The use of mordants, especially CuSO4 and FeSO4, not only enhanced colour strength but also imparted different colours to the fabric. Compared to the unmordanted fabrics, colour fastness properties were mostly comparable or improved in the mordanted fabrics depending on the type and concentration ...
More than 98% of colour and 92% of COD removal were obtained for the dye solutions. For obtaining high colour and COD removal H2O2 concentration had to be increased 3 times when RR concentration was doubled whereas FeSO4 was to be increased 2.5 times for the dye mixture. The results ...
Abstract The removal of Orange \\{II\\} (O-II) from aqueous solution under irradiation at 850 kHz has been studied. The effects of both homogeneous (with FeSO4/H2O2), and heterogeneous (Fe containing ZSM-5 zeolite/H2O2) Fenton type reagents are reported together with the effect of \\{...