Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Sign in to save

Modifications of ultraviolet irradiation and chlorination on microplastics: Effect of sterilization pattern

The Science of The Total Environment 2021 38 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Ruijuan Liu, Xinni Wu, Xinni Wu, Jianwei Fu, Xinni Wu, Xinni Wu, Ruijuan Liu, Yuan Liu Yuan Liu Ruijuan Liu, Ruijuan Liu, Yuan Liu Huase Ou, Yuheng Chen, Ruijuan Liu, Huase Ou, Yuan Liu Ruijuan Liu, Yuheng Chen, Yuheng Chen, Yuan Liu Ruijuan Liu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Xinni Wu, Yuan Liu Yuheng Chen, Huase Ou, Jianwei Fu, Xinni Wu, Xinni Wu, Ruijuan Liu, Xinni Wu, Xinni Wu, Xinni Wu, Ruijuan Liu, Xinni Wu, Xinni Wu, Yuan Liu Jianwei Fu, Jianwei Fu, Jianwei Fu, Yuan Liu Yuan Liu Yuan Liu Ruijuan Liu, Ruijuan Liu, Yuheng Chen, Yuheng Chen, Yuheng Chen, Yuheng Chen, Xinni Wu, Xinni Wu, Huase Ou, Jianwei Fu, Huase Ou, Huase Ou, Huase Ou, Xinni Wu, Ruijuan Liu, Yuheng Chen, Yuheng Chen, Jianwei Fu, Yuan Liu Jianwei Fu, Yuheng Chen, Jianwei Fu, Ruijuan Liu, Jianwei Fu, Ruijuan Liu, Xinni Wu, Huase Ou, Huase Ou, Huase Ou, Yuheng Chen, Huase Ou, Huase Ou, Huase Ou, Xinni Wu, Jianwei Fu, Xinni Wu, Ruijuan Liu, Huase Ou, Huase Ou, Ruijuan Liu, Ruijuan Liu, Huase Ou, Jianwei Fu, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Huase Ou, Yuheng Chen, Huase Ou, Ruijuan Liu, Ruijuan Liu, Ruijuan Liu, Yuan Liu

Summary

Researchers found that both UV irradiation and chlorination used in drinking water treatment alter the surface properties, size distribution, and chemical composition of microplastics, with combined treatments producing greater modifications and potentially increasing the release of plastic additives and adsorbed contaminants.

Polymers

PE PET PS PVC

Study Type Environmental

Chlorination and ultraviolet disinfection in drinking water treatment plants (DWTPs) may be highly destructive for microplastics (MPs). Investigating the effect of sterilization patterns on MPs behavior modifications can provide useful information to evaluate their potential risk to drinking water safety. In this study, aged polyethylene (PE), polyethylene terephthalate (PET), polystyrene (PS) and polyvinyl chloride (PVC) were applied, and five well-designed sterilization patterns with low and high doses disinfection were performed. Especially, a combining sterilization pattern including ultraviolet disinfection, low-dose chlorination and high-dose chlorination was designed to simulate the actual disinfection processes in environmental engineering systems. Different sterilization patterns contributed various chlorinated and oxidized modifications on the MPs surface, resulting in distinct effects on their sinking and adsorption performance. After combining sterilization (180 mJ cm UV-C irradiation +9675 mg min L chlorination), the adsorption capacities of ciprofloxacin by PET and PVC were slightly improved, and the one by PS was inhibited. Yet, PET, PVC and PS tend to sink (>95%) after this combining sterilization, implying that these MPs would be retained in DWTPs or water supply pipes. For PE, even though it maintained floating on water, its adsorption of ciprofloxacin was inhibited by combining sterilization (K reduced from 0.142 L g to 0.069 L g). In general, multiple sterilization patterns can enhance the sinking and inhibit the adsorption performance of MPs, reducing their potential to become vectors of organic contaminants and risk to drinking water users.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email