Bisphenol A removal from a plastic industry wastewater by endophytic bacteria and NI.

Understanding the significance of plant-endophytic bacteria for bisphenol A (BPA) removal is of importance for any application of organic pollutant phytoremediation. In this research, with endophytic showed higher BPA removal than uninoculated plants at 89.54 ± 0.88% and 79.08 ± 1.20%, respectively. Quantitative Real-Time PCR (qPCR) showed that increased from 3.93 × 10 to 8.80 × 10 16S rRNA gene copy number in root tissues from day 0 to day 5 which indicated that it could assist the plant in removing BPA during the treatment period. pH, chemical oxygen demand (COD), biochemical oxygen demand (BOD), total dissolved solids (TDS), conductivity, and salinity were reduced after 5 days of the experimental period. Particularly, BOD significantly decreased due to activities of the plants and microorganisms. Furthermore, an indigenous bacterial strain, NI, from the wastewater could remove BPA in high TDS and alkalinity condition of the wastewater. This work suggests that plants could be used as a tertiary process in a wastewater treatment system and should be combined with its endophytic bacteria. In addition, NI could also be applied for BPA removal from wastewaters with high TDS and salinity.