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All Journal Indonesian Journal of Geography Komunikasi Fisika Indonesia Jurnal Wilayah dan Lingkungan Jurnal Pengabdian UntukMu NegeRI Dinamisia: Jurnal Pengabdian Kepada Masyarakat JURNAL PHOTON Jurnal Rekayasa Hijau Jurnal Ilmu Fisika Jurnal Pengabdian Masyarakat IPTEKS Asian Journal of Aquatic Sciences Jurnal Pengendalian Pencemaran Lingkungan (JPPL) PROCEEDING OF INTERNATIONAL CONFERENCE ON BUSINESS MANAGEMENT AND ACCOUNTING
Sri Fitria Retnawaty
Program Studi Fisika, FMIPA Dan Kesehatan Universitas Muhammadiyah Riau
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Nursing Physics Social Sciences Other

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Desain Alat Elektrokoagulasi Portabel untuk Penurunan Total Organic Carbon (TOC) pada Limbah Cair Bengkel Kendaraan Otomotif Pratama, Doni; Retnawaty, Sri Fitria; Fitri, Yulia; Rizky, Mende Karina; Doni Pratama
Jurnal Pengendalian Pencemaran Lingkungan (JPPL) Vol. 7 No. 1 (2025): JPPL, Maret 2025
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M), Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/jppl.v7i1.2442

Abstract

The treatment of wastewater from automotive workshops presents a significant environmental challenge due to the high levels of organic materials, including Total Organic Carbon (TOC). One innovative and efficient solution is the use of electrocoagulation methods. This study aims to design a portable electrocoagulation device and determine an efficient time for reducing TOC levels. In this research, aluminum electrodes are used to induce electrochemical reactions, generating metal ions that can adsorb and precipitate contaminants in workshop wastewater. Experiments were conducted with different electrocoagulation process durations, specifically 3 hours and 5 hours, to measure TOC reduction efficiency. Laboratory test results indicate that electrocoagulation for 3 hours reduced TOC levels by 55.7%, while the 5-hour process achieved an efficiency of 86.4%. This process effectively meets the standard quality threshold for TOC, which is 110 ppm. The advantages of electrocoagulation lie in its high efficiency, lower operational costs, and the absence of the need for additional chemicals, making it a promising solution for wastewater treatment in workshops. This research contributes through an innovative design that can be applied on a small scale, particularly for automotive workshops that need an effective and economical wastewater treatment technology. Keywords: Electrocoagulation, Efficiency, Workshop Wastewater Treatment, Total Organic Carbon (TOC
Sistem Audit Intensitas Konsumsi Energi (IKE) Listrik Swalayan Fitri, Yulia; Saputra, Yos Sudarso; Retnawaty, Sri Fitria
Photon: Jurnal Sain dan Kesehatan Vol. 13 No. 1 (2022): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v13i1.3768

Abstract

Dalam penelitian ini telah dibangun Sistem Audit Intensitas Konsumsi Energi (IKE) Listrik Swalayan/Supermarket berbasis GUI Matlab (Studi Kasus Indomaret Jalan Pepaya Pekanbaru). Sistem audit yang dibuat memiliki kelebihan desain yang menarik, resolusi gambar yang tinggi, dapat menghitung jumlah kWh/perhari dan kWh /tahun secara otomatis dan memudahkan dalam melakukan audit energi listrik secara mandiri. Hasil Audit Energi Listrik menggunakan sistem Audit Intensitas Konsumsi Energi (IKE) di Indomaret Jalan Pepaya Pekanbaru sebesar 400.135 kWh/tahun dan termasuk boros. Untuk nilai error sistem audit energi listrik sebesar 0.00002 % .
Pemodelan Emisi Gas CO2 dari Lokasi Tempat Pembuangan Akhir di Kota Pekanbaru menggunakan Dispersi AERMOD Rahmadani, Nofia; Fitri, Yulia; Retnawaty, Sri Fitria; Lestari, Dinda; Mulyani, Sri; Selvia, Selvia
Jurnal Wilayah dan Lingkungan Vol 12, No 2 (2024): Agustus 2024
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jwl.12.2.163-176

Abstract

Dekomposisi anaerobik senyawa organik di Tempat Pembuangan Akhir (TPA) sampah bertanggung jawab atas timbulnya gas rumah kaca yang dapat berkontribusi terhadap pemanasan global. Penelitian ini bertujuan untuk mengestimasi jumlah produksi gas CO2 dari tahun 2018 hingga 2068 di TPA Muara Fajar 2 Kota Pekanbaru, Provinsi Riau. Pertama, kami mengumpulkan semua informasi yang diperlukan, termasuk data jumlah sampah padat yang dibuang ke TPA Muara Fajar 2 Pekanbaru. Selanjutnya, kami menganalisis data tersebut  menggunakan model LandGEM untuk memperkirakan jumlah produksi gas CO2 yang dipancarkan ke atmosfer dari TPA Muara Fajar 2 Pekanbaru. Dalam penelitian ini, model dispersi AERMOD digunakan untuk dispersi CO2 dari lokasi TPA Muara Fajar 2 Pekanbaru dalam kondisi tahunan yang berbeda. Distribusi emisi gas CO2 dilakukan secara tahunan mulai dari tahun 2018 hingga 2022 yang berasal dari TPA tersebut. Hasil analisis menunjukkan bahwa produksi gas CO2 mencapai puncaknya pada tahun 2049. Jumlah Gas CO2 akan menurun setelah 30 tahun pertama. Penurunan jumlah gas CO2 dipengaruhi beberapa faktor, salah satunya adalah tingkat biodegradasi. Hasil dispersi yang diperoleh menunjukkan bahwa dispersi CO2 dipengaruhi oleh arah angin. Pemodelan AERMOD menunjukkan bahwa konsentrasi tertinggi untuk emisi CO2 terjadi pada tahun 2022 yaitu sebesar  185.961 μg/m3.
Mentoring-Based Coaching to Form Innovative and Independent Student Entrepreneurship: Pembinaan Berbasis Pendampingan untuk Membentuk Kewirausahaan Mahasiswa yang Inovatif dan Mandiri Denny Astrie Anggraini; Sri Fitria Retnawaty; Wan Laura Hardilawati; Yeeri Badrun; Retno Tri Wahyuni
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 6 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i6.23201

Abstract

Universitas Muhammadiyah Riau (UMRI), one of the campuses that supports development programs, has carried out planning and coaching students to become entrepreneurs. This can be seen from the level of participation and success of UMRI students in several student competitions, such as PKM-Entrepreneurship, P2MW, and Entrepreneurship Award. However, after the competition, many student businesses closed due to inadequate business management, equipment, and other factors. Therefore, this coaching program was carried out. The methods used are socialization, selection, provision, increasing tenant capacity (entrepreneurship training and internships), providing science and technology as well as business capital, mentoring, and evaluation monitoring. As a result of this activity, there are 20 student tenants who partner with 10 types of products. There has been an increase in tenant capacity with training, onboarding (internships), mentoring, and application of science and technology, as well as capital provided. It is hoped that this increase in tenant capacity will also improve their business skills so that their business can run well.
Emission Dispersion Pattern Analysis of Palm Oil Mill Boiler & Genset Chimneys Using AERMOD Nasution, Renni Wardiah; Fitri, Yulia; Retnawaty, Sri Fitria; Fatiya; Putri, Reza Pratama; Daulay, Rosni Amelia
Photon: Jurnal Sain dan Kesehatan Vol. 16 No. 2 (2026): Journal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT X is one of the palm oil mills located in the Tenayan Industrial Estate (KIT). Emission sources originate from boiler and generator stacks that produce PM, SO₂, NO₂, CO, and NOₓ. This study aims to analyze the direction of emission distribution from boiler and generator stacks using the AERMOD model. In addition, the study analyzes differences in emission distribution patterns during the dry and rainy seasons. Modeling was conducted using AERMOD by incorporating emission source parameters, meteorological data obtained from the Climate Data Store (CDS), and topographic data from Google Earth Pro. The modeling process consisted of AERMET, AERMAP, and AERMOD stages. The results indicate that the annual maximum concentrations of PM, SO₂, NO₂, CO, and NOₓ are 1,24 μg/m³, 2,17 μg/m³, 4,33 μg/m³, 0,0034 μg/m³, and 0,065 μg/m³, respectively. The annual emission distribution pattern extends toward the southwest, with seasonal variations observed between the dry and rainy seasons.
Co-Authors - Kadir - Misrawati - Sudarto - Sumardilan - Sumiati - Tusiyem -, Yeeri Badrun Ahmad Nurhuda Aji Suroso Amiroh Amiroh, Amiroh Anak Agung Istri Sri Wiadnyani Anggi Nadia Putri APRIYUNITA, SONIA - Daulay, Rosni Amelia Delovita Ginting, Delovita Denny Astrie Anggraini Denny Astrie Anggraini, Denny Astrie Desnelita, Yenny doni pratama Doni Pratama, Doni Edi Ismanto Elsie Fatiya ISRAWATI HARAHAP Kadir, - Laras Sita Widara Lestari, Dinda Lidya Rahayu Lidya Misrawati, - Mubarak Mubarak Nasution, Renni Wardiah Neneng Fitrya Noni Febriani Noni Febriani Noni Febriani Nopripa Herlina Novia Gesriantuti Nurul Zecha Octalina, Fazrianty Purwati, Astri Ayu Putri, Reza Pratama Rahmadani, Nofia Retno Tri Wahyuni Rifardi Rizky, Mende Karina Romi Fadli Syahputra Saputra, Yos Sudarso Selvia Selvia Shabri Putra Wirman Siswahyudianto Sri Mulyani Sri Mulyani Sudarto, - Sumardilan, - Sumiati, - Suriyanti, Linda Hetri Suroso, Aji Tusiyem, - Uswatun Hasanah Viviana Lubis Wan laura Hardilawati Yeeri Badrun Yulia Fitri Yulia Fitri Yunita, Esy Zecha, Nurul