改性 GAC 联合 H2 O2去除氨苄青霉素钠的研究

摘要

文章研究了用Fe（ NO3）3、NaOH改性的活性炭联合过氧化氢对水溶液中氨苄青霉素钠的处理效果，确定了它们的优化处理条件，并对两者的处理效果作了相应比较。在T＝30℃，pH＝3.0，青霉素初始浓度为200 mg/L条件下，投加5.0 g/L Fe（ NO3）3改性活性炭和80 mg/L H2 O2，反应120 min后，COD、TOC去除率分别可以达到88.5％和77.9％；在T＝30℃，pH＝70，青霉素200 mg/L条件下，投加8.0 g/L NaOH改性活性炭和80 mg/L H2 O2，反应120 min后，COD、TOC去除率分别可以达到85.2％和76.4％。%Fe( NO3 ) 3 and NaOH modified activated carbon were used in the experiment to catalytic hydrogen peroxide for the treatment of ampicillin sodium solution .The optimal conditions were determined and the treatment effect of the two activated car-bons was compared.Under the condition of T=30℃, pH =3.0, 5.0 g/L Fe(NO3)3 modified activated carbon and 80 mg/L H2 O2 ,90.0% COD and 77.9% TOC can be removed for 200 mg/L ampicillin sodium after 2 h reaction;under the condition of T=30℃, pH=5.0, 8.0 g/L NaOH modified activated carbon and 80 mg/L H2O2,92.5% COD and 74.6% TOC can be re-moved for 200 mg/L ampicillin sodium after 2h reaction.The stability of Fe(NO3)3 modified activated carbon was also evaluated.