Jurnal Rekayasa Proses
Jurnal Rekayasa Proses is an open-access journal published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada as scientific journal to accommodate current topics related to chemical and biochemical process exploration and optimization which covers multi scale analysis from micro to macro and full plant size. Specialization topics covered by Jurnal Rekayasa Proses are: 1. Kinetics and Catalysis Includes simulations and experiments in reaction kinetics, catalyst synthesis and characterization, reactor design, process intensification, microreactor, multiphase reactors, multiscale phenomena, transfer phenomena in multiphase reactors. 2. Separation and Purification System Includes phase equilibrium, mass transfer, mixing and segregation, unit operation, distillation, absorption, extraction, membrane separation, adsorption, ion exchange, chromatography, crystallization and precipitation, supercritical fluids, bioprocess product purification. 3. Process System Engineering Includes simulation, analysis, optimization, and process control on chemical/biochemical processes based on mathematical modeling; multiscale modeling strategy (molecular level, phase level, unit level, and inter-unit integration); design of experiment (DoE); current methods on simulation for model parameter determination. 4. Oil, Gas, and Coal Technology Includes chemical engineering application on process optimization to achieve utmost efficiency in energy usage, natural gas purification, fractionation recovery, CO2 capture, coal liquefaction, enhanced oil recovery and current technology to deal with scarcity in fossil fuels and its environmental impacts. 5. Particle Technology Includes application of chemical engineering concepts on particulate system, which covers phenomenological study on nucleation, particle growth, breakage, and aggregation, particle population dynamic model, particulate fluid dynamic in chemical processes, characterization and engineering of particulate system. 6. Mineral Process Engineering Includes application of chemical engineering concepts in mineral ore processing, liberation techniques and purification, pyrometallurgy, hydrometallurgy, and energy efficiency in mineral processing industries. 7. Material and biomaterial Includes application of chemical engineering concepts in material synthesis, characterization, design and scale up of nano material synthesis, multiphase phenomena, material modifications (thin film, porous materials etc), contemporary synthesis techniques (such as chemical vapor deposition, hydrothermal synthesis, colloidal synthesis, nucleation mechanism and growth, nano particle dispersion stability, etc.). 8. Bioresource and Biomass Engineering Includes natural product processing to create higher economic value through purification and conversion techniques (such as natural dye, herbal supplements, dietary fibers, edible oils, etc), energy generation from biomass, life cycle and economic analysis on bioresource utilization. 9. Biochemistry and Bioprocess Engineering Includes biochemical reaction engineering, bioprocess optimization which includes microorganism selection and maintenance, bioprocess application for waste treatment, bioreactor modeling and optimization, downstream processing. 10. Biomedical Engineering Includes enhancement of cellular productions of enzymes, protein engineering, tissue engineering, materials for implants, and new materials to improve drug delivery system. 11. Energy, Water, Environment, and Sustainability Includes energy balances/audits in industries, energy conversion systems, energy storage and distribution system, water quality, water treatment, water quality analysis, green processes, waste minimization, environment remediation, and environment protection efforts (organic fertilizer production and application, biopesticides, etc.).
Articles
273 Documents
<![CDATA[Carbon composite of NiO hydrothermal impregnation from sugarcane bagasse and its electrochemical properties ]]>
<![CDATA[Nasti, Al Nadine De]]>;
<![CDATA[Siburian, Kyfti Yolanda]]>;
<![CDATA[Sembiring, Abraham Danofan]]>;
<![CDATA[Kristianto, Hans]]>;
<![CDATA[Susanti, Ratna Frida]]>;
<![CDATA[Oktaviano, Haryo Satriya]]>;
<![CDATA[Nugroho, Agung]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 17 No 2 (2023): Volume 17, Number 2, 2023 ]]>
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DOI: 10.22146/jrekpros.88210
<![CDATA[Sugarcane bagasse (SB) can synthesize activated carbon (AC) through a two-step calcination process at calcination at 400oC and activation at 800oC. NaOH 0.1 M is used to activate the pre-carbonized sample in the activation step. The AC samples undergo hydrothermal impregnation with nickel oxide (NiO) at 110°C. The X-ray diffraction (XRD) pattern and Energy dispersive X-ray spectroscopy (EDX) confirmed the presence of NiO after this process. Scanning Electron Microscope (SEM) indicates the presence of pore structures in the sample morphology. A three-electrode system with 1 M Na2SO4 as an electrolyte was employed to assess the electrochemical properties. The specific capacitance for activated carbon derived from SB stands at 89.53 F/g at 0.05 A/g current density, while after impregnation with NiO, it increases to 250.53 F/g at the same current density. The results demonstrate the possibility of activated carbon from sugarcane bagasse waste composited with NiO as supercapacitor electrodes.]]>
<![CDATA[Jurnal rekayasa proses submission update ]]>
<![CDATA[Petrus, Himawan Tri Bayu Murti]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 17 No 2 (2023): Volume 17, Number 2, 2023 ]]>
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<![CDATA[Aiming to be able to provide much better service and scientific publishing media for all related stakeholders, Jurnal Rekayasa Process is excited to bring you some important updates. First, we would like to inform you that we have transitioned to a new submission platform. We will no longer be accepting submissions through the old page https://jurnal.ugm.ac.id/jrekpros. Instead, we encourage all authors and researchers to utilize our new and improved submission platform at https://jurnal.ugm.ac.id/v3/jrekpros. Your cooperation in adhering to this change is highly appreciated, and we believe that this update will contribute to a more efficient submission process for everyone involved. Furthermore, we are pleased to announce a change in our publication schedule. Starting from the year 2024, the Journal Rekayasa Proses will publish three issues a year, specifically in April, August, and December. We trust that this adjustment will facilitate a more comprehensive and timely dissemination of valuable research. We sincerely appreciate your attention to these updates and your continued support. If you have any questions or concerns, feel free to reach out to our editorial team.]]>
<![CDATA[Pembaruan informasi pengumpulan Jurnal Rekayasa Proses ]]>
<![CDATA[Petrus, Himawan Tri Bayu Murti]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 17 No 2 (2023): Volume 17, Number 2, 2023 ]]>
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<![CDATA[Dengan tujuan untuk dapat memberikan layanan yang lebih baik dan media publikasi ilmiah yang lebih baik bagi semua pihak terkait, Jurnal Rekayasa Proses dengan senang hati membawa beberapa pembaruan penting untuk Anda. Pertama-tama, kami ingin memberitahu Anda bahwa kami beralih ke platform pengiriman yang baru. Kami tidak akan lagi menerima pengiriman melalui halaman lama https://jurnal.ugm.ac.id/jrekpros. Sebaliknya, kami mendorong semua penulis dan peneliti untuk menggunakan platform pengiriman baru dan ditingkatkan kami di https://jurnal.ugm.ac.id/v3/jrekpros. Kerjasama Anda dalam mengikuti perubahan ini sangat dihargai, dan kami yakin bahwa pembaruan ini akan berkontribusi pada proses pengiriman yang lebih efisien bagi semua pihak yang terlibat. Selain itu, dengan senang hati kami mengumumkan perubahan jadwal publikasi kami. Mulai dari tahun 2024, Jurnal Rekayasa Proses akan menerbitkan tiga edisi setiap tahun, khususnya pada bulan April, Agustus, dan Desember. Kami yakin bahwa penyesuaian ini akan memfasilitasi penyebaran penelitian yang bernilai secara lebih menyeluruh dan tepat waktu. Kami sungguh menghargai perhatian Anda terhadap pembaruan ini dan dukungan berkelanjutan Anda. Jika Anda memiliki pertanyaan atau kekhawatiran, jangan ragu untuk menghubungi tim redaksi kami.]]>
<![CDATA[Pengaruh Konsentrasi NaBH4 dan Penambahan Surfaktan Sodium Dodecyl Sulfate (SDS) dalam Sintesis Nanopartikel Perak sebagai Material Antibakteri ]]>
<![CDATA[Arif Budianto Cuaca]]>;
<![CDATA[Ratna Frida Susanti]]>;
<![CDATA[Anastasia Prima Kristijarti]]>;
<![CDATA[Widi Astuti]]>;
<![CDATA[Himawan Tri Bayu Murti Petrus]]>;
<![CDATA[Wanta, Kevin Cleary]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 1 (2024): Volume 18, Number 1, 2024 ]]>
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DOI: 10.22146/jrekpros.12274
<![CDATA[This study was carried out to study the synthesis of silver nanoparticles in which the concentrations of the reducing agent NaBH4 and SDS surfactant varied. Furthermore, the silver nanoparticles formed were characterized and tested for their antibacterial capabilities to show how varying parameters could influence the properties of silver nanoparticles as an antibacterial material. 0.05 M AgNO3 precursor solution was mixed with NaBH4 solution as a reducing agent in the 0.001–0.015 M concentration range. In addition, surfactant was also added under CMC conditions. The Ag+ ion reduction process took place at room temperature for 5 minutes. Then, the colloidal silver nanoparticle samples were characterized and tested for antibacterial properties. The bacteria used are Escherichia coli and Staphylococcus aureus. This study reduced 98% of Ag+ ions to Ago particles when using surfactants and the highest concentration of NaBH4, whereas the synthesis of silver nanoparticles without surfactants could only reduce 88% of Ag+ ions. Using surfactants also produces particles with a much smaller diameter, around 51 nm. Antimicrobial testing also showed that silver nanoparticles with surfactants could inhibit bacterial growth. Thus, using surfactants and high concentrations of NaBH4 can provide better antimicrobial characteristics and capabilities to these silver nanoparticles.]]>
<![CDATA[Physical properties and GC/MS analysis of pyrolysis oil from tire and plastic waste (HDPE/high-density polyethylene and PP/polypropylene) ]]>
<![CDATA[Al Buchori Nur Fajar]]>;
<![CDATA[Niken Safitri]]>;
<![CDATA[Khoirina Dwi Nugrahaningtyas]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 2 (2024): Volume 18, Number 2, 2024 ]]>
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DOI: 10.22146/jrekpros.12342
<![CDATA[Pyrolysis is an innovative technology that can convert various types of waste into high-value products. Pyrolysis Oil (PO) can be used as an alternative fuel. The objective of this research aims to determine the physical properties and the content of chemical compounds in the pyrolysis oil of waste tire and plastic, which are then compare to the characteristics of commercial fuel. Pyrolysis was carried at 350℃ for 4 hours using motorcycle tire and plastic waste (HDPE and PP) as raw materials. The result shows that the physical properties of PO HDPE C are similar to gasoline with a density of 0.807 g/mL, dynamic viscosity of 0.623 cP, and kinematic viscosity of 0.771 cSt. However, its calorific value is still very low. PO PP C has a calorific value almost comparable to commercial fuel of 38.24 MJ/kg. Meanwhile for PO tires, the properties unqualified characteristics of fuel. GC/MS analysis shows that PO Tires C1 has a high content of olefins and aromatic compound. PO HDPE C has a high content of paraffin and olefin compound. Pyrolysis oil of tires and plastic waste have the potential to be used as fuel. Pyrolysis conditions to produce PO with characteristics similar to fuel.]]>
<![CDATA[Efisiensi penurunan kadar COD dalam air limbah industri laundry menggunakan metode elektrokoagulasi ]]>
<![CDATA[Nama, Aldo Rianda Purba]]>;
<![CDATA[Ririn Endah Badriani]]>;
<![CDATA[Kartini, Audiananti Meganandi]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 2 (2024): Volume 18, Number 2, 2024 ]]>
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DOI: 10.22146/jrekpros.12392
<![CDATA[Limbah laundry mengandung parameter pencemar yang tinggi, salah satunya adalah COD (Chemical Oxygen Demand). Kandungan pencemar tersebut berasal dari deterjen yang ditambahkan saat pencucian untuk menghilangkan noda pada pakaian. Pembuangan air limbah laundry secara langsung ke lingkungan dapat menyebabkan pencemaran dan kerusakan lingkungan. Salah satu alternatif yang dapat digunakan untuk mengatasi permasalahan air limbah industri laundry adalah dengan menggunakan metode elektrokoagulasi. Elektrokoagulasi merupakan salah satu metode pengolahan air limbah secara elektrokimia dengan melepaskan koagulan aktif dari elektroda. Proses pengolahan air limbah industri laundry menggunakan variasi waktu kontak 60; 90; dan 120 menit dengan variasi tegangan 10; 20; dan 30 volt. Pengolahan air limbah laundry menggunakan metode elektrokoagulasi terbukti mampu menurunkan kadar pencemar pada air limbah industri laundry. Variasi tegangan 30 volt dan waktu kontak 120 menit mampu menurunkan kadar COD hingga 72 mg/L dari kadar awal 864 mg/L dengan efisiensi penurunan mencapai angka 91,48%. Hasil analisis data menggunakan anova di dapatkan nilai p-value < 0,05 yang artinya variasi tegangan dan waktu kontak berpengaruh signifikan terhadap penurunan COD pada air limbah industri laundry menggunakan metode elektrokoagulasi.]]>
<![CDATA[An extensive analysis and examination of techniques to enhance the efficiency of water extraction from wastewater generated during the recycling of nickel manganese cobalt (NMC) batteries using reverse osmosis membrane technology. ]]>
<![CDATA[Prasetya, Agus]]>;
<![CDATA[Mulyono, Panut]]>;
<![CDATA[Sujoto, Vincent Sutresno Hadi]]>;
<![CDATA[Warmita, Helena Karunia]]>;
<![CDATA[Perdana, Indra]]>;
<![CDATA[Sutijan, Sutijan]]>;
<![CDATA[Astuti, Widi]]>;
<![CDATA[Sumardi, Slamet]]>;
<![CDATA[Jenie, Siti Nurul Aisyiyah]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 1 (2024): Volume 18, Number 1, 2024 ]]>
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DOI: 10.22146/jrekpros.12711
<![CDATA[Industrial water consumption will account for 22% of global water demand by 2030. Industry water conservation is encouraged by rapid corporate growth. Industrial resource usage and pollutant emissions can be reduced via cleaner production methods. Recycling is essential to greener production and the circular economy. Recycling is crucial to achieving the 2030 Sustainable Development Goals. The electric vehicle (EV) sector has propelled battery business growth in recent years, especially in Indonesia. The electric vehicle (EV) sector will benefit from using Nickel Manganese Cobalt (NMC) batteries. The study will use reverse osmosis (RO) membrane filtration to recover water from recovered NMC battery effluent. The experiment will investigate feed solution concentrations, pressures (8, 10, and 12 bar), and temperatures (30, 40, and 50°C). Two factors—permeate flux and metal ion rejection—determine reverse osmosis membrane efficiency. Li and Na metal rejection was maximum at 30°C and 12 bar, with 94-96% and 90-93% rejection rates, respectively. Under certain operating conditions, reverse osmosis membrane technology significantly reduced sodium (Na) concentration in NMC battery recycling effluent. Thus, wastewater is no longer saline. Reverse osmosis water can be reused for cooling due to its Li and Na concentrations.]]>
<![CDATA[Comparative Study of Single and Multiple Pre-treatments of Rice Straw on Cellulose Content for Bioethanol Production ]]>
<![CDATA[Dewi, Luthfi Kurnia]]>;
<![CDATA[Miranda, Ni Made Zevika]]>;
<![CDATA[Rabbani, Hashinatul Fikrial]]>;
<![CDATA[Nirwana, Wa Ode Cakra]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 2 (2024): Volume 18, Number 2, 2024 ]]>
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DOI: 10.22146/jrekpros.13187
<![CDATA[Utilization of lignocellulosic biomass for ethanol production has increased. One source of lignocellulosic is rice straw which contains cellulose, hemicellulose, and lignin. Before being used as an ingredient for bioethanol production, it needs to be pre-treated with alkali or acid. One of the factors that affect pre-treatment is the concentration of alkali or acid. The purpose of this study was to determine the concentration of NaOH and H2SO4 in single and multiple pre-treatment which produced the highest cellulose content for bioethanol production. The concentration of NaOH and H2SO4 are 0.75 M; 1 M and 1.5 M. Pre-treatment was carried out at room temperature for 90 minutes. Cellulose, hemicellulose, and lignin content were analyzed using the Chesson Datta method. The variable that produced the highest cellulose was continued to the Simultaneous Saccharification and Fermentation (SSF) at room temperature and analyzed for reducing sugar and bioethanol contents. The results showed that the highest cellulose content of 60.79% was found in single pre-treatment of 0.75 M H2SO4 of 44.89%, 1.5 M NaOH and multiple pretreatments of 0.75 M H2SO4 – 1.5 M NaOH of 68.14%. The highest bioethanol content was obtained in the multiple pretreatments of 0.75 M H2SO4 – 1.5 M NaOH of 23%.]]>
<![CDATA[Kajian kuat tekan dan kuat lentur material rammed earth dengan penambahan serat tandan kosong kelapa sawit sebagai dinding bangunan ]]>
<![CDATA[Wijaya, Kinanti]]>;
<![CDATA[Sutrisno]]>;
<![CDATA[Sebayang, Nono]]>;
<![CDATA[Luthan, Putri lynna A.]]>;
<![CDATA[Novia, Ayu]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 1 (2024): Volume 18, Number 1, 2024 ]]>
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DOI: 10.22146/jrekpros.86177
<![CDATA[Rammed earth material buatan manusia yang setara dengan batuan sedimen. Proses dalam membangun rammed earth melibatkan campuran tanah, air, dan aditif, kemudian dipadatkan di dalam bekesting sampai keadaan yang sangat padat. Sejauh ini serat tandan kosong kelapa sawit hanya digunakan sebagai pupuk dan bottom ash dari hasil pembakaran yang ditumpuk sehingga dapat menimbulkan pencemaran lingkungan. Pada penelitian ini digunakan limbah serat tandan kosong kelapa sawit sebagai bahan subtitusi semen pada campuran rammed earth. Tujuan penelitian ini adalah untuk mengetahui pengaruh penambahan serat tandan kosong kelapa sawit terhadap nilai kuat tekan dan kuat lentur rammed earth. Metode penelitian yang dilakukan menggunakan kajian eksperimen. Variasi persentase penambahan serat tandan kososng kelapa sawit (TKKS) 0%; 0,75%; 1%; dan 1,25% terhadap berat semen. Benda uji dibuat dengan bentuk silinder ukuran diameter 15 cm dan tinggi 30 cm dan balok ukuran 60 cm x 15 cm x 15 cm. Umur perawatan benda uji selama 28 hari. Serat tandan kosong kelapa sawit yang digunakan pada penelitian ini memiliki panjang berkisar antara 1-5 cm. Parameter pengujian yaitu analisa saringan, kuat tekan dan kuat lentur rammed earth. Hasil penelitian menunjukkan bahwan kuat tekan optimum terjadi pada variasi TRES0 (0% serat TKKS) yaitu didapat nilai tekan rata-rata sebesar 5,06 MPa. Sedangkan kuat lentur optimum terjadi pada variasi LRES1.25 (1,25% serat TKKS) yaitu didapat nilai lentur rata-rata sebesar 0,98 MPa dimana mampu menahan beban rerata sebesar 7,3 kN.]]>
<![CDATA[Batch filtration model of proanthocyanidins purification process from sorghum pericarp extract using polyethersulfone membrane ]]>
<![CDATA[Afandy, Moh. Azhar]]>;
<![CDATA[Sediawan, Wahyudi Budi]]>;
<![CDATA[Hidayat, Muslikhin]]>;
<![CDATA[Susanti, Devi Yuni]]>;
<![CDATA[Sawali, Fikrah Dian Indrawati]]>;
<![CDATA[Mustikaningrum, Mega]]>
<![CDATA[ Jurnal Rekayasa Proses Vol 18 No 1 (2024): Volume 18, Number 1, 2024 ]]>
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DOI: 10.22146/jrekpros.90292
<![CDATA[Sorghum is one type of plant rich in polyphenol chemicals, one of which is proanthocyanidin. The goal of this work was to construct a filtration equation model for the purification of proanthocyanidin compounds in sorghum pericarp extracts utilizing ultrafiltration methods at varied transmembrane pressures and molecular weight cut-off values on asymmetric polyethersulfone (PES) membranes. The pressure difference and size of MWCO were used to determine the rate of cake formation induced by fouling and concentration polarization. The model suggested in this work is based on a compressible filtration model that can represent the decrease in permeability values and the cake formation process produced by the compression of particles deposited on the surface of the membrane. The results reveal that the transmembrane pressure and MWCO considerably affect the performance of the proanthocyanidins separation process employing ultrafiltration membrane technology. The higher the transmembrane pressure, the higher the permeation flow rate. The effect of MWCO on permeability varies with the type of membrane and fluid employed. The larger the MWCO, the higher the permeability since the membrane pores are more significant and more accessible for the liquid to pass through. The high transmembrane pressure not only helps the feed flow swiftly through the membrane and overcomes the resistance but also encourages substance accumulation until the bulge component drops, resulting in a blocking mechanism in the surface or pore of the membrane. The batch filtration model suggested in this work exhibits a reasonably good fit, which can be seen from the projected data values using a model that tends to approach the experimental data values and may be employed as a model that depicts the cake-forming process on the membrane surface.]]>
