超声波辅助纳米铁-牡蛎壳材料处理As(Ⅲ)废水的研究  

Study on As(Ⅲ) Wastewater Treatment by Ultrasonic Assisted Nano Iron/Oyster Shell Material

作　　者：周华[1] 张晓华[1] 熊丽凤 卢泽湘[2] 海热提[3] 范立维[1] 

机构地区：[1]福建农林大学资源与环境学院,福建福州350002 [2]福建农林大学材料工程学院,福建福州350002 [3]北京化工大学化学工程学院,北京100029

出　　处：《水处理技术》2017年第9期47-51,共5页Technology of Water Treatment

基　　金：福建省自然科学基金资助项目(2014J011430);福建农林大学校重点项目(06085C07F)

摘　　要：以模拟As(Ⅲ)废水为处理对象,利用超声波辅助纳米铁(NI)-牡蛎壳(OS)复合材料处理废水中的As(Ⅲ),探讨了NI-OS复合材料在超声波辅助条件下对水中As(Ⅲ)的去除效果,考察了超声时间和功率、复合材料投加量、溶液温度、pH和As(Ⅲ)初始含量等因素对砷模拟废水去除效果影响。结果表明,在超声波辅助条件下,NI-OS对As(Ⅲ)去除效果得到显著提升。当NI-OS投加量大于0.3 g/L,超声功率和时间分别为200 W和60 min,溶液pH和As(Ⅲ)的质量浓度分别为7和10 mg/L时,溶液中As(Ⅲ)的去除率基本达到100%。To simulate the As （m） wastewater as treatment object, ultrasonic assisted nano iron/oyster shells composite material was used to treat As tin） of wastewater, and the As （Ⅲ） removal efficiency was discussed, the effect of ultrasonic time, power, composite material dosage, solution temperature, pH and As initial content on removal efficiency of simulated As wastewater was researched in this paper. The results showed that the removal efficiency of As （Ⅲ） by Nt-OS was significantly improved under ultrasonic assisted condition. With the NI-OS dosage was greater than 0.3 g/L, ultrasonic power was 200 W, reaction time was 60 rain, pH-was 7 and initial mass concentration of As （Ⅲ） of the solution was 7, the removal rate of As（Ⅲ） could reach 100%.

关 键 词：超声波辅助 纳米铁-牡蛎壳 复合材料 As(Ⅲ)模拟废水 

分 类 号：X703.1[环境科学与工程—环境工程]