OZONE REMEDIATION OF SOME PHENOL COMPOUNDS PRESENT IN FOOD PROCESSING WASTEWATER

摘要

Aqueous ozonation of four phenolic compounds(gallic acid, tyrosol,(+)- catechin and p-hydorxybenzoic acid)has been carried out in asemibatch reactor. The influence of the presence of free radicalscavengers(t-BuOH), inlet ozone Partial pressure and pH has beeninvestigated in aqueous solution using high Concentrations of thephenolic substances(up to 3 g L~-1), typically found in Wastewaterfrom food related industries.