Permeable Adsorptive Barrier (PAB) for the remediation of groundwater simultaneously contaminated by some chlorinated organic compounds

Erto, Alessandro; Bortone, I.; Nardo, Armando Di; Natale, Michele Di; Musmarra, Dino

doi:10.1016/j.jenvman.2014.03.012

Cited by 46 publications

(19 citation statements)

References 27 publications

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“…It is almost always the cheapest and most effective strategy to protect water quality. Unfortunately, nowadays the quality of many water sources and watersheds has already been compromised and remediation and treatment are required (Bortone et al 2013;Leone et al 2013; UNEP (United Nations Environment Programme) 2010; Erto et al 2014). All the toxic substances discharged from a treatment plant or a septic system can potentially end up in surface or groundwater that may ultimately be used as a source of drinking water (Iovino et al 2015;Salladini et al 2007;Salvestrini et al 2010;Teixeira et al 2016) .…”

Section: Introductionmentioning

confidence: 99%

Degradation of Ibuprofen in Aqueous Solution with UV Light: the Effect of Reactor Volume and pH

Iovino

Chianese²,

Canzano

et al. 2016

Water Air Soil Pollut

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The presence of trace of pharmaceutical compounds (PhACs) in groundwater and in drinking and superficial waters is a major public health concern. Recently, various advanced treatment technologies have been studied to remove these kinds of pollutants; among them, combined treatments based on UV light appear to be more eco-friendly and with very interesting removal efficiencies if properly modified. In this paper, the removal of Ibuprofen (IBP) from synthetic water streams was investigated by using a lab-scale experimental device consisting of a batch reactor equipped with a lamp emitting monochromatic UV light (254 nm; 400 mJ m −2 ). The IBP initial concentration (C IBP 0 ) was 45.9 mg L −1 . Two sets of experiments were carried out; the first one was aimed at studying the IBP concentration as a function of time, at different volumes of treated solution; the second one was aimed at exploring the effect of pH on IBP degradation as a function of time.The results obtained show that the concentration of IBP decreases along with treatment time, with a negative effect of the treated volume, i.e., smaller volumes, that is lower liquid heights, are more easily degraded. Moreover, the higher the pH, the better the IBP degradation; actually when pH increases from 2.25 to 5.51 and finally to 8.25, the IBP concentration, after an hour of treatment, decreases respectively to 45, 34, and 27 % from its initial value. A reaction mechanism is suggested, which well describes the effects of volume and pH on the experimentally measured IBP degradation.

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Section: Introductionmentioning

confidence: 99%

Degradation of Ibuprofen in Aqueous Solution with UV Light: the Effect of Reactor Volume and pH

Iovino

Chianese²,

Canzano

et al. 2016

Water Air Soil Pollut

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“…The barycentric case study considers a hydraulic conductivity Ks 2 =: 5 × 10 −5 m s −1 , and longitudinal, transversal and vertical dispersivity equal to α x2 = 1 m and α y2 = 0.1 m, respectively, corresponding to the Case 5 reported in Table 2 [26,30]. Starting from this set of parameters, for hydraulic conductivity and for each component of the dispersivity, a lower and a higher value were considered.…”

Section: Sensitivity Analysismentioning

confidence: 99%

“…In particular, PRB is a very promising groundwater remediation technique, which can be adopted also in case of multiple contaminations [26]. PRB technique consists in the insertion of a permeable wall into the contaminated aquifer, designed to intercept the whole polluted water flowing under the natural groundwater gradient.…”

Section: Introductionmentioning

confidence: 99%

Design of Permeable Adsorptive Barriers (PABs) for groundwater remediation by COMSOL Multi-physics simulations

Bortone¹,

Erto

Santonastaso³

et al. 2014

Desalination and Water Treatment

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A B S T R A C TThis work deals with an innovative approach to design a permeable reactive barrier (PRB) filled with activated carbon, namely a permeable adsorptive barrier (PAB). A 2D numerical model, solved using a finite element approach via COMSOL Multi-physics, was used to describe the pollutant transport within groundwater and the pollutant adsorption onto the barrier. The PAB design procedure was applied to a benzene-contaminated aquifer situated in the metropolitan area of North Naples (Italy), lately hit the headlines as "Gomorra's land". Model results showed that PAB is an effective tool for the remediation of the aquifer under analysis, since the pollutant concentration downstream the barrier resulted everywhere lower than the regulatory limit set for groundwater. A sensitivity analysis was carried out to evaluate the influence of some site parameters on the PAB design, i.e. hydraulic conductivity and dispersivity. Finally, the simulation results allow estimating the long-term efficiency of the treatment system and the time required to achieve a complete restoration of the aquifer.

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“…[1][2][3][4][5][6][7] AC has been used as an adsorbent for organic contaminants in a range of permeable reactive barriers (PRBs), 8,9 especially for the remediation of groundwater contaminated by chlorinated organic compounds. 10 To better utilize the AC-PRBs, differently designed structures of the PRBs were investigated and applied in groundwater remediation. 11 PRB offers the potential for low-cost remediation, taking advantage of the passive groundwater ow to bring the contaminants in contact with the reactive materials in the barrier.…”

Section: Introductionmentioning

confidence: 99%

Effects of calcium ion and pH on the adsorption/regeneration process by activated carbon permeable reactive barriers

Chen

et al. 2018

RSC Adv.

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Permeable Adsorptive Barrier (PAB) for the remediation of groundwater simultaneously contaminated by some chlorinated organic compounds

Cited by 46 publications

References 27 publications

Degradation of Ibuprofen in Aqueous Solution with UV Light: the Effect of Reactor Volume and pH

Degradation of Ibuprofen in Aqueous Solution with UV Light: the Effect of Reactor Volume and pH

Design of Permeable Adsorptive Barriers (PABs) for groundwater remediation by COMSOL Multi-physics simulations

Effects of calcium ion and pH on the adsorption/regeneration process by activated carbon permeable reactive barriers

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