摘要
过氧化氢异丙苯(CHP)作为一种典型的有机过氧化物,其废水会抑制生化系统活性,在实际处理中存在技术困难。本研究通过水热-浸渍法在球形分子筛表面负载Fe/HKUST-1,将其作为前驱体在350℃下碳化制备Fe/HKUST-1衍生碳@分子筛催化剂(FeCu-C@MS)。利用SEM、EDS、XRD等技术对催化剂进行表征,考察臭氧浓度、催化剂投加量、pH、初始CHP浓度等对FeCu-C@MS/O_(3)体系降解CHP的影响。结果表明:FeCu-C@MS/O_(3)体系在臭氧浓度为20 mg/L、催化剂投加量为50 g/L、pH为7、CHP初始浓度为12 mg/L的条件下,经过120 min反应CHP去除率可以达到65.47%,比O_(3)体系提高35.80%;经过5次循环使用后,CHP去除率仍可达到55.19%,表明FeCu-C@MS可以高效催化臭氧氧化降解过氧化氢异丙苯,且具有较好的稳定性和可重复利用性。
As a typical organic peroxide,cumene hydroperoxide(CHP)can inhibit the activity of sewage biochemical treatment system,and showed several technical difficulties in its practical treatment.Herein,Fe/HKUST-1 derived carbon@molecular sieve catalyst(FeCu-C@MS)was prepared by hydrothermal-impregnation method.Fe/HKUST-1 was loaded on the surface of spherical molecular sieve to form a precursor,which was then carbonized at 350℃.The catalysts were characterized by SEM,EDS and XRD.The effects of ozone concentration,catalyst dosage,pH and initial CHP concentration on the degradation of CHP in FeCu-C@MS/O_(3) system were investigated.The results showed that,when ozone concentration was 20 mg/L,catalyst dosage was 50 g/L,pH was 7 and initial concentration of CHP was 12 mg/L in FeCu-C@MS/O_(3) system,the CHP removal efficiency could reach 65.47%within 120 min,which was 35.80% higher than that in O3 system.After five runs,the CHP removal efficiency still reached 55.19%,indicating that FeCu-C@MS could efficiently catalyze ozone to degrade CHP with outstanding stability and reusability.
作者
陈云峰
刘东方
陈茜
龙宇涵
王常艳
吴蔚然
CHEN Yunfeng;LIU Dongfang;CHEN Xi;LONG Yuhan;WANG Changyan;WU Weiran(School of Environmental Science and Engineering,Nankai University,Tianjin 300350,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2024年第2期57-61,共5页
Technology of Water Treatment
基金
沧州渤海新区制药与化工行业高盐有机废水处理与零排放研究与应用(NCC2020FH11)。
