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All Journal Media Ilmiah Teknik Lingkungan
Adinda Permata Salsabila
UPN “Veteran” Jawa Timur
Environmental Science

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Effect of Eco-Enzyme Dosage Variations in an Intermittent MBBR System on the Efficiency of Domestic Wastewater Treatment: Pengaruh Variasi Penambahan Eco-Enzyme pada Sistem Intermittent MBBR terhadap Efisiensi Pengolahan Limbah Domestik Adinda Permata Salsabila; Praditya Sigit Ardisty Sitogasa
Media Ilmiah Teknik Lingkungan (MITL) Vol. 11 No. 2 (2026): Media Ilmiah Teknik Lingkungan (MITL)
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mitl.v11i2.12317

Abstract

This study aimed to analyze the effect of a Moving Bed Biofilm Reactor (MBBR) operated under oxic–anoxic conditions with the addition of an external carbon source in the form of eco-enzyme during the anoxic phase on the reduction of COD and BOD concentrations in domestic wastewater. The investigated variables included oxic–anoxic duration ratios (2:1, 4:1, and 6:1) within an 8-hour operational cycle and eco-enzyme dosages (0%, 0.5%, 1%, 1.5%, and 2%). The results showed that at an oxic–anoxic ratio of 6:1, the addition of 1.5% eco-enzyme achieved COD removal efficiency of up to 87%, while a 2% dosage resulted in BOD removal efficiency of 89%. These findings indicate that the appropriate eco-enzyme dosage enhances the biodegradation of organic compounds and supports biological organic removal in the intermittent MBBR system by creating optimal reactor environmental conditions.
Co-Authors Praditya Sigit Ardisty Sitogasa