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Adsorption of Pb(II) by UV-aged microplastics and cotransport in homogeneous and heterogeneous porous media.
Chang, Bokun; Huang, Zixuan; Yang, Xiaodong; Yang, Tianhuan; Fang, Xianhui; Zhong, Xianbao; Ding, Wei; Cao, Gang; Yang, Yajun; Hu, Feinan; Xu, Chenyang; Qiu, Ling; Lv, Jialong; Du, Wei.
Afiliación
  • Chang B; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Huang Z; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Yang X; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Yang T; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Fang X; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Zhong X; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Ding W; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Cao G; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Soil Physics and Land Management Group, Wageningen University & Research, 6708 PB Wageningen, the Netherlands.
  • Yang Y; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Hu F; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China.
  • Xu C; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
  • Qiu L; College of Mechanical and Electronic Engineering & Northwest Research Center of Rural Renewable Energy, Exploitation and Utilization of Ministry of Agriculture, Northwest A&F University, Yangling 712100, China.
  • Lv J; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China. Electronic address: ljlll@nwsuaf.edu.cn.
  • Du W; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, Ministry of Agriculture, Yangling 712100, China. Electronic address: weidu@nwafu.edu.cn.
J Hazard Mater ; 465: 133413, 2024 Mar 05.
Article en En | MEDLINE | ID: mdl-38228006
ABSTRACT
To investigate the adsorption effects of aged microplastics (MPs) on Pb(II) and their co-transport properties in homogeneous (quartz sand) and heterogeneous (quartz sand with apple branches biochar) porous media, we explored the co-transport of UV-irradiated aged MPs and coexisting Pb(II) along with their interaction mechanisms. The UV aging process increased the binding sites and electronegativity of the aged MPs' surface, enhancing its adsorption capacity for Pb(II). Aged MPs significantly improved Pb(II) transport through homogeneous media, while Pb(II) hindered the transport of aged MPs by reducing electrostatic repulsion between these particles and the quartz sand. When biochar, with its loose and porous structure, was used as a porous medium, it effectively inhibited the transport capacity of both contaminants. In addition, since the aged MPs cannot penetrate the column, a portion of Pb(II) adsorbed by the aged MPs will be co-deposited with the aged MPs, hindering Pb(II) transport to a greater extent. The transport experiments were simulated and interpreted using two-point kinetic modeling and the DLVO theory. The study results elucidate disparities in the capacity of MPs and aged MPs to transport Pb(II), underscoring the potential of biochar application as an effective strategy to impede the dispersion of composite environmental pollutants.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos