Abstract
A microwave assisted zero-valent iron oxidation process was studied in order to investigate the synergetic effects of MW irradiation on Fe/EDTA system (Fe/EDTA/MW) treated 4-nitrophenol (4-NP) from aqueous solution. The results indicated that the thermal effect of microwave improved the removal effect of 4-NP and TOC through raising the temperature of the system, as well as the non-thermal effect generated by the interaction between the microwave and the Fe resulting in an increase in the hydrophobic character of Fe surface. During the degradation of 4-NP in Fe/EDTA/MW system, the optimum value for MW power, Fe, EDTA dosage was 400 W, 2 g and 0.4 mM, respectively. The possible pathway for degrading the 4-NP was proposed based on GC/MS and HPLC analysis of the degradation intermediates. The concentration change course of the main bio-refractory by-products, the aminophenol formed in the degradation of 4-NP suggested a more efficient degradation and mineralization in Fe/EDTA/MW system. Finally, BOD{sub 5}/COD{sub Cr} of the solution increased from 0.237 to 0.635 after reaction for 18 min, indicating that the biodegradability of wastewater was greatly improved by Fe/EDTA/MW system and would benefit to further treatment by biochemical methods.
Liu Bo, E-mail: yongboliu@163.com;
[1]
Li Song, E-mail: ls8214@163.com;
[1]
Zhao Yongjun, E-mail: zyjun2007@126.com;
[2]
Wu Wenfei, E-mail: feibanana6@163.com;
[1]
Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn;
[2]
Gu Xueyuan, E-mail: xygu@nju.edu.cn;
[1]
Li Ruihua, E-mail: liruihua@nju.edu.cn;
[1]
Yang Shaogui, E-mail: ysg420@sina.com
[1]
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093 (China)
- State Key Laboratory of Pollution Control and Resource Reuse, School of Life Science, Nanjing University, Nanjing 210093 (China)
Citation Formats
Liu Bo, E-mail: yongboliu@163.com, Li Song, E-mail: ls8214@163.com, Zhao Yongjun, E-mail: zyjun2007@126.com, Wu Wenfei, E-mail: feibanana6@163.com, Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn, Gu Xueyuan, E-mail: xygu@nju.edu.cn, Li Ruihua, E-mail: liruihua@nju.edu.cn, and Yang Shaogui, E-mail: ysg420@sina.com.
Enhanced degradation of 4-nitrophenol by microwave assisted Fe/EDTA process.
Netherlands: N. p.,
2010.
Web.
doi:10.1016/J.JHAZMAT.2009.11.015.
Liu Bo, E-mail: yongboliu@163.com, Li Song, E-mail: ls8214@163.com, Zhao Yongjun, E-mail: zyjun2007@126.com, Wu Wenfei, E-mail: feibanana6@163.com, Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn, Gu Xueyuan, E-mail: xygu@nju.edu.cn, Li Ruihua, E-mail: liruihua@nju.edu.cn, & Yang Shaogui, E-mail: ysg420@sina.com.
Enhanced degradation of 4-nitrophenol by microwave assisted Fe/EDTA process.
Netherlands.
https://doi.org/10.1016/J.JHAZMAT.2009.11.015
Liu Bo, E-mail: yongboliu@163.com, Li Song, E-mail: ls8214@163.com, Zhao Yongjun, E-mail: zyjun2007@126.com, Wu Wenfei, E-mail: feibanana6@163.com, Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn, Gu Xueyuan, E-mail: xygu@nju.edu.cn, Li Ruihua, E-mail: liruihua@nju.edu.cn, and Yang Shaogui, E-mail: ysg420@sina.com.
2010.
"Enhanced degradation of 4-nitrophenol by microwave assisted Fe/EDTA process."
Netherlands.
https://doi.org/10.1016/J.JHAZMAT.2009.11.015.
@misc{etde_22049753,
title = {Enhanced degradation of 4-nitrophenol by microwave assisted Fe/EDTA process}
author = {Liu Bo, E-mail: yongboliu@163.com, Li Song, E-mail: ls8214@163.com, Zhao Yongjun, E-mail: zyjun2007@126.com, Wu Wenfei, E-mail: feibanana6@163.com, Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn, Gu Xueyuan, E-mail: xygu@nju.edu.cn, Li Ruihua, E-mail: liruihua@nju.edu.cn, and Yang Shaogui, E-mail: ysg420@sina.com}
abstractNote = {A microwave assisted zero-valent iron oxidation process was studied in order to investigate the synergetic effects of MW irradiation on Fe/EDTA system (Fe/EDTA/MW) treated 4-nitrophenol (4-NP) from aqueous solution. The results indicated that the thermal effect of microwave improved the removal effect of 4-NP and TOC through raising the temperature of the system, as well as the non-thermal effect generated by the interaction between the microwave and the Fe resulting in an increase in the hydrophobic character of Fe surface. During the degradation of 4-NP in Fe/EDTA/MW system, the optimum value for MW power, Fe, EDTA dosage was 400 W, 2 g and 0.4 mM, respectively. The possible pathway for degrading the 4-NP was proposed based on GC/MS and HPLC analysis of the degradation intermediates. The concentration change course of the main bio-refractory by-products, the aminophenol formed in the degradation of 4-NP suggested a more efficient degradation and mineralization in Fe/EDTA/MW system. Finally, BOD{sub 5}/COD{sub Cr} of the solution increased from 0.237 to 0.635 after reaction for 18 min, indicating that the biodegradability of wastewater was greatly improved by Fe/EDTA/MW system and would benefit to further treatment by biochemical methods.}
doi = {10.1016/J.JHAZMAT.2009.11.015}
journal = []
issue = {1-3}
volume = {176}
journal type = {AC}
place = {Netherlands}
year = {2010}
month = {Apr}
}
title = {Enhanced degradation of 4-nitrophenol by microwave assisted Fe/EDTA process}
author = {Liu Bo, E-mail: yongboliu@163.com, Li Song, E-mail: ls8214@163.com, Zhao Yongjun, E-mail: zyjun2007@126.com, Wu Wenfei, E-mail: feibanana6@163.com, Zhang Xuxiang, E-mail: zhangxx@nju.edu.cn, Gu Xueyuan, E-mail: xygu@nju.edu.cn, Li Ruihua, E-mail: liruihua@nju.edu.cn, and Yang Shaogui, E-mail: ysg420@sina.com}
abstractNote = {A microwave assisted zero-valent iron oxidation process was studied in order to investigate the synergetic effects of MW irradiation on Fe/EDTA system (Fe/EDTA/MW) treated 4-nitrophenol (4-NP) from aqueous solution. The results indicated that the thermal effect of microwave improved the removal effect of 4-NP and TOC through raising the temperature of the system, as well as the non-thermal effect generated by the interaction between the microwave and the Fe resulting in an increase in the hydrophobic character of Fe surface. During the degradation of 4-NP in Fe/EDTA/MW system, the optimum value for MW power, Fe, EDTA dosage was 400 W, 2 g and 0.4 mM, respectively. The possible pathway for degrading the 4-NP was proposed based on GC/MS and HPLC analysis of the degradation intermediates. The concentration change course of the main bio-refractory by-products, the aminophenol formed in the degradation of 4-NP suggested a more efficient degradation and mineralization in Fe/EDTA/MW system. Finally, BOD{sub 5}/COD{sub Cr} of the solution increased from 0.237 to 0.635 after reaction for 18 min, indicating that the biodegradability of wastewater was greatly improved by Fe/EDTA/MW system and would benefit to further treatment by biochemical methods.}
doi = {10.1016/J.JHAZMAT.2009.11.015}
journal = []
issue = {1-3}
volume = {176}
journal type = {AC}
place = {Netherlands}
year = {2010}
month = {Apr}
}