有机物改性麦糟动态吸附水中五价砷的试验研究  

Experimental Study on Dynamic Adsorption of Arsenic Pentavalent in Water by Organic Modified Spent Grains

作　　者：刘春花 Liu Chunhua(Ganzhou Gerui Engineering Consulting Co.,Ltd.,Ganzhou 341000,China)

机构地区：[1]赣州格瑞工程咨询有限公司,江西赣州341000

出　　处：《广东化工》2023年第6期133-136,共4页Guangdong Chemical Industry

摘　　要：随着各国工业化进程的不断加快,全球范围内砷污染成为一个突出的环境问题。本文采用有机物改性麦糟动态吸附处理水中五价砷。通过改变进水流速和砷离子初始浓度来评价动态吸附的性能。随着流速和初始浓度的增加,动态吸附柱穿透时间提前。分别采用Thomas、Adams-Bohart和Yoon-Nelson模型来分析动态吸附过程。从结果可以看出,实验数据和理论数据的趋势具有强而显著的相关性。With the rapid development of industrialization,arsenic pollution has become a prominent environmental problem in the world.The adsorption of arsenate was conducted in a continuous fixed-bed column by using organic modified spent grains(OMSGs).The column performances were evaluated by varying the influent flow rate and arsenic ions initial concentration.The increased flow rate and initial concentration caused the column exhaustion time to occur earlier.The experimental column data were also expressed in column adsorption models,namely,the Thomas,Adams–Bohart and Yoon-Nelson models.It can be seen from the results that there is a strong and significant correlation between the trends of experimental data and theoretical data.

关 键 词：砷吸附 吸附柱 有机物改性麦糟 动态模型 

分 类 号：TQ[化学工程]