Impact of perfluorooctanoic acid on microalgal-bacterial aerobic granular sludge
This project investigated the effects of perfluorooctanoic acid (PFOA) exposure on the performance, extracellular polymeric substances (EPS), and microbial functional responses of a lab-scale microalgal-bacterial aerobic granular sludge (MB-AGS) system treating wastewater. Reactors were exposed to 100, 500, and 1000 ppb PFOA, and system performance was evaluated in terms of carbon, nitrogen, and phosphorus removal. Metagenomic and metatranscriptomic sequencing were conducted to characterize microbial community structure and gene expression responses under PFOA stress. The dataset supports analysis of microbial adaptation, nutrient removal stability, PFOA partitioning, and resistance-related functional profiles in MB-AGS systems exposed to PFOA.