Effects of biodegradable and non-biodegradable nanoplastics on the short-term combined toxicity of divalent copper and ciprofloxacin to the nitrification activity of activated sludge based on toxicity modeling and molecular docking

Short-term influence of polytetrafluoroethylene micro/nano-plastics on the inhibition of copper and/or ciprofloxacin on the nitrifying sludge activities based on concentration addition and independent action models.

AI summary · Read the abstract

This study examined how polytetrafluoroethylene (PTFE) micro/nanoplastics modify the toxicity of copper and ciprofloxacin to nitrifying bacteria in wastewater sludge, finding complex interactions where PTFE particles altered the inhibitory effects of these pollutants on key nitrogen-cycling microbes.

Biodegradability-driven nanoplastic modulation of copper fate and toxicity in wetland plants

Effects of polyvinylchloride microplastics on the toxicity of nanoparticles and antibiotics to aerobic granular sludge: Nitrogen removal, microbial community and resistance genes

AI summary · Read the abstract

Researchers examined how PVC microplastics affect wastewater treatment systems that also contain copper oxide nanoparticles and the antibiotic ciprofloxacin. They found that low concentrations of microplastics actually reduced some toxic effects of the other pollutants, but higher concentrations worsened nitrogen removal efficiency and increased antibiotic resistance genes. The study highlights the complex ways microplastics can alter the behavior of other contaminants in water treatment.

Effect of polytetrafluoroethylene nanoplastics on combined inhibition of ciprofloxacin and bivalent copper on nitrogen removal, sludge activity and microbial community in sequencing batch reactor

AI summary · Read the abstract

Researchers examined how polytetrafluoroethylene (PTFE) nanoplastics modify the combined toxicity of ciprofloxacin and bivalent copper on nitrogen removal in a sequencing batch reactor, finding that PTFE nanoplastics adsorbed both contaminants and enhanced their joint inhibition of nitrification and denitrification, reducing ammonia nitrogen elimination and altering the sludge microbial community.

Interaction of Pesticides with Nano and Microplastics in Aquatic Systems: Co-toxicity and Remediation Strategies a Review

AI summary · Read the abstract

Researchers reviewed how microplastics and nanoplastics in aquatic environments adsorb pesticides and act as vectors for combined chemical toxicity, examining interaction mechanisms, co-toxicity effects on aquatic organisms and human health, and evaluating remediation and regulatory strategies.