Systematic insights into 6PPD-quinone biotransformation by acclimated aerobic sludge: Kinetics, pathways, toxicity, and enzymatic mechanisms.
This study acclimated aerobic (AeS), nitrifying (NS), and denitrifying (DS) sludge systems to N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q) at 1-20 mg·L⁻¹ . Within an environmental to high concentration range (1 μg·L⁻¹ to 5 mg·L⁻¹), acclimated AeS removed 88.9%-95.2% of 6PPD‑Q within 14 days, sign...