超声波辅助法制备纳米FeS及处理酸性含铬废水试验  

Preparation of nano FeS by ultrasonic assisted method and treatment of acid chromium containing wastewater

作　　者：狄军贞[1] 赵文琦 杨建国 吕雅欣 杨逾[1] 孟凡康 王显军 李增新 郭建志 姜国亮 曹洋 Di Junzhen;Zhao Wenqi;Yang Jianguo;LüYaxin;Yang Yu;Meng Fankang;Wang Xianjun;Li Zengxin;Guo Jianzhi;Jiang Guoliang;Cao Yang(School of Civil Engineering,Liaoning Technical University,Fuxin 123000,China;Anhui Shui’an Construction Group Co.,Ltd.,Hefei 230601,China;Fuxin Ping’an Mining Co.,Ltd.,Fuxin 123000,China)

机构地区：[1]辽宁工程技术大学土木工程学院,辽宁阜新123000 [2]安徽水安建设集团股份有限公司,安徽合肥230601 [3]阜新市平安矿业有限公司,辽宁阜新123000

出　　处：《工业水处理》2021年第2期48-51,共4页Industrial Water Treatment

基　　金：国家自然科学基金项目(41672247,41102157);辽宁省“兴辽英才”青年拔尖人才计划项目(XLYC1807159);省级大学生创新创业训练计划项目(201810147208)。

摘　　要：针对含铬废水毒性大、处理难的问题,基于正交和单因素试验,研究了超声波辅助法制备的纳米FeS对废水中铬的去除效果,并探讨了纳米FeS去除铬的机理。结果表明,纳米FeS的最佳制备条件:以(NH4)2Fe(SO4)2·6H2O作铁源,铁源溶液滴加流速为0.44 mL/s,n(Fe)/n(S)为3.0。以此条件下制备的纳米FeS处理含铬废水,Cr(Ⅵ)和总铬去除率分别可达81.65%、69.5%。SEM和XRD分析表明,处理含铬废水后,纳米FeS颗粒表面出现大块球形晶体结构的Cr(OH)3和Cr2S3。Aiming at the problems of high toxicity and difficult treatment of chromium containing wastewater,based on orthogonal and single factor experiments,the removal effect of chromium in wastewater by nano FeS prepared by ultrasonic assisted method was studied,and the mechanism of chromium removal by nano FeS was discussed.The results showed that the optimum preparation conditions of nano FeS were as follows:using(NH4)2Fe(SO4)2·6H2O as iron source,the dropping flow rate of iron source solution 0.44 mL/s,n(Fe)/n(S)=3.0.Under these preparation conditions,the removal rates of Cr(Ⅵ)and total chromium in wastewater by nano FeS could reach 81.65%and 69.5%respectively.SEM and XRD analysis showed that Cr(OH)3 and Cr2S3 with large spherical crystal structure appeared on the surface of nano FeS particles after treatment of wastewater containing chromium.

关 键 词：纳米FeS 超声波辅助法 酸性含铬废水 

分 类 号：X703[环境科学与工程—环境工程]