Impact of surfactants on the biological nitrogen turnover in wastewater treatment plants (WWTP)
Surfactants, commonly used in household and industrial products, are increasingly found in wastewater and pose a challenge to nitrogen turnover in WWTPs. These amphiphilic molecules can affect microbial communities responsible for key processes like nitrification and denitrification, potentially disrupting nitrogen removal. Despite their widespread use, little is known about the specific surfactants present in wastewater and their influence on nitrogen-cycling microorganisms. Our research aims to identify these surfactants, monitor their seasonal patterns, and investigate their impact on microbial community composition and function. We use molecular techniques such as 16S rRNA sequencing, qPCR, and lab-scale experiments to unravel the mechanisms behind surfactant-induced inhibition or stimulation of microbial activity. This knowledge will enhance our understanding of surfactant-microbe interactions and contribute to improving wastewater treatment efficiency.