Original Title:
Βελτιστοποιήση των παραγόντων που επηρεάζουν την αποικοδόμηση υψηλών συγκεντρώσεων εμπορικά διαθέσιμων αζωχρωμάτων, που χρησιμοποιούνται στην υφαντουργία, με εφαρμογή ηλεκτροχημικής κατεργασίας
Summary:
An electrochemical method for wastewater treatment based on the electrolytic
degradation of azodyes is discussed in this paper. Τwo cathodes made of
stainless steel (SS) and one anode made of niobe/synthetic diamond doped with
boron (Nd/D) were used. The aim of this work is to find the optimized
conditions, affecting the electrochemical treatment and explore the
effectiveness of the electrochemical degradation. For this purpose, four
commercial azodyes at various initial concentrations were used. For first time,
the effectiveness of this technique at highly concentrated azodyes was
explored. For first time also, the degradation of a disperse dye was
investigated. The optimized conditions for the spectrophotometric determination
of the disperse azodye were determined. Moreover, the degradation of the
azodyes and the optimized conditions affecting the procedure (concentration of
supporting electrolyte, pH, applied current etc.) were investigated. The
kinetics of the process was studied. Chemical Oxygen Demand (COD), Total
Organic Carbon (TOC) and energy consumption (EC) were measured.
Keywords:
Αzodyes, Εlectrochemical treatment, Degradation, Textile, Wastewater
