Artículos de revistas
Tratamento de água subterrânea contaminada com compostos organoclorados usando ferro elementar e o reagente de Fenton
Treatment of groundwater contaminated with chlorinated compounds using elemental iron and Fenton's reagent
Registro en:
Química Nova. Sociedade Brasileira de Química, v. 30, n. 7, p. 1628-1632, 2007.
0100-4042
S0100-40422007000700024
10.1590/S0100-40422007000700024
Autor
Arruda, Tatiana Langbeck de
Jardim, Wilson F.
Institución
Resumen
The remediation of groundwater containing organochlorine compounds was evaluated using a reductive system with zero-valent iron, and the reductive process coupled with Fenton's reagent. The concentration of the individual target compounds reached up to 400 mg L-1 in the sample. Marked reductions in the chlorinated compounds were observed in the reductive process. The degradation followed pseudo-first-order kinetics in terms of the contaminant and was dependent on the sample contact time with the solid reducing agent. An oxidative test with Fenton's reagent, followed by the reductive assay, showed that tetrachloroethylene was further reduced up to three times the initial concentration. The destruction of chloroform, however, demands an additional treatment. 1628 1632