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All Journal Formosa Journal of Multidisciplinary Research (FJMR) Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research
Renilaili
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Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Social Sciences Other

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Pendekatan Model Empiris untuk Prediksi Laju Korosi Material pada Kursi Roda Arm Rest Ahmat Fahrezy, Egi; Renilaili
Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research Vol. 1 No. 4 (2024): AGUSTUS-OKTOBER 2024
Publisher : UNIVERSITAS SERAMBI MEKKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/mister.v1i4.2229

Abstract

Corrosion is one of the main challenges in the maintenance and durability of materials in various applications, including on wheelchair arm rest. Predicting the rate of corrosion is crucial for enhancing the lifespan and reliability of these devices. This research develops an empirical model approach to predict the corrosion rate of arm rest materials. The model is built based on experimental data obtained from corrosion testing under various environmental conditions. The data is analyzed using linear and non-linear regression methods to find the relationship between environmental variables (such as humidity, temperature, and acidity) and the corrosion rate.
Potential Pollution of Liquid Waste from the Agro-Industry to Rivers in the Area Around Tanjung Api-Api AR, Hasmawaty; Yulistia , Eriyana; Renilaili
Formosa Journal of Multidisciplinary Research Vol. 3 No. 2 (2024): February 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjmr.v3i2.8001

Abstract

Due to its high regional significance, Tanjung Api-api, currently the mainstay of South Sumatra Province, serves as a focal point for agro-industrial development programs. This research aims to identify the potential for liquid waste pollution in rivers from agro-industries around Tanjung Api-api. This research was carried out through four stages: (a) collecting physical data on land, forests, and rivers in the ecosystem conditions around the industrial area of the Tanjung Api-api area. (b) analyzing data on the physical and chemical parameters of the Telang River, (c) analyzing several physical and chemical parameters of Telang River water, (d) obtaining data on the physical and chemical parameters of liquid waste in the influent and effluent of several WWTP agro-industries in the Gasing area that have been operating. Water quality measurements were conducted in the Telang and Gasing rivers. The parameters measured and observed were TSS, pH, BOD, COD, and fatty oil parameters, respectively, once in the afternoon and evening during high and low tide, at three points: downstream, middle, and upstream. The results showed that the physical, organic, and inorganic chemical parameters in the Telang River were still below the BMLC threshold. The quantity and quality of industrial wastewater in Gasing are still below the BMLC standard for each industry but are almost close to the established quality standards. It is recommended to utilize the sludge into something more valuable, considering that the TSS produced from sludge dewatering is relatively high.
Co-Authors Ahmat Fahrezy, Egi AR, Hasmawaty Yulistia , Eriyana