Comparative Study on Oxidation of Two Structurally Different Commercial Reactive Dyestuffs by Microwave Photochemistry
The oxidation of Reactive Red 2 and Reactive Blue19 wastewaters were studied by microwave (MW) irradiation alone, hydrogen peroxide (H2O2) alone, microwave electrodeless lamp (MWL) irradiation, MW and H2O2 (MW/ H2O2), a combination of MWL and H2O2 (MWL/H2O2), respectively. The result showed: there exists synergetic function of MWL and H2O2. Considering the color and total organic carbon (TOC) removal, the oxidation ability of different oxidation methods was that: MWL/H2O2＞MW/H2O2＞MWL＞H2O2 alone＞MW alone. Monoazo Reactive Red 2 is more degraded than anthraquinone Reactive Blue19 wastewaters. When the dye wastewaters initial concentration is 100 mg/L, treating time was 20 min,the color removal of Reactive Red 2 and Reactive Blue19 was 99.08％ and 55.57％ by MWL/H2O2, then the TOC removal ratio was only 50.31％and 0, respectively.When treating time was 80 min,the color removal was 100％ and 94.61％ and TOC removal ratio were up to 58.79％ and 51.85％, respectively. MWL/H2O2 has a good prospect for the treatment of dye wastewates.
microwave electrodeless lamp Reactive Red 2 Reactive Blue19 dye wastewaters hydrogen peroxide degradation
SHI Yintao XIA Dongsheng ZENG Qingfu
School of Environment and Urban Construstion, Wuhan University of Science and Engineering, Wuhan 470 The Research Centre of Environmental Science, Wuhan Universsity of Science and Engineering, Wuhan 43
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）