ZHAO Deming,ZHANG Tan,ZHANG Jianting,XU Xinhua" />
• 能源和环境工程 • Previous Articles Next Articles
ZHAO Deming,ZHANG Tan,ZHANG Jianting,XU Xinhua
Online:
Published:
赵德明,张谭,张建庭,徐新华
Abstract:
The degradation of phenol in aqueous solution by microwave-assisted chlorine dioxide(MW/ClO2)oxidation was studied with laboratory-scale experiments. The affecting factors such as initial ClO2 concentration,MW power,pH value,initial phenol concentration and reaction temperature,and reaction kinetics were investigated. For all oxidation processes by alone MW radiation or ClO2 oxidation as well as combined MW/ClO2,phenol degradation followed pseudo-first-order kinetics. The overall reaction rates were significantly enhanced in the combined MW/ClO2 system,mainly because microwave could accelerate chlorine dioxide to generate chlorine radical(·Cl)and other reactive oxygen intermediates. The observed synergetic effects in MW/ClO2 process resulted in an increased in the net reaction rate by a factor of 1.4. The results also showed that the effect of initial ClO2 concentration,MW power,pH value and initial phenol concentration on reaction rate is significant, 摘要: 采用微波辅助二氧化氯(MW/ClO2)氧化降解苯酚模拟水溶液,研究了影响该系统氧化降解苯酚的各种因素和动力学。结果表明:在单独的微波辐照或者ClO2氧化工艺和MW/ClO2强化氧化系统中苯酚的降解均符合拟一级动力学关系,其中MW/ClO2氧化系统速率常数增强因子可达到1.4,表明存在较明显的协同效应。在MW/ClO2强化氧化系统降解苯酚初始体积质量浓度为100 mg·L-1,pH值为5.0,微波功率200 W,二氧化氯初始浓度100 mg·L-1
摘要:
采用微波辅助二氧化氯(MW/ClO2)氧化降解苯酚模拟水溶液,研究了影响该系统氧化降解苯酚的各种因素和动力学。结果表明:在单独的微波辐照或者ClO2氧化工艺和MW/ClO2强化氧化系统中苯酚的降解均符合拟一级动力学关系,其中MW/ClO2氧化系统速率常数增强因子可达到1.4,表明存在较明显的协同效应。在MW/ClO2强化氧化系统降解苯酚初始体积质量浓度为100 mg·L-1,pH值为5.0,微波功率200 W,二氧化氯初始浓度100 mg·L-1
ZHAO Deming,ZHANG Tan,ZHANG Jianting,XU Xinhua. Degradation of phenol in water by microwave-assisted chlorine dioxide oxidation[J]. .
赵德明,张谭,张建庭,徐新华. 微波辅助二氧化氯氧化降解苯酚 [J]. CIESC Journal.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: https://hgxb.cip.com.cn/EN/
https://hgxb.cip.com.cn/EN/Y2011/V62/I7/2020