Muhammad Al Kholif, Indah Nurhayati, Sugito, Debby Aroem Sari, Joko Sutrisno, Pungut, Dwi Rasy Mujiyanti
This study investigated the ability of the multi-media-layering (MML) to reduce Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) levels in domestic wastewater. MML used in this study is comprised of two MMLs (MML-1 and MML-2) with a total volume for each MML of 0.056 m³. Every MML was filled with gravel media, zeolite, activated carbon, and silica sand. The differences between MML-1 and MML-2 were only found at the height of the media, especially the height of gravel and zeolite media. This study showed that MML-1 had the highest efficiency in reducing BOD₅ (95.47%) and COD (93.10%) compared with MML-2 (BOD₅ of 85.39% and COD of 89.65%). Overall, MML showed promising results in removing pollutants from domestic wastewater. The study also suggested that the height of the gravel media and pH greatly influenced the removal of BOD₅ and COD levels in domestic wastewater. © 2023, Faculty of Environment and Resource Studies,Mahidol University. All rights reserved.
Department of Environmental Engineering, Engineering Faculty, Universitas PGRI Adi Buana Surabaya, Jalan Dukuh Menanggal XII/4, East Java, Surabaya, 60234, Indonesia; Environmental Agency, Jl. APT Pranoto No. 10 Tanjung Redep, Berau Regency, East Kalimantan, 77315, Indonesia; Chemistry Study Program, Mathematic and Natural Science Faculty, Lambung Mangkurat University, Jalan Ahmad Yani Km 36, South Kalimantan, Banjarbaru, 70123, Indonesia
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