摘要
通过室内模拟实验,比较均相与非均相体系Fenton试剂对苯酚废水去除效果,并通过考察了pH、反应时间、催化剂投加量等因素的影响。结果表明:非均相体系对苯酚的去除率最大,均相体系次之,活性炭体系最小;在设定的pH值范围内,不同体系对苯酚的去除率随pH的增大而先升高后降低,在pH=4时去除率最大;而不同体系对苯酚的去除率随着反应时间、催化剂投加量的增加先升高后逐渐稳定。
Fenton reagent was used to degrade phenol simulated wastewater in this research. Firstly, the effects of homogeneous and heterogeneous fenton reagent and activated carbon on the phenol removal rate were made a comparison. Then the effects of solution pH, reaction time and dose of catalyst on phenol removal rate were studied when the three kinds of system were used to degrade phenol simulated wastewater. The results show that： the heterogeneous system fenton reagent have a better phenol removal rate than homogeneous system and activated carbon. The phenol removal rate firstly increased and then decreased with the increases of pH, and increases gradually with prolonging the reaction time and dose of catalyst. When the Fe - C@ CNTs pellets treated phenol wastewater for 60min, the phenol removal rate reaches the maximum in simulated wastewater of pH 4 and dose of catalyst was 15mg/L, in which the phenol removal rate is 90%.
出处
《四川环境》
2017年第2期7-11,共5页
Sichuan Environment
关键词
高级氧化技术
苯酚
FENTON试剂
均相与非均相
Advanced oxidation technologies
phenol
fenton reagent
homogeneous and heterogeneous
