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Characteristics and removal of microplastics in rural domestic wastewater treatment facilities of China

The Science of The Total Environment 2020 151 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Wei Su, Wei Su, Xiangliang Pan Jinte Zou, Xiangliang Pan Wei Su, Wei Su, Wei Su, Wei Su, Wei Su, Wei Su, Wei Su, Wei Su, Luo Hong-tu, Xiangliang Pan Luo Hong-tu, Diederik P.L. Rousseau, Wei Su, Xiangliang Pan Xiangliang Pan Jinte Zou, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Jianmeng Chen, Xiangliang Pan Xiangliang Pan Jianmeng Chen, Diederik P.L. Rousseau, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Diederik P.L. Rousseau, Diederik P.L. Rousseau, Diederik P.L. Rousseau, Xiangliang Pan Diederik P.L. Rousseau, Diederik P.L. Rousseau, Xiangliang Pan Xiangliang Pan Jianmeng Chen, Xiangliang Pan Xiangliang Pan Jianmeng Chen, Xiangliang Pan Xiangliang Pan Wei Su, Xiangliang Pan Xiangliang Pan Xiangliang Pan Diederik P.L. Rousseau, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Wei Su, Jun Li, Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan Xiangliang Pan

Summary

Researchers studied microplastic abundance, characteristics, and removal efficiency at five rural domestic wastewater treatment facilities in the Hangzhou region of China. The study found that influent contained 430 to 2,154 microplastic items per cubic meter, predominantly polypropylene, and that treatment processes achieved varying levels of removal, highlighting rural wastewater as a source of microplastic pollution.

Polymers

PE PET PP PS

Study Type Environmental

The environment of the countryside is different from that of the city. Studying the abundance, characteristics, and removal of microplastics (MPs) in rural domestic wastewater treatment facilities (RD-WWTFs) is of great significance for understanding the impacts of human activities on the environment of the countryside. Therefore, we studied five such facilities in the Hangzhou region of China. The abundance of MPs in the influent was 430-2154 items/m. Micro-Raman spectroscopic analysis indicates that the main type of polymer in the influent is polypropylene (PP, 54.6%), followed by polystyrene (PS, 29.7%) and polyethylene terephthalate (PET, 9.7%). The color of MPs is mainly white and clear (62.9%), red (13.3%) and gray (12.0%). Our results show that fragments (71.3%) are the dominant shape of MPs, followed by fibers (21.5%). The characteristics of MPs, such as sizes, shapes, and types, along with the treatment process, affect the removal of MPs in RD-WWTFs. Large MPs are easily removed by anaerobic processes, while small MPs are better removed by anaerobic/anoxic/oxic processes. Fibrous MPs are more difficult to be removed than the fragmented ones. Constructed wetlands play an important role in the removal of MPs.

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