Resumo

VAZQUEZ, M.V.; HERNANDEZ-LUIS, F.; GRANDOSO, D.  e  ARBELO, C.D.. Study of the Electrical Resistance of Andisols Subjected to Electro-Remediation Treatment. Port. Electrochim. Acta [online]. 2004, vol.22, n.4, pp.399-410. ISSN 0872-1904.

Studies of soil resistance suggest that this type of measurement when carried out simultaneously with decontamination treatment, serves as a rapid method for analyzing the behavior of different soils under study, especially when an electric field is not applied.The variation observed in the first step of electro-remediation is related to the ionic content of the segments adjacent to the electrodes. The use of a wash flow facilitates the formation of "ionic batches" near the electrodes. The soil with the higher content of organic material shows lower resistance in the first stage of the treatment. Measuring the electrolysis current without the use of wash flow, together with the other experimental parameters, allows the evaluation of the soil characteristics in experiments of relatively short duration.

Palavras-chave : andisols; electrolysis current; electrical resistance; electro-remediation; heavy metals.

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