Premium
Degradation of reactive dyes by supercritical water oxidation in a batch reactor
Author(s) -
Koech G.C.,
Hatakeda K.
Publication year - 2002
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2002.tb00366.x
Subject(s) - chemistry , hydrogen peroxide , absorbance , supercritical fluid , supercritical water oxidation , batch reactor , degradation (telecommunications) , spectrophotometry , nuclear chemistry , inorganic chemistry , chromatography , organic chemistry , catalysis , telecommunications , computer science
The supercritical water oxidation of three reactive dyes in a batch reactor was studied with varying levels of hydrogen peroxide oxidant. The decolorisation of each dye was measured by absorbance spectrophotometry and quantitatively determined from calibration graphs for each of the three dyes. At the lowest excess oxidant concentration (zero excess), the extent of chromogen destruction was nominally lower for the red dye than for the blue and black dyes.