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UV/Fenton法预处理橡胶促进剂生产废水+ r" h: T8 q' G: I# w
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摘 要:采用UV/Fenton法对橡胶促进剂废水进行预处理。当原水COD约为3000mg/L时,COD去除率可达65%以上,并得到最佳操作条件为:H2O2投加量为8mL/L,Fe^2+投加量为0.8g/L,反应时间为30rain,pH=5;同时得到Fenton试剂处理该废水的最佳条件为:H2O2投加量为10mL/L,Fe^2+投加量为0.966g/L,反应时间为30min,pH=5;单独UV作用的最佳工艺条件为:反应时间为20min,pH=5;并就3种处理方法进行了比较,发现UV对Fenton试剂处理橡胶促进剂废水具有一定促进作用。反应前后的紫外光谱说明,经UV/Fenton或Fenton反应后原水中的苯胺、硝基苯等物质已得到了彻底的氧化分解。[著者文摘]: f% \+ U6 s1 k' i
% m4 E" X! A2 ^关键词:橡胶促进剂 生产废水 UV/Fenton$ S! V3 o' H! f R, ?# h
分类号: X703.1[著者标引]文献标识码:A文章编号:1008-9241(2006)12-0112-04栏目信息:治理技术0 ^: I& L; B, P0 N
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5 R, Z0 X$ }& }/ X4 e4 g1 I* CPre-treatment of rubber accelerators factory sewage by UV/Fenton processChen Guangchun, Tian Yuan, Fei Rikai, Yuan Aihua,Hu Huayu, Feng Quanl 1. Department of Environmental Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003 ; 2. Zhenjiang Zhenbang Chemical Industry Ltd. ,Zhenjiang 212006Abstract:UV/Fenton process was used as a pretreatment method to oxidize the rubber accelerators factory sewage. Experimental results show that, when the initial concentration was about 3000mg/L, under optimized conditions(Fe^2+ = 0.8 g/L,H2O2 =8 mL/L,t =30 min,pH =5),the removal rate of COD could reach above 65%. When using Fenton regent merely, the optimum of Fe^2+ , H2O2, t and pH were 0. 966 g/L, 10 mL/L,30 min and 5. While the optimum of t and pH were 20 min and 5 when using UV only,and the use of UV could increase the COD removal rate in a Fenton system. The ultraviolet spectrum of the three systems indicates that after UV/Fenton or Fenton process the aniline and nitrobenzene were disassembled completely.[著者文摘]) k- u# o) ]5 \ g
0 I" i9 ?0 k$ q# \( S8 PKey words:rubber accelerators ; factory sewage ; UV/Fento |
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