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All Journal Jurnal Rekayasa Proses International Journal of Renewable Energy Development CALYPTRA : Jurnal Ilmiah Mahasiswa Universitas Surabaya Jurnal Bahan Alam Terbarukan Seminar Nasional Teknik Kimia Kejuangan Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences Communications in Science and Technology Jurnal Rekayasa Proses MIZAN, Jurnal Ilmu Hukum Jurnal Pengendalian Pencemaran Lingkungan (JPPL) IBLAM Law Review Jurnal Teknologi Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Sains Materi Indonesia Jurnal Rekayasa Proses Malahayati International Journal of Nursing and Health Science Jurnal Pengabdian, Riset, Kreativitas, Inovasi, dan Teknologi Tepat Guna (Parikesit)

Teguh Ariyanto

Chemical Engineering Department, Universitas Gadjah Mada, Jl. Grafika, No. 2, Yogyakarta 55281

Author-ID : 233361

Religion Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences

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Kinetika Kalsinasi Seria Zirkonia dari Proses Gelasi Eksternal Fera Wahyuningsih; Wahyudi Budi Sediawan; Teguh Ariyanto; Sri Widiyati
Jurnal Rekayasa Proses Vol 10, No 1 (2016)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Calcination process is one of the important steps in the synthesis of nuclear fuel particles for High Temperature Reactor (HTR). In this work, the calcination process of Ceria-Stabilized Zirconia (CSZ) was carried out. The aims of the study are to study the kinetic modelling of calcination process of CSZ kernel, to determine the suitable operation condition, and to observe physical characters of the calcined material. The feed of calcination process was material prepared by an external gelation. The calcination was conducted from room temperature to 500 oC with heating rate of 1 and 2 °C/min. CSZ kernel per grain was weighted and the diameter was measured during calcination process, hence determining the weight loss and size change. The results showed that there was a weight loss of kernel during calcination process. When the weight of grain reached a constant value, the process of calcination was considered complete. ABSTRAKProses kalsinasi merupakan salah satu tahap penting dalam pembuatan inti bahan bakar reaktor nuklir suhu tinggi (HTR). Penelitian mengenai proses kalsinasi seria zirkonia (CSZ) sudah banyak dilakukan, namun lebih ditekankan pada pengamatan sifat fisik dan mekanik. Penelitian ini bertujuan untuk mempelajari model kinetika proses kalsinasi kernel CSZ dan mencari kondisi operasi yang cocok untuk proses tersebut. Kalsinasi dilakukan dengan bahan baku yang berasal dari proses gelasi eksternal pada berbagai suhu hingga suhu 500 oC dengan laju pemanasan 1 oC/menit dan 2 oC/menit. Penimbangan berat dan pengukuran diameter per butir kernel CSZ setelah proses kalsinasi dilakukan untuk mengetahui berat yang hilang dan penyusutan butir selama proses tersebut. Ketika proses kalsinasi, terjadi penurunan berat butir kernel seiring dengan kenaikan suhu kalsinasi. Pada saat berat butir mencapai kestabilan, proses kalsinasi dapat dianggap berakhir.

Kajian Dampak Lingkungan pada Sistem Produksi Listrik dari Limbah Buah Menggunakan Life Cycle Assessment Fajar Marendra; Anggun Rahmada; Agus Prasetya; Rochim Bakti Cahyono; Teguh Ariyanto
Jurnal Rekayasa Proses Vol 12, No 2 (2018)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

A B S T R A C TProducing biogas by anaerobic digestion (AD) is a promising process that can simultaneously provide renewable energy and dispose solid waste safely. However, this process could affect environment e.g. due to greenhouse gas emissions. By life cycle assessment (LCA), we assessed the environmental impact (EI) of an integrated fruit waste-based biogas system and its subsystems of Biogas Power Plant Gamping. Data were collected from an actual plant in Gamping, Sleman, Yogyakarta, Indonesia that adopted a wet AD process at mesophilic condition. The results showed that the global warming potential (GWP) emission of the system reached 81.95 kgCO2-eq/t, and the acidification potential (AP), eutrophication potential (EP), human toxicity potential (HTPinf) and fresh water ecotoxicity (FAETPinf) emissions were low. The EI was mainly generated by two subsystems, namely, the electricity generation and the digestate storage. A comparison analysis showed that the GWP become the main contributor of environmental loads produced by Biogas Plant Gamping, Suazhou Biogas Model, Opatokun Biogas Model, Opatokun Pyrolisis Model, dan Opatokun Integrated System Anaerobic Digestion and Pyrolisis. The GWP impact control and reduction could significantly reduce the EI of the system. It has been shown that improving the technology of the process, the electricity generation and the digestate storage will result in the reduction of EI of the biogas system.Keywords: environmental impact; fruit waste; life cycle assessment (LCA); renewable energyA B S T R A KProduksi listrik dari biogas dengan anaerobic digestion (AD) merupakan proses yang menjanjikan karena dapat menghasilkan energi listrik dan penanganan limbah padat dengan aman. Namun, proses ini mempengaruhi lingkungan akibat emisi gas rumah kaca. Penilaian dampak lingkungan (environmental impact atau EI) sistem biogas berbasis limbah terpadu dan subsistemnya terhadap Biogas Power Plant Gamping (BPG) dilakukan dengan metode life cycle assesement atau LCA. Data dikumpulkan dari plant yang sebenarnya di Gamping, Sleman, Yogyakarta, Indonesia yang mengadopsi proses AD basah pada kondisi mesofilik. Potensi pemanasan global (global warming potential atau GWP) dari sistem mencapai 81,95 kgCO2-eq/t, sedangkan potensi keasaman (acidification potential atau AP), potensi eutrofikasi (eutrophication potential atau EP), potensi toksisitas manusia (human toxicity potential atau HTPinf) dan ekotoksisitas air (fresh water ecotoxicity atau FAETPinf) potensi emisinya cukup rendah. Potensi EI terutama dihasilkan oleh dua subsistem, yaitu, pembangkit listrik dan penyimpanan digestate. Analisis perbandingan menunjukkan bahwa dampak GWP menjadi kontributor utama dari beban lingkungan yang dihasilkan oleh Biogas Plant Gamping, biogas model Suazhou, biogas model Opatokun, model pirolisis Opatokun, serta model integrasi AD dan pirolisis Opatokun. Pengendalian dan pengurangan dampak GWP secara signifikan dapat mengurangi EI dari sistem. Telah terbukti bahwa peningkatkan teknologi proses, pembangkit listrik dan penyimpanan digestate akan menghasilkan pengurangan EI dari sistem biogas.Kata kunci: dampak lingkungan; energi terbarukan; life cycle assessment (LCA); limbah buah

Removal of metronidazole from simulated wastewater using Fe/C catalyst with a combination of heterogenous Fenton and ozonation Panandita, Budi Satria; Prasetyo, Imam; Ariyanto, Teguh
Jurnal Rekayasa Proses Vol 17, No 2 (2023)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.75633

This study examined roles of iron oxide/porous carbon material (Fe/C) for removing metronidazole in simulated wastewater by adsorption and then followed by a degradation using advanced oxidation process (H2O2, O3 and combination of H2O2/O3). Fe/C was produced by an impregnation of iron oxide precursors during resorcinol-formaldehyde synthesis followed by pyrolysis at 800 °C. For comparison, blank carbon (without iron loading) was also synthesized. The properties of porous carbon were investigated by SEM-EDX and N2-sorption analyzer. Blank carbon and Fe/C featured the specific surface area of 755 m2g-1 and 394 m2g-1, respectively. The loading of iron oxide altered the pore structures of material. The adsorption isotherm data were followed by the Langmuir isotherm model with metronidazole uptake up to 46.07 mg g-1 and 39.97 mg g-1 at 30oC by Fe/C and blank carbon. The degradation study was then carried out with catalyst dosage of 0.1 g/100 mL solution and 120 min reaction time at 30 oC. It is noticeably that, the degradation of metronidazole was better when a combination of H2O2/O3 was employed, compared with an individual of H2O2 or O3. Regarding the stability, Fe/C maintained its high activity upon four consecutive runs.

Co-Authors AA Sudharmawan, AA Agus Prasetya Akmal, Afiffurroyan Aflah Amelia, Shinta Anggun Rahmada Arief Budiarto Arih Diyaning Intiasari Budi Aji, Budi Budi Satria Panandita Cahyono, Rochim Bakti Chandra Wahyu Purnomo Evila Purwanti Sri Rahayu, Theresia Fahrurrozi, Moh. Fajar Marendra Fera Wahyuningsih Gala, Kyla Amalia Hardaning Pranamuda Hardhianti, Meiga Putri Wahyu Henra Gurning Hery Widijanto Imam Prasetyo Imam Prasetyo Irsal, Muh. Masruroh, Kuni Mayang Rachma Aninstya Moh. Fahrurrozi Nur'aini, Aprilianti Nurbaedah, Nurbaedah Pani Satwikanitya Pradana, Nova Yoga Prasetyo, Imam Putri, Nur Rofiqoh Eviana Risnawati, Dhea Atika Rochmadi Rochmadi Saputra, Daffa Dewa Satwikanitya, Pani Sri Widiyati Sudarto Sudarto Tandio, Sugianto Wahyudi Budi Sediawan Wahyudi Budi Sediawan Yuni Kusumastuti, Yuni Zahrul Mufrodi, Zahrul

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