangan banana peels to reduce the amount of free fatty acids and peroxide value. The activated carbon samples used in this study were sample A (5.5 g), sample B (10.5 g), and sample C (15.5 g). Sample C with 15.5 g of activated carbon had a free fatty acid test result of 0.16% and a peroxide number of 3.91 mek O2/kg which was the best result in this study, and was in accordance with SNI 01-7709-2019.
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.
Co-Authors Arif Amri Panggabean Dian Frasisca Masthura Masthura Mella Yolanda Alfika Miftahul Husnah Ridwan Yusuf Lubis