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铁矿石光催化氧化法降解染料中间体废水
引用本文:李广超,王虎,屠树江,朱亦仁.铁矿石光催化氧化法降解染料中间体废水[J].精细与专用化学品,2010,18(5):21-24.
作者姓名:李广超  王虎  屠树江  朱亦仁
作者单位:徐州师范大学化学化工学院,江苏,徐州,221116
基金项目:徐州市科技计划项目(XJ08070)资助
摘    要:以铁矿石为催化剂,高压汞灯作光源,对染料中间体间氯甲苯工业废水进行光催化法降解实验研究。考察了铁矿石用量、H_2O_2用量、pH值、反应时间等因素对降解效果的影响。结果表明:铁矿石/UV/H_2O_2体系能有效快速地降低废水中的COD_(Cr),并得出了最佳降解条件:铁矿石用量为2.00g·L~(-1)、30%的H_2O_2用量φ(H_2O)=0.8%、pH=3.0,经紫外光光照6h后,废水的COD_(Cr)从2292mg·L~(-1)降到599mg·L~(-1),去除率达到73.87%。

关 键 词:光催化降解  铁矿石  染料中间体废水

The treatment of dye intermediate m-chlorotoluene wastewater by iron ore photo-catalytic method
LI Guang-chao,WANG Hu,TU Shu-jiang,ZHU Yi-ren.The treatment of dye intermediate m-chlorotoluene wastewater by iron ore photo-catalytic method[J].Fine and Specialty Chemicals,2010,18(5):21-24.
Authors:LI Guang-chao  WANG Hu  TU Shu-jiang  ZHU Yi-ren
Affiliation:College of Chemistry and Chemical Engineering/a>;Xuzhou Normal University/a>;Xuzhou 221116/a>;China
Abstract:The degradation of dye intermediate m-chlorotoluene wastewater was studied by sing iron ore as photocatalyst and high-voltage mercury lamp as light source.Main factors such as the amount of the iron ore and H_2O_2、pH value and reaction time were investigated and optimum condition for degradation were obtained.The results indicated that the system of the iron ore/UV/H_2O_2 could effectively decrease COD_(Cr) in wastewater.Under the optimum condition,the amount of the iron ore was 2.00g·L~(-1)andφ(H_2O_2)=8%,pH value was 3.0 and radiation time was 6h,the COD_(Cr) of wastewater was reduced from 2292mg·L~(-1)to 599mg·L~(-1),and the removal rate of COD_(Cr) was reached up to 73.87%.
Keywords:photocatalytic degradation  iron ore  dye intermediate wastewater  
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