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Pemanfaatan Tandan Pisang Kepok sebagai Sumber Alkali pada Pembuatan Sabun Cair Reny Elvira Amelia; Rosdanelli Hasibuan; Irvan
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.5383

Kepok banana bunches were used as a source of natural alkali in the study of determining the ratio of coconut oil and palm oil in the saponification process using banana bunch ash. Alkali is obtained from the calcination process with variations in temperature of 400 °C, 500 °C, 600 °C, and 700 °C for 4 hours. Characterization of potassium from Kepok banana bunch ash using Atomic Absorption Spectrophotometer resulted in the highest potassium being 58.41% at 600 °C. The potassium obtained is used as a source of alkali in the saponification process of liquid bath soap. In this study, variations in the amount of alkali (30%, 40%, 50%, and 60%), the ratio of coconut oil and palm oil (60:40, 70:30, 80:20, and 90:10 (w/w)) with reaction times were carried out 2.5 hours, 3 hours, and 3.5 hours. The best liquid bath soap was obtained at a ratio of 70:30 (w/w) coconut oil and palm oil and 30% alkali with a reaction time of 2.5 hours which was 81.34%.

Pengaruh Suhu dan Waktu Pirolisis terhadap Karakteristik Arang dari Tempurung Kelapa Rosdanelli Hasibuan; Hans Martua Pardede
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.8534

The increased production of coconut has increased by the shell produced, even though this coconut shell has lignin content of 33.30% so it has the potential to be converted into charcoal through the pyrolysis process. Pyrolysis is a thermal decomposition process that occurs without air or with little air to convert biomass into charcoal. Coconut shell charcoal can be used for coal co-firing in developing new and renewable energy. This study aimed to obtain the best pyrolysis temperature and time in the manufacture of high-calorific value coconut shell charcoal in accordance with SNI 06-4369-1996. Coconut shell pyrolysis was carried out at temperatures of 350 °C, 450 °C and 550 °C and pyrolysis times of 2 hours, 3 hours and 4 hours. The results showed that charcoal with the highest calorific value was produced at a temperature of 450 °C and a pyrolysis time of 3 hours. The resulting charcoal had calorific value of 7,750.96 cal/g, yield of 30.10%, and contained 2.75% water, 2.70% ash and 9.50% volatile matter.

Pengaruh Komposisi Bahan Baku dan Ukuran Partikel Terhadap Kualitas Biobriket dari Cangkang Buah Karet dan Ranting Kayu Iriany; Rosdanelli Hasibuan; Dian Novita; Nisa’a Mufidatul Ummah
Jurnal Teknik Kimia USU Vol. 12 No. 1 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i1.9818

Biobriquette is a solid fuel derived from raw materials that can be renewed continuously because it is made from a mixture of biomass such as wood, twigs, leaves, grass, straw and other agricultural wastes. The research aims to examine the effect of variations in the composition of raw materials and particle sizes were 50 mesh, 70 mesh, 100 mesh, and 120 mesh. This research was started by carrying out the pyrolysis process on the raw material with temperature 350 oC for sixty minutes, then the refined pyrolysis charcoal powder was mixed with starch adhesive 10% of the weight of the raw material which was then manually pressed cylindrical. The measurement results in this research were compared with quality parameters based on Indonesian National Standard (SNI), Japan, England, and America. The best result for this research is obtained at a ratio of rubber fruit shells and wood twigs 1:5 with a particle size of 100 mesh, that is with inherent moisture of 4.50%, ash content of 2.19%, volatile matter of 13.73%, density 2.2502 g/cm3, and caloric value 6,653.60 cal/g.

PENGEMBANGAN EKOWISATA BERBASIS SIAGA BENCANA DI DESA NAMO SIALANG KECAMATAN BATANG SERANGAN KABUPATEN LANGKAT Buchari Buchari; Suri Mutia Siregar; Rosdanelli Hasibuan
Prosiding COSECANT : Community Service and Engagement Seminar Vol 1, No 2 (2021)
Publisher : Universitas telkom

Kegiatan Pengabdian pada Masyarakat di Kawasan Ekowisata Tangkahan Kabupaten Langkat ini bertujuan untuk meningkatkan pengetahuan, keterampilan dan sikap pada Tim SAR Kawasan Ekowisata Tangkahan guna terwujudnya penyelenggaraan operasi SAR yang efektif dan efesien melalui latihan Penyelamatan Korban di Air, Bantuan Hidup Dasar (BHD), Siaga Bencana, Latihan Operasi SAR, Penyusunan Kebijakan Teknis, Pengarahan Potensi, Pengendalian dan Evaluasi Pelaksanaan Operasi SAR Kawasan Ekowisata Tangkahan Desa Namo Sialang Kecamatan Batang Serangan Kabupaten Langkat. Tim SAR Kawasan Ekowisata Tangkahan ini belum pernah mendapat pelatihan kesiapsiagaan terhadap bencana seperti Latihan Penyelamatan Korban di Air dan Bantuan Hidup Dasar (BHD) pada korban tenggelam dan hanyut di sungai. Peralatan berstandar yang digunakan untuk penyelamatan korban juga belum tersedia. Peringatan kepada pengunjung akan terjadinya banjir pun juga masih dilakukan dengan teriakan oleh Tim SAR (secara manual). Melalui kegiatan Pengabdian pada Masyarakat ini kepada SAR Ekowisata Tangkahan Kabupaten Langkat, telah diberikan pelatihan yang bekerjasama dengan Badan Penanggulangan Bencana Daerah (BPBD) dan Dinas Kesehatan Kabupaten Langkat tentang Penyelamatan Korban di Air dan Bantuan Dasar Hidup (BHD) pada korban tenggelam dan hanyut di sungai. Disediakan 6 titik jalur evakuasi dari tempat wisata (rawan bencana) menuju ke tempat yang lebih tinggi dan 1 titik kumpul yang aman dari banjir bandang (bencana). Hal ini penting bagi kawasan ekowisata mempunyai jalur evakuasi yang dibuat berdasarkan pertimbangan-pertimbangan keselamatan (safety) agar pengunjung yang sedang berwisata merasa aman dari bahaya.

Pengaruh Kondisi Operasi terhadap Karakteristik Pengeringan Jahe Merah (Zingiber officinale Var. Rubrum) Menggunakan Tray Dryer dengan Udara Panas dari Proses Pirolisis Rosdanelli Hasibuan; Hamdanah Hasibuan; Yovani Nissi Madani; Viqry Pramananda; Risma Fazillah; Vikram Alexander
Jurnal Teknik Kimia USU Vol. 12 No. 2 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i2.11496

Red ginger (Zingiber officinale Var. Rubrum) is a rhizome plant often used as a complementary spice, a mixed ingredient in the food and beverages, and herbal medicines. One of the post-harvest processing of red ginger is drying, which aims to reduce the water content of red ginger to a point where the growth of microorganisms and the activity of enzymes that can damage red ginger can be prevented. This study aims to evaluate the effect of tray height and drying air temperature on moisture content, drying rate, drying characteristics, and quality of red ginger dried using a tray dryer with hot air from a biomass pyrolysis process. The results showed that both tray height and drying temperature affected red ginger's water content and drying rate. The quality of red ginger that complies with SNI 1-3393-1994 was obtained at a tray height of 60 cm and a drying temperature of 70 Â°C, with distinctive aroma and taste characteristics, the water content of 8,9%; ash content of 5,5%; oil content of 4,93 mL/100 g; and no fungus on the red ginger.

Pengaruh Kondisi Operasi terhadap Karakteristik Pengeringan Jahe Merah (Zingiber officinale Var. Rubrum) Menggunakan Tray Dryer dengan Udara Panas dari Proses Pirolisis Rosdanelli Hasibuan; Hamdanah Hasibuan; Yovani Nissi Madani; Viqry Pramananda; Risma Fazillah; Vikram Alexander
Jurnal Teknik Kimia USU Vol. 12 No. 2 (2023): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v12i2.11496

Red ginger (Zingiber officinale Var. Rubrum) is a rhizome plant often used as a complementary spice, a mixed ingredient in the food and beverages, and herbal medicines. One of the post-harvest processing of red ginger is drying, which aims to reduce the water content of red ginger to a point where the growth of microorganisms and the activity of enzymes that can damage red ginger can be prevented. This study aims to evaluate the effect of tray height and drying air temperature on moisture content, drying rate, drying characteristics, and quality of red ginger dried using a tray dryer with hot air from a biomass pyrolysis process. The results showed that both tray height and drying temperature affected red ginger's water content and drying rate. The quality of red ginger that complies with SNI 1-3393-1994 was obtained at a tray height of 60 cm and a drying temperature of 70 °C, with distinctive aroma and taste characteristics, the water content of 8,9%; ash content of 5,5%; oil content of 4,93 mL/100 g; and no fungus on the red ginger.

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