Fenton试剂对水中酚类物质的去除效果研究

Study on Treatment Efficiency of Phenolic Compounds by Fenton Reagent

采用Fenton试剂对苯酚、对氯酚、2 ,4 二氯酚、2 ,6 二氯酚、间甲酚、对硝基酚和邻硝基酚模拟水样进行处理 ,并考察了H2 O2 及FeSO4 浓度、pH、反应温度和反应时间对Fenton试剂降解酚类物质的影响 ,得出Fenton试剂降解酚类物质非常有效 ,当H2 O2 浓度为4mmol/L、FeSO4 浓度为 0 .5mmol/L ,在pH为 3 ,室温条件下反应 40min则Fenton试剂对试验所做 7种浓度为 50mmol/L的酚类物质的去除率均在 98%以上。为该工艺处理实际含酚废水提供了科学依据。

Phenol, p-chlorophenol, 2,4-dichlorophenol, 2,6-dichlorophenol, m-cresol, p-nitrophenol and o-nitrophenol were treated by Fenton reagent. The influence of concentration of H_2O_2 and FeSO_4, pH, temprature and time on decomposition of seven kinds of phenol were studied. When the concentration of phenol were 50mmol/L, the decomposition of phenols could reach above 98% if the reaction is under the condition of: concentration of H_2O_2, 8mmol/L; the concentration of FeSO_4, 0.5mmol/L; pH 3 and reaction time, 40min.