Publikace detail

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

Autoři: Smolný Marek | Palarčík Jiří | Cakl Jiří

Rok: 2019

Druh publikace: ostatní - článek ve sborníku

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

Název nakladatele: National Institut of Chemistry

Místo vydání: Lublaň

Strana od-do: 723-724

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
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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