Abstract
Aim of this research was to treat the organics enriched Paper and Pulp Industry (PPI) effluents using multi-metal tolerant predominant indigenous bacterial species. In addition, assessing the potential of treated bacterial biomass as a single cell protein (SCP). The multi-metal tolerant Streptomyces tuirus OS1 was enumerated from the Paper and Pulp Industry (PPI) effluents was identified through standard molecular characterization. S. tuirus OS1 proficiently ameliorated organic contaminants in PPI effluent in the in study at 35 °C, 45 °C, and 25 °C. Fortunately, the S. tuirus OS1 considerably increased the dissolved oxygen level in treated PPI effluent in 30 days of bioremediation process. Interestingly, at 35 °C of bioremediation process the S. tuirus OS1 demonstrated increased dried biomass (7.1 g L−1) with the total crude protein (SCP) as 5.3 g L−1 (78.79%) in 30 days of bioremediation process. These findings suggest that S. tuirus OS1 is capable of reducing organic pollutants in PPI effluents and producing biomass with enriched protein content.
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•Novel report about the bioremediation efficiency of S. tuirus OS1 on PPI effluent.•Physicochemical properties of PPI effluent beyond the permissible limits.•S. tuirus OS1 possess fine multi-metal tolerant and degradation potential.•S. tuirus OS1 actively reduced the most of the physicochemical properties at 35 °C.•The dried biomass of S. tuirus OS1 contained 78.79% of total protein as SCP.