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All Journal International Journal of Advances in Applied Sciences Media Teknologi Hasil Perikanan Reaktor Jurnal Bahan Alam Terbarukan CHEMICA Jurnal Teknik Kimia REKAYASA Elkawnie Konversi Jurnal Ilmu Pangan dan Hasil Pertanian Jurnal Penelitian Sains Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Journal Of Chemical Process Engineering (JCPE) Turbo : Jurnal Program Studi Teknik Mesin Jurnal Pengabdian Pada Masyarakat JTERA (Jurnal Teknologi Rekayasa) JMM (Jurnal Masyarakat Mandiri) Conference on Innovation and Application of Science and Technology (CIASTECH) Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat G-Tech : Jurnal Teknologi Terapan Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Indonesia Jurnal Gastronomi Indonesia Jurnal Abdi Masyarakat Indonesia Makara Journal of Technology Jurnal Teknik Kimia dan Lingkungan Indonesian Journal of Chemical Engineering Journal Of Chemical Process Engineering
Lukhi Mulia Shitophyta
Universitas Ahmad Dahlan
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Journal : Elkawnie

 1 
Development of Kinetic Models For Biogas Production From Tofu Liquid Waste Lukhi Mulia Shitophyta; Anisa Salsabila; Firanita Anggraini; Siti Jamilatun
Elkawnie: Journal of Islamic Science and Technology Vol 7, No 1 (2021)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v7i1.8296

Abstract

Abstract: Biogas promises bioenergy to be developed as a renewable fuel to reduce the fossil energy crisis. Biogas raw material can be derived from tofu liquid waste. Biogas is processed by anaerobic digestion. This study aimed to develop a simulation of the kinetic model variations of biogas production from tofu liquid waste. The results showed that the ascending limb of the exponential equation had a greater coefficient (R2 = 1) than the ascending limb of the linear equation (R2 = 0.9574). The descending limb of the linear equation had a better coefficient (R2 = 0.9574) than the descending limb of the exponential equation (R2 = 0.95). The Gaussian model had the greatest R2 of 0.9937. Logistic growth had the greatest coefficient (R2 = 0.9951) compared to modified Gompertz (R2 = 0.9817) and exponential rise to maximum (R2 = 0.9852) in the simulation of cumulative biogas production. The fit model for kinetic biogas production from tofu liquid waste is Gaussian Model.Abstrak: Biogas merupakan salah satu bioenergi yang menjanjikan untuk dikembangkan dalam mengurangi krisis energi fosil. Bahan baku biogas dapat berasal dari limbah cair tahu yang diolah secara anaerobic digestion. Penelitian ini bertujuan untuk mengembangkan variasi model simulasi kinetika produksi biogas dari limbah cair tahu. Hasil penelitian menunjukkan bahwa persamaan eksponensial untuk grafik kenaikan memilki koefisien yang lebih besar (R2 = 1) dibandingkan grafik kenaikan dengan persamaan linier (R2 = 0,9574). Grafik penurunan pada persamaan linier memiliki nilai koefisien lebih besar (R2 = 0,9574) dibandingkan grafik penurunan pada persamaan eksponensial (R2 = 0,95). Model Gaussian menghasilkan nilai  koefisien tertinggi R2 = 0,9937. Logistic growth menghasilkan nilai R2 terbesar (0,9951) dibandingkan modified Gompertz (R2 = 0,9817) dan exponential rise to maximum (R2 = 0,9852) pada simulasi produksi biogas kumulatif. Model yang paling cocok untuk kinetika produksi biogas dari limbah cair adalah model Gaussian.
A Pyrolysis of 80 Mesh Spirulina platensis Residue (SPR) With Fe3O4 Catalyst Siti Jamilatun; Lukhi Mulia Shitophyta; Heidy Oktavia Nisa; Mutia Endar Nurhidayah
Elkawnie: Journal of Islamic Science and Technology Vol 7, No 2 (2021)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v7i2.8950

Abstract

Abstract: Spirulina platensis Residue (SPR) is obtained from the solid residue of Spirulina platensis extraction, which has high carbohydrate and protein content. Pyrolysis technology will convert SPR into a bio-oil, water phase, char, and gas (CO, CO2, H2, CH4) product with the potential as an environmentally friendly and sustainable fuel. This study aims to obtain data on the optimum conditions and product yield composition of SPR catalytic pyrolysis using the in-situ method.  Pyrolysis occurs in a fixed-bed reactor with SPR 50 g feed and Fe3O4 catalyst (2.5 g and 5 g) at temperature variations of 300-600 °C with an average heating rate of 14.07 °C/min. The higher the pyrolysis temperature, the more bio-oil yield, the optimum at a temperature of 500 ⁰C. The use of 2.5 and 5-gram catalysts obtained bio-oil yields of 25.01 and 17.67 %. The yield of biochar will be lower with increasing pyrolysis temperature. The optimum condition for the gas production was achieved at 300 °C, using a catalyst of 2.5 and 5 grams, the yield of gas was 23.59, and 19.74 %. Moreover, the smaller the specific gravity and the higher the bio-oils pH, the better it is as a vehicle fuel.Abstrak: Spirulina platensis Residu (SPR) diperoleh dari residu padat ekstraksi Spirulina platensis yang memiliki kandungan karbohidrat dan protein tinggi. Teknologi pirolisis akan mengubah SPR menjadi produk bio-oil yang berpotensi sebagai bahan bakar ramah lingkungan dan berkelanjutan. Penelitian ini bertujuan untuk mendapatkan data kondisi optimum dan komposisi yield produk dari pirolisis katalitik SPR dengan metode in-situ. Pirolisis SPR akan menghasilkan produk berupa bio-oil, water phase, char dan gas (CO, CO2, H2, CH4). Pirolisis berlangsung dalam reaktor fixed-bed dengan umpan SPR 50 g serta katalis Fe3O4 (2.5 g dan  5 g)  pada variasi suhu 300-600°C dengan heating rate rata-rata 14,07 °C/min. Semakin tinggi suhu pirolisis semakin banyak yield bio-oil, optimum pada suhu 500 ⁰C. Pemakaian katalis 2,5 dan 5 gram diperoleh yield bio-oil sebanyak 25,01 dan 17,67 %. Yield biochar akan semakin rendah dengan kenaikan suhu pirolisis. Kondisi optimum produk gas dicapai pada 300 °C dengan katalis 2,5 dan 5 gram diperoleh yield gas sebesar 23,59, dan 19,74 %. Hal tersebut mengakibatkan, semakin kecil berat jenis dan semakin tinggi pH bio-oil maka semakin baik sebagai bahan bakar kendaraan.
Co-Authors Adi Permadi Adi Permadi, Adi Anisa Salsabila Aster Rahayu Ayu Damayanti Budi Rianto Wahidi Budiarti, Gita Indah Budiyono, Budiyono Darmawan, Masreza Hari Den S. B. Ardiansyah Dessy Norma Yunita Dhais Dora Cholivia Wijaya Dika Fajariyanto Dika Fajariyanto Dika Fajariyanto Dwi Rossani Nur Afifah Endah Sulistiawati Evi Agustina, Evi Fahlevi, Agam Yogi Fatima Rauf Firanita Anggraini Firda Mahira Alfiata Chusna Gita Indah Budiarti Gita Indah Budiarti Hasna Aeska Khoirunnisa Heidy Oktavia Nisa Indah Puspita Sari Juwitaningtyas, Titisari K. Kusmiyati Luthfi Kurnia Dewi, Luthfi Kurnia Maharani Nur Bela Pertiwi Maryudi Maryudi Maryudi, Maryudi Masreza Hari Darmawan Meilya Suzan Triyastuti, Meilya Suzan Muhammad Hanafi Muhammad Rizky Nendanov Mukhaimin, Iman Murein Miksa Mardhia Mutia Endar Nurhidayah Ndaru Okvitarini Nisya Slivani Sembiring Novia Rahmawati Novie Wijaya Nurfitriyani, Annisa Nurillah, Nidha Amalia Nurul Aulia Syifa Ondang, Hetty Magrittha Paulin Purba, Irene Enjeli Purnomo, Zusuf Tri Purwanti, Siwi Putri, Firanita Angraini Ratih Dea Larasati Rizka Septiana Zhirmayanti Rusfidiantoni, Yestri Salsabila, Anisa Sarifa Kaisupy Satar, Ibdal Setiyani, Seila Shinta Amelia Shinta Amelia Shinta Amelia Siti Jamilatun Siti Jamilatun Siwi Purwanti Syahrani Pramia Lestari Vinna Fajarwaty Yestri Rusfidiantoni Yusuf Eko Nugroho Yusuf Eko Nugroho Yusuf Eko Nugroho Yusuf Eko Nugroho Zahra Lintang Cahyaningtyas