title: Permeable Adsorptive Barrier (PAB) for the remediation of groundwater simultaneously contaminated by some chlorinated organic compounds.
abstract: In this paper, a Permeable Reactive Barrier (PRB) made with activated carbon, namely a Permeable Adsorptive Barrier (PAB), is put forward as an effective technique for the remediation of aquifers simultaneously contaminated by some chlorinated organic compounds. A design procedure, based on a computer code and including different routines, is presented as a tool to accurately describe mass transport within the aquifer and adsorption/desorption phenomena occurring inside the barrier. The remediation of a contaminated aquifer near a solid waste landfill in the district of Napoli (Italy), where Tetrachloroethylene (PCE) and Trichloroethylene (TCE) are simultaneously present, is considered as a case study. A complete hydrological and geotechnical site characterization, as well as a number of dedicated adsorption laboratory tests for the determination of activated carbon PCE/TCE adsorption capacity in binary systems, are carried out to support the barrier design. By means of a series of numerical simulations it is possible to determine the optimal barrier location, orientation and dimensions. PABs appear to be an effective remediation tool for the in-situ treatment of an aquifer contaminated by PCE and TCE simultaneously, as the concentration of both compounds flowing out of the barrier is everywhere lower than the regulatory limits on groundwater quality.
authors.affiliation: Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio 80, 80125 Napoli, Italy. Electronic address: aleserto@unina.it.
authors.forename: A
authors.initials: A
authors.lastname: Erto
authors.affiliation: Dipartimento di Ingegneria Civile, Design, Edilizia e Ambiente, Seconda Università degli Studi di Napoli, Via Roma 29, 81031 Aversa (CE), Italy.
authors.forename: I
authors.initials: I
authors.lastname: Bortone
authors.affiliation: Dipartimento di Ingegneria Civile, Design, Edilizia e Ambiente, Seconda Università degli Studi di Napoli, Via Roma 29, 81031 Aversa (CE), Italy.
authors.forename: A
authors.initials: A
authors.lastname: Di Nardo
authors.affiliation: Dipartimento di Ingegneria Civile, Design, Edilizia e Ambiente, Seconda Università degli Studi di Napoli, Via Roma 29, 81031 Aversa (CE), Italy.
authors.forename: M
authors.initials: M
authors.lastname: Di Natale
authors.affiliation: Dipartimento di Ingegneria Civile, Design, Edilizia e Ambiente, Seconda Università degli Studi di Napoli, Via Roma 29, 81031 Aversa (CE), Italy.
authors.forename: D
authors.initials: D
authors.lastname: Musmarra
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D060587:Groundwater / Q000737:chemistry; D013750:Tetrachloroethylene / Q000737:chemistry*; D014241:Trichloroethylene / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D014874:Water Pollutants, Chemical; D014241:Trichloroethylene; D002244:Carbon; D013750:Tetrachloroethylene
keywords: Activated carbon; Adsorption; Groundwater contamination; Permeable Reactive Barrier (PRB); Remediation