摘要
研究了利用电厂粉煤灰作为非均相催化剂,催化H2O2氧化对氨基苯酚(PAP),讨论了各种因素对PAP去除率的影响。结果表明,在30℃,pH=1.5,H2O2和PAP的起始浓度分别为0.50 mol/L和0.10 mol/L,反应时间为100 m in,粉煤灰用量为6.0%,搅拌速度为1000 r/m in的条件下,粉煤灰具有良好的催化活性,能有效地催化H2O2氧化PAP,PAP的去除率可达81%左右。该法可用于预处理含PAP的工业废水。
Fly ash from power plants was used as heterogeneous catalyst in the process of oxidation of p-aminophenol （PAP） by H2O2. The effects of various parameters on the removal rate of PAP were investigated. The results showed that fly ash has a satisfactory catalytic activation, for efficiently catalyzing H2O2 for the oxidation of PAP. The highest PAP removal rate of 81% was achieved under the conditions： temperature 30 ℃ ,pH 1. 5,0.50 mol/L H2O2 ,0. 10 mol/L PAP, 100 min reaction time, 6.0% fly ash dosage,and 1000 r/min agitating speed. The method could be used to pretreat the industrial wastewater containing PAP.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2005年第12期61-64,共4页
Techniques and Equipment for Environmental Pollution Control
关键词
粉煤灰
非均相催化氧化
过氧化氢
对氨基苯酚
fly ash
heterogeneous catalytic oxidation
hydrogen peroxide
p-aminophenol
