摘要：

LAS是一类广泛使用的阴离子表面活性剂，具有一定的毒性，且不易降解。文章以CuO/活性炭(AC)为催化剂，H₂O₂为氧化剂催化氧化降解LAS。结果表明：在H₂O₂浓度为4.9mmol/L，温度=70℃，pH在5-6，反应时间为2.5h的条件下，LAS降解率67.7%，COD去除率54.1%。

关键词: 十二烷基苯磺酸钠(LAS), CuO/活性炭, 催化氧化

Abstract:

Linear alkylbenzene sulfonate(LAS)is a kind of widely used anionic surfactant.It is toxic, and difficult to be degraded.CuO/activated carbon is used as surfactant and H₂O₂ as oxidizing agent for the catalytic oxidation of LAS degradation.The results show that LAS degradation rate could reach 67.7% and the COD removal rate could reach 54.1% under optimum conditions: the concentration of hydrogen peroxide is 4.9 mmol/L, water temperature is 70 ℃, pH is between 5 to 6, and reaction time is 2.5 h.

Key words: linear alkylbenzene sulfonate(LAS), CuO/activated carbon, catalytic oxidation

中图分类号: 

• TQ032.4

• X703.1