title: Groundwater protection from cadmium contamination by permeable reactive barriers.
abstract: This work studies the reliability of an activated carbon permeable reactive barrier in removing cadmium from a contaminated shallow aquifer. Laboratory tests have been performed to characterize the equilibrium and kinetic adsorption properties of the activated carbon in cadmium-containing aqueous solutions. A 2D numerical model has been used to describe pollutant transport within a groundwater and the pollutant adsorption on the permeable adsorbing barrier (PRB). In particular, it has been considered the case of a permeable adsorbing barrier (PAB) used to protect a river from a Cd(II) contaminated groundwater. Numerical results show that the PAB can achieve a long-term efficiency by preventing river pollution for several months.
authors.affiliation: Dipartimento di Ingegneria chimica, Università di Federico II, P.le Tecchio, 80-80125 Naples, Italy. fdinatal@unina.it
authors.forename: F
authors.initials: F
authors.lastname: Di Natale
authors.forename: M
authors.initials: M
authors.lastname: Di Natale
authors.forename: R
authors.initials: R
authors.lastname: Greco
authors.forename: A
authors.initials: A
authors.lastname: Lancia
authors.forename: C
authors.initials: C
authors.lastname: Laudante
authors.forename: D
authors.initials: D
authors.lastname: Musmarra
mesh_terms: D000327:Adsorption; D002104:Cadmium / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D009566:Nitrates / Q000737:chemistry; D010539:Permeability; D013054:Spectrophotometry, Atomic; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000517:prevention & control*; D014881:Water Supply / Q000032:analysis*
chemical_list: D009566:Nitrates; D014874:Water Pollutants, Chemical; D002104:Cadmium; C031618:sodium nitrate