کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
178058 459014 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison among O3, PAC adsorption, O3/HCO3−, O3/H2O2 and O3/PAC processes for the removal of Bomaplex Red CR-L dye from aqueous solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Comparison among O3, PAC adsorption, O3/HCO3−, O3/H2O2 and O3/PAC processes for the removal of Bomaplex Red CR-L dye from aqueous solution
چکیده انگلیسی

Various processes including O3, powder activated carbon (PAC) adsorption, O3/HCO3−, O3/H2O2 and O3/PAC were used in order to remove dye and chemical oxygen demand (COD) from synthetic wastewater containing Bomaplex Red CR-L dye in a semi-batch reactor. These processes rapidly removed the dye and COD from dye solution. The dye removal efficiency was over 99% for a reaction period of 30 min for all the processes. It was observed that PAC adsorption and O3/PAC processes were considerably more effective than ozonation process for the removal of COD from dye solution. The COD removal efficiency of O3/PAC was higher than PAC adsorption process. O3/PAC process was considerably effective to remove COD from dye solutions despite using less amount of PAC (approximately four times less than one used for PAC adsorption) for the same amount of COD removal with a higher efficiency. O3/HCO3− process positively affected the COD removal efficiency, whereas O3/H2O2 process negatively affected the COD removal efficiency as compared to the ozonation process alone. In addition, the yield and mechanisms of dye removal were also explained on the basis of the results of Fourier transform infrared spectroscopy (FTIR). It was concluded that the O3/PAC process is a highly efficient process to remove dye and COD from synthetic textile wastewaters as compared to the other processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 74, Issue 2, 2007, Pages 329–334
نویسندگان
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