摘要
采用微波加热技术分别结合酸、碱、盐对沸石进行活化改性处理,研究了微波功率、微波辐射时间、酸、碱、盐浓度对改性沸石去除地下水中Fe2+效果的影响。结果表明:NaOH改性沸石去除水中Fe2+的效果优于NaCl改性沸石和HCl改性沸石,在微波功率为640W、微波辐射时间为5min、NaOH浓度为0.8mol·L-1时,NaOH改性沸石对Fe2+的去除率可达96.88%。
Zeolite was modified by acid, alkali or salt combining with microwave heating technique and the effects of microwave power, microwave irradiation time, concentration of acid, alkali and salt on the ability of modified zeolite to removing ferrous ion from groundwater were investigated. The results showed that the ferrous ion removal efficiency of sodium hydroxide modified zeolite was better than that of hydrochloric acid modified zeolite or sodium chloride modified zeolite. Under the optimum conditions as follows：microwave power of 640 W, microwave irradiation time of 5 min,sodium hydroxide concentration of 0.8 mol· L^-1 ,ferrous ion removal rate reached 96.88% for sodium hydroxide modified zeolite.
出处
《化学与生物工程》
CAS
2013年第9期65-67,共3页
Chemistry & Bioengineering
关键词
微波
改性沸石
Fe^2＋
microwave
modified zeolite
ferrous ion
