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Polyamide 6 microplastics as carriers led to changes in the fate of bisphenol A and dibutyl phthalate in drinking water distribution systems: The role of adsorption and interfacial partitioning

Journal of Hazardous Materials 2024 13 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Xianxian Chu, Ruopan An, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Weigao Zhao, Weigao Zhao, Ruopan An, Weigao Zhao, Xianxian Chu, Xianxian Chu, Xianxian Chu, Xianxian Chu, Weigao Zhao, Xianxian Chu, Weigao Zhao, Weigao Zhao, Xianxian Chu, Yimei Tian Weigao Zhao, Jing Liu, Xianxian Chu, Yimei Tian Jing Liu, Yimei Tian Yimei Tian, Ruopan An, Weigao Zhao, Weigao Zhao, Yimei Tian Yimei Tian Xianxian Chu, Ruopan An, Jing Liu, Jing Liu, Xianxian Chu, Weigao Zhao, Weigao Zhao, Weigao Zhao, Weigao Zhao, Weigao Zhao, Weigao Zhao, Weigao Zhao, Yimei Tian, Yimei Tian, Xianxian Chu, Jing Liu, Yimei Tian Yimei Tian Yimei Tian Yimei Tian Yimei Tian Weigao Zhao, Yimei Tian Menghan Jiang, Menghan Jiang, Jing Liu, Weigao Zhao, Xianxian Chu, Xianxian Chu, Xianxian Chu, Yimei Tian, Yimei Tian, Yimei Tian, Yimei Tian Yimei Tian Weigao Zhao, Yimei Tian, Xiuli Wu, Yimei Tian Jing Liu, Yimei Tian Weigao Zhao, Weigao Zhao, Yimei Tian Yimei Tian Yimei Tian Yimei Tian, Jing Liu, Yimei Tian, Weigao Zhao, Xianxian Chu, Xianxian Chu, Yimei Tian

Summary

Researchers investigated how polyamide 6 microplastics influence the behavior of bisphenol A and dibutyl phthalate, two common plastic additives, in drinking water distribution systems. They found that the microplastics acted as carriers that changed how these chemical contaminants adsorbed onto pipe surfaces and distributed through the water system. The study suggests that the presence of microplastics in drinking water infrastructure may alter the fate and concentration of co-occurring chemical pollutants.

Polymers

Study Type Environmental

Microplastics (MPs) co-exist with plastic additives and other emerging pollutants in the drinking water distribution systems (DWDSs). Due to their strong adsorption capacity, MPs may influence the occurrence of additives in DWDSs. The article investigated the occurrence of typical additives bisphenol A (BPA) and dibutyl phthalate (DBP) in DWDSs under the influence of polyamide 6 (PA6) MPs and further discussed the partitioning of BPA/DBP on PA6s, filling a research gap regarding the impact of adsorption between contaminants on their occurrence within DWDSs. In this study, adsorption experiments of BPA/DBP with PA6s and pipe scales were conducted and their interaction mechanisms were investigated. Competitive adsorption experiments of BPA/DBP were also carried out with site energy distribution theory (SEDT) calculations. The results demonstrated that PA6s might contribute to the accumulation of BPA/DBP on pipe scales. The adsorption efficiencies of BPA/DBP with both PA6s and pipe scales were 26.47 and 2.61 times higher than those with only pipe scales. It was noteworthy that BPA had a synergistic effect on the adsorption of DBP on PA6s, resulting in a 26.47 % increase in DBP adsorption. The article provides valuable insights for the compounding effect of different types of additives in water quality monitoring and evaluation.

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