The effect of temperature on toluene sorption by granular activated carbon and its use in permeable reactive barriers in cold regions

Arora, Meenakshi; Snape, Ian; Stevens, Geoffrey W.

doi:10.1016/j.coldregions.2010.12.007

Cited by 16 publications

(12 citation statements)

References 23 publications

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“…The mineral materials were not subject to pretreatment to ensure use of the most economically favorable material, as these relatively cheap materials are widely used for water treatment processes [40][41][42][43], and also in the phytostabilisation of soils contaminated by heavy metals [44,45]. The only exception is activated carbon, which was selected as a reference material due to its wide application in the treatment of contaminants in the soil-water environment using permeable reactive barrier technology [46][47][48][49]. Surface morphology and oxide composition of the applied materials were determined using scanning electron microscopy (FEG Quanta 250, USA) and X-ray spectroscopy with energy dispersion X-ray microscopy -EDS by EDAX (USA).…”

Section: Methodsmentioning

confidence: 99%

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

Fronczyk

Mumford

2019

Applied Sciences

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Appropriate management of urban stormwater requires consideration of both water quantity, resulting from flood control requirements, and water quality, being a consequence of contaminant distribution via runoff water. This article focuses on the impact of temperature on the efficiency of stormwater treatment processes in permeable infiltration systems. Studies of the removal capacity of activated carbon, diatomite, halloysite, limestone sand and zeolite for select heavy metals (Cu and Zn) and biogenes (NH4-N and PO4-P) were performed in batch conditions at 3, 6, 10, 15, 22, 30 and 40 °C at low initial concentrations, and maximum sorption capacities determined at 3, 10, 22 and 40 °C. A decrease in temperature to 3 °C reduced the maximum sorption capacities (Qmax) of the applied materials in the range of 10% for diatomite uptake of PO4-P, to 46% for halloysite uptake of Cu. Only the value of Qmax for halloysite, limestone sand and diatomite for NH4-N uptake decreased slightly with temperature increase. A positive correlation was also observed for the equilibrium sorption (Qe) of Cu and Zn for analyses performed at low concentrations (with the exception of Zn sorption on limestone sand). In turn, for biogenes a rising trend was observed only in the range of 3 °C to 22 °C, whereas further temperature increase caused a decrease of Qe. Temperature had the largest influence on the removal of copper and the smallest on the removal of phosphates. It was also observed that the impact of temperature on the process of phosphate removal on all materials and ammonium ions on all materials, with the exception of zeolite, was negligible.

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Section: Methodsmentioning

confidence: 99%

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

Fronczyk

Mumford

2019

Applied Sciences

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“…The influence of petroleum hydrocarbons on nutrient release from Polyon™ and Zeopro™ was examined under stirred batch conditions and duplicated at 4 C and 23 C. The CRN material (10 g) was contacted with 1000 ml of sterilised deionised water in an Erlenmeyer flask and spiked with toluene (C 7 H 8 ) (99.90%, ChemSupply) at 1.08 mmol/L or 3.25 mmol/L at 4 C and 23 C. The solubility of toluene in water is 5.59 mmol/L at 23 C (Arora et al, 2011). Toluene controls (1.08 mmol/L toluene with no CRN material) and controls (CRN material with no toluene) were established at 4 C and 23 C.…”

Section: Influence Of Petroleum Hydrocarbon Concentrationmentioning

confidence: 99%

“…Analysis of toluene in water was conducted using High Performance Liquid Chromatography (Shimadzu, RP-HPLC) as described previously (Arora et al, 2011).…”

Section: Petroleum Hydrocarbon Analysismentioning

confidence: 99%

“…The effectiveness of petroleum hydrocarbon adsorption materials such as granular activated carbon (GAC) in PRBs has been well reported (Karanfil and Kilduff, 1999;Arora et al, 2011;Mumford et al, 2015). However, in the absence of biodegradation, the finite adsorption capacity of GAC presents issues associated with breakthrough, regeneration and disposal as a hazardous material.…”

Section: Introductionmentioning

confidence: 99%

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Application of controlled nutrient release to permeable reactive barriers

Freidman

Gras²,

Snape

et al. 2016

Journal of Environmental Management

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“…Carbon presents a high adsorption capacity for many organic and inorganic contaminants for its high surface area, due to the micro-porous structure, and a high degree of surface reactivity caused by surface oxide groups and inorganic impurities [23], using GAC has a grain-size distribution of 0.3-2.36 mm, and it was selected for this study. Its properties are shown in Table 1, with the density (r s =1.43 g/cm 3 ).…”

Section: Materials and Characterizationsmentioning

confidence: 99%

Optimization of hexavalent chromium removal from aqueous solution using acid-modified granular activated carbon as adsorbent through response surface methodology

Daoud

Ebadi

Fahimifar

2015

Korean J. Chem. Eng.

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Response surface methodology (RSM) was applied to evaluate the effect of the main operational variables, including initial pH, initial chromium ion concentration, bulk density of GAC and time on the removal of hexavalent chromium Cr(VI) from contaminated groundwater by permeable reactive barriers (PRB) with acid-modified granular activated carbon (GAC) as an adsorbent material. The removal rates of Cr(VI) under different values of these parameters were investigated and results indicated high adsorption capacity at low pH and low initial metal ion concentration of Cr(VI), but the bulk density of GAC slightly influenced the process efficiency. According to the ANOVA (analysis of variance) results, the model presents high R 2 values of 94.35% for Cr(VI) removal efficiency, which indicates that the accuracy of the polynomial models was good. Also, quadratic regression models with estimated coefficients were developed to describe the pollutant removals.

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The effect of temperature on toluene sorption by granular activated carbon and its use in permeable reactive barriers in cold regions

Cited by 16 publications

References 23 publications

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

The Impact of Temperature on the Removal of Inorganic Contaminants Typical of Urban Stormwater

Application of controlled nutrient release to permeable reactive barriers

Optimization of hexavalent chromium removal from aqueous solution using acid-modified granular activated carbon as adsorbent through response surface methodology

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