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All Journal REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment
Luthfi , Muhammad Zulfikar
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Economics, Econometrics & Finance Energy Environmental Science Industrial & Manufacturing Engineering

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Pengolahan Limbah Cair Industri Tahu Menggunakan Teknologi Ultrafiltrasi Dengan Sistem Monitoring Berbasis Internet of Things N. H, Harmiwati; Yahya, Agung Kurnia; Luthfi , Muhammad Zulfikar; Nurmalasari , Enny; Permadani , Resi Levi; Aini , Apsari Puspita; Rahayu , Puji
Journal of Industrial Community Empowerment Vol. 3 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v3i1.253

Abstract

Waste from the tofu industry is a byproduct of the tofu production process that can have negative environmental impacts if not managed properly. CV. Dapur Tahu still discharges liquid waste directly into the river, posing a potential threat of river water pollution. Although a new reservoir and waste disposal channel are under construction, there is currently no effective waste treatment facility in place. To address this issue, a tofu wastewater treatment facility utilizing filtration technology is proposed due to its simplicity of operation, durability, and high efficiency in removing organic contaminants. The technology comprises a multi-stage filtration process involving sand filters (pumice, zeolite, and activated charcoal) combined with ultrafiltration membrane technology, complemented by a monitoring system consisting of TDS, pH, and temperature sensors. The multi-stage filtration process is capable of reducing TDS levels to 160 ppm, resulting in visibly clearer wastewater compared to the initial turbid white condition. The installation of IoT-based monitoring devices in the wastewater treatment process significantly aids in real-time water quality monitoring, accessible via mobile phone screens.
Ekstraksi Minyak Gaharu dengan Pelarut Etanol secara Maserasi Luthfi , Muhammad Zulfikar; Jerry , Jerry
REACTOR: Journal of Research on Chemistry and Engineering Vol. 2 No. 2 (2021)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/

Abstract

Agarwood is one of the forest products that can be utilized and has a high selling value. Agarwood contains essential oils which have many active compounds and contains a specific aromatic resin that is naturally formed as a form of defense against physical damage or microbial infection. Agarwood essential oil with good quality has a high economic value. This study aims to extract agarwood essential oil using ethanol as a solvent. The optimal yield of agarwood essential oil can be obtained by varying the particle size, the ratio of the weight of the agarwood biomass (kg) to the volume of the solvent (L), and the length of maceration (h). The results showed that the particle size of agarwood did notaffect the yield of agarwood essential oil. The results of the comparison of agarwood biomass with the volume of the solvent showed that the ratio of 1:9 (w/v) obtained the highest yield of 4.02% and the longest maceration time with the highest yield of 4.12% for 72 hours. However, 48 hours of maceration had a greater increase in yield compared to 72 hours of maceration. The increase in yield at 48 hours to 72 hours of maceration was only 0.22% when compared to the increase in yield at 24 hours to 48 hours of maceration, which was 0.56%.
Co-Authors Aini , Apsari Puspita Jerry , Jerry N. H, Harmiwati Nurmalasari , Enny Permadani , Resi Levi Rahayu , Puji Yahya, Agung Kurnia