改性活性炭纤维对甲基橙厌氧降解的促进作用  

Anaerobic degradation of methyl orange promoted by modified activated carbon fiber

作　　者：朱其龙[1] 孙康 房聪[1] 姜鑫 彭杰 黄天寅[1] ZHU Qilong;SUN Kang;FANG Cong;JIANG Xin;PENG Jie;HUANG Tianyin(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院

出　　处：《排灌机械工程学报》2019年第11期993-997,共5页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家自然科学基金资助项目(51478283);江苏省普通高校专业学位研究生科研创新计划项目(SJLX16-0561)

摘　　要：采用硝酸(HNO3)和过氧化氢(H2O2)对活性炭纤维(ACF)进行改性ACF(ACF mod),ACFmod的比表面积和平均孔容均有下降,但其平均孔径增大,且表面醌基含量多于ACF;在硫化钠(Na 2S)还原降解甲基橙体系中,加入炭质材料加速了甲基橙降解,并且促进效果最好的是ACFmod;在厌氧污泥降解甲基橙体系中,投加炭质材料加速了甲基橙生物降解,且ACFmod的降解效果好于ACF的;通过运行UASB反应器发现,投加ACFmod对甲基橙的脱色率及对COD的去除率均高于未投加的反应器,甲基橙脱色率大于90%,COD去除率大于79%,说明ACFmod对上流式厌氧污泥床反应器(UASB)系统降解甲基橙有促进作用.Activated carbon fibers(ACF)were prepared by using nitric acid and hydrogen peroxide to obtain modified ACF,i.e.ACF mod,then the surface area and surface functional groups of the ACF mod were characterized.The results show that the specific surface area and average pore volume of the ACF mod are decreased,but the average pore size is increased,and the surface quinone content is more than the ACF.In the sodium sulfide(Na 2S)reductive degradation of methyl orange system,the added carbon materials accelerate the degradation of methyl orange,and ACF mod has the best promoting effect.In the anaerobic sludge degradation system,the carbon materials added accelerate biodegradation of methyl orange,further ACF mod is more favorable than ACF.By operating the UASB reaction system,the methyl orange removal and COD removal rates with ACF mod are higher than those without ACF mod,especially,the decolorization rate of methyl orange and COD removal rate are greater than 90%and 79%,respectively.This fact suggests that ACF mod has a favorable effect on degradation of methyl orange in the UASB system.

关 键 词：改性活性炭纤维 氧化还原介质 厌氧脱色 甲基橙 醌基 

分 类 号：X703[环境科学与工程—环境工程]