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All Journal J-Sil (Jurnal Teknik Sipil dan Lingkungan) Berkala Ilmiah Pertanian Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Journal of Degraded and Mining Lands Management Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Paspalum: Jurnal Ilmiah Pertanian Jurnal Agricultural Biosystem Engineering Open Science and Technology Open Community Service Journal Jurnal Pengabdian dan Pemberdayaan Masyarakat Inovatif J-Sil (Jurnal Teknik Sipil dan Lingkungan)
Elhamida Rezkia Amien
Department Of Agricultural And Engineering, Faculty Of Agriculture, Lampung University, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation Other

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Journal : Open Science and Technology

 1 
Studi Analisis Kelayakan Ekonomi Mesin Perajang Batang Singkong (Rabakong) Tipe TEP 2: Economic Feasibility Analysis Study of Cassava Stems Chopper (Rabakong) Type TEP 2 Elhamida Rezkia Amien; Sandi Asmara; Ferdita Kurnia; Siti Suharyatun
Open Science and Technology Vol. 1 No. 1 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no1.2021.12

Abstract

Untuk mempermudah pemanfaatan limbah batang singkong, diperlukan mesin yang dapat merubah ukuran batang singkong menjadi lebih kecil. Perajang Batang Singkong (Rabakong) tipe TEP 2 merupakan mesin yang dapat menghasilkan rajangan batang singkong berbentuk serbuk halus. Tujuan pnelitian ini adalah untuk mendapatkan analisis kelayakan mesin Rabakong tipe TEP 2 yang dapat digunakan sebagai pertimbangan pemanfaatan bagi masyarakat luas. Penelitian ini dilakukan dengan menganalisis data mulai dari biaya pembuatan mesin sampai biaya pengujian atau biaya operasi mesin Rabakong tipe TEP 2. Analisis yang dilakukan meliputi analisis biaya mesin, analisis BEP, dan analisis kelayakan. Berdasarkan hasil analisis ekonomi mesin Rabakong tipe TEP 2 menghasilkan pendapatan sebesar Rp. 26.258.447,45 dengan jumlah jam kerja 8 jam/hari. Sehingga mesin ini layak untuk digunakan dengan tujuan ekonomi tertentu. To facilitate the utilization of cassava stem waste, a machine is needed that can reduce the size of the cassava stems to be smaller. Cassava stem chopper (Rabakong) type TEP 2 is a machine that can produce chopped cassava stems in the form of fine powder. The aim of this research is to obtain a feasibility analysis for the Rabakong type TEP 2 machine which can be used as a consideration for the utilization to the public. This research was conducted by analyzing data ranging from machine manufacturing costs to testing costs or operating costs for the TEP 2 Rabakong machine. The analysis carried out includes machine cost analysis, BEP analysis, and feasibility analysis. Based on the results of the economic analysis of the Rabakong type TEP 2 engine, it generates an income of Rp. 26,258,447.45 with the number of working hours 8 hours/day. So that this machine is suitable for use for certain economic purposes.  
Pemanfaatan Limbah Batang Singkong Menjadi Obat Nyamuk Bakar Dengan Campuran Sereh Wangi (Cymbopogon nardus L.): Utilization Of Cassava Stem Waste Into Mosquito Coils With Citronella (Cymbopogon nardus L.) Elhamida Rezkia Amien; Sandi Asmara; Resa Anggraini; Ridwan
Open Science and Technology Vol. 1 No. 2 (2021): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.vol1no2.2021.24

Abstract

Provinsi Lampung merupakan salah satu produsen singkong terbesar di Indonesia. Salah satu limbah melimpah yang perlu diolah adalah batang singkong. Sebagai upaya pemanfaatan limbah batang singkong menjadi produk alternative lain, maka perlu dilakukan kajian tentang pembuatan limbah batang singkong menjadi obat nyamuk bakar melalui pencampuran dengan sereh wangi. Pelaksanaan penelitian terdiri dari beberapa tahap yaitu persiapan alat dan bahan, pengecilan ukuran dan penyaringan, pengeringan bahan, pencampuran bahan dan perekat, pencetakan, pengeringan obat nyamuk, dan analisis data. Hasil analisis data disajikan dalam bentuk tabel dan grafik. Analisis data meliputi Uji kadar air, kerapatan, lama bakar, berat per satuan, dan uji keutuhan obat nyamuk bakar.  Berdasarkan pengujian, dihasilkan obat nyamuk bakar dengan diameter lingkaran 12 cm, lebar 0,7 cm, ketebalan 0,4 mm, panjang  80 cm, dan berwarna kuning kecoklatan. Obat nyamuk yang dihasilkan dari pencampuran limbah batang singkong dan sereh wangi memenuhi 2 kriteria standard SII yaitu keutuhan dan kadar air. 2 kriteria belum memenuhi standard SII yaitu berat per satuan dan lama bakar. Lampung Province is one of the largest cassava producers in Indonesia. One of the abundant wastes that need to be processed is cassava stems. To utilize cassava stem waste into other alternative products, it is necessary to conduct a study on the manufacture of cassava stem waste into mosquito coils through mixing with citronella. The implementation of the research consisted of several stages, namely preparation of tools and materials, size reduction and screening, drying of materials, mixing of materials and adhesive, printing, drying of insect repellent, and data analysis. The results of data analysis were presented in the form of tables and graphs. Data analysis includes testing of moisture content, density, burning time, weight per unit, and wholeness test of mosquito coils. Based on the test, mosquito coils were produced with a circle diameter of 12 cm, a width of 0.7 cm, a thickness of 0.4 mm, a length of 80 cm, and a brownish yellow color. Mosquito repellent produced from mixing cassava stem waste and Citrolella that fulfils two SII standard criteria, namely wholenes test and water content. two criteria does not meet the SII standard, namely weight per unit and burn time.
Fabrication of Agricultural Waste-Based Biobriquettes Using Tapioca Starch Adhesive Asmara, Sandi; Tamrin; Warji; Muhammad , Fazle; Amien, Elhamida Rezkia
Open Science and Technology Vol. 5 No. 2 (2025): Open Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/ost.v5i2.179

Abstract

Background: Energy demand continues to increase along with population growth and human activities, while the availability of fossil energy in Indonesia is becoming increasingly limited. On the other hand, agricultural biomass wastes such as cassava stems, bamboo stems, coconut shells, and corn cobs are abundantly available but have not yet been optimally utilized as alternative energy sources.Aims: The aim of this research is to to evaluate the effect of combining biomass wastes of cassava stems, bamboo stems, coconut shells, and corn cobs using tapioca starch as a binder on the physical characteristics and energy value of biobriquettes, as well as to assess their conformity with briquette quality standards as an alternative fuel.Methods: This study produced biobriquettes from cassava stems, bamboo stems, coconut shells, and corn cobs using tapioca starch as a binder with two concentrations (7% and 10%). The biobriquettes were evaluated for physical and energy characteristics, including density, moisture content, compressive strength, shatter resistance index, calorific value, and burning rate, following SNI 01-6235-2000.Result: Evaluation of biobriquette quality based on SNI 01-6235-2000 shows that all treatments meet the requirements for density, moisture content, and Shatter Resistance Index, indicating good physical quality and mechanical durability. For calorific value, only treatments P2T1, P2T2, P3T1, and P3T2 meet the minimum SNI standard (? 5,000 cal/g), while P1T1 and P1T2 do not. Overall, the biobriquettes produced have the potential to comply with SNI 01-6235-2000 as an alternative fuel, although optimization of biomass composition is still needed to improve calorific value.Conclusion: The combination of cassava stems, bamboo stems, coconut shells, and corn cobs using tapioca starch as a binder was able to produce biobriquettes suitable as an alternative fuel. Treatments P2 and P3, particularly with a 7% binder concentration, met the calorific value requirement of SNI 01-6235-2000, indicating that a lower tapioca binder concentration is more effective and has strong potential for development as a renewable energy source based on biomass waste.
Co-Authors AA Sudharmawan, AA Aditiya, Muhammad Kharisma Adwijaya, Aditia Afrilia, Yuliani Agus Haryanto Agus Haryanto Agustin, Churia Camelia Ahmad Tusi Akbar, Fahri Andrian Ariessandy, Irvan Asropi Asropi Azmi, Faadiyah Nurul Budi Indra Setiawan dewi Agustina Iryani Diding Suhandy Dwi Dian Novita Erdi Suroso Febryan Kusuma Wisnu Ferdita Kurnia Ghufroni, Muhammad Afif Kuncoro, Sapto Kurniawan, Yoga Bagus Kusuma, Abi Satria Jaya Latifa Indraningtyas Leni Tri Wahyuni, Leni Tri Liska Mutiara Septiana M. Amin M. Haviz Manullang, Gregoius Tua Chandra Mareli Telaumbanua Mareli Telaumbanua Megi Saputra Muhamad Nurdin Yusuf Muhammad , Fazle Muhammad Amin Muhammad Amin Muhammad Haviz Muhammad Yusfiar Karfiandi Novianti, Evita Puspita Yuliandari Puspita Yuliandari Resa Anggraini RIBUT SUGIHARTO Ridwan Ridwan Baharta Ridwan Ridwan Ridwan, Ridwan Ristanti Ristanti Roh Santoso Budi Waspodo Rudi Yanto Rudi Yanto, Rudi Safitri, Jeny Sandi Asmara Sapto Kuncoro Sari, Mey Yuni Mustika Sholihah, Annisa Mar'atus Simamora, Kristian Gerenaldo Siti Suharyatun Sugeng Triyono Sugiyanti, Cicih Supiatun Syamto, Ilham Nur Tamrin Tamrin Tamrin Tawarina Br. Siregar Tenaumbanua, Mareli Titin Yulianti Udin Hasanudin Utomo, Basri Wahyu Warji Warji Warji Winda Rahmawati Winda Rahmawati Yuyun Ari Trisnawati