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Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids.

Publication ,  Journal Article
Barton, LE; Auffan, M; Durenkamp, M; McGrath, S; Bottero, J-Y; Wiesner, MR
Published in: The Science of the total environment
April 2015

The use of nano-enabled materials in industry and consumer products is increasing rapidly and with it, the more imperative it becomes to understand the consequences of such materials entering the environment during production, use or disposal. The novel properties of engineered nanomaterials (ENMs) that make them desirable for commercial applications also present the possibility of impacting aquatic and terrestrial environments in ways that may differ from materials in bulk format. Modeling techniques are needed to proactively predict the environmental fate and transport of nanomaterials. A model for nanoparticle (NP) separation and transformation in water treatment was parameterized for three metal and metal-oxide NPs. Functional assays to determine NP specific distribution and transformation were used to parameterize the model and obtain environmentally relevant concentrations of NPs and transformation byproducts leaving WWTPs in effluent and biosolids. All three NPs were predicted to associate >90% with the solid phase indicating significant accumulation in the biosolids. High rates of transformation for ZnO and Ag NPs resulted in ~97% transformation of the NPs that enter the plant despite differences in transformation rate in aerobic versus anaerobic environments. Due to high insolubility and negligible redox transformation, the only process predicted to impact TiO2 NP fate and transport in WWTPs was distribution between the solid and liquid phases. Subsequent investigation of ZnO NP species fate and transport when land applied in biosolids indicated that steady state concentrations of ZnO phases would likely be achieved after approximately 150days under loading conditions of biosolids typical in current practice.

Duke Scholars

Published In

The Science of the total environment

DOI

EISSN

1879-1026

ISSN

0048-9697

Publication Date

April 2015

Volume

511

Start / End Page

535 / 543

Related Subject Headings

  • Zinc Oxide
  • Wastewater
  • Waste Disposal, Fluid
  • Titanium
  • Silver
  • Monte Carlo Method
  • Models, Chemical
  • Metal Nanoparticles
  • Environmental Sciences
  • Agriculture
 

Citation

APA
Chicago
ICMJE
MLA
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Barton, L. E., Auffan, M., Durenkamp, M., McGrath, S., Bottero, J.-Y., & Wiesner, M. R. (2015). Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids. The Science of the Total Environment, 511, 535–543. https://doi.org/10.1016/j.scitotenv.2014.12.056
Barton, Lauren E., Melanie Auffan, Mark Durenkamp, Steve McGrath, Jean-Yves Bottero, and Mark R. Wiesner. “Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids.The Science of the Total Environment 511 (April 2015): 535–43. https://doi.org/10.1016/j.scitotenv.2014.12.056.
Barton LE, Auffan M, Durenkamp M, McGrath S, Bottero J-Y, Wiesner MR. Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids. The Science of the total environment. 2015 Apr;511:535–43.
Barton, Lauren E., et al. “Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids.The Science of the Total Environment, vol. 511, Apr. 2015, pp. 535–43. Epmc, doi:10.1016/j.scitotenv.2014.12.056.
Barton LE, Auffan M, Durenkamp M, McGrath S, Bottero J-Y, Wiesner MR. Monte Carlo simulations of the transformation and removal of Ag, TiO2, and ZnO nanoparticles in wastewater treatment and land application of biosolids. The Science of the total environment. 2015 Apr;511:535–543.
Journal cover image

Published In

The Science of the total environment

DOI

EISSN

1879-1026

ISSN

0048-9697

Publication Date

April 2015

Volume

511

Start / End Page

535 / 543

Related Subject Headings

  • Zinc Oxide
  • Wastewater
  • Waste Disposal, Fluid
  • Titanium
  • Silver
  • Monte Carlo Method
  • Models, Chemical
  • Metal Nanoparticles
  • Environmental Sciences
  • Agriculture