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All Journal Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Cokroaminoto Journal of Chemical Science Jurnal Abdimas Indonesia : Jurnal Abdimas Indonesia ARRUS Journal of Engineering and Technology Al-Irsyad: Journal of Education Science Jurnal Multidisiplin West Science Jurnal Pengabdian West Science
Sri Magfirah HS
Program Studi Teknik Lingkungan, Universitas Syekh Yusuf Al Makassari Gowa
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Public Health Social Sciences Other

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Journal : ARRUS Journal of Engineering and Technology

 1 
Utilizing Sediment Microbial Fuel Cells (SMFCs) for Bioremediation in Coral Transplantation at Samalona Island Sri Magfirah HS; Surya Dharma; Mudasir Zainuddin
ARRUS Journal of Engineering and Technology Vol. 4 No. 2 (2024)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech3147

Abstract

This study explores the potential of Sediment Microbial Fuel Cells (SMFCs) in the bioremediation of coral transplantation environments at Coral Garden Samalona, Samalona Island, Makassar. An experimental approach using marine aquariums was employed to assess the effects of SMFCs on the coral environment. Physicochemical parameters such as temperature, pH, salinity, and total dissolved solids (TDS) were monitored in real time using IoT technology. Statistical analysis using the Mann-Whitney test revealed significant effects of SMFCs on these parameters, with Asymp. Sig (2-tailed) < 0.05, revealing positive changes. The pH remained stable in an alkaline range (8.16-8.36), while TDS and salinity decreased by 3.19% and 15%, respectively. However, challenges related to temperature fluctuations in the SMFC group, likely due to microbial activity, were noted, as evidenced by peak voltage outputs ranging from 84.3 to 96.6 mV. Although this voltage remains low for broader applications, further research is needed to address temperature fluctuations, increase voltage output, and optimize SMFC design for real-world implementation.
Performance Evaluation of an Anaerobic-Aerobic Biofilter in the Wastewater Treatment System of a Mortuary Facility Sudiyanto, I Wayan; Magfirah HS, Sri; Aeni, Nur; Misykat Azis, Sri; Sattuang, Herlina
ARRUS Journal of Engineering and Technology Vol. 5 No. 2 (2025)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech4429

Abstract

Mortuary facilities generate wastewater with elevated concentrations of organic matter, suspended solids, oils and grease, ammonia, and microbial contaminants, necessitating effective treatment to mitigate environmental and public health risks. This study evaluates the performance of an anaerobic–aerobic biofilter wastewater treatment plant (WWTP) serving a mortuary facility in Makassar City. Wastewater samples were collected at the influent and effluent points of the system during July and August 2025 and analyzed for BOD₅, COD, TSS, oil and grease, NH₃–N, and total coliforms. The influent wastewater exhibited high pollutant loads (e.g., BOD₅: 58.1–58.4 mg/L; COD: 139.50–140.33 mg/L; TSS: 63.2–64.9 mg/L; NH₃–N: 13.42–13.94 mg/L; coliforms: 9532–9541 CFU/100 mL). Treatment by the biofilter consistently reduced these contaminants, producing effluent concentrations within applicable national standards. Removal efficiencies in July ranged from 45.56–67.81%, while efficiencies in August ranged from 52.11–70.03% for physicochemical parameters. Microbial removal was also effective, achieving 75.55% and 77.58% reduction in July and August, respectively. These findings demonstrate that the anaerobic–aerobic biofilter performs reliably under routine operating conditions, effectively reducing organic pollutants, suspended solids, oils and grease, ammonia, and total coliforms in mortuary wastewater. The system provides compliant effluent quality without additional treatment stages, indicating its suitability for managing medium-strength, high-organic-load wastewater generated by mortuary activities.
Green Feed Innovation with Goat Milk Yogurt Casein to Mitigate Dioxin Accumulation in Nile Tilapia Nur Aeni; Sri Magfirah HS
ARRUS Journal of Engineering and Technology Vol. 5 No. 2 (2025)
Publisher : PT ARRUS Intelektual Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/jetech4470

Abstract

Dioxins are toxic and persistent organochlorine pollutants that bioaccumulate in fish tissues, posing health risks to consumers. This study evaluated the potential of casein isolated from goat milk yogurt as a bioprotective agent to reduce dioxin bioaccumulation in Nile tilapia (Oreochromis sp.). A Completely Randomized Design (CRD) was employed with three groups: a negative control (no exposure), a positive control (dioxin exposure), and a therapy group (dioxin exposure plus dietary casein supplementation). Fish were maintained for 30 days, consisting of 15 days of dioxin exposure followed by 15 days of casein therapy. Survival rate was highest in the negative control (100%), intermediate in the therapy group (67%), and lowest in the positive control (17%). Gas Chromatography–Mass Spectrometry (GC–MS) analysis showed that casein supplementation reduced dioxin concentration in muscle tissue threefold compared with the positive control (0.02% vs. 0.06%; p < 0.001). Histopathological analysis further indicated that casein attenuated hepatic damage, with a lower damage score in the therapy group (10) compared to the positive control (16). These findings suggest that casein from goat milk yogurt has potential as a functional feed ingredient to suppress dioxin accumulation and mitigate toxic effects in fish, although full physiological recovery was not achieved.
Co-Authors Abdullah, Nurjannah Oktorina Aeni , Nur Ansyarif, Azmalaeni Rifkah Hammado, Nururrahmah Humaerah, ST Aisyah humaerah, ST. aisyah Humairah, St Aisyah I Wayan Sudiyanto Kamal, Nahlah Mustafa Misykat Azis, Sri Nahlah Mustafa Kamal NUR AENI Nur Aeni Nururrahmah Rifkah Ansyarif, Azmalaeni Riska Wulandari, Riska Sattuang, Herlina Sri Misykat Aziz St. Aisyah Humaerah St. Aisyah Humaerah Sudiyanto, I wayan SURYA DHARMA Surya Dharma Zainuddin, Mudasir