Competitive adsorption and transport of phthalate esters in the clay layer of JiangHan plain, China

Liu, Hui; Zhang, Dan; Li, Minjing; Tong, Lei; Feng, Liang

doi:10.1016/j.chemosphere.2013.04.026

Cited by 52 publications

(34 citation statements)

References 33 publications

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“…ACE was completely degraded within three days before the significant interference by sediment size decrease occurred. Previous studies by others have also demonstrated the desorption rates of hydrophobic contaminants are often much slower than their transformation rates, resulting in lower degradation rates for such contaminants (Salim et al, 2010;Liu et al, 2013). Nearly all treatment processes for soil, groundwater, and sediment are effective only for aqueous phase contaminants.…”

Section: Comparison Of Catalytic Performance Of Nano-shm and Nanogoetmentioning

confidence: 88%

Degradation of phthalate esters and acetaminophen in river sediments using the electrokinetic process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite

et al. 2016

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Section: Comparison Of Catalytic Performance Of Nano-shm and Nanogoetmentioning

confidence: 88%

Degradation of phthalate esters and acetaminophen in river sediments using the electrokinetic process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite

et al. 2016

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“…The adsorption rate of DEHP was higher than that of DMP. Liu et al [1] reported that adsorption rate was closely related to the straight carbon chain length and followed the order of DMP < DEP < DiBP < DBP < DEHP. From Table 1, we can presume that the surface area and average pore diameter distributions of the adsorbents did not remarkably affect adsorption.…”

Section: Adsorption Kineticsmentioning

confidence: 98%

“…(2015) [1][2][3][4][5][6][7][8][9][10][11][12][13][14] www.deswater.com doi: 10.1080/19443994.2015.1091987 have reached 100 mg/L [3]. PAEs have been classified as a priority pollutant and an endocrine-disrupting compound by the European Environment Agency and US Environmental Protection Agency because of its large production and extensive distribution [4].…”

Section: Desalination and Water Treatmentmentioning

confidence: 98%

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Adsorption of PAEs from aqueous solution by modified zeolites

Wang

et al. 2015

Desalination and Water Treatment

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A B S T R A C TNatural zeolites (NZ), zeolites modified with hexadecyl trimethylammonium bromide (CTMZ), and zeolites modified with hexadecyl trimethyl ammonium bromide/sodium dodecyl sulfate (CSMZ) were prepared and used for the adsorption of phthalate esters (PAEs). The adsorbents were characterized using scanning election microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric, BrunauerEmmett-Teller, and organic carbon analyses. Adsorption characteristics, such as kinetics, isotherms, thermodynamics, and renewability, were also evaluated. The amount of PAEs adsorbed followed the order of CSMZ > CTMZ > NZ at all adsorption times. The kinetic data were fitted into three kinetic models, namely, pseudo-first-order, pseudo-second-order, and intra-particle diffusion. The pseudo-second-order model was the most suitable in describing the experimental process. The adsorption isotherms were also correlated using four different models. The equilibrium adsorption data of PAEs fitted better with the linear isotherm model for CTMZ and CSMZ and with the non-linear isotherm model for NZ. Hence, partition primarily contributes to PAEs adsorption onto CTMZ and CSMZ. PAEs adsorption onto NZ, CTMZ, and CSMZ was spontaneous and exothermic in nature, and was not affected by pH. The regeneration experiment results showed that CTMZ and CSMZ are potential adsorbents because of their low cost and reusability.

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“…These models typically outperform the ones that are based on a single-rate approach (see Pedit and Miller 1995;Gorelick 1995, 1998;Chen and Wagenet 1997;Culver et al 1997;Schnaar and Brusseau 2014;Akyol 2015). Nonetheless, single-rate models are still being used to predict and simulate solute transport in laboratory columns and in the field (e.g., Pot et al 2005;Kohne et al 2006;Dousset et al 2007;Maraqa et al 2011;Hanna et al 2012;Liu et al 2013;Bertelkamp et al 2014).…”

Section: Introductionmentioning

confidence: 95%

Ability of Single-Rate Models to Predict Solute Distribution Coefficients in Systems with Heterogeneous Sorption Kinetics

Maraqa

2016

Transp Porous Med

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Several sorption nonequilibrium models have been developed to gain a better understanding of solute transport in porous media, among which are those that assume a single-rate behavior. In this study, two commonly used single-rate models were fitted to computer-simulated breakthrough data from hypothetical column experiments in which multirate sorption kinetics exist at the pore scale. The objective was to determine how the sorption distribution coefficient (K ) predicted using these models depends on the conditions under which the data were obtained. Simulated cases covered a range of experimental conditions and involved compounds with different sorption characteristics and different degrees of sorption rate heterogeneity. Results revealed that, for a system with a multirate sorption behavior, the true K value is under-predicted if the parameter estimation is determined by curve fitting a single-rate model. The extent of deviation between the fitted and true K increases with the decrease in residence time and increase in sorption rate heterogeneity. Functional relationships were developed between the relative reduction in K and solute residence time. Analysis using the relationships developed suggests that a major potential cause of the previously reported discrepancy between batch-and column-determined K could be attributed to the use of single-rate models for parameter prediction.

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Competitive adsorption and transport of phthalate esters in the clay layer of JiangHan plain, China

Cited by 52 publications

References 33 publications

Degradation of phthalate esters and acetaminophen in river sediments using the electrokinetic process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite

Degradation of phthalate esters and acetaminophen in river sediments using the electrokinetic process integrated with a novel Fenton-like process catalyzed by nanoscale schwertmannite

Adsorption of PAEs from aqueous solution by modified zeolites

Ability of Single-Rate Models to Predict Solute Distribution Coefficients in Systems with Heterogeneous Sorption Kinetics

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