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All Journal International Journal of Public Health Science (IJPHS) International Journal of Advances in Applied Sciences MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management TRANSIENT: Jurnal Ilmiah Teknik Elektro Jurnal Sains dan Teknologi Jurnal Kesehatan Masyarakat Journal of Environmental Engineering and Sustainable Technology Jurnal Sumberdaya Alam dan Lingkungan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Civil Engineering Journal Chemistry Indonesian Journal of Chemical Research International Journal of Community Service Learning International Journal of Natural Science and Engineering Jurnal Sosial Ekonomi Kelautan dan Perikanan Indonesian Journal of Social and Environmental Issues (IJSEI) International Journal of Applied Technology Research Jurnal Wawasan Pendidikan International Journal of Qualitative Research Jurnal Teknologi Lingkungan Lahan Basah Environmental Engineering Journal ITATS INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Journal of Sustainable Infrastructure Advance Sustainable Science, Engineering and Technology (ASSET) Jurnal Kesehatan Masyarakat
Prayogo, Wisnu
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Journal : Journal of Environmental Engineering and Sustainable Technology

 1 
OPTIMIZATION OF BIOGAS PRODUCTION FROM TOFU WASTEWATER Purwanti, Ani; Muchlis, Muchlis; Arbintarso, Ellyawan Setyo; Rahayu, Suparni Setyowati; Gusmarwani, Sri Rahayu; Pangestu, Muhammad Puri Dwi; Prayogo, Wisnu
Journal of Environmental Engineering and Sustainable Technology Vol 9, No 01 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2022.009.01.4

Abstract

The Seyegan tofu industry has increased the output of tofu wastewater, which has not yet been put to good use. Biogas can be created by mixing wastewater from the tofu business with waste from the cow feces industry. In this study, we measure the time of fermentation, the composition variation, and the rate of increase in gas pressure from the biogas generation process. Three versions with three repetitions each were used in this investigation. Three different variations were tested: one with a ratio of 20% cow excrement and 80% wastewater tofu industry, one with a ratio of 35% cow feces and 65% wastewater tofu industry, and one with a ratio of 50% cow feces and 50% wastewater tofu industry. Using a biogas reactor consisting of 120 L plastic drums, the experiment was conducted. Gas pressure (mm) was monitored with a water column and fermentation duration using a digital timer (hours). To ascertain the viscosity variance of each variation composition, a level test was conducted. By using the gravimetric approach, water. According to the study's findings, a 2.5 mm water column containing a mixture of 50% cow feces and 50% wastewater from the tofu business had the maximum gas pressure. The ideal ratio of mixed materials within 7 days has a significant impact on optimal biogas production.
ASSESSMENT OF TWO-WHEELED VEHICLE EMISSIONS IN THE VICINITY OF THE ENVIRONMENTAL ENGINEERING DEPARTMENT, UNIVERSITAS TADULAKO, INDONESIA Maulida, Fatimah; Mawaddah, Nurul; Zurfi, Alfian; Prayogo, Wisnu; Nur, Aulia Mustaqiman
Journal of Environmental Engineering and Sustainable Technology Vol 12, No 1 (2025)
Publisher : Directorate of Research and Community Service (DRPM)

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Abstract

Two-wheeled motor vehicles are a major source of urban air pollution. This study investigates the emissions of carbon monoxide (CO) and hydrocarbons (HC) from motorcycles operating within the Environmental Engineering Department of Universitas Tadulako. Emission data were collected using direct measurements with an automotive emission analyzer across various motorcycles differing in age, fuel type, and engine condition. The findings reveal that, although the average emission levels generally meet the national standards (Ministerial Regulation No. 8/2023), motorcycles using lower-grade fuel (Pertalite) emit higher concentrations of CO and HC compared to those using higher-grade fuel (Pertamax). Furthermore, both CO and HC emissions increase with the age and mileage of the vehicle. The correlation analysis indicates that older vehicles and those with higher mileage tend to release more pollutants due to reduced engine efficiency. These results underscore the importance of regular vehicle maintenance, the use of higher-quality fuels, and awareness campaigns to reduce air pollution on campus. The study supports the development of environmentally friendly transportation policies within educational institutions. ASSESSMENT OF TWO-WHEELED VEHICLE EMISSIONS IN THE VICINITY OF THE ENVIRONMENTAL ENGINEERING DEPARTMENT, UNIVERSITAS TADULAKO, INDONESIA
Co-Authors Aditya Prana Iswara Adri Firmansyah Aidil Candri, Dining Akbar, Salman Azaria Al Azhar, Muhammad Reza Alfarishi, Bilal Alvan, Syahreza Ani Purwanti Aningtyas, Vebri Aprilia, Maya Arbintarso, Ellyawan Setyo Arwieny Hanami, Zarah Atika, Liana Aulia Annas Mufti Azizah, Rifka Noor Bambang Winardi Cahya Alam, Firdha Chairunnisa, Nadda Khalila Cionita, Tezara Daudsyah Imami, Ahmad Depri Dewi, Ninne Sevtiana Dhifaf Athiyah Zhabiyan dian febrianti Dion Dion Awfa Ernindah Sormin Ersa, Nanda Savira Fajriharish Nur Awan, Fajriharish Nur Farizal, Teuku Fitria, Laili Fitriyana, Deni Fajar Gultom, Tiara Gustinasari, Kiki Harry Wibowo HASAN, NIA YUNIARTI Hilman, Zaki Husaini, Muhammad Zakki I Wayan Koko Ihsan, Muhammad Faris Ikhwal, M. Faisi Ikhwali, Muhammad Faisi Ilham Nofri Yandra Imami, Ahmad Daudsyah Imelda Masni Juniaty Sianipar Imran, Al Ichlas Istiqomah Shariati Zamani Junaedi, Thomas Kahar Kahar, Kahar Kamal, Mushthofa Kevin Maghrival Khairuni, Zhili Izzadati Kristianto, Sonny Lukman, Mena Fadillia M. Faisi Ikhwali M. Habib Algifari Marbun, Hanna Swesy Masruroh, Heni Maulida, Fatimah Mawaddah, Nurul Meisya Ruth, Gabriella Meisya Ruth Meylis Safriani Moh. Awaludin Adam Muchlis Muchlis Muflihah, Lilih Muhammad Amin Muklis Muklis Mustaqiman, Aulia Nur Nastiti, Almira Davina Novianti, Puteri Denita Novrianty, Irma Nugroho, Agung Nur Novilina Arifianingsih Nur Sakinah Nur, Aulia Mustaqiman Nurul Aulia Larasati Pangestu, Muhammad Puri Dwi Panjaitan, Nahesson Panjaitan, Nahesson Hotmarama Pasaribu, Hugo S. V. Purnawan Purnawan Putri, Regia Afiyanti Qadafi, Muammar Rachmat Mulyana Ragorudin, Abdul Karim Rahmadani, Sarra Ratnaningsih, Wahyu Ridhosari, Betanti Rifka Noor Rozanna Dewi Sahid Samsudin Anis Sari, Mega Mutiara Septiariva, Iva Yenis Shabrina, Husna Muizzati Shofi Talbia, Husna Simanullang, Lillis Siregar, Januar Parlaungan Sofiyah, Evi Siti Sri Rahayu Gusmarwani, Sri Rahayu Sri Sunarsih Suhardono, Sapta Suhodo, Muhammad Adil Setiyanto Suparni Setyowati Rahayu Suryawan, I Wayan Koko Teguh Budi Prijanto, Teguh Budi Tia Dwi Irawandani Tinov, Naufal Tio Katarina Marpaung Trimailuzi Tuti Mutia Ulhasanah, Nova Ulya Bunga, Venny Uma Fadzilia Arifin, Uma Fadzilia Widiatama, Angga Jati Widyarsana, I Made Wahyu Wijayanto, Etanto Heiliano Yasa Palaguna Umar, Yasa Palaguna Zakia Zakia Zhilli Izzadati Khairuni Zubir, Moondra Zurfi, Alfian