REMOVAL OF REACTIVE BLACK 5 FROM TEXTILE WASTEWATER BY OZONE AND PHOTO-FENTON ? INFLUENCE OF INDUSTRIAL MATRIX EFFECTS

S. HANELA; J.I. ÁVALOS; A.I. VEZZONI; V. CAINZOS; E. ROMERO; E. MIRÓ; S. FANTONI; S.N. DIAZ; R.J. CANDAL

LATIN AMERICAN APPLIED RESEARCH

PLAPIQUI(UNS-CONICET)

Lugar: Bahia Blanca; Año: 2020 vol. 50 p. 101 - 107

0327-0793

Textile waste water containing dyes, surfactants, salts and other contaminants represent a challenge for the selection and design of treatment processes due to the stability of some of its compo-nents. Advanced oxidation processes (AOPs) are at-tractive alternatives to partially or totally degrade dyes and other persistent pollutants using relatively compact devices to perform water treatment. To test the efficiency of these technologies it is necessary to count with laboratory made solutions that can match the characteristics of a typical textile waste waters ef-fluent. In this work the application of two AOP, ozo-nation and photo-Fenton, to the treatment of textile effluents are compared, using a specially design model solution. The effect of typical textile wastewater com-position on the treatment efficiency is discussed. Higher decoloration efficiencies were obtained with both AOPs tested in this work, being slightly higher with ozonation. TOC was only partially removed, be-ing more efficient photo-Fenton than ozonation.