复合活性炭三维粒子电极处理造纸废水  

Treatment of Papermaking Wastewater by Particle Composite Electrode of Active Carbon

作　　者：肖林平 刘宁 梁勇 周丽萍 柯燕 XIAO Lin-ping;LIU Ning;LIANG Yong;ZHOU Li-ping;KE Yan(Guangdong Engineering and Technology Research Center of Online Monitoring for Water Environmental Pollution,Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology,Guangdong Institute of Analysis,Guangdong Academy of Sciences,Guangdong Guangzhou 510070,China)

机构地区：[1]广东省科学院测试分析研究所(中国广州分析测试中心),广东省化学测量与应急检测技术重点实验室,广东省水环境污染在线监测工程技术研究中心,广东广州510070

出　　处：《广州化工》2023年第1期221-223,共3页GuangZhou Chemical Industry

摘　　要：采用活性炭为载体,加入Fe_(2)O_(3)、Al_(2)O_(3)等多金属化合物和SiO_(2),制备出新型复合活性炭粒子电极。该电极与石墨组成三维电极处理系统,对造纸废水进行电催化氧化处理。结果显示,当pH值为3.5,电解电压48 V、反应时间60 min,对某厂化学需氧量(COD)高达15188 mg/L的造纸废水有80%的降解率。对于废水可生化性有很好的提升。该电极具有良好的稳定性。连续使用5次,降解率仍然保持在79%。本文考察了多金属化合物和SiO_(2)对粒子电极的影响。结果表明多金属化合物具有催化作用,SiO_(2)为稳定剂。同时本文采用三维荧光分析技术代替传统方法(高效液相、比色法)检测COD,光谱强度与COD浓度有良好的线性关系。该方法具有简便、快速和无需引入其它化学试剂等优点。A novel particle electrode that consisted with active carbon,metal compounds and SiO_(2)was prepared.This electrode was combined with graphite electrodes to form a three dimensional electrode system for the treatment of papermaking wastewater.The results showed under pH 3.5,48 V,reaction time of 60 min,COD removal efficiency reached 80.9%even the initial COD concentration was as high as 15188 mg/L.The efficiency still had 78.6%even after 5 recycles.The effects of metal compounds and SiO_(2)were investigated,metal compounds acted as the catalyst and SiO_(2)as stabilizer.Colorimetry was replaced by three-dimensional fluorescence spectroscopy to evaluate COD removal efficiency with advantages,such as simple,fast and without introduce of other chemical reagents.There was also a good relationship between fluorescence intensity and the concentration of COD.

关 键 词：复合活性炭粒子电极 三维荧光 三维电极 废水 

分 类 号：X793[环境科学与工程—环境工程]