A Comprehensive Modeling of Microplastic Emission from Wastewater Treatment Plants to the Sea via Rivers in China

被引：0
|
作者：
Shi, Xuan [1 ]
Ma, Youfei [1 ]
Ma, Yunfei [1 ]
Lin, Wanying [1 ]
Zhu, Lixin [2 ,3 ,4 ]
Li, Daoji [2 ,3 ,4 ]
Tong, Yindong [5 ]
Lin, Yan [1 ]
机构：
[1] Nankai Univ, Coll Environm Sci & Engn, Tianjin Key Lab Environm Technol Complex Transmedi, Tianjin 300350, Peoples R China
[2] East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200241, Peoples R China
[3] East China Normal Univ, Plast Marine Debris Res Ctr, Shanghai 200241, Peoples R China
[4] IOC UNESCO, Reg Training & Res Ctr Plast Marine Debris & Micro, Shanghai 200241, Peoples R China
[5] Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300350, Peoples R China
来源：
ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2025年 / 59卷 / 07期
基金：
中国国家自然科学基金;
关键词：
fragments and fibers; sewage; riverine transport; exorheic rivers; removal efficiency; ACTIVATED-SLUDGE PROCESS; FATE; REMOVAL; POLLUTION; IDENTIFICATION; RETENTION; PARTICLES; TRANSPORT; DEBRIS; EXPORT;
D O I：
10.1021/acs.est.4c07345
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Wastewater treatment plants (WWTPs) are significant sources of microplastic (MP) emissions. In order to quantify the potential MP emission from WWTPs, a database of more than 10,000 WWTPs in China with an estimated MP emission rate was built. The MP riverine retention after emission was also estimated based on Stokes' law for both fragments and fibers. The results show that the mass of MPs discharged from WWTPs is (4.48 +/- 7.48) x 107 kg, yet the amount of MPs released from untreated sewage is (4.55 +/- 3.00) x 107 kg, which is comparable to that of treated wastewater, indicating the capacity of wastewater treatment should be further strengthened. The flux of MPs into the sea after river interception is between 4.08 x 107 kg and 8.20 x 107 kg with 14-27% being directly discharged to the sea within 20 km from the shore.
引用
收藏
页码：3679 / 3690
页数：12
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