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All Journal G-Tech : Jurnal Teknologi Terapan
Novel Karaman
Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Pembuatan Tembaga Sulfat dari Limbah Padat Tembaga dengan Proses Kristalisasi Panas Lailly Amaretha Kusuma Wardhani; Tiffanie Dewi Arifilla; Novel Karaman
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4680

Abstract

The content of this article aims to determine the value of the best crystal formation by hot crystallization using Response Surface Methodology with the Composite Central Design (CCD) method, then the crystals are identified using XRF (X-Ray Fluorescence) analysis. The hot crystallization method at a temperature of 90°C with a stirring speed of 500 rpm was used with variations in reaction time and sulfuric acid concentration. The reaction times used were 50, 55, 60, 65, and 70 minutes, and the sulfuric acid concentrations were 10%, 12%, 14%, 16%, and 18%. The highest mass of copper sulfate crystals obtained was 5.3908 grams with a reaction time of 70 minutes and a sulfuric acid concentration of 18%, with the highest chemical element in the crystal being Cu at 76.06%.
Briket Arang dari Limbah Tempurung Kemiri dan Serbuk Gergajian Kayu Sengon dengan Perekat Arpus (Gum Resin) Menggunakan Proses Karbonisasi Raffi Abimanyu; Farhan Muhammad Zuhdi; Mutasim Billah; Novel Karaman; Caecilia Pujiastuti
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4831

Abstract

The type of alternative energy that can be used to replace non-renewable energy is biomass. Researchers will focus on making biomass, namely making charcoal briquettes from candlenut shell waste and wood sawdust, where these two basic materials have very good potential to be used as basic materials for making charcoal briquettes. Each material is carbonized to become charcoal. The carbonized charcoal is uniform in size to 60 mesh. Candlenut shell charcoal and sawdust charcoal are mixed in a ratio of 9:1, 8:2, 7:3, 6:4, 5:5 and arpus adhesive 7, 9, 11, 13, 15 grams. The briquette samples are molded and dried. The research results obtained the highest fixed carbon value from a 9:1 composition with 15gram adhesive of 73.77% and a calorific value of 5375.25 cal/g. These results have met quality standards according to SNI No.1/6235/2000.
Co-Authors Caecilia Pujiastuti Farhan Muhammad Zuhdi Lailly Amaretha Kusuma Wardhani Mutasim Billah Raffi Abimanyu Tiffanie Dewi Arifilla