Special Issue "Environmental Behavior of Nanomaterials"

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: 29 February 2020.

Special Issue Editors

Guest Editor
Prof. Jun Hou Website E-Mail
College of Environment, Hohai University, 1 Xikan Road, Nanjing 210098, China
Interests: water environment protection and bioremediation, especially with a focus on water quality improvement technology coupling biofilms and active substrata; ecological engineering for aquatic ecosystem restoration; nanomaterials for environmental remediation; manufactured nanomaterials’ environmental behaviors and biological effects in aquatic ecosystems, especially focusing on the interactions between manufactured nanoparticles and microbial aggregates
Guest Editor
Prof. Yanhui Ao Website E-Mail
College of Environment, Hohai University, 1 Xikan Road, Nanjing 210098, China
Interests: water resources protection; water remediation technology; water splitting; environmentally friendly materials; behavior of manufactured nanomaterials

Special Issue Information

Dear Colleagues,

In recent years, the rapid development of nanotechnology has greatly promoted the progress of human society. However, with the rapid development of nanotechnology, a large number of nanomaterials are emitted into water bodies and cause environmental problems. Due to their small diameter and strong dispersibility, nanomaterials easily migrate with water and are adsorbed by plants and animals in the ecosystem, causing biological toxicity and endangering the health of aquatic organisms and water ecological security. Therefore, nanomaterials have been regarded as a new type of pollutant. On the other hand, nanomaterials with strong binding ability interact with pollutants or other dissolved matter in water, thus affecting their biological toxicity. Therefore, the study of the mechanisms of the aggregation and sedimentation behavior of nanoparticles under the influence of various factors will provide a theoretical basis for the transport/diffusion and environmental trend of nanomaterials. The effect and mechanism of pollutants’ (or other dissolved matter) on the aggregation and sedimentation of nanomaterials in water will provide a theoretical basis for the joint removal of nanomaterials and refractory organics in water. This has important theoretical significance and application value for reducing the environmental pollution of nanomaterials.

This Special Issue seeks research papers on various aspects of the “Environmental Behavior of Nanomaterials”. Especially, we encourage the submission of interdisciplinary work and multi-country collaborative research. We welcome original research papers as well as systematic reviews.

Prof. Jun Hou
Prof. Yanhui Ao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Environmental Research and Public Health is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • nanomaterials/nanoparticles
  • environmental behavior
  • biological toxicity
  • aggregation
  • sedimentation
  • dissolution
  • ion release
  • organic pollutants/inorganic pollutants
  • cations/anions
  • natural light
  • dissolved matters
  • hydrodynamic force
  • microbial aggregate
  • streams/rivers/reservoirs/lakes

Published Papers (1 paper)

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Research

Open AccessArticle
Turbulent Aggregation and Deposition Mechanism of Respirable Dust Pollutants under Wet Dedusting using a Two-Fluid Model with the Population Balance Method
Int. J. Environ. Res. Public Health 2019, 16(18), 3359; https://doi.org/10.3390/ijerph16183359 - 11 Sep 2019
Abstract
In this paper, a mathematical model based on the two-fluid (Euler–Euler) frame model for wet dedusting process is proposed. The model considers in detail the aggregation of particles and droplets caused by turbulence and Brownian diffusion as well as the gravitational deposition process. [...] Read more.
In this paper, a mathematical model based on the two-fluid (Euler–Euler) frame model for wet dedusting process is proposed. The model considers in detail the aggregation of particles and droplets caused by turbulence and Brownian diffusion as well as the gravitational deposition process. The population balance model (PBM) is used to describe the spatiotemporal evolution of particle size distribution (PSD) for the dust particle and the water droplet. The wet dedusting process under different conditions is simulated and compared with the detailed experimental data. The results show that the experimental data and simulation results are within the allowable range of error (about 32.3–61.2% in dedusting efficiency for respirable dust by experimental data and about 47.3–57.9% in it by simulation results). This model can be used to predict the effect of PSD of the dust particle, spray flow, and ventilation rate on dedusting efficiency of wet dedusting. The parameter analysis shows that dedusting efficiency decreases as particle size decreases. In order to ensure high capture efficiency of respirable dust, the diameter of droplets should be controlled to between 15μm and 70μm. The ratio of droplet volume flow to dust volume flow increases from 2.0 to 12.0, while dedusting efficiency only increases from 39.2% to 54.7%, so it is clear that for spray quantity to dedusting efficiency, larger is not necessarily better. Besides this, the speeds of both spray droplets and ventilation also have great influence on dedusting efficiency, and the related formulas are given. Full article
(This article belongs to the Special Issue Environmental Behavior of Nanomaterials)
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