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TiO2/SiO2复合膜光催化降解DDNP废水试验研究
引用本文:贾维肖,李辽沙.TiO2/SiO2复合膜光催化降解DDNP废水试验研究[J].金属矿山,2009,39(4):139-142.
作者姓名:贾维肖  李辽沙
作者单位:1.安徽工业大学;2.安徽省冶金工程与资源综合利用重点实验室
基金项目:国家高技术研究发展计划(863计划),安徽省科技平台项目 
摘    要:采用液相沉积法在煤矸石烧结滤料表面制备了TiO2/SiO2 复合膜,研究了TiO2/SiO2 复合膜对淮南某化工厂DDNP废水的光催化降解效果。试验结果表明:在将废水稀释20倍(CODCr为318 mg/L,色度为3 750倍),使废水初始pH为3,投加占废水体积0.9%的双氧水,以及光照的同时辅之以曝气条件下,用TiO2/SiO2复合膜对废水光催化降解1 h,废水脱色率和CODCr下降率分别达到75.54%和61.51%,效果比较理想。

关 键 词:TiO2/SiO2  复合膜  DDNP废水  光催化降解  

Experimental Study on the Photocatalytic Degradation of DDNP Waste Water by TiO2/SiO2 Composite Film
Jia Weixiao,Li Liaosha.Experimental Study on the Photocatalytic Degradation of DDNP Waste Water by TiO2/SiO2 Composite Film[J].Metal Mine,2009,39(4):139-142.
Authors:Jia Weixiao  Li Liaosha
Affiliation:1.Anhui University of Technology;2.Anhui Provincial Key Laboratory of Metallurgy Engineering  &  Resources Recycling
Abstract:TiO2/SiO2 composite film made by liquid deposition on the surface of coal fuse sintered filter material was used to study its photocatalytic degradation effect for DNNP waste water from a Huannan chemical plant.The test result achieved a decoloration rate and CODCr decrease of 75.54% and 61.51% respectively at one hour degradation with TiO2/SiO2 composite film with also lighting and aeration, where the waste water (CODCr, 318 mg/L and chroma, 3 750 times) was first diluted by 20 times to gain an initial pH of 3, into which oxydol was added at a dosage that was 0.9% of the waste water volume.The result was ideal.
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