钛-钌电极电催化氧化焦化厂湿熄焦循环冷却水.pdfVIP

第 2 6 卷第 4 期 中国环境管理干部学院学报 Vol.26 No.4 2016 年 8 月 JOURNAL OF EMCC Aug. 2016 环境监测与污染防治 10.13358/j .issn .1008-813x .2016.04.18 钛-钌电极电催化氧化焦化厂湿熄焦循环冷却水 贾 旭 ，程晓梅，郭爱红* * (华北理工大学化学工程学院，河 北 唐 山 063009) 摘 要 ：为了解决湿法熄焦中熄焦循环水达标回用的问题，以钦涂钌电极作为电极，研究利 用电解池对焦化厂熄焦循环水TOC和NH3 -N 的去除效果。结果表明当两个极板间距为1 cm ， 6个极片组成电解池，电解电压为10 V ，pH值为8 ，氯离子使其含量达到0.2 mol/L ，电解时间 2 h 时，废水中TOC指标的去除率为40%，NH3 -N 去除率达到95%，满 足 《炼焦化学工业污染 物排放标准》 中循环水对NH3 -N 的要求，表明电解法降解熄焦循环水中NH3 -N 的效果良好。 经过电解2 h 以后，污水颜色基本接近透明。 关键词：钦钌电极；催化氧化；熄焦循环水；去除率 中图分类号：X 703 文献标识码：A 文章编号：1008-813X (2016)04-0069-05 Research on Ti-RuO2 Electrode Electrocatalyzing and Oxidizing The Wet Coke Quenching Circulation Water of Some Coking Plant Jia Xu, Cheng Xiaomei, Guo Aihong* (North China University of Science and Technology, Tangshan Hebei 063009, China) Abstract : In order to reuse coke circulating water in the wet coke quenching process , taking T - RuO2 as electrodes , quickly degraded the TOC and NH3 -N of coke quenching wastewater . When electrodes spacing was 1 cm , 6 pieces of poles assembled into electrolytic cell . The best removal conditions were that electrolytic voltage was 10 V , pH was 8 , content of Cl- was 0.2 mol/L , and when the electrolysis time was 2.0 hours , the TOC removal ratio of coke quenching wastewater was about 40%, and NH3 -N removal ratio was 95% which satisfied the water quality requirements of reuse standard for coking chemical industry . After two hours of electrolysis , sewage was basically close to transparent color . Key word ： Ti-RuO2 electrode , catalytic oxidation , coke quenching circulation water , removal ratio 在焦化厂中，由湿法熄焦过程产生的废水含