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All Journal PEDULI: Jurnal Imiah Pengabdian Pada Masyarakat Jurnal Teknik Kimia dan Lingkungan
Iswara, M. Agung Indra
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Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Engineering Materials Science & Nanotechnology Social Sciences

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PENDAMPINGAN SISTEM PENGELOLAAN KEUANGAN BERBASIS SPREADSHEET BAGI GURU MI DARUSSALAM JATIGUWI Sa'diyah, Khalimatus; Suharti, Profiyanti Hermien; Hidayati, Mutia Devi; Iswara, M. Agung Indra
PEDULI: Jurnal Ilmiah Pengabdian Pada Masyarakat Vol 5 No 1 (2021)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/peduli.v5i1.318

Abstract

MI Darussalam Jatiguwi is one of the MI’s in Malang Regency. Many problems are faced by the institution, one of which is the limited number and competence of teachers or teaching staff and the lack of use of information technology to support activities financial management system in elementary school. The purpose of implementing this Community Service Activity (PkM) is the revitalization and development of MI Darussalam teachers related to a SpreadSheet-based financial management system mentoring workshop. The implementation of PkM is carried out by giving live lectures and demonstrations of using applications to manage madrasah finances. The PkM activity was held in the MI Darussalam Jatiguwi building and was attended by the PkM Team and students of the Chemical Engineering Department as well as teachers and staff of MI Darussalam Jatiguwi. This PkM activity pays attention to the health protocol, namely the participants involved are measured their body temperature, before entering the room clean their hands and must wear masks during the activity. The event started with an opening by the Chairman of the MI Darussalam Foundation, followed by remarks by representatives of the PkM Team, a symbolic handover of computer grants and the provision of materials. Participants participated enthusiastically.
Characterization of Bio-Oil and Bio-Asphalt Produced Through Catalytic Pyrolysis of Different Biomass Feedstocks Dewajani, Heny; Irfin, Zakijah; Iswara, M. Agung Indra; Ramadhana, Rucita; Wahyudi, Moch. Ikhsan; Riris, Farikhatul Iza
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7610

Abstract

Asphalt is an aggregate binder in road pavement construction derived from the residue of the petroleum fractionation process, a non-renewable natural resource. Reliance on petroleum asphalt leads to resource scarcity and increased production costs. One alternative to reduce this dependence is the use of bio-asphalt substitutes, which utilize renewable natural resources derived from biomass. The abundance of biomass such as coconut shells, sawdust, and coffee husk in East Java, Indonesia, makes it a promising resource for bio-asphalt synthesis. This study analyzes the effect of biomass types and catalyst mass ratios on the characteristics of bio-asphalt from bio-oil pyrolysis and its mixture with petroleum asphalt, specifically the penetration (pen) 60/70. The research stages include biomass preparation, zeolite catalyst activation, biomass pyrolysis into bio-oil, evaporation into bio-asphalt, and mixture analysis. Optimal characteristics were achieved using a 6% w/w coconut shell biomass catalyst, resulting in a bio-oil yield of 47.27% and a density of 1.060 g/mL. The bio-asphalt yield was 3.41% when mixed with petroleum asphalt pen 60/70. The bio-asphalt exhibited a penetration value of 66.35, a softening point of 52°C, and a density of 1.042 g/cm³, in accordance with the Indonesian National Standard (SNI) 8135:2015.
Co-Authors Dewajani, Heny Hidayati, Mutia Devi Irfin, Zakijah Profiyanti Hermien Suharti Riris, Farikhatul Iza Rucita Ramadhana Sa'diyah, Khalimatus Wahyudi, Moch. Ikhsan