Santonastaso, Giovanni FrancescoBortone, ImmacolataChianese, SimeoneDi Nardo, ArmandoDi Natale, MicheleErto, AlessandroKaratza, DespinaMusmarra, Dino2017-10-192017-10-192017-09-19Santonastaso, G.F., Bortone, I., Chianese, S. et al. Discontinuous permeable adsorptive barrier design and cost analysis: a methodological approach to optimisation. Environmental Science and Pollution Research, September 2018, Volume 25, Issue 27, pp 26793–268000944-1344https://doi.org/10.1007/s11356-017-0220-yhttp://dspace.lib.cranfield.ac.uk/handle/1826/12660The following paper presents a method to optimise a discontinuous permeable adsorptive barrier (PAB-D). This method is based on the comparison of different PAB-D configurations obtained by changing some of the main PAB-D design parameters. In particular, the well diameters, the distance between two consecutive passive wells and the distance between two consecutive well lines were varied, and a cost analysis for each configuration was carried out in order to define the best performing and most cost-effective PAB-D configuration. As a case study, a benzene-contaminated aquifer located in an urban area in the north of Naples (Italy) was considered. The PAB-D configuration with a well diameter of 0.8 m resulted the best optimised layout in terms of performance and cost-effectiveness. Moreover, in order to identify the best configuration for the remediation of the aquifer studied, a comparison with a continuous permeable adsorptive barrier (PAB-C) was added. In particular, this showed a 40% reduction of the total remediation costs by using the optimised PAB-D.enAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/Permeable adsorptive barrierBenzeneGroundwater remediationAdsorptionDesign and cost analysisDesign optimisationArticle