煅烧改性赤泥活化NaHSO_(3)降解盐酸洛美沙星

Degradation of lomefloxacin hydrochloride by NaHSO_(3) activated with modified red mud

本文以氧化铝生产过程中产生的工业固体废弃物赤泥(RM)为原料,采用简单煅烧法制备的改性赤泥(RM-700)用于活化亚硫酸氢钠(NaHSO_(3))降解盐酸洛美沙星(LOM-HCl)。考察了RM-700催化剂投加量、NaHSO_(3)投加量、溶液初始pH值及无机阴离子对LOM-HCl降解效果的影响。实验结果表明,在RM-700投加量为0.5 g/L,NaHSO_(3)投加量为0.9 g/L,溶液初始pH值为5,无阴离子添加的条件下,RM-700对LOM-HCl具有良好的降解效果,30 min时可降解91%的LOM-HCl。

Red mud(RM),as raw materials,generated in the Bayer process of alumina production to make the modified RM(RM-700)by the simple calcination method.RM-700 was used to activate sodium bisulfite(NaHSO_(3))for degradation lomefloxacin hydrochloride(LOM-HCl).The effect of dosage of RM-700,NaHSO_(3) concentration,initial solution pH and inorganic ions were considered for degradation LOM-HCl,respectively.The experiments results showed that about 91%of LOM-HCl was degraded at 30 min as the follow conditions:[MRM-700]=0.9 g/L,[NaHSO_(3)]=0.5 g/L and initial pH of 5(unadjusted).