Article Per Year (5 Year)
p-Index From 2021 - 2026
2.036
P-Index
This Author published in this journals
All Journal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia IJEMS (Indonesian Journal of Environmental Management and Sustainability) Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam TEKNIKA Jurnal Teknik Kimia Jurnal Abdi Insani Journal of Applied Materials and Technology Seminar Nasional Insinyur Profesional (SNIP) Bulletin of Chemical Reaction Engineering & Catalysis Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran
David Bahrin
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Sriwijaya, Inderalaya – Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Other

Published : 16 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 16 Documents
Search

 1   2 
Trophic Status Monitoring for the Bangka Strait in Indonesia during the COVID-19 Period Using MODIS Data Susanti, Susi; Rendana, Muhammad; Novia, Novia; Bahrin, David
Indonesian Journal of Environmental Management and Sustainability Vol. 8 No. 3 (2024): September
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2024.8.3.110-117

Abstract

Many surface waters in the world are impounded by eutrophication due to the global warming phenomenon. This study analyzed the trophic level in the Bangka Strait, a busy pathway that connects two provinces (Bangka and South Sumatra) of Indonesia, using MODIS-Terra chlorophyll-a (Chl-a) data from the 2020 year. We applied the GIS analysis to generate Chl-a concentration and trophic state maps over the study area. The results of the study revealed that the mesotrophic, eutrophic, and oligotrophic status encompass 50%, 43%, and 7% of the Bangka Strait region, respectively. The highest concentration of Chl-a was observed in May (5.38 g/L), while the lowest was observed in September (3.02 g/L). Our study revealed that the high Chl-a concentration was primarily due to nutrient contributions from South Sumatra rivers. On the other hand, the COVID-19 restriction policy significantly reduced Chl-a from July to October. The trophic state of the Bangka Strait was at a mesotrophic level, and the major contributors to the trophic condition in the strait came from the coasts of South Sumatra, which mostly consisted of agricultural and aquacultural activities. These findings will be useful in developing an effective policy for monitoring and protecting surface waters from eutrophication events.
PENGOLAHAN AIR MENJADI AIR MINUM DENGAN ALAT BERTEKNOLOGI MEMBRAN ULTRAFILTRASI UNTUK SEKOLAH ISLAM TERPADU IZZATUNA PUTRI PALEMBANG SUMATERA SELATAN Aprianti, Tine; Said, Muhammad; Bahrin, David; Selpiana, Selpiana
Jurnal Abdi Insani Vol 12 No 6 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i6.2566

Abstract

Kegiatan pengabdian kepada masyarakat yang dilakukan oleh tim Fakultas Teknik Universitas Sriwijaya dilaksanakan dengan mengolah air menjadi air minum dengan alat berteknologi membran ultrafiltrasi, kegiatan ini diharapkan dapat membantu khalayak sasaran untuk memenuhi kebutuhan air minum layak konsumsi yang dapat juga dijadikan peluang untuk wirausaha air minum isi ulang. Kegiatan Pengabdian kepada Masyarakat ini dilaksanakan di Sekolah Islam Terpadu Izzatuna Putri Palembang, kegiatan ini bertujuan untuk memberi manfaat yang signifikan dan turut membantu dalam meningkatkan kesehatan dan kesejahteraan khalayak sasaran. Untuk mengevaluasi hasil kegiatan, pada akhir kegiatan disebarkan kuesioner sebanyak 40 (empat puluh) lembar ke khalayak sasaran yang mengikuti kegiatan ini. Dari data isian kuesioner yang disebarkan, 80% khalayak sasaran menilai bahwa kegiatan ini sangat bermanfaat, hal ini membuktikan bahwa khalayak sasaran menganggap kegiatan ini sangat bermanfaat.
Analisis Analisis Penerapan Sistem Drainase terhadap Pengendalian Banjir di Kawasan Permukiman Wilayah Golf Permai Kelurahan Talang Ubi Selatan jaya, san jaya; Aminuddin, Kiagus Muhammad; Bahrin, David
TEKNIKA: Jurnal Teknik Vol 12 No 1 (2025)
Publisher : Universitas IBA Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35449/teknika.v12i1.366

Abstract

Salah satu infrastruktur yang digunakan untuk membantu mengurangi risiko banjir adalah saluran drainase. Saluran drainase di kawasan permukiman padat penduduk berfungsi untuk menyalurkan aliran air, baik dari limbah domestik maupun air hujan, menuju tempat pembuangan akhir. Jalan lingkungan Daerah Golf Permai, Kelurahan Talang Ubi Selatan, merupakan salah satu akses masyarakat yang sering mengalami banjir akibat kurang berfungsinya saluran drainase. Hujan berintensitas tinggi yang berlangsung lama dapat menyebabkan air meluap ke area permukiman karena terbatasnya kapasitas saluran serta minimnya akses ke sungai utama akibat tidak terintegrasinya drainase dengan tata ruang wilayah. Penelitian ini bertujuan untuk mengetahui ketepatan pengambilan keputusan pembangunan drainase sebagai salah satu faktor pengendalian banjir dengan daya tampung genangan yang memadai serta menilai ketepatan pembangunan drainase dari perspektif hidrologi dan tata ruang. Pendekatan Fishbone Analysis terbukti efektif dalam mengidentifikasi faktor-faktor utama penyebab banjir secara sistematis, seperti teknis, tata ruang, lingkungan, dan partisipasi masyarakat. Kelebihan metode ini adalah kemampuannya menyusun hubungan sebab-akibat yang jelas dan mendalam untuk mendukung pengambilan keputusan. Hasil penelitian ini menunjukkan bahwa sistem drainase di Jalan Akses Golf Permai, Kelurahan Talang Ubi Selatan, Kabupaten Penukal Abab Lematang Ilir, secara umum masih mampu menampung debit limpasan hujan berdasarkan hasil analisis hidrologi dan hidraulika menggunakan metode Manning, dimana hasil perhitungan debit rencana sebesar 0,121 m³/dtk berada dalam kapasitas saluran eksisting, sehingga dapat dikatakan bahwa saluran mampu berfungsi efektif pada kondisi hujan normal. Namun, analisis curah hujan periode 2015–2024 mengindikasikan peningkatan risiko banjir pada tahun 2023–2024, dipicu oleh curah hujan ekstrem, elevasi air sungai, serta keterbatasan distribusi jaringan drainase di kawasan tersebut. Kata kunci: saluran drainase, banjir, Fishbone Analysis, hidrologi, tata ruang
Optimizing Bio-Oil Yield from Pyrolysis of Spent Bleaching Earth for Liquid Fuel Production Okzani, Syahrial; Said, Muhammad; Bahrin, David
Rekayasa Vol. 22 No. 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v20i2.10398

Abstract

Spent Bleaching Earth is an industrial waste generated primarily from vegetable oil processing and contains     20-40% oil by weight, which poses a fire hazard due to the risk of spontaneous combustion. Commonly, Spent Bleaching Earth is processed using extraction methods with solvents like n-hexane, methanol, or steam. However, transforming SBE into liquid fuel via pyrolysis remains underexplored. This research aims to convert into liquid fuel through pyrolysis. The process was conducted at 600 °C for 90 min, resulting in pyrolysis oil with a density of 992.8 kg/m³, a viscosity of 31.21 cSt, a calorific value of 40.63 MJ/kg, and a flash point of 36 °C. Additionally, the oil contained 21.18% phenol compounds. The remaining material from the process, including char, constituted 54% of the original spent bleaching earth mass. These results demonstrate the feasibility of using pyrolysis to convert into a valuable liquid fuel, offering a sustainable approach to manage this hazardous industrial waste while producing energy-rich byproducts. This study underscores the potential of pyrolysis as a waste-to-energy solution and a safer alternative to traditional disposal methods for Spent Bleaching Earth.
Fly ash adsorbent for ph improvement and manganese reduction in acid mine drainage Nurlela; Agustina, Tuty Emilia; Arita, Susila; Bahrin, David; Gayatri, Rianyza
Journal of Applied Materials and Technology Vol. 7 No. 1 (2025): September 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.1.41-48

Abstract

Metal solid waste from coal combustion (fly ash) is abundant in Indonesia, as an effective and economical adsorbent in neutralizing acid mine drainage (AMD). Given that the continuous utilization of coal produces environmental challenges in the form of AMD containing acid residues and heavy metals such as manganese (Mn), an appropriate treatment solution is required. The adsorption method was chosen due to its simplicity, cost effectiveness, and ability to remove heavy metal pollutants. The purpose of this research is to characterize fly ash before and after heating by SEM and XRD analysis, and evaluate the effect of fly ash physical activation temperature by heating at 100oC and 200oC for an interval of 60 minutes on the characteristics and adsorption ability of fly ash. In addition, this study also evaluated the effectiveness of the adsorbent mass (fly ash before heating and after heating) in increasing pH and reducing Mn concentration in AMD so that it meets the quality standards of Class 1 river water. The results obtained from this study show a fundamental difference in the properties of fly ash before and after heating. Based on BET analysis, the physical activation process resulted in pore enlargement (0.196 nm) and increased surface area of the adsorbent (0.847 m2/g), which significantly affected its binding capacity to solutes (adsorption capacity). The application of fly ash as an adsorbent showed the ability to increase the pH value of acid mine drainage towards neutral conditions. The process of reducing heavy metal ions Mn by using 50 g of fly ash heating at 100oC and 200oC, resulted in a removal percentage of 94.74% and 98.44%. It is hoped that this research can provide innovative and sustainable AMD treatment and increase the use value of fly ash waste.
Properties and Utilization of Fly Ash for Treating Acid Mine Drainage Nurlela; Agustina, Tuty Emilia; Arita, Susila; Bahrin, David; Fatimura, Muhrinsyah; Masriatini, Rully; Gayatri, Rianyza
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 4 (2025): December
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.4.223-232

Abstract

The combustion of coal in power plants (PLTU) generates fly ash containing silica dioxide (SiO?) and alumina (Al?O?), which exhibit promising properties as adsorptive materials. Fly ash, typically regarded as an industrial by-product, has been widely explored for its application as an adsorbent in wastewater purification. One of the most challenging wastewaters is acid mine drainage, characterized by strong acidity (pH < 5), residual contaminants, and elevated concentrations of heavy metal ions such as manganese (Mn) and iron (Fe). When released untreated, this effluent poses significant risks to both surface and groundwater quality in mining areas. This study focuses on the characterization and utilization of fly ash as an adsorbent to neutralize acidity and reduce Mn and Fe concentrations in acid mine drainage. The material was characterized using SEM-EDX and XRD techniques, followed by adsorption experiments. To enhance its properties, fly ash underwent physical activation through heating at 100 °C for 60 minutes. The activation process modified its structure, expanding pore volume and increasing surface area, thereby improving adsorption performance. The experimental results revealed significant differences in the properties of fly ash before and after activation. Activated fly ash effectively raised the pH of acid mine drainage to near-neutral conditions while achieving removal efficiencies of 96.61% for Mn and 83.33% for Fe using 50 g of adsorbent. These findings highlight the potential of fly ash as a low-cost and effective material for acid mine drainage treatment, both for acidity control and heavy metal removal.
Co-Authors Aditia H Akbar Agustina Agustina Aminuddin, Kiagus Muhammad Amir Arifin Aprianti, Tine Astuti Ayu Permatasari Azka R Antari Barlin Oemar Conniwanti Cundari, Lia Dikpride Despa Dwiki Ramadhan Faras Saskia Samara Farra Unzilah Kendari Putri Fatimura, Muhrinsyah fauzan Fauzan Fitri Hadiah Gayatri, Rianyza Herri Susanto Indira Nur Sakinah jaya, san jaya Leily Nurul Komariah Machmud Hasjim Muhammad Abil Rifqy Muhammad Faizal Muhammad Reza Tinambunan Muhammad Ridho Habibie Muhammad Rizwan MUHAMMAD SAID Novia Novia Nurlela Okzani, Syahrial Rahayu, Atika rendana, muhammad Rizka Amanda RR Yunita Bayu Ningsih Rully Masriatini S. Subagjo Selpiana, Selpiana Selpiana, Selpiana Susi Susanti Susila Arita Tri Julieta Putri Trisya Septiana Tuti Indah Sari, Tuti Indah Tuty Emilia Agustina