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Cometabolic Bacterial and Fungal Remediation As a Promising Strategy for Recycled Paper and Cardboard Mill Wastewater Treatment Publisher



Gholami M1 ; Mahvi AH2, 5 ; Teimouri F1, 6 ; Ehrampoush MH1 ; Jafari Nodoushan A3 ; Jambarsang S4 ; Ghaneian MT1
Authors
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Authors Affiliations
  1. 1. Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  2. 2. Center for Water Quality Research (CWQR), Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Medical Parasitology and Mycology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  4. 4. Center for Healthcare Data Modeling, Departments of Biostatistics and Epidemiology, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  5. 5. Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Environmental Science and Technology Research Center, Department of Environmental Health – Radiation Health, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran

Source: Pigment and Resin Technology Published:2024


Abstract

Purpose: This paper aims to study the application of high-tolerance and flexible indigenous bacteria and fungi, along with the co-metabolism in recycled paper and cardboard mill (RPCM) wastewater treatment (WWT). Design/methodology/approach: The molecular characterization of isolated indigenous bacteria and fungi was performed by 16S rRNA and 18S rRNA gene sequencing, respectively. Glucose was used as a cometabolic substrate to enhance the bioremediation process. Findings: The highest removal efficiency was achieved for both chemical oxygen demand (COD) and color [78% COD and 45% color removal by Pseudomonas aeruginosa RW-2 (MZ603673), as well as approximately 70% COD and 48% color removal by Geotrichum candidum RW-4 (ON024394)]. The corresponding percentages were higher in comparison with the efficiency obtained from the oxidation ditch unit in the full-scale RPCM WWT plant. Originality/value: Indigenous P. aeruginosa RW-2 and G. candidum RW-4 demonstrated effective capability in RPCM WWT despite the highly toxic and low biodegradable nature, especially with the assistance of glucose. © 2022, Emerald Publishing Limited.
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