改性石墨毡电极对浓差电池协同处理电镀污泥和盐酸酸洗废液效果的影响探究  

Study on the effect of modified graphite felt electrodes on concentration difference cells collaborative treatment of electroplating sludge and hydrochloric acid pickling waste solution

作　　者：朱佳天 沈博文 赖夏鹏 孙盼 胡勤海[1] ZHU Jiatian;SHEN Bowen;LAI Xiapeng;SUN Pan;HU Qinhai(College of Environmental&Resource Sciences,Institute of Environmental and Ecology,Zhejiang University,Hangzhou Zhejiang 310000)

机构地区：[1]浙江大学环境与资源学院,环境生态研究所,浙江杭州310000

出　　处：《环境污染与防治》2022年第3期307-311,共5页Environmental Pollution & Control

基　　金：浙江省科技厅重点研发计划项目(No.2019C03107)。

摘　　要：采用单纯加热处理、单纯丙酮浸泡处理以及加热+丙酮浸泡全处理等3种方式对石墨毡电极进行改性。利用X射线光电子能谱(XPS)、透射电子显微镜(TEM)对改性前后的石墨毡电极进行表征分析,并构建相应浓差电池协同处理电镀污泥和盐酸酸洗废液,考察浓差电池电化学性能及重金属去除能力。结果表明,加热+丙酮浸泡全处理相比单一处理,改性石墨毡电极表面更光滑,电极纤维排列整齐度更高,电极表面的O/C更低,表面附着污染物更少;其构建的浓差电池重金属综合去除率更高,可达57.12%,电池最大功率密度可达10.13 W/m^(2)。Graphite felt electrodes were modified by three ways,such as heating treatment,acetone soaking and fully treatment of heating+acetone soaking.X-ray photoelectron spectroscopy(XPS)and transmission electron microscopy(TEM)were used to characterize and analyze the electrodes before and after modification.The electrochemistry performance and heavy metal removal ability of the concentration difference cells were investigated by constructing the corresponding concentration difference cells to co-treat electroplating sludge and hydrochloric acid pickling waste solution.The results showed that the surface of the fully treated electrode by heating+acetone soaking was smooter than that of the single treated electrodes,and the fibers were more uniform,the O/C ratio of the electrode surface was lower,the surface attached pollutants were less,the comprehensive heavy metals removal rate of related concentration difference cell was the highest(57.12%),and the maximum power density could reach 10.13 W/m^(2).

关 键 词：改性石墨毡电极 电镀污泥 盐酸酸洗废液 浓差电池 重金属去除率 资源化 

分 类 号：X781.1[环境科学与工程—环境工程]