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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Ilmu Lingkungan Jurnal Dampak IJHCM (International Journal of Human Capital Management) Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Serambi Engineering Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Jurnal Profesi Insinyur Indonesia JURNAL REKAYASA KIMIA & LINGKUNGAN
Budi Prasetyo Samadikun
Dept. Of Environmental Engineering, Faculty Of Engineering, Diponegoro University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Transportation

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Biodrying Performance and Greenhouse Gas Emissions through Hot Air Aeration in Solid Waste Conversion Badrus Zaman; Nurandani Hardyanti; Wiharyanto Oktiawan; Budi Prasetyo Samadikun; Purwono Purwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Article in Press 2026 (For Upcoming Issue)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Biodrying can convert solid waste into Refuse Derived Fuel (RDF) as an alternative to fossil fuels. The conversion of solid waste to RDF with a moisture content of 10-30% generally takes 21 days. This study aims to analyze greenhouse gas emissions and biodrying performance by applying hot air aeration to accelerate solid waste conversion into RDF. Laboratory-scale investigation used a bio-drying reactor and a solid waste mixture. Hot air was produced by burning wood charcoal (X1) and mixture of wood charcoal and sawdust (X2). The research showed that hot air aeration systems are more efficient and effective at converting solid waste into RDF. Water content of solid waste reduce from 50% to 34.29% after 60 minutes at 47-80oC. N2O emissions were lower when the hot air source came from burning X1. CO2 emissions were lower when the hot air source came from burning X2. The amount of electrical power required to burn one kg of X1 and X2 is 0.0135 and 0.018 kWh, respectively.
Planning Sludge Bioconversion Using Black Soldier Fly Larvae in Tofu Production Centers Budi Prasetyo Samadikun; Sri Sumiyati; Bimastyaji Surya Ramadan; Lutfiana Anisa; Chintya Putri Agustin; Irfan Tawakkal
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 2 (2026): July 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

Sugihmanik Village, Tanggungharjo District, Grobogan Province, is a major tofu-producing area affiliated with 20 MSMEs and the Waste Transportation Authority (PLTA). Although tofu contributes to the local economy, poor wastewater management from fish farming installations can cause environmental issues. The objective of this study was to develop an environmentally friendly and sustainable wastewater management system based on black solid fuel (BSF). The research methodology included water consumption levels and quality, steam generation, and the development of a BSF bioconversion system. The test results showed that the hydroelectric power plant produced 694.21 kg/day (0.68 m3/day) from the wastewater treatment process. The proposed model utilizes the transition of wastewater and the wastewater environment in the BSF ecosystem. This process produces valuable products, including soft BSF larvae as a protein source and BSF waste as raw material
Supporting SDG 11 Through Green Stormwater Infrastructure: SWMM-Based Flood Mitigation in a Tropical Watershed Anik Sarminingsih; Nurhaliza Prasetyani; Andito Dharma Atmaja; Adrian Hartanto; Budi Prasetyo Samadikun
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.15480

Abstract

The study sub-watershed covers 3475 ha with a main river length of 9.03 km. Rapid land-use change—residential areas grew by 623.84 ha while rice paddies declined by 1390.40 ha between 2013 and 2023—has reduced infiltration areas, increased impervious cover, and intensified peak runoff. Existing drainage infrastructure is insufficient to convey the 2-year design discharge, resulting in recurrent downstream flooding. This study analyzes existing hydrological and hydraulic conditions and designs rainwater management solutions through Green Stormwater Infrastructure (GSI) for flood mitigation and groundwater conservation. Design rainfall was estimated using Log Pearson III frequency analysis, while runoff and hydraulic responses were simulated using EPA SWMM 5.2. Three GSI alternatives were evaluated: 3946 infiltration wells reduced peak flood discharge by 15.64%; 37 retention ponds reduced peak flood discharge by 47.48%; and a combined system of 3181 infiltration wells and 33 retention ponds achieved the highest reduction of 64.11%. Channel normalization of the critical river segment (2U–3U) is essential regardless of the GSI alternative selected. The combined alternative is recommended as it simultaneously addresses flood peaks and groundwater recharge
Co-Authors Adinda Putra Yuwono Adinda Ragil Saputri Adrian Hartanto Andito Dharma Atmaja Anik Sarminingsih, Anik Ardhianto Gutomo Wisnupradhono Aries Susanty Arumdani, Indah Sekar Arya Rezagama Atiya Nurul Jusihdani, Atiya Nurul Bakti Setiawan Bernadinus Gunawan Broto Miseno Chintya Putri Agustin Choirul Basyar Clarisca, Vio Alma Dea Wijayanti Didin Agustian Permadi Dwi Siwi Handayani Erina Dwi Rumanti Fathan Syahreza Pratama Haryono Setiyo Huboyo Haryono Setiyo Huboyo Irfan Tawakkal Joyosemito, Ibnu Susanto Laksana, Muhamad Permana Lutfiana Anisa Marcal de Araujo Pereira Babo Martins Mochtar Hadiwidodo Muhammad Agung Wibowo Muhammad Arief Budihardjo Novianto, Deny Nugroho, Agung Nurandani Hardyanti Nurhaliza Prasetyani Okto Risdianto Manullang Pertiwi Andarani Pramesti, Ajeng Lakshita Purwono Purwono R. Rijanta Rahayu Puji Safitri Rahmawati, Fauziyah Ramadan, Bimastyaji Surya Ratna Kustanti Saputra, Mohamad Handri Silviana Siswahyudianto Sri Sumiyati Sudarno Sudarno Sudarno Sudarno Sudibyakto Sudibyakto Syafrudin Syafrudin Wahyuni, Retno Hari Wicaksono, Surya Adi Wiharyanto Oktiawan Wiwandari Handayani Yustina Metanoia Pusparizkita ZAMAN, Badrus Zumrotus Sa'adah