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All Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Kimia USU
Seri Maulina
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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Parameter Biokinetika dari Degradasi Limbah Kol dan Tomat Menggunakan Sistem Bioreaktor Anaerobik Maya Sarah; Erni Misran; Seri Maulina; Ika Pertiwi; Nahlionny Ritman; Isti Madinah Hasibuan; Ihut Parulian
Jurnal Teknik Kimia USU Vol. 10 No. 2 (2021): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.813 KB) | DOI: 10.32734/jtk.v10i2.5642

Abstract

The world's energy supply is very dependent on non-renewable energy in the form of fossil fuels. This causes fossil fuels depletion and the need for alternative energy sources such as biogas. Biogas is produced from the fermentation process of organic matter with the help of anaerobic bacteria in free oxygen absence. This study aims to produce biogas from cabbage and tomato waste separately. Biogas production was carried out by varying feed concentrations of 100 g/L, 200 g/L, and 300 g/L for cabbage waste and 81.6 g/L; 215 g/L; and 237 g/L for tomato waste. This study consisted of 10 days seeding and acclimatization process, followed by a start-up stage using insulated anaerobic bioreactors. The largest methane from cabbage and tomato waste was 60% at a feed concentration of 200 g/L and 50% at a feed concentration of 237 g/L, respectively. The maximum growth rates (µm) for biogas from cabbage and tomato waste were 0.122 day-1 and 0.121 day-1, respectively.
Empowerment of Housewives Through Shibori Weaving Skills and Upgrading Knowledge Related to Dyes and Their Wastes Erni Misran; Maya Sarah; Seri Maulina
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 1 (2023): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v8i1.9291

Abstract

LKP Girly Mode is one of the non-formal educational institutions in the field of sewing skills. This LKP personnel has skills in making shibori tie dye weaving, but still has limitations in coloring and advanced techniques. Shibori is one of dyeing textile techniques that produce fabrics with various colors and patterns. On the other hand, there are many housewives who depend their family income only on their husbands and need skills that are useful to improve family welfare. The community service team of USU has provided 1 unit of obras machine and 2 additional units of sewing machine to LKP Girly Mode. The team has also carried out a workshop to improve the skills of 12 housewives around the LKP. They were trained to make patterned fabrics using the shibori tie dye technique which were then sewn to produce pillowcase products. The sewing machines that have been handed over, directly used at the workshop and useful to support the operational activities of partners. The results of the training are expected to improve skills that support the empowerment of housewives. In the workshop, the Team also introduce about dyes and simple handling of its waste. The team then treated the remaining fabric dye solution so that a clear solution was obtained that was safely discharged into the water without polluting the environment.
Co-Authors Ihut Parulian Ika Pertiwi Isti Madinah Hasibuan Maya Sarah Misran, Erni Nahlionny Ritman