An acidic leachate obtained from a contaminated soil was generated using hydrochloric acid (HCl) ... more An acidic leachate obtained from a contaminated soil was generated using hydrochloric acid (HCl) as a soil-washing agent and treated by nanofiltration (NF) membranes. This solution was studied in terms of different parameters, such as transmembrane pressures and flow rate, to evaluate membrane permeabilities and ion separation. The experimental results showed that the application of NF membranes is a promising alternative for the removal of metal ions from washing-solutions. For example, both membranes demonstrated a retention capacity higher for multivalent ions such as Al 3+ , Ca 2+ , Mg 2+ and Mn 2+ (between 84 and 100%) compared to monovalent ions such as K + and Na + (less than 68%). Additionally, variation in dynamic permeability using the acidic leachate solution due to concentration polarization is presented. Furthermore, the permeation of NaCl-H 2 O solutions at different feed pH values (5.8, 3.7 and 2.2) was investigated.
Leachate Nanofiltration Sulfuric acid Hydrochloric acid Sodium chloride Ion removal Electrochemic... more Leachate Nanofiltration Sulfuric acid Hydrochloric acid Sodium chloride Ion removal Electrochemical treatment a b s t r a c t This research was conducted to integrate soil washing, nanofiltration (NF) membranes and electrochemical treatment as feasible methods for the remediation of contaminated soils.
An acidic leachate obtained from a contaminated soil was generated using hydrochloric acid (HCl) ... more An acidic leachate obtained from a contaminated soil was generated using hydrochloric acid (HCl) as a soil-washing agent and treated by nanofiltration (NF) membranes. This solution was studied in terms of different parameters, such as transmembrane pressures and flow rate, to evaluate membrane permeabilities and ion separation. The experimental results showed that the application of NF membranes is a promising alternative for the removal of metal ions from washing-solutions. For example, both membranes demonstrated a retention capacity higher for multivalent ions such as Al 3+ , Ca 2+ , Mg 2+ and Mn 2+ (between 84 and 100%) compared to monovalent ions such as K + and Na + (less than 68%). Additionally, variation in dynamic permeability using the acidic leachate solution due to concentration polarization is presented. Furthermore, the permeation of NaCl-H 2 O solutions at different feed pH values (5.8, 3.7 and 2.2) was investigated.
Leachate Nanofiltration Sulfuric acid Hydrochloric acid Sodium chloride Ion removal Electrochemic... more Leachate Nanofiltration Sulfuric acid Hydrochloric acid Sodium chloride Ion removal Electrochemical treatment a b s t r a c t This research was conducted to integrate soil washing, nanofiltration (NF) membranes and electrochemical treatment as feasible methods for the remediation of contaminated soils.
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