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All Journal Majalah Forum Teknik UGM Reaktor International Journal of Renewable Energy Development Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal Seminar Nasional Teknik Kimia Kejuangan Journal of Research and Technology Indonesian Journal of Chemistry Jurnal Purifikasi CHEESA: Chemical Engineering Research Articles JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) ASEAN Journal of Chemical Engineering Jurnal Teknik Kimia Indonesia Jurnal Pengabdian dan Peningkatan Mutu Masyarakat (JANAYU) Indonesian Community Journal Sewagati Petrogas : Journal of Energy and Technology International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Journal of Fundamentals and Applications of Chemical Engineering LEMBARAN PUBLIKASI MINYAK DAN GAS BUMI JURNAL REKAYASA KIMIA & LINGKUNGAN
Ali Altway
Chemical Engineering Department, Institute Technology Of Sepuluh Nopember, Surabaya,
Religion Agriculture, Biological Sciences & Forestry Arts 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Other

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Peningkatan Kompetensi Guru-Guru SMK Jawa Timur dalam Bidang Aplikasi Mikrobiologi Industri Guna Pendidikan Berkualitas dan Berkelanjutan Altway, Saidah; Zuchrillah, Daril Ridho; Suprapto, Suprapto; Qomariyah, Lailatul; Prajitno, Danawati Hari; Puspita, Niniek Fajar; Soeprijanto, Soeprijanto; Pudjiastuti, Lily; Humaidah, Nurlaili
Sewagati Vol 9 No 4 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i4.2358

Abstract

Mikrobiologi memiliki peran penting dalam berbagai sektor industri, mulai dari pangan, farmasi, hingga bioteknologi. Mikroorganisme berkontribusi signifikan dalam proses fermentasi untuk produksi makanan dan minuman. Selain itu, peran dalam sektor pengolahan limbah, mikroorganisme digunakan untuk bioremediasi, yaitu penguraian limbah dan polutan menjadi bahan yang tidak berbahaya, mendukung praktik industri yang lebih berkelanjutan. Dengan berkembangnya pemanfaatan mikroorganisme dalam dunia industri, Departemen Teknik Kimia Industri melakukan pengabdian masyarakatya dengan mengadakan pelatihan aplikasi mikrobiologi kepada guru-guru SMK bidang teknik kimia seluruh Jawa Timur yang merupakan sebagai upaya meningkatkan kompetensi kepada guru-guru SMK bidang teknik kimia di Jawa Timur. Pelatihan ini telah berlangsung 17 Juli – 28 Agustus 2024 yang berkolaborasi dengan praktisi industri biodiesel serta ditutup dengan mengunjungi beberapa SMK di Jawa Timur. Kegiatan pengabdian masyarakat ini berhasil ditandai dengan peningkatan pemahaman para peserta dan keikutsertaan peserta dalam melaksanakan akutualisasi diri.
Simulasi Unit Stripping CO2 Dalam Packed Column Skala Industri Dengan Kondisi Non-Isothermal Nisa, Nur Ihda Farikhatin; Altway, Ali; S, Susianto
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i1.13547

Abstract

Emisi karbondioksida ke atmosfer dianggap sebagai penyebab utama perubahan iklim, termasuk pemanasan global dan permasalahan pertanian. Berbagai teknologi pemisahan CO2 banyak dikembangkan. Absorpsi kimia adalah teknologi pemisahan yang paling efektif dan banyak digunakan dalam industri kimia maupun petrokimia. Dimana pelarut yang telah digunakan dapat di regenerasi kembali di kolom stripper. Stripping adalah proses regenerasi termal pelarut dimana larutan tersebut dikontakkan dengan pelarut gas yang tidak larut terhadap cairan tersebut. Penelitian ini bertujuan untuk mengembangkan simulasi unit stripping CO2 dalam packed column skala industri dengan mengestimasi kinerja unit stripping CO2 yang dinyatakan dengan % efisiensi kolom stripping dan komposisi gas yang keluar dari stripper. Simulasi dilakukan secara teoritis dengan mengembangkan model matematis untuk proses stripping CO2 dalam packed column skala industri. Selanjutnya hasil simulasi divalidasi dengan data riil pada salah satu industri pupuk di Indonesia. Variabel-variabel yang digunakan adalah tekanan operasi kolom, temperatur rich solution dan laju steam. Hasil simulasi untuk tekanan stripper 2,56 atm dengan laju rich solution 2943316 kg/jam dan temperatur rich solution 390 K menunjukkan CO2 (% mol) 99,038%, sedangkan data pabrik menunjukkan 97,5862%.
Prediksi Kesetimbangan Uap-Cair Sistem Biner 3-Pentanol + Asam Propionat Sebagai Basis Pada Proses Desain Pemurnian Biofuel Bekti, Andi Setyo; Paramitha, Pradnya; Altway, Saidah; Wibowo, Agung Ari
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The depletion of fossil fuels has led to a turn toward renewable and cleaner diesel fuel. In recent years, research has focused on the development of green energy to replace fossil fuels. 3-Pentanol is the preferred alternative fuel because it has better fuel properties compared to other biofuels. 3-Pentanol, as a propionic acid derivative chemical platform, can be produced from renewable biomass through the lactic acid pathway. Therefore, to obtain 3-Pentanol with high purity, a purification process such as distillation is required. Vapor-liquid equilibrium data and the thermodynamic model parameters are needed as basis for designing a distillation column and optimizing the separation process. The aim of this study is to predict the vapor-liquid equilibria (VLE) of the binary systems of 3-Pentanol + propionic acid at 100 kPa, 200 kPa, and 300 kPa using the UNIFAC model in combination with the Hayden-O’Connell model. The prediction results showed no azeotropes found for the studied systems. This study can also open a scope for the thermodynamic studies of biofuel separation process.
Prediksi Kesetimbangan Cair-Cair pada Sistem Air + Asam Format + Pelarut Organik dengan Model UNIFAC Azaim, Ahmad Hayiz; Ramadhani, Farah Amirah Firyal; Altway, Saidah
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Formic acid can be produced by a fermentation process, producing an aqueous solution in the form of a fermentation broth. The separation of formic acid from water is challenging due to the presence of an azeotropic mixture. The aim of this research is to predict the liquid-liquid equilibrium data using the universal functional activity coefficient (UNIFAC) model for formic acid + organic solvent + water systems at 298.15 and 323.15 K and atmospheric pressure (101.3 kPa). The liquid-liquid equilibrium data are required as a reference for optimal design of formic acid extraction process. This research also introduces new two-phase systems for the separation of formic acid from aqueous solution and expands the scope of thermodynamic studies on formic acid extraction. The extraction performance was in the order of MIPK > 2-hexanone > MIBK. The temperature has no significant influence on the extraction performance. The prediction of formic acid + water + MIBK system at 298,15 K and atmospheric pressure (101.3 kPa) was also compared with the experimental data with the RMSD 9,76 %. This result represented that UNIFAC was a reliable model for the prediction of liquid-liquid equilibria of system involving formic acid.
Prediksi Data Kesetimbangan Cair-cair Pada Sistem Terner Air + Asam Laktat + Pelarut Menggunakan Model UNIFAC-DMD Sugiarto, Kurniawan Wahyu; Honora, Faradiba; Altway, Saidah; Zuchrillah, Daril Ridho
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Industrial lactic acid can be produced via chemical synthesis and fermentative production. However, due to the environmental issue and consumer preference, fermentative production of lactic acid is preferable. Lactic acid is used in many industries, including food processing, pharmaceutical, chemical and cosmetic industries. Various methods have been developed for separating lactic acid from its aqueous solution, and liquid-liquid extraction is considered as the most promising and efficient method. Liquid-liquid equilibrium data provide the basis for a rational design and optimal extraction operation. The objective of this study is to predict the liquid-liquid equilibria in the ternary systems of water+ lactic acid + solvent (MIBK, 2-pentanol, 1-hexanol) at temperatures of 303.15 K and 313.15 K and atmospheric pressure (101.3 kPa) using the UNIFAC-Dortmund (DMD) model. The distribution coefficients and separation factors were determined to evaluate the extraction performance of lactic acid. The extraction performance was in the order of MIBK > 1-hexanol > 2-pentanol. The prediction of lactic acid + water + MIBK system at 303,15 K was also compared with the experimental data with the RMSD 2,5 %. This result represented that UNIFAC-DMD was a reliable model for the prediction of liquid-liquid equilibria of system involving lactic acid.
Pengaruh Gliserol sebagai Plasticizer terhadap Karakterisasi Edible Film dari Kappa Karaginan Larasati, Wahyu Adinda; Rahmawati, Yeni; Taufany, Fadlilatul; Susianto, Susianto; Altway, Ali; Nurkhamidah, Siti
Eksergi Vol 21 No 3 (2024)
Publisher : Prodi Teknik Kimia, Fakultas Teknik Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v21i3.12451

Abstract

Perkembangan industri pengemasan makanan di era mendatang akan beralih ke bahan alami dan ramah lingkungan yang bisa diproduksi dari biopolimer seperti pati dan hidrokoloid lainnya untuk mengurangi paparan polusi dari polimer sintetis. Kappa karaginan memiliki sifat yang rapuh, sehingga dibutuhkan plasticizer untuk menghasilkan edible film yang lebih elastis. Jenis plasticizer yang digunakan adalah gliserol. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh konsentrasi gliserol terhadap karakterisasi edible film dari kappa karaginan. Kappa karaginan dengan konsentrasi 1% (b/v) dilarutkan dengan akuades kemudian ditambahkan gliserol dengan variasi konsentrasi 0,5; 1; 1,5, dan 2% (b/v). Edible film kemudian di karakterisasi berdasarkan sifat mekanik, gugus fungsional, ketebalan, kadar air, kuat tarik, elongasi, warna dan opacity. Hasil analisa menunjukkan bahwa penambahan gliserol sebesar 1% dapat meningkatkan sifat mekaniknya, dan film mempunyai 0,146 mm, kadar air 17,90%, kuat tarik dan elongasi 2,53 MPa dan 14,09% dan sifat optik warna dan opacity masing-masing sebesar 96,96% dan 1,32. 
Mechanistic Modeling of a Spiral-Wound Nanofiltration Module using DSPM-DE for High-Purity Salt Recovery from Desalination Brine Sugianto, Mohamad; Altway, Ali; Susianto
Eksergi Vol 23 No 1 (2026)
Publisher : Prodi Teknik Kimia UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/eksergi.v23i1.15947

Abstract

Rejected brine is a concentrated NaCl stream whose elevated Ca²⁺, Mg²⁺, and SO₄²⁻ depress the quality of industrial salt. We built a mechanistic model of a spiral-wound KeenSen NF1-4040F nanofiltration (NF) element using the Donnan–Steric Pore Model with Dielectric Exclusion coupled to the Extended Nernst–Planck equations. Radial transport is coupled to axial mass balances and solved at steady, isothermal conditions over  bar and . Water flux  increases almost linearly with ; along the module  falls and  rises nearly linearly. Recovery increases with  but decreases with . Flux decomposition shows cations are convection-dominated, whereas anions carry larger shares of diffusion and electromigration. Predicted end-of-module rejections are ≈ 99.0-99.3%, ≈ 97.6-98.1%, ≈ 96.0-96.6%, ≈ 88-89%, and ≈ 74-75%, confirming divalent ≫ monovalent selectivity. Linking to product quality, the simulated permeate at  bar and  yields a conservative dry-salt purity of ~96.9 wt% NaCl when all non-halite salts co-precipitate. Under halite-first crystallization with a gypsum pre-step and bittern purge, only a minor fraction co-crystallizes, giving ≥98.5 wt% (≈99.5 wt% for a 20% co-crystallization assumption). Thus, operating at moderate-to-high  with moderate cross-flow not only maximizes recovery and divalent rejection but also supplies a permeate that can be crystallized to SNI-compliant high-purity salt.
Characterization of zirconia sulfate catalyst for sustainable aviation fuel from waste cooking oil Widasgantri, Treisnaning; Widjaja, Tri; Dahnum, Deliana; Altway, Ali; Lamhotmatua, Thasya; Antonius, Kevin
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62076

Abstract

The growing accumulation of waste cooking oil (WCO) in Indonesia presents serious environmental concerns while offering potential as a renewable feedstock for sustainable aviation fuel. This study evaluates the conversion of WCO into bio-jet fuel via pyrolytic catalytic cracking (PCC) using cobalt-dispersed sulfated zirconia (Co/ZrO₂–SO₄, Co/SZ) catalysts under atmospheric pressure. Sulfated zirconia was synthesized hydrothermally and impregnated with 1, 3, and 5 wt% cobalt. Catalyst characterization by FTIR, XRD, BET, and SEM–EDX confirmed successful cobalt dispersion, preservation of the monoclinic ZrO₂ phase, and increasing surface area with higher cobalt loading (83.93 to 111.19 m² g⁻¹). Catalytic performance was tested in a fixed-bed reactor at 400, 430, and 460 °C with a feed-to-catalyst ratio of 100:1. GC–MS analysis revealed that both temperature and cobalt loading significantly influenced selectivity toward the jet fuel fraction (C₁₂–C₁₆). The highest bio-jet fuel selectivity (68.63%) and yield (57.46 wt%) were obtained using 5 wt% Co/SZ at 400°C. At 430 °C, excessive secondary cracking reduced selectivity to 27.78% for 3 wt% Co/SZ, with gasoline-range products reaching 62.70%. Increasing the temperature to 460 °C partially restored jet-range selectivity to 62.67% for 5 wt% Co/SZ due to enhanced isomerization and aromatization reactions. Reusability tests indicated gradual catalyst deactivation caused by coke deposition and loss of acid sites. These results demonstrate that the synergistic interaction between sulfated zirconia acidity and cobalt’s deoxygenation functionality enables efficient WCO conversion into bio-jet fuel, highlighting Co/SZ as a promising catalyst for sustainable aviation fuel production.
Gerakan Kuliner Halal di Pujasera Keputih Surabaya: Kolaborasi KKN dan UMKM Zuchrillah, Daril Ridho; Altway, Saidah; Hamzah, Afan; Suprapto, Suprapto; Arifin, Rizal; Humaidah, Nurlaili; Qomariyah, Lailatul; Puspita, Niniek Fajar; Soeprijanto, Soeprijanto; Aulia, Anisa Fatma
I-Com: Indonesian Community Journal Vol 6 No 1 (2026): I-Com: Indonesian Community Journal (Maret 2026)
Publisher : Fakultas Sains Dan Teknologi, Universitas Raden Rahmat Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/i-com.v6i1.8999

Abstract

Sebagai negara dengan populasi Muslim terbesar, Indonesia memiliki potensi pasar produk kuliner halal yang sangat besar. Namun, kesadaran pelaku usaha terhadap kewajiban sertifikasi sesuai UU Nomor 33 Tahun 2014 masih perlu ditingkatkan. Kota Surabaya memiliki potensi wisata kuliner signifikan melalui Sentra Wisata Kuliner (SWK), sehingga penerapan sertifikasi halal menjadi esensial untuk meningkatkan kepercayaan konsumen serta daya saing produk UMKM lokal. Kegiatan pengabdian masyarakat ini bertujuan meningkatkan kesadaran dan kepatuhan pelaku UMKM di Pujasera Keputih, Surabaya, terhadap regulasi halal. Melalui kolaborasi tim KKN, metode pelaksanaan mencakup identifikasi usaha, sosialisasi Jaminan Produk Halal (JPH), hingga pendampingan administratif pengajuan sertifikasi skema self-declare. Hasil kegiatan menunjukkan bahwa pendampingan intensif ini berhasil membantu pelaku usaha memperoleh sertifikat halal sekaligus meningkatkan pemahaman mengenai prinsip halalan thayyiban dan kebersihan proses produksi. Keberlanjutan program diharapkan dapat memperluas jangkauan sertifikasi halal di berbagai sentra kuliner lainnya melalui kolaborasi antar lembaga.
Co-Authors Abubakar Tuhuloula Achmad Dwitama Karisma Achmad Roesyadi Adi Soeprijanto Aditya Akhmad Sony Afan Hamzah, Afan Afri Dwijatmiko Agung Ari Wibowo Agus Surono Agustiani, Elly Aisyah Alifatul Altway, Saidah Anggraheny, Nurul Annasit Annasit Antonius, Kevin Ardiani, Liana Arifin, Rizal Aris Tjahyanto Atha Pahlevi Atletiko, Faizal Johan Aulia, Anisa Fatma Ayu Larasati Azaim, Ahmad Hayiz Azka Afuza Bayu Yusuf Bekti, Andi Setyo Budhikarjono, Kuswandi Kusno Dahnum, Deliana Danawati Hari Prajitno Dewi Istiyanie Dwi Arimbi Wardaningrum Eldira Nindri Wena Endah Prasetyo Rini Eriska Wahyu Kusuma Erlinda Ningsih, Erlinda Fadlilatul Taufany Fadlilatul Taufany Fahmi Fauziah, Melinda Nur Firsta Hardiyanto Gianfranco, Enrique Gissa Navira Sevie Hafid, Abdul Haqqyana Haqqyana Harahap, A. H. Hendi Riesta Mulya Honora, Faradiba Istiyanie, Dewi Istiyanie, Dewi Junety Monde Juwari Juwari K Kusnaryo K Kuswandi Karnila Willard Koatlely Serpara Kusnarjo Kusnarjo Kuswandi Kuswandi Kuswandi Kuswandi Kuswandi Kuswandi Lailatul Qadariyah Lailatul Qomariyah, Lailatul Lamhotmatua, Thasya Larasati, Wahyu Adinda Lily Pudjiastuti, Lily Ling Ling M Rachimoellah M Rachimoellah Mahfud Mahfud Mahfud Mahfud Margono Margono Medya Ayunda Fitri Merisa Veronika Suparto Meydita, A. D. Mochamad Sidiq Muhammad Anshorulloh Mukhlish Muhammad Fadlan Minallah Muhammad Iqbal Musfil AS Nabila Farras Balqis Nadhifa Auria Andini Niniek Fajar Puspita, Niniek Fajar Nonot Soewarno Nora Amelia Novitrie Nora Amelia Novitrie Novitrie, Nora Amelia Nugroho, Muhammad Aldi Nuniek Hendrianie Nuniek Hendrianie Nur Aini Nadhifah Nur Ihda Farihatin Nisa Nur Ihda Farikhatin Nisa Nurkhamidah, Siti Nurlaili Humaidah, Nurlaili Palupi, A. E. Pambudi, Alfian Wisnu Pamungkas, Raditya Pamungkas, Raditya Yudhi Pradnya Paramitha, Pradnya Prapti Ira Kumala Sari Prida Novarita Trisanti, Prida Novarita Putri, Rheyna Casca Hanafi R. Darmawan Darmawan Rachmaniah, Orchidea Ragilia Rahma Maulidia Raja, Risfanali Ramadhani, Farah Amirah Firyal Renanto Handogo Rendra Panca Anugraha Rohmah, Nur Azizatur Rohmah, Nur Azizatur Rohmania, Inti Ruben Leonardo Panjaitan S, Susianto Salasa Ariq Sungkono Samuel Sembiring Siti Machmudah Siti Nurchamidah Siti Nurkamidah Siti Nurkhamidah Siti Zullaikah Sri Rachmania Juliastuti Sugeng Winardi Sugianto, Mohamad Sugiarto, Kurniawan Wahyu Suhadi Suhadi Suhadi Suhadi Suprapto Suprapto Suprapto Suprapto Suprapto Suprapto Surya Rachmadani Susianto Susianto S Susianto Susianto Susianto Susianto Susianto, Susianto Syukharial, Muhammad Alraedi Tantular Nurtono Taufany, Fadlilatul Tetrisyanda, Rizky Tri Widjaja Tri Widjaja Trisna Kumala Dhaniswara W Widiyastuti Wahyu Adinda Larasati Wahyu Meka Warlinda Eka Triastuti Widasgantri, Treisnaning Widiyastuti Winardi, S. Winardi, Sugeng Wulansari, Dessy Yeni Rahmawati Yeni Rahmawati, Yeni Yosita Dyah Anindita Yunita D Indrasari Zuchrillah, Daril Ridho Zulfahmi Hawali