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All Journal Bumi Lestari Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Teknik Kimia USU Jurnal Sains dan Teknologi Jurnal Teknik Sipil Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Journal of Engineering and Technological Sciences Jurnal Dampak EduChemia: Jurnal Kimia dan Pendidikan Jurnal Rekayasa Sipil dan Lingkungan RACIC : Rab Construction Research Jurnal Sains Teknologi dan Lingkungan (JSTL) Jurnal Penelitian Pendidikan IPA (JPPIPA) Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Al-Ard: Jurnal Teknik Lingkungan Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Jurnal Penelitian IPTEKS JURNAL TEKNIK Neo Teknika: Jurnal Ilmiah Teknologi Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Daur Lingkungan KAIBON ABHINAYA : JURNAL PENGABDIAN MASYARAKAT Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Journal of Infrastructure and Civil Engineering Jurnal Teknik Kimia USU Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) JURNAL SIPISSANGNGI: Jurnal Pengabdian Kepada Masyarakat Techno SAINSTEK Jurnal Meteorologi dan Geofisika JURNAL REKAYASA KIMIA & LINGKUNGAN
Lita Darmayanti
Universitas Riau
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering 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 Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Growth Kinetics Studies of Saccharomyces Cerevisiae for Bioethanol Production of Oil Palm Empty Fruit Bunches Adrianto Ahmad; Yelmida Yelmida; Lita Darmayanti; Sri Rezeki Muria
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 70 No 2 (2026): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v70i2.597

Abstract

This study aims to analyze the growth kinetics of saccharomyces cerevisiae in the bioethanol production process based on oil palm empty fruit bunch waste. Growth kinetics parameters are an important basis for fermentor design, especially the maximum growth rate constant to determine the minimum biomass residence time. The minimum biomass residence time is a critical point for fermentor operation in processing empty oil palm fruit bunches into bioethanol. This research was the laboratory experimental research method with a quantitative approach. The result in this research shows the growth kinetics parameters of saccharomyces cerevisiae have been successfully determined to produce the highest bioethanol at 5% KOH variation. Kinetic analysis established a substrate saturation coefficient (KS) of 28.195 g/L under the S < 10 K criterion, alongside a maximum specific growth rate (mM) of 0.00073 hour?¹. Furthermore, the process demonstrated a biomass yield (Yx/S) of 0.053 g/g and a product yield (YP/S) of 2.96 g/g, culminating in a final bioethanol productivity of 0.41 g/L·h. Therefore, these growth kinetics parameters can be used in designing a fermentor system for processing empty oil palm fruit bunches into bioethanol.
Assessment of Sail River Water Quality in Pekanbaru City Using the STORET and Pollution Index (IP) Methods Dewi Fitria; Nabila Rahma Suci; Lita Darmayanti
Jurnal Rekayasa Kimia & Lingkungan Vol 20, No 1 (2025): Jurnal Rekayasa Kimia & Lingkungan (June, 2025)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v20i1.40087

Abstract

The Sail River acts as the main drainage in Pekanbaru City. Several community activities around the Sail River, such as residential areas, plantations, livestock, shops, markets, and schools, cause decreasing in water quality in the Sail River. For this reason, it is necessary to analyze the water quality of the Sail River using the STORET method and the Pollution Index. The physical (temperature, TSS, TDS), chemical (pH, COD, DO, Pb), and biological (total coliform) parameters were analyzed. The results of the water quality analysis obtained were compared with Class II Water Quality Standards based on PP No. 22 of 2021. The results of the analysis of the quality status of the Sail River downstream based on the STORET method over the last five years show a "heavily polluted" condition, while the results of the IP method analysis show a "moderately polluted" condition. Based on the STORET and Pollution Index methods results, sail river needs a pollution control policy and management to overcome the pollution.
Co-Authors AA Sudharmawan, AA Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Alex Kurniawandy Amalia Masturah Aminuyati Annam, M. Khairul Annisa Arifandita Mifshella Arhamny Arhamny Ari Sandhyavitri Aryo Sasmita Atria Martina Bahruddin Bahruddin Bambang Sujatmoko Benny urzikri Rahim Cahyani, Anugrah Damayanti, Elok David Andrio Desasy, Hannifah Julian Desce P Simarmata, Stella Dewi Fitria Dewi Fitria Dewi Fitria DEWI FITRIA, DEWI Dewi, Dian Kharisma Dian Paramita Dinil Fitri, Shafira Dwiegi Safitri Febriani Dwiegi Safitri Febriani Edward HS Edward Hs Edward Sitio Edy Saputra Elvi Yenie Elvi Yenie, Elvi Enri Damanhuri Ermiyati Ermiyati Eryan Chintya Debby Esther RA Fachry Abda El Rahman Fadhila Fadhila Fadhila Fadhila Fadli Dirga Subardi Fauzi, Manyuk Febiola, Ollga Febriana, Hertina Febriansyah, M. Ferdy Ashari Syawal Fika Rahma Yuni Fika Rahma Yuni Fikri Julian Fitra, Rakha Athaya Grethy Asmara Sitorus Habrio Ilva YR Hamdani . Hamdani Hamdani Hendriani, Annisa Hesti, Tsaniatul Amania Husni, Afdaul Imelda Dewi Agusti Iqbal Perdana Putra Irpan, Apdani Jaya Alexander Pandiangan Jecky Asmura Kartika Pratama Syafitri Khairani , Ayu Dhea Khairat Khairat, Khairat Kholik, Dede Abdul Leowedi, Agung Lidya Astuti Lidya Astuti Lisa Asmiyarna Lisa Asmiyarna Lisa Indriani M. Khairul Annam M. Ridwansyah Mahardika, Dewa Ayu Divia Pradhaswari Mahombar, Boby Steven Marta Yudha Ozman May Kristina Maya Septiani Wijaya Mayrizki, Maura Monita Olivia Muhamad Yusa Muhammad Hasbu Nazar Muhammad Ramadhan Saputra Muhardi Muhardi Munir Tanjung Mutia Putri Mutia Putri Nabila Rahma Suci Nadia Yulia Lestari Nadya Dwi Permatasari Vionola Norima Sabrina Novriyanti, Lucky Okdika Berliandra Olivia, Arinda Oni Loretha Priscilia P Girsang, Yemima Priyambada, Gunadi Purwoko, Agus Putra, Iqbal Perdana Putri, Dini Riskiana Putri, Nofia Afifah Regina Deva Aulia Reynaldi Saputra Rezeki, Muhammad Dio Rilian Gerry Sitompul Ririn Yuari Farandia Rodiah Rabi’ah Al Adawiyah Roma Dearni Ryan Renaldi S Siswanto Safitri, Nurramadhani Saputra, Muhammad Ramadhan Sarah Dwi Arini Shafira Dinil Fitri Shinta Elistya Shinta Elystia Sigalingging, Krisda Novita Soewignjo Agus Nugroho Sri Febria Sri Helianty Sri Helianty Sri Rezeki Muria Sri Rezeki Muria Sri Rezeki Muria Suprihanto Notodarmodjo Suprihanto Notodarmojo Sutikno, Sigit Syamsul Arifin Syarfi Daud Tania Octalina Tamamy Tanjung, Munir Ucok H Pulungan Usman, Ratika Vayolla Syakirah Karil Winda Astuti Halinda Putri Wulandari Wulandari Yasmin Nabila Dharma Yelmida Azis Yenie, Elvi Yogi Guntara Yohanna Lilis H Yuni, Fika Rahma Zuchra Helwani