Degradação de corantes têxteis e remediação de resíduos de tingimento por processos Fenton, foto-Fenton e eletro-Fenton

Química Nova

Terezinha Salvador¹  Luiz H. Marcolino Jr.¹  Patricio Peralta-Zamora¹ 

[1] Universidade Federal do Paraná;

关键词: textile dyes;    degradation;    electro-Fenton;   

DOI  :  10.1590/S0100-40422012000500013

来源: DOAJ

【 摘 要 】

In this work the degradation of textile dyes were evaluated, using Fenton, photo-Fenton and electro-Fenton processes. Under optimized conditions Fenton and photo-Fenton processes showed high decolorization capacity of the model dyes. The electro-Fenton process was carried out in an undivided electrochemical reactor (1000 mL) equipped with a carbon-felt cathode (253 cm²) and a platinum gauze anode (6 cm²). Under optimal conditions (J: 1.6 mA cm-2, Na2SO4: 0.075 mol L-1, pH: 3) H2O2 concentration of about 60 mg L-1 was observed. The addition of Fe2+ (15 mg L-1) induces Fenton reactions that permit almost total decolorization of textile dyes.

【 授权许可】

Unknown