Ανίχνευση και προσδιορισμός αζωχρωμάτων και προϊόντων διάσπασης αυτών με ανάπτυξη ηλεκτροχημικής μεθόδου κατεργασίας αποβλήτων βαφείων και υφαντουργείων

Abstract

The primitive aim of the PhD Thesis is the development of an electrochemical method for textile wastewater treatment, which contains non biodegradable azodyes. Consequently, primary azodyes are determined using UV-Vis spectrometric and voltammetric techniques. Additionally, they are separated and identified using High Pressure Liquid Chromatography (HPLC) and Mass Spectrometry (MS). Final degradation products are also separated and identified using HPLC coupled with Mass Spectrometer (LC-MS). Solid Phase Extraction is used for chemical interferences and salts removal. Electrochemical method under electrolytic conditions using suitable materials as electrodes, achieves quick decoloration up to 90%, without any sludge formation and any chemical additives. Environmental parameters such as COD, BOD5 and TOC are satisfactory reduced and final degradation products are determined in very low concentrations.