加铁煤气化细渣活性炭高效处理含酚废水  

High-efficient treatment of phenol-containing wastewater with iron-loaded fine coal gasification slag activated carbon

作　　者：高宇豪 段永蓉 李鸿 王建军[1] 魏迎春[1] 李强[3] 亢福仁[3] 任立庆[1,3] GAO Yuhao;DUAN Yongrong;LI Hong;WANG Jianjun;WEI Yingchun;LI Qiang;KANG Furen;REN Liqing(School of Energy Engineering,Yulin University,Yulin 719000,China;School of Energy Science and Engineering,Nanjing University of Technology,Nanjing 210000,China;School of Life Sciences,Yulin University,Yulin 719000,China)

机构地区：[1]榆林学院能源工程学院,陕西榆林719000 [2]南京工业大学能源科学与工程学院,江苏南京210000 [3]榆林学院生命科学学院,陕西榆林719000

出　　处：《工业水处理》2024年第7期119-124,共6页Industrial Water Treatment

基　　金：陕西省科技资源共享平台项目(2023-CX-PT-16);陕西省技术创新引导专项(2021QFY04-03);陕西省青年创新团队项目(23JP202)。

摘　　要：以价格低廉、亟需大规模高值应用的煤气化细渣为载体,采用浸渍-煅烧法制备负载铁的煤气化细渣活性炭(Fe/MAC)催化剂,并以未加铁的煤气化细渣活性炭(MAC)为对照,对模拟苯酚废水进行处理实验研究。用扫描电镜(SEM)、比表面积及微孔分析仪(BET)、X射线光电子能谱仪(XPS)对催化剂进行表征,并系统研究了不同反应时间、反应温度以及催化剂投加量对苯酚去除率的影响。结果表明,通过浸渍-煅烧法将铁成功负载到了MAC上,基于Fe/MAC/H_(2)O_(2)非均相Fenton体系去除苯酚最佳条件为Fe/MAC催化剂投加量为0.35 g、反应时长为5 h、温度为70℃。该研究结果为缓解传统Fenton法中铁对废水的二次污染和催化剂分离难的问题提供了新思路,拓展了煤气化细渣的高值应用,为苯酚废水的高效处理提供了新途径。Iron-loaded coal gasification fine residue activated carbon(Fe/MAC)catalysts were prepared by the impregnationcalcination method using inexpensive coal gasification fine residue(CGF)as a carrier.The removal of simulated phenol from wastewater was experimentally investigated by activated carbon(Fe/MAC)catalysts with Fe-unloaded CGF activated carbon(MAC)as control.The catalysts were characterized by scanning electron microscopy(SEM),specific surface area and micropore analyzer(BET)and X-ray photoelectron spectroscopy(XPS).The effects of reaction times,reaction tem⁃peratures and catalyst dosages on phenol removal rate were systematically studied.The results showed that the iron was successfully loaded onto MAC by impregnation-calcination method,and the optimal conditions for phenol removal in the heterogeneous Fenton system based on Fe/MAC/H_(2)O_(2) were 0.35 g of Fe/MAC catalyst dosage,5 h of reaction time and 70℃.The results of this study provide a new idea for alleviating the secondary pollution of wastewater and catalyst separation of iron in the traditional Fenton method,expande the high-value application of coal gasification fine residue,and provide a new way for the efficient treatment of phenol wastewater.

关 键 词：煤气化细渣 催化剂载体 含酚废水 活性炭 

分 类 号：TQ536.4[化学工程—煤化学工程] X703[环境科学与工程—环境工程]