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Comparative degradation studies of Malachite Green and Thiazole Yellow G and their binary mixture using UV/H2O2
- Source :
- Desalination and Water Treatment. 57:8336-8342
- Publication Year :
- 2015
- Publisher :
- Informa UK Limited, 2015.
-
Abstract
- Wastewater effluents of many industries are usually composed of dye mixtures and their removal poses a significant challenge. The present study reports on the use of an advanced oxidation process namely UV/H2O2 to degrade Malachite Green (MG) (k = 0.0518 min−1) and Thiazole Yellow G (TYG) (k = 0.0367 min−1), and their binary mixture in aqueous solutions. Interestingly, it was seen that the photolytic degradation of dyes in binary solution was slower (by 10% for MG and by 46% for TYG) than that in neat solutions under comparable conditions. The total organic carbon analysis (TOC) was also carried out in both the neat dyes (38.5% decrease for MG and 13% decrease for TYG), and in mixture the TOC change was 40%. HPLC analyses confirmed the formation of intermediates in both individual dye solutions, which were however not seen in binary mixtures. The present work shows that dye mixtures behave very differently than neat dyes, and highlights the importance of studying complex dye mixtures and the possi...
- Subjects :
- Total organic carbon
Aqueous solution
Advanced oxidation process
Ocean Engineering
02 engineering and technology
010501 environmental sciences
021001 nanoscience & nanotechnology
Thiazole yellow
01 natural sciences
Pollution
High-performance liquid chromatography
chemistry.chemical_compound
chemistry
Organic chemistry
Degradation (geology)
Malachite green
0210 nano-technology
0105 earth and related environmental sciences
Water Science and Technology
Nuclear chemistry
Subjects
Details
- ISSN :
- 19443986 and 19443994
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Desalination and Water Treatment
- Accession number :
- edsair.doi...........e01bb0c0a0198d7cec1d9091494d2cf4