Fig. 2

Total viable bacterial count (cfu/mL) in the collected sludge samples. One way Analysis of Variance test was performed for Mean ± SD & Multiple comparison between groups through Post Hoc test: Tukey’s test Letters A-D comparatively represent the descending order of results reflecting importance among means. p-value > 0.05 is insignificant; *p-value < 0.05 is significant; **p-value < 0.001 is highly significant