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All Journal Jurnal Masyarakat Indonesia Journal of Green Science and Technology
Yohana Fransiska Ferawati
Politeknik Negeri Bandung
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Transportation

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Enhancement Of Salt Quality with Recrystallization Method from Crude Salt Raw Material on a Laboratory Scale Joko Suryadi; Saifa Haikal Witcaksono; Putri Widad Salsabila; Eko Andrijanto; Yohana Fransiska Ferawati; Retno Dwi Jayanti; Kardian Rinaldi; Haryadi Haryadi
Journal of Green Science and Technology Vol 9 No 3 (2025): Journal of Green Science and Technology Vol. 9 No. 3 December 2025 Special Editio
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i3.10609

Abstract

Indonesia has significant maritime potential, particularly in salt production. However, national salt production has not yet met domestic demand, especially for industrial-grade salt, which requires a minimum NaCl content of 97%. Crude salt produced using traditional methods often contains only 88-94% NaCl and includes impurities such as Ca, Mg, and sulfate. This research aims to produce recrystallized salt that meets industrial standards and to determine the optimal conditions in a laboratory-scale simulator. The experimental method was conducted by simulating evaporation on a recrystallization table. Salt solutions were prepared from crude salt with varied concentrations of 22%, 25%, and 30%. The observed parameters included solution density, evaporation rate, and the content of NaCl, total hardness, and sulfate in the salt product. The results showed that recrystallization significantly increased the NaCl content and reduced impurities. Optimal conditions were achieved with a 22% salt solution, where crystal formation produced recrystallized salt with an NaCl content of 99.33%, total hardness of 0.47%, and sulfate content of 8.56 ppm. This quality has the potential to meet industrial salt standards. This study can serve as a reference for industrial salt production on a larger scale.
Pembudidayaan Sayur dengan Metode Nutrient Film Technique (NFT) di SMAN 1 Plered Joko Suryadi; Kardian Rinaldi; Yohana Fransiska Ferawati; Gustin Mustika Krista; Retno Dwi Jayanti
Jurnal Masyarakat Indonesia (Jumas) Vol. 5 No. 2 (2026): Jurnal Masyarakat Indonesia (Jumas)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jumas.v5i2.291

Abstract

This community service activity supports the implementation of the Program Proyek Penguatan Profil Pancasila (P5) on the theme of food security at SMAN 1 Plered. The main problem was that the partner's conventional cultivation was inefficient and not integrated as a learning tool for the P5 program. The solution provided was the training and installation of a vegetable cultivation system using the Nutrient Film Technique (NFT) method. A portable 50-hole NFT system was successfully installed after a trial yielded 941.19 grams of water spinach in 21 days. The training was met with high enthusiasm, with 89.5% of participants interested in continuing this method.
Co-Authors Andrijanto, Eko Gustin Mustika Krista Haryadi Haryadi Jayanti, Retno Dwi Kardian Rinaldi Putri Widad Salsabila Saifa Haikal Witcaksono Suryadi, Joko