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Septi Ika Nurfadila
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Penurunan BOD5 dan COD pada Air Permukaan Pasar Umum Negara dengan Metode Filtrasi Sederhana Septi Ika Nurfadila; Okik Hendriyanto Cahyonugroho
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 6 (2023): Desember 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i6.2832

Abstract

The surface water of the Mertasari River (upstream) in Jembrana Regency, Bali is polluted with waste water due to the activities of the Negara Public Market (PUN). So that the quality of surface water decreases which is characterized by increasing levels of pollutant parameters. This study aims to determine the effectiveness of simple filtration tests with variations in the arrangement of filter media to reduce BOD5 and COD that exceed quality standards. The research method uses purposive sampling to determine the sampling location. From the results of water quality, the values of 8 mg/L and 29 mg/L respectively were obtained, which did not meet the quality standards based on Government Regulation of the Republic of Indonesia No. 22 of 2021. The arrangement used for filter media consists of palm fiber, sand, gravel, activated carbon, and zeolite. The filtration test treatment was carried out with three sampling times for each parameter with the amount of removal obtained BOD5 by 93.75% and COD by 96.14%. From these results, the final value of the BOD5 parameter is 0.9 mg/L and COD is 1.12 mg/L. So from the test results, simple filtration with the specified media arrangement is considered effective in reducing BOD5 and COD pollutant levels in surface water bodies around the State Public Market.
Pengaruh Penambahan Media Karbon Aktif dan Zeolit Terhadap Peningkatan Kinerja Tray Aerator Pada Air Sumur Septi Ika Nurfadila; Euis Nurul Hidayah
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

In the well water of Sengon Village, the levels of Fe (iron) and Mn (manganese) exceed the established quality standards of 0.743 mg/L and 1.60 mg/L respectively. One of the treatment solutions to reduce these contaminant levels is the aeration method of the aeration tray with the addition of media. The aeration method works by bringing water into contact with oxygen. The aim of this study is to determine the optimum performance of tray aerators by comparing the addition of activated carbon, zeolite or mixed media. Each media has an influence on the measurement results of pollutant levels in units of percent removal. The parameter with the highest weight is the one that most influences the effectiveness in removing Fe and Mn. The values of the parameter variations were then analysed and Anova Two Way statistical test was performed. The results showed that the most optimal reduction of Fe levels was achieved by aeration with activated carbon media with an aeration time of 150 minutes with a percentage removal of 96.67% and a level of 0.0234 mg/L. To reduce Mn levels, the most optimal aeration with addition of zeolite media with an aeration time of 150 minutes with a percent removal of 99.08% and levels <0.0145 mg/L. And to increase DO levels, the most optimal is aeration with the addition of activated carbon media with an aeration time of 150 minutes and a final DO value of 6 mg/L.
Co-Authors Euis Nurul Hidayah Okik Hendriyanto Cahyonugroho