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Microplastics in wastewater and sludge from centralized industrial wastewater treatment plants in Ho Chi Minh City, Vietnam

Case Studies in Chemical and Environmental Engineering 2025 Score: 38 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Emilie Strady Emilie Strady Emilie Strady Thuy-Chung Kieu-Le, Thuy-Chung Kieu-Le, Thuy-Chung Kieu-Le, Thuy-Chung Kieu-Le, Emilie Strady Tam Le, Tan-Phong Ngo, Emilie Strady Tan-Phong Ngo, Emilie Strady Thuy-Chung Kieu-Le, Emilie Strady Tan-Phong Ngo, Tan-Phong Ngo, Emilie Strady Emilie Strady Ming‐Chia Lai, Ming‐Chia Lai, Emilie Strady Emilie Strady Emilie Strady Ming‐Chia Lai, Tan-Phong Ngo, Emilie Strady Phuoc‐Dan Nguyen, Emilie Strady Thuy-Chung Kieu-Le, Tan-Phong Ngo, Ming‐Chia Lai, Emilie Strady Nam Pham, Phuoc‐Dan Nguyen, Thuy-Chung Kieu-Le, Nam Pham, Emilie Strady Emilie Strady Emilie Strady Emilie Strady Emilie Strady Tam Le, Tam Le, Phuoc‐Dan Nguyen, Emilie Strady Tam Le, Nguyen Cong Nguyen, Emilie Strady Nguyen Cong Nguyen, Phuoc‐Dan Nguyen, Emilie Strady Emilie Strady Emilie Strady Phuoc‐Dan Nguyen, Tan-Phong Ngo, Tam Le, Tan-Phong Ngo, Emilie Strady Thuy-Chung Kieu-Le, Tam Le, Emilie Strady Tam Le, Thuy-Chung Kieu-Le, Emilie Strady Emilie Strady Emilie Strady Emilie Strady Emilie Strady Emilie Strady Phuoc‐Dan Nguyen, Emilie Strady Emilie Strady Emilie Strady Emilie Strady

Summary

Researchers measured microplastic levels in two industrial wastewater treatment plants in Ho Chi Minh City, Vietnam, finding concentrations up to 40 particles per liter in incoming water and up to 92 particles per gram in sludge, with fibers being the most common type. Despite high removal rates, the plants still discharged 1.7 million microplastic particles per day, highlighting the limits of current treatment infrastructure.

Microplastic pollution is a growing concern, with wastewater treatment plants (WWTPs) acting as both barriers and sources. This study quantified microplastics in two centralized industrial WWTPs in Ho Chi Minh City, Vietnam. Microplastic concentrations ranged from 0.3 to 40.4 items L −1 in wastewater and 29.6–92.0 items g −1 dry weight in sludge, predominantly fibres. Despite high removal efficiencies, 1.7 × 10 6 microplastics were discharged daily. Potential risks from sludge were also discussed. Robust multivariate regression analysis of 43 WWTPs worldwide underscored the influent concentrations as the strongest predictor influencing effluent concentrations and offering insights into potential evidence-based strategies aligned with Vietnam's 2030 plastic reduction goals. • Microplastic concentration was from 0.3 to 40.4 items L −1 in wastewater. • Sludge cake contained 29.6 to 92.0 microplastics g −1 d.w. • There was potential for microplastic contamination of various environments from WWTPs. • Influent concentration was the most influencing factor in effluent concentration.

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