Enhanced retention of bacteria by TiO2 nanoparticles in saturated porous media
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- 作者：Guillermina J. Gentilea ; ggentile@itba.edu.ar" class="auth_mail" title="E-mail the corresponding author ; Marí ; a M. Fidalgo de Cortalezzib ; fidalgom@missouri.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bacteria and TiO2 nanoparticle transport in porous media ; Cotransport ; DLVO
- 刊名：Journal of Contaminant Hydrology
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：191
- 期：Complete
- 页码：66-75
- 全文大小：776 K
文摘
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Bacterial transport in groundwater was affected by TiO2.
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Retention of bacteria and TiO2 nanoparticles was enhanced when both are present.
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Heteroaggregation and electrostatic interactions controlled the deposition and retention.
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TiO2 attachment to the sand was explained by electrostatic forces. TiO2 acted as bond between bacteria and sand.
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DLVO and classical filtration theories were used to model the interactions between particles and between particles and sand.