Cometabolic bacterial and fungal remediation as a promising strategy for recycled paper and cardboard mill wastewater treatment
ISSN: 0369-9420
Article publication date: 17 October 2022
Issue publication date: 14 March 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.
Keywords
Acknowledgements
This research was supported by Shahid Sadoughi University of Medical Sciences, Yazd, Iran (Grant No. 6782) as part of a PhD dissertation (IR.SSU.SPH.REC.1398.096).
Funding: This research was financially supported by the Shahid Sadoughi University of Medical Sciences (Grant No. 6782).
Disclosure statement: No potential conflict of interest was reported by the authors.
Citation
Gholami, M., Mahvi, A.H., Teimouri, F., Ehrampoush, M.H., Jafari Nodoushan, A., Jambarsang, S. and Ghaneian, M.T. (2024), "Cometabolic bacterial and fungal remediation as a promising strategy for recycled paper and cardboard mill wastewater treatment", Pigment & Resin Technology, Vol. 53 No. 3, pp. 313-321. https://doi.org/10.1108/PRT-07-2022-0089
Publisher
:Emerald Publishing Limited
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