caa a22 4500 47581651X CHVBK 20180406123811.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1023/A:1026557830268 doi (NATIONALLICENCE)springer-10.1023/A:1026557830268 Water splitting at ion-exchange membranes and potential differences in soil during electrodialytic soil remediation [Elektronische Daten] [L.M. Ottosen, H.K. Hansen, C.B. Hansen] The optimum current for electrodialytic soil remediation occurs when the limiting current of the anion-exchange membrane is exceeded while that for the cation-exchange membrane is not. At this current, an acidic front will pass through the soil from the anion-exchange membrane towards the cathode, and the polluting heavy metals will be mobilized in the acidic environment. At the same time no production of base will occur from the cation-exchange membrane. A basic environment causes precipitation of hydroxides in the soil next to the cation-exchange membrane, and this will give an increase in voltage drop in the system and furthermore hinder the transport of the heavy metals out of the soil. When the acidic front passes through the soil, the voltage drop will decrease, and the end of the remediation can be predicted by the decrease in voltage to a very low level between the working electrodes. Kluwer Academic Publishers, 2000 copper nationallicence electrochemical soil remediation nationallicence limiting current nationallicence soil pH nationallicence Ottosen L.M. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut Hansen H.K. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut Hansen C.B. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/11(2000-11-01), 1199-1207 0021-891X 30:11<1199 2000 30 10800 https://doi.org/10.1023/A:1026557830268 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1026557830268 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ottosen L.M. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut NATIONALLICENCE 700 1- Hansen H.K. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut NATIONALLICENCE 700 1- Hansen C.B. Department of Geology and Geotechnical Engineering, Technical University of Denmark, Building 204, 2800, Lyngby, Denmark aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/11(2000-11-01), 1199-1207 0021-891X 30:11<1199 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer