Virus attachment onto quartz sand: Role of grain size and temperature

Chrysikopoulos, Constantinos V.; Aravantinou, Andriana F.

doi:10.1016/j.jece.2014.01.025

Cited by 40 publications

(37 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, deeper minima, lesser energy barrier together with increased particle transfer to the wall region results in an increase in the particle deposition with increasing temperature. This finding is consistent with the experimental observations available in the literature [ Chrysikopoulos and Aravantinou , ; Syngouna and Chrysikopoulos , ; Yan et al ., ]. Chrysikopoulos and Aravantinou [] found from batch experiments under static conditions that temperature significantly affects virus attachment, and the attachment increased with increasing temperature.…”

Section: Comparison With Experimental Datasupporting

confidence: 93%

“…This finding is consistent with the experimental observations available in the literature [ Chrysikopoulos and Aravantinou , ; Syngouna and Chrysikopoulos , ; Yan et al ., ]. Chrysikopoulos and Aravantinou [] found from batch experiments under static conditions that temperature significantly affects virus attachment, and the attachment increased with increasing temperature. They found that the Freundlich isotherm fitted the data and the Freundlich constant of MS2 and ΦX174 onto quartz sand was greater at 20°C than at 4°C.…”

Section: Comparison With Experimental Datasupporting

confidence: 93%

See 1 more Smart Citation

Correlation equations for average deposition rate coefficients of nanoparticles in a cylindrical pore

Seetha

Hassanizadeh

Kumar

et al. 2015

Water Resources Research

View full text Add to dashboard Cite

Nanoparticle deposition behavior observed at the Darcy scale represents an average of the processes occurring at the pore scale. Hence, the effect of various pore-scale parameters on nanoparticle deposition can be understood by studying nanoparticle transport at pore scale and upscaling the results to the Darcy scale. In this work, correlation equations for the deposition rate coefficients of nanoparticles in a cylindrical pore are developed as a function of nine pore-scale parameters: the pore radius, nanoparticle radius, mean flow velocity, solution ionic strength, viscosity, temperature, solution dielectric constant, and nanoparticle and collector surface potentials. Based on dominant processes, the pore space is divided into three different regions, namely, bulk, diffusion, and potential regions. Advection-diffusion equations for nanoparticle transport are prescribed for the bulk and diffusion regions, while the interaction between the diffusion and potential regions is included as a boundary condition. This interaction is modeled as a firstorder reversible kinetic adsorption. The expressions for the mass transfer rate coefficients between the diffusion and the potential regions are derived in terms of the interaction energy profile. Among other effects, we account for nanoparticle-collector interaction forces on nanoparticle deposition. The resulting equations are solved numerically for a range of values of pore-scale parameters. The nanoparticle concentration profile obtained for the cylindrical pore is averaged over a moving averaging volume within the pore in order to get the 1-D concentration field. The latter is fitted to the 1-D advection-dispersion equation with an equilibrium or kinetic adsorption model to determine the values of the average deposition rate coefficients. In this study, pore-scale simulations are performed for three values of P eclet number, Pe 5 0.05, 5, and 50. We find that under unfavorable conditions, the nanoparticle deposition at pore scale is best described by an equilibrium model at low P eclet numbers (Pe 5 0.05) and by a kinetic model at high P eclet numbers (Pe 5 50). But, at an intermediate Pe (e.g., near Pe 5 5), both equilibrium and kinetic models fit the 1-D concentration field. Correlation equations for the pore-averaged nanoparticle deposition rate coefficients under unfavorable conditions are derived by performing a multiple-linear regression analysis between the estimated deposition rate coefficients for a single pore and various pore-scale parameters. The correlation equations, which follow a power law relation with nine pore-scale parameters, are found to be consistent with the columnscale and pore-scale experimental results, and qualitatively agree with the colloid filtration theory. These equations can be incorporated into pore network models to study the effect of pore-scale parameters on nanoparticle deposition at larger length scales such as Darcy scale.

show abstract

Section: Comparison With Experimental Datasupporting

confidence: 93%

Section: Comparison With Experimental Datasupporting

confidence: 93%

Correlation equations for average deposition rate coefficients of nanoparticles in a cylindrical pore

Seetha

Hassanizadeh

Kumar

et al. 2015

Water Resources Research

View full text Add to dashboard Cite

show abstract

“…The results of this study confirm findings from previous studies by Blanc and Nasser (1996) [20], Davis et al (2006) [21], Davidson et al (2013) [22], and Chrysikopoulos and Aravantinou (2014) [23] showing that the transport of infective rotavirus particles is much more likely to be affected by sand particles, with some effect from interactions with clay particles. The high sand content of the Alvin soil clearly caused a greater reduction in the recovery of infective rotavirus particles.…”

Section: Discussionsupporting

confidence: 91%

“…Sewage treatment findings from Chrysikopoulos and Aravantinou (2014) [23] showing that the size of sand particles is an important factor.…”

Section: Introductionmentioning

confidence: 99%

Overland Transport of Rotavirus and the Effect of Soil Type and Vegetation

Davidson

Kuhlenschmidt

Bhattarai

et al. 2016

Water

View full text Add to dashboard Cite

Soil and vegetation are two critical factors for controlling the overland transport kinetics of pathogens in a natural environment. With livestock operations moving more towards concentrated animal operations, the need to dispose of a very large amount of manure in a localized area is becoming increasingly important. Animal manure contains a substantial amount of microbial pathogens, including rotavirus, which may pose a threat of contamination of water resources. This study examined the kinetics of rotavirus in overland transport, with an overall objective of optimizing the design of best management practices, especially vegetative filter strips. The overland transport of rotavirus was studied using three soil types (Catlin silt-loam, Darwin silty-clay, Alvin fine sandy-loam), spanning the entire spectrum of typical Illinois soil textures. A 20-min rainfall event was produced using a small-scale (1.07 mˆ0.66 m) laboratory rainfall simulator over a soil box measuring 0.610 mˆ0.305 m. Each soil type was tested for rotavirus transport kinetics with bare surface conditions, as well as with Smooth Brome and Fescue vegetative covers. Surface runoff, near-surface runoff, soil cores, and vegetation were each analyzed for infective rotavirus particles using cell-culture infectivity assays. Results show that vegetation reduces the recovery of infective rotavirus particles in surface runoff by an average of 73%, in addition to delaying the time to peak recovery. The vegetation, in general, appeared to decrease the recovery of infective rotavirus particles in surface runoff by impeding surface flow and increasing the potential for infiltration into the soil profile.

show abstract

“…Particle‐particle interactions are omitted. The interactions between a particle and a surface are described by Derjaguin‐Landau‐Verwey‐Overbeek (DLVO) interaction energy profiles (Chrysikopoulos & Aravantinou, ; Elimelech et al, ; Ryan & Elimelech, ; Torkzaban & Bradford, ). The attachment/detachment of a colloid on a surface is controlled by London‐van der Waals attraction, electrostatic double‐layer, and Born repulsion interaction energies.…”

Section: Introductionmentioning

confidence: 99%

Mobilization of Attached Clustered Colloids in Porous Media

Chequer

Bedrikovetsky

Carageorgos

et al. 2019

Water Resources Research

View full text Add to dashboard Cite

The models for colloidal mobilization in porous media are often based on Derjaguin‐Landau‐Verwey‐Overbeek interaction energy profiles. Despite abundant evidence on mobilization of particle clusters, the models to date have been limited to single colloid‐surface Derjaguin‐Landau‐Verwey‐Overbeek calculations. We show through visualization tests, qualitative and quantitative modeling, and data evaluation, that the widely accepted single colloid‐single surface isolation does not always adequately describe colloid behavior. The experiments were performed with kaolinite and latex particles mobilized from sand grains and glass beads in a transparent visualization cell. The particles were mobilized under increasing velocity and pH and decreasing salinity. The detachment conditions were determined by a torque balance of electrostatic, drag, lifting, and gravity forces, combined with a theory of a contact area between a single soft particle and a plane surface. The tests show that the calculations based on the mechanical equilibrium of a single particle on a plane surface significantly underestimate the critical detachment velocity. A better prediction is obtained using a cluster approximation. High‐resolution images taken during mobilization tests show 2‐12 particle clusters on media surface and in its proximity. The mechanical‐equilibrium calculations show that the attaching torque for clusters with assumed size and cylindrical shape is significantly higher than that for single particles. The critical detachment velocity of clusters, derived from the mechanical‐equilibrium force and torque balances, is higher than for single particles and provides a better fit to the experimental data. Our study suggests that a cluster approximation can accurately predict the mobilization of colloids in porous media.

show abstract

Virus attachment onto quartz sand: Role of grain size and temperature

Cited by 40 publications

References 40 publications

Correlation equations for average deposition rate coefficients of nanoparticles in a cylindrical pore

Correlation equations for average deposition rate coefficients of nanoparticles in a cylindrical pore

Overland Transport of Rotavirus and the Effect of Soil Type and Vegetation

Mobilization of Attached Clustered Colloids in Porous Media

Contact Info

Product

Resources

About