Treatment of a reactive dye, a disperse dye, and their mixtures using H2O2/pyridine/Cu (II) system

Simple item page
dc.contributor.authorLim, Chooi Ling
dc.date.accessioned2016-11-01T03:29:43Z
dc.date.available2016-11-01T03:29:43Z
dc.date.issued2009-07
dc.description.abstractThe I-h02/pyridine/Cu(II) system is a series of advanced oxidation processes involving the use of a chelating ligand, combined with a transition metal, forming the transition metal complexes to produce reactive radicals. This system was used to assess the efficiency of the treatment of a 1 giL synthetic dye wastewater comprising of a reactive dye, (Cibacron Red FN-R), a disperse dye (Terasil Red R), mixtures of a reactive dye (RO) and a disperse dye (DO) in three different ratios (RD: DO = 0.25: 0.75,0.50: 0.50, and 0.75: 0.25), and a real industrial dye wastewater. Reactive and disperse dye powders were selected to be used in this study as these two dyes are used widely as compared to dyes from other classes due to their superior performance. Experimental results are assessed in terms of percentage chemical oxygen demand (COD) reduction, decolourization, and the amount of sludge produced. Optimal operating parameters were obtained using statistical design of experiment. The optimal parameters were 0.059 M [H202]/ 0.087 M [pyridine]/ 0.0171 M [CuOI)] for reactive dye wastewater, 0.0055 M [H20 2]/ 0.038 M [pyridine]/ 0.00168 M [Cu(II)] for synthetic disperse dye wastewater, 0.004 M [H20 2]/ 0.05 M [pyridine]/ 0.0186 M [Cu(II)] for (RD: DD = 0.75:0.25), 0.024 M [H20 2]/ 0.106 M [pyridine]/ 0.019 M [Cu(IJ)] for (RD: DD = 0.50:0.50),0.002 M [H20 2]/ 0.066 M [pyridine]/ 0.0018 M [Cu(lI)] for (RD: DD = 0.25:0.75), and pH 10/ 0.0023 M [H20 2]/ 0.0073 M [pyridine]/ 0.0123 M [Cu(n)] for industrial dye wastewater. This system was found to be capable in reducing the concentration of COD of the dye wastewater within the range of 73 % - 92%, and achieving 93 % - 99 % in dccolourization at the respective optimal conditions of process variables of the wastewaters being studied, while the amount of sludge produced for synthetic dyes was within the range 20 mg/L - 330 mg/L, and industrial dye wastewater at 260 mg/L - 555 mg/L. Full 24 factorial design and the response surface methodology using central composite design (CCD) were utilized in the screening and optimization of this study. Treatment efficiency was found to be pH independent for all synthetic dyes.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2941
dc.subjectThe I-h02/pyridine/Cu(II) system is a series of advanced oxidation processesen_US
dc.subjectinvolving the use of a chelating liganden_US
dc.titleTreatment of a reactive dye, a disperse dye, and their mixtures using H2O2/pyridine/Cu (II) systemen_US
dc.typeThesisen_US
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Pusat Pengajian Teknologi Industri - Tesis