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All Journal Makara Journal of Technology kawanad PESARE: Science and Engineering Service Journal JURNAL REKAYASA KIMIA & LINGKUNGAN
Izarul Machdar, Izarul
Jurusan Teknik Kimia Fakultas Teknik Universitas Syiah Kuala
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Public Health

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CDM Potential in Palm Solid Waste Cogeneration as an Alternative Energy in Aceh Province Mahidin, Mahidin; Machdar, Izarul; Faisal, Muhammad; Nizar, Muhammad
Makara Journal of Technology Vol. 16, No. 2
Publisher : UI Scholars Hub

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Abstract

Empty Fruit Bunch (EFB) as a solid waste in Crude Palm Oil (CPO) industry does not utilized yet as an alternative energy source to generate electricity. It is well known that use of solid wate (biomass) as an energy source is part of the Clean Development Mechanism (CDM) scheme due to direct reduction of Green House Gases (GHGs) emission and provide a direct contribution to sustainable development. Utilization of EFB as a source of energy is very potential to be implemented in Aceh since this province has 25 CPO Mills at the moment which actively produce about 870,000 ton EFB per year. This study is subjected to evaluate the potency of electricity from EFB theoretically by using primary data (survey data) and secondary data. Potency of EFB and number of electricity produced from that EFB are estimated using primary data and direct combustion scenario, respectively. Calculation methods for emission reduction acieved are done by AMS-I.D: Renewable electricity generation to the grid and AMS-III.E: Methane emissions avoided from dumping at a solid waste disposal site. The result of this investigation shows that energy consumption in 25 CPO Mills is 45 GW(e)h per year. Evidently, the number of energy/electricity which is potential to be produced by using 75% EFB is 1,047 GWh per year; so that the GHGs emission reduction up to 171,232.21 tCO2e per year.
Perawatan Pipa untuk Persawahan Limpok Kabupaten Aceh Besar Ali, Masri; Tajuddin; Iskandar; Akhyar; Syahriza; Husaini; Machdar, Izarul
Kawanad : Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1 (2023): March
Publisher : Yayasan Kawanad

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56347/kjpkm.v2i1.101

Abstract

Charity activities in Limpok Village, Aceh Besar District, Darussalam District, Aceh State. This activity was carried out because there is a small river in the village and the water is not yet available as a source of water for the rice fields. The purpose of this activity is to obtain and distribute rice water to increase farmers' yields. As for the stage of activities, we hold round-table discussions with local residents about the water demand of paddy fields, investigate the locations of PVC pipes, and work with local residents to lay PVC pipes. This activity demonstrates the great enthusiasm of residents to participate in a series of community service activities. As a result of this activity, we succeeded in pumping up water from a small river to the rice fields, which had previously depended on rainwater. This charity should therefore serve as an example for other villages with similar problems and demonstrate the importance of cooperation between communities and government agencies in building and improving the quality of life in the region.
Intervensi Sistem Produksi Arang Briket Pada Unit Usaha Arang di Dusun Blang Bintang, Desa Blang Thuy, Kabupaten Aceh Besar Melalui Penggunaan Pencetak Arang Briket Sistem Ulir Kontinyu Machdar, Izarul; Rinaldi, Wahyu; Thalib, Sulaiman
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 2, No 1 (2024): Februari 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v2i1.36785

Abstract

The implementation of technological intervention in a coconut shell charcoal enterprise, facilitated by the integration of a screw briquette machine, has been a transformative initiative undertaken by the Naturi group in Blang Bintang, Blang Thuy Village, Aceh Jaya Sub-district, Aceh Besar District. The comprehensive approach to this intervention included a thorough site survey, extensive socialization efforts, meticulous procurement of equipment and materials, and dedicated training activities. The socialization phase, spanning a duration of two months, was instrumental in ensuring that the aims, objectives, and targets of the planned activities were not only understood but also internalized by the participants. The success of this phase lay in its ability to align with predefined scenarios, fostering a smooth and effective execution of subsequent activities. Results obtained from the intervention showcase the participants' successful acceptance and proficient execution of the introduced technologies. Given the potential risks associated with the handling of the delivered equipment, prioritizing work safety emerged as a critical aspect of the initiative. Looking forward, the focus of the initiative extends beyond its initial phase. Future considerations include strategies to enhance production capacity and the provision of adequate drying areas to meet growing demands. To ensure the longevity of the project, a collaborative effort between the implementer and participants has resulted in the establishment of a dedicated discussion forum through digital media. This platform serves as a dynamic space for ongoing dialogue, knowledge exchange, and the continuous improvement of the technological intervention.
ANALYSIS OF WATER QUALITY AND QUALITY STATUS IN ACEH RIVERS BASED ON ENVIRONMENTAL POLLUTION INDEX Rahmadi, Dicky; Machdar, Izarul; Syaubari, Syaubari
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.28865

Abstract

The rapid development of industrialization and urbanization in the world impact increased water pollution. Human activities, such as dam constructions, excessive water consumption, severance of river flows, compaction of riverbanks, and excessive use of riverbed vegetation, disrupt river flow and alter the original hydrological cycle. In response to these conditions, this study aims to analyze water quality and river quality status to set up a watershed environmental management strategy in Aceh Province as a case study. River water quality was analyzed descriptively by comparing the results of laboratory tests with parameters, namely TSS, pH, BOD, COD, DO, total phosphate, nitrate, and fecal coli. These parameters were then transformed into the environmental index (Water Quality Index and Pollution Index). It was found that Water Quality Index (WQI) results are shown from 50 to 70. WQI with the Good category is at Kr. Weh which is in the Central Aceh city. The medium-less type is found in 10 watersheds. The water quality with the category of Less is found at 3 points, namely Kr. Aceh, Cr. Doy, and Cr. Daroy. The quality of the river water in the Aceh region, from upstream to downstream, has decreased in quality with a lightly polluted status based on the Minister of Environment and Forestry of the Republic of Indonesia No. 27 of 2021 for class II.
The Improvement of Hydrophilic Property of Polyethersulfone Membrane with Chitosan as Additive Fathanah, Umi; Machdar, Izarul; Riza, Medyan; Arahman, Nasrul; Lubis, Mirna Rahmah; Yusuf, Mukramah
Jurnal Rekayasa Kimia & Lingkungan Vol 15, No 1 (2020): Jurnal Rekayasa Kimia & Lingkungan (June, 2020)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v15i1.15916

Abstract

Membrane technology has been implemented broadly for clean water treatment. To produce a better membrane, modification is carried out by adding chitosan into a polymer solution. Materials used in this research are polyethersulfone (PES) 18%, the n-methyl pyrrolidone solvent modified with a chitosan solution (at 0.2 1 wt%) as an additive, and deionized water as a non-solvent. The membrane synthesis is carried out with the non-solvent induced phase separation method of blending the polymer. Membrane characterization includes functional group analysis, morphological structure, and water contact angle. Membrane performance is monitored at the filtration process, resulting in the permeability coefficient, and for the rejection of a contaminant (humic acid) with dead-end filtration. Research results show that the modified membrane characterization has an asymmetric morphological structure with a thinner top layer, and the membrane sublayer has a finger-like macrovoid structure with a larger size as compared to the original PES membrane (without the chitosan solution addition). The chitosan additive into the PES membrane improves the membranes hydrophilic property. The highest value of the permeability coefficient is achieved with a 1% chitosan addition, which provides a permeability coefficient value of 10.524 L/m2.h.bar and a rejection coefficient of 70.3%.
Pengaruh Nozzle Terhadap Aspek Hidrodinamika Kinerja Kolom Gelembung Pancaran Nugroho, Didiek Hari; Adisalamun, Adisalamun; Machdar, Izarul
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 2 (2014): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i2.2424

Abstract

Kolom gelembung pancaran merupakan salah satu alat perpindahan massa antara fasa gas dan cair. Penelitian ini bermaksud untuk mempelajari pengaruh nozzle terhadap aspek hidrodinamika antara lain: kedalaman penetrasi gelembung (Z), holdup gas (eg), dan laju alir volumetrik gas entrainment (Ql) yang terjadi dalam kolom gelembung pancaran. Variabel proses yang dipelajari antara lain laju alir volumetrik cairan (10-50 L/menit), ukuran diameter nozzle (0,008-0,0127 m), dan tinggi nozzle (0,125-0,25 m). Hasil penelitian memperlihatkan bahwa ukuran diameter nozzle semakin kecil dan laju alir volumetrik cairan yang semakin besar menghasikan laju alir volumetrik gas entrainment, holdup gas, dan kedalaman penetrasi gelembung yang semakin besar.
Sinergi Perguruan Tinggi, Industri, UMKM, dan Masyarakat dalam Pemanfaatan Limbah Aspal dan Limbah Karung Pupuk untuk Perbaikan Jalan Desa di Kabupaten Aceh Besar Machdar, Izarul; Ali, Masri; Hajni, Nurul
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 3, No 3 (2025): Oktober 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v3i3.49959

Abstract

This community engagement initiative was designed to repurpose plastic waste from used fertilizer sacks and reclaimed asphalt pavement as composite materials for repairing rural roads in Gampong Blang Krueng, Baitussalam Subdistrict, and Gampong Lamteuba Droe, Seulimuem Subdistrict, Aceh Besar Regency. The program addressed two major challenges: the growing accumulation of plastic waste that harms the environment and the deteriorating condition of local roads due to aging and frequent heavy rainfall. The activity was carried out through several key stages, including problem identification, community consultation, preparation of tools and materials, on-site implementation, and post-activity evaluation. The plastic waste obtained from fertilizer sacks was cleaned, shredded into small fragments, and then blended with hot asphalt and reclaimed asphalt pavement at around 160C before being laid and compacted on the road surface. Findings from the implementation revealed that the plasticasphalt blend produced a stronger, smoother, and more resilient road surface capable of withstanding tropical weather conditions and light vehicular traffic. Beyond the technical outcomes, the initiative also fostered greater community awareness of sustainable plastic waste management and enhanced collaboration among universities, industries, small and medium enterprises, and local residents in promoting the use of environmentally friendly technologies for infrastructure improve-ment.
Co-Authors Adisalamun Adisalamun Akhyar Ali, Masri Didiek Hari Nugroho Hajni, Nurul Husaini ISKANDAR Mahidin Mahidin Medyan Riza Mirna Rahmah Lubis Muhammad Faisal Muhammad Nizar Nasrul Arahman Rahmadi, Dicky Sembiring, Rinawati Sulaiman Thalib Syahriza Syaubari Syaubari Tajuddin Umi Fathanah Wahyu Rinaldi Yusuf, Mukramah