期刊
WATER ENVIRONMENT RESEARCH
卷 93, 期 8, 页码 1243-1253出版社
WILEY
DOI: 10.1002/wer.1533
关键词
electric-assisted micro-electrolysis; kinetic hypothesis; phenol degradation; synergy mechanism; ultrasound
资金
- National Key Research and Development Program [2018YFC1900203]
The research indicated that the introduction of ultrasound into the electric-assisted micro-electrolysis system can significantly improve the treatment efficiency of phenol simulated wastewater, with a synergistic effect leading to better degradation results.
In the research, the ultrasound was introduced to the electric-assisted micro-electrolysis system to improve the treatment efficiency of phenol simulated wastewater. The results showed that the phenol removal efficiency was significantly enhanced by the electric-assisted micro-electrolysis method in the presence of ultrasound, which could reach 88.61% under the initial value of pH 4, an iron dosage of 50 g/L, a mass ratio of iron/carbon of 1:1, and the initial phenol concentration of 100 mg/L. The degradation kinetics of phenol was in accordance with a second-order kinetic model. The synergistic effect of the ultrasonic and electric-assisted micro-electrolysis method was obvious with a synergistic factor at 98.02%. The degradation mechanism of phenol was that the treatment could effectively destroy the benzene ring structure of phenol in the liquid phase with ring-opening reaction and small molecules substances generated. (c) 2021 Water Environment Federation
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