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All Journal Reaktor International Journal of Renewable Energy Development AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar ASEAN Journal of Chemical Engineering Jurnal Pengabdian Masyarakat Khatulistiwa REACTOR : Journal of Research On Chemistry And Engineering Dedikasi: Jurnal Pengabdian kepada Masyarakat Journal of Industrial Community Empowerment International Journal of Renewable Energy Development Journal of Clean Technology
Bahlawan, Zuhriyan Ash Shiddieqy
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Negeri Semarang, Indonesia
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Journal : Journal of Clean Technology

 1 
Bioethanol Production from Rice Straw through Utilization of Agrobiomass Waste in Central Java Towards Clean Energy: a Review Nisrina Hasna’ Nabil; Pratama Senapati Bagus Handoko; Fitri Wahyuningtyas Destantri; Adhika Bintang Syahputra; Zuhriyan Ash Shiddieqy Bahlawan
Journal of Clean Technology Vol. 1 No. 1 (2024): February 2024
Publisher : Universitas Negeri Semarang

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Abstract

Bioethanol is an alternative energy to replace fossil fuels from plants. Central Java is the second largest rice producer in the world in Indonesia, with the potential of rice straw waste which can be optimized into bioethanol. Rice straw contains abundant cellulose reaching 32-47%, hemicellulose reaching 19-27%, and lignin reaching 5-24%. Methods for making bioethanol from rice straw include pretreatment, hydrolysis, fermentation, and distillation. Lignin inhibits acid penetration before hydrolysis and microbial growth during fermentation, so it needs to be eliminated using alkaline pretreatment. Glucose production from alkali-pretreated rice straw can be hydrolyzed using chemical or enzymatic catalysts. Acid hydrolysis method using dilute H2SO4 with consideration of a shorter operating time. In addition, the price of enzymes is very high, and the operating time is very long, which will reduce product effectiveness. The acid hydrolysis method using 2% H2SO4 takes 30 minutes at 150 oC, which can produce a yield of 16%. Production of bioethanol from rice straw using separate hydrolysis and fermentation (SHF) methods. Saccharomyces cerevisiae, with a 24-hour fermentation time, produced a yield of 80.9% and a productivity of 0.172 g/L h. Distillation is used to remove impurities from liquids that have been polluted with rice straw-derived solutes with various boiling points. Vacuum distillation can produce a yield of 40% purity. Utilization of rice straw into bioethanol can reduce environmental pollution so that it supports clean energy.
Zero Waste Education Organic Waste Treatment For Students ofSD N Petompon 3, Semarang, Indonesia Irene Nindita Pradnya; Maulida Zakia; Zuhriyan Ash Shiddieqy Bahlawan; Kakalia Putri Auralita; Achmad Wikandaru; Daffa Nur Muhammad
Journal of Clean Technology Vol. 1 No. 2 (2024): August 2024
Publisher : Universitas Negeri Semarang

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SDN Petompon 3 in Semarang faces challenges related to inadequate facilities and poor environmental sanitation due to improper waste management. To address these issues, a community service program has been initiated. The program aims to educate 5th and 6th-grade students about organic clean waste management using Black Soldier Fly larvae (maggots). Through this program, students are taught how to sort, recycle, and process organic waste. They are also directly involved in practical waste management activities at the school. The primary objectives of this program are to raise students' environmental awareness and encourage them to become agents of change. Additionally, the program aims to address the issue of organic waste management in the school by utilizing the effective waste decomposition capabilities of Black Soldier Fly larvae. The resulting products from the organic waste processing, such as pupae, can be used as animal feed or as raw materials for organic fertilizer. The program also includes an entrepreneurship development component. Students are taught packaging, branding, and marketing skills to run small businesses. It is hoped that students can develop entrepreneurial skills and create sustainable business opportunities. The program is carried out through several stages, including coordination with the school, preparation of tools and materials, and the implementation of socialization and practical activities. Through this program, it is expected that environmental problems at SDN Petompon 3 can be gradually resolved and increase students' awareness and active participation in maintaining environmental cleanliness.
Energy Efficiency in Palm-Based Food Production Processes in margarine industry through the Utilization of Palm Fiber as Solid Biomass in Boiler Systems: A Comprehensive Review Zain, Faatin Nisriinaa; Pratiwi, Kharisma Ardhani Nur; Muna, Mochammad Choiril; Zuhriyan Ash Shiddieqy Bahlawan
Journal of Clean Technology Vol. 2 No. 2 (2025): August 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/joct.v2i2.28943

Abstract

The increasing demand for margarine, especially in palm oil producing countries like Indonesia, raises concerns about energy consumption and environmental sustainability. This review discusses the potential of palm fiber, a lignocellulosic byproduct of crude palm oil extraction, as a solid biomass fuel to improve energy efficiency in margarine processing industries. A systematic literature review was conducted by analyzing more than sixty peer reviewed journal articles, technical reports, and case studies to evaluate the feasibility and impact of palm fiber utilization. Based on various studies, palm fiber contains 47.9 percent cellulose, has a calorific value of 17.2 megajoules per kilogram, and shows low ash and moisture content, making it suitable for combustion in industrial boilers. Emission data indicate reductions in carbon dioxide, nitrogen oxides, and sulfur oxides compared to fossil fuels, with potential greenhouse gas savings of 0.098 tons of carbon dioxide per gigajoule and sulfur oxide reductions of up to ninety percent. Economically, palm fiber offers cost savings of up to forty percent, with a levelized cost of energy around six United States dollars per gigajoule and a payback period of less than five years. The application of drying and co firing technologies, supported by policy incentives such as Indonesia’s capital expenditure assistance, could enhance adoption. Research gaps remain in terms of long term boiler corrosion and industrial scale briquetting. Overall, palm fiber supports circular economy practices and aligns with SDG 7, 12, and 13, contributing to cleaner energy transitions in palm oil based food production systems.
Co-Authors Abdurrafi, Faishol Achmad Wikandaru Adhika Bintang Syahputra Akhmad Sutrisno Alfiansyah Aji Pratama Amrullah, Fauzan Anggun Septiamurti Anggun Septiamurti Astrilia Damayanti Astrilia Damayanti Ayu Nur Permadhini Bayu Triwibowo Bayu Triwibowo Catur Rini Widyastuti, Catur Rini Daffa Nur Muhammad Damayanti, Astrilia - Dewi, Yasinda Verrel Dinara Shinka Dhoni Hartanto Diana, Savira Rahma Dillah, Shohib Qomad Dwi Prasojo Dyta Silvia Mayasari Fahreza Pracenda Felicitia Fandika, Putri Maharani Adinda Fauzan Amrullah Fitri Wahyuningtyas Destantri Haniif Prasetiawan Harianingsih, Harianingsih Hutomo, Gayuh Aditya Imani, Nadya Alfa Cahaya Imanullah, Kautsar Taqi Irene Nindita Pradnya Irene Nindita Pradnya Kakalia Putri Auralita Khoridatus Sulwa Kristi, Silvia Yolanda Maharani Kusumaningrum Maulida Zakia Maulida Zakia Mayasari, Dyta Silvia Megawati Megawati - Megawati Megawati Megawati Megawati Megawati Megawati Megawati Megawati Muna, Mochammad Choiril Nisrina Hasna’ Nabil Permanadewi, Indrasukma Pradnya, Irene Nindita Pramitha, Deva Aurelya Prasetyo, Ridwan Anung Prasojo, Dwi Pratama Senapati Bagus Handoko Pratama, Muhammad Herdi Pratiwi, Kharisma Ardhani Nur Prima Astuti Handayani Radenrara Dewi Artanti Putri Radenrara Dewi Artanti Putri Radenrara Dewi Artanti Putri, Radenrara Dewi Artanti Ratna Dewi Kusumaningtyas Ria Wulansarie, Ria Sadan, Serlia Fitri Salsabila, Luvena Suwandi, Luluk Arvi Cahyaning Syahputra, Adhika Bintang Waliyuddin Sammadikun Wara Dyah Pita Rengga Wati, Afifah Sagita Fitria Zain, Faatin Nisriinaa Zefanya Pradiza