Resumo

PEREZ GARCIA, Pablo Marcelo; IBANEZ-CALERO, Sandra L.  e  ESCALERA VASQUEZ, Ramiro. DEGRADATION OF SYNTHETIC ORGANIC DYES IN SOLUTION BY FERRATE - HYPOCHLORITE OR CALCIUM HYPOCHLORITE. Inv. y Des. [online]. 2017, vol.1, n.17, pp.43-53. ISSN 1814-6333.

This study investigated the use of ferrate - hypochlorite solution or solid Ca(OCl)₂ as treatment options to remove color and COD from solutions of the synthetic organic dyes: Reactive blue 19, Allura red and Reactive black 5. It was found that doses around 1000 ppmCa(OCl)₂ had color removal efficienciesaround 90 % for all the dyes after 15 minutes reaction time; this treatment had a COD removal efficiency of 97 % forazo dyeAllura red. The ferrate - hypochlorite (0.06 mM - <400 ppm) treatment resulted in a 50% color removal for Reactive blue 19 dye after 1 hour reaction time. The COD removal of Reactive blue 19 dye was improved from 40% to 84% when the ferrate - hypochlorite solution was used.

Palavras-chave : Ferrate; Synthetic Organic Dyes; Hipochlorite; COD Removal.

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