Publication detail

Water matrix limitations for removal of reactive azo dye from dyeing wastewaters using photocatalytic process

Authors: Smolný Marek | Palarčík Jiří | Cakl Jiří

Year: 2019

Type of publication: ostatní - článek ve sborníku

Name of source: 6th European Conference on Environmental Applications of Advanced Oxidation Processes (EAAOP-6) : book of extended abstracts

Publisher name: National Institut of Chemistry

Place: Lublaň

Page from-to: 723-724

Titles:

Language	Name	Abstract	Keywords
eng	Water matrix limitations for removal of reactive azo dye from dyeing wastewaters using photocatalytic process	The objective of this study was to demonstrate the advantages/disadvantages of reactive azo dye photocatalytic degradation in several complex matrices of simulated wastewater. A suspension photoreactor was equipped with TiO2 catalyst and irradiated using a low energy UV-A LED source. The inorganic ions present in the treated systems affected dye adsorption, caused colloidal instability and acted as a hydroxyl radical scavenger. The wastewater decolorization was a significantly faster process in comparison with the decrease in total organic carbon content in the reaction mixture. This indicates that total mineralization is a gradual, longer-term process and that the original dye is degraded through several degradation byproducts. The mineralization time was further significantly prolonged in the presence of organic nitrogen substances.	Reactive Azo Dye; Textile Wastewater; Photocatalytic Degradation, Urea, Titanium Dioxide, UV-A LED

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