Abstract
In this study, a bacterial consortium (RKS-AMP) was developed, which showed 99.28% decolorization of RCPs with significant reduction in COD (88.77%), BOD (93.99%), TOC (72.53%), phenol (85.90%) within 15 h at 30 ± 2 °C, pH 7, inoculum size (10%), salt concentration (1%), static condition in presence of glucose and yeast extract as carbon and nitrogen source, respectively. It also removed 72.35% of (Cr), 79.09% of (Cd), 65.88% (As) and Pb (83.87%) at same conditions. During RCPs treatment, lignin peroxidase (LiP), manganese peroxidase (MnP) and laccase enzyme activities were also recorded indicating that these enzymes are involved in RCPs degradation. The RCPs present in TIWW and their metabolites produced during the treatment process were identified by FT-IR and GC–MS analysis. In addition, the toxicity studies showed that metabolites of RCPs allowed 100–90% seed germination with significant improvement in root length, shoot length and biomass production in Vigna radiata and Vigna mungo indicating that the developed bacterial consortium (RKS-AMP) was effective in degradation and detoxification of RCPs. Thus, this newly developed bacterial consortium (RKS-AMP) can be used effectively in degradation and detoxification of textile industry wastewater pollutants.
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