TiO2/SiO2复合膜光催化降解DDNP废水试验研究

金属矿山 ›› 2009, Vol. 39 ›› Issue (04): 139-142.

TiO₂/SiO₂复合膜光催化降解DDNP废水试验研究

贾维肖^1,2，李辽沙^1,2

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

出版日期:2009-04-15 发布日期:2011-11-22
基金资助:
* 国家科技部863计划项目（编号：2007AA03Z529）；安徽省科技平台项目（编号：06094039）。

Experimental Study on the Photocatalytic Degradation of DDNP Waste Water by TiO₂/SiO₂ Composite Film

Jia Weixiao^1,2，Li Liaosha^1,2

1.Anhui University of Technology;2.Anhui Provincial Key Laboratory of Metallurgy Engineering & Resources Recycling

Online:2009-04-15 Published:2011-11-22

摘要/Abstract

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（COD_Cr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COD_Cr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

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 COD_Cr 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 (COD_Cr, 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.

Key words: TiO₂/SiO₂ composite film, DNNP waste water, Photocatalytic degradation

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(04): 139-142.

JIA Wei-Xiao, LI Liao-Sha. Experimental Study on the Photocatalytic Degradation of DDNP Waste Water by TiO₂/SiO₂ Composite Film[J]. Metal Mine, 2009, 39(04): 139-142.

TiO₂/SiO₂复合膜光催化降解DDNP废水试验研究

Experimental Study on the Photocatalytic Degradation of DDNP Waste Water by TiO₂/SiO₂ Composite Film

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