Inorganic Chemicals Industry >
Research and development of self-fitting nano-sized titanium dioxide catalytic wastewater treatment agent
Received date: 2020-02-02
Online published: 2020-05-21
The by-prodnct dilute sulfuric from the production of TiO2 by sulfuric acid was used to prepare Ti(SO4)2 solution reacted with titanian as raw material.The titanium sulfate solution was neutralized with alkaline printing and dyeing wastewater.Then the ultrafine nano-sized TiO2 powders was self-fitted and obtained.The TiO2 powders were used to catalyze,oxidize and decompose the organic material in sewage,and reduced the amount of hydrogen peroxide in the existing Fenton method by 70%.Using UV-photocatalytic oxidation,the amount of hydrogen peroxide was all replaced,the COD removal rate in sewage increased by 14.5% and reached 94.5%.The economical method of production of waste sulphuric acid from titanium dioxide for the treatment of printing and dyeing wastewater was developed,which was coupled with the redundant chemical resources and chemical energy of two related industries.Thus the goal of economicproduction of nano-sized titanium dioxide catalyst was achieved,the production cost of printing and dyeing wastewater treatment was reduced,and the effect was remarkable.
Jiazhu Gong , Xiangfang Lu , Ninglan Wu , Guoxiong Shao . Research and development of self-fitting nano-sized titanium dioxide catalytic wastewater treatment agent[J]. Inorganic Chemicals Industry, 2020 , 52(5) : 59 -64 . DOI: 10.11962/1006-4990.2019-0047
[1] | 龚家竹 . 钛白粉生产工艺技术进展[J]. 无机盐工业, 2012,44(8):1-4. |
[2] | 龚家竹 . 硫酸法钛白粉酸解工艺技术的回顾与展望[J]. 无机盐工业, 2014,46(7):1-7,42. |
[3] | 龚家竹 . 硫酸法钛白生产废硫酸循环利用技术回顾与展望[J]. 硫酸工业, 2016, No.1:67-72. |
[4] | 龚家竹, 于奇志 . 纳米二氧化钛的现状与发展[J]. 无机盐工业, 2006,38(7):8-10. |
[5] | 龚家竹, 李欣 . 硫酸法钛白粉生产技术面临循环经济促进法存在的问题与解决办法[J]. 无机盐工业, 2009,41(8):15-17. |
[6] | Kranthi Kumar Akurati . Synbook of TiO2 based nanoparticles for photocatalytic applications[M]. Duisburg-Essen:Cuvillier Verlag G?ttingen, 2008. |
[7] | 李大成, 周大利, 刘恒 , 等. 纳米TiO2的特性[J]. 四川有色金属, 2002(3):45-47. |
[8] | 任成军, 李大成, 钟本和 , 等. 影响TiO2光催化活性的因素及提高其活性的措施[J]. 四川有色金属, 2004(4):36-39. |
[9] | 任成军, 钟本和, 周大利 , 等. 水热法制备高活性TiO2光催化剂的研究进展[J]. 四川有色金属, 2004(5):42-44. |
[10] | Duyvesteyn W, Sabacky B, Verhulst D , et al. Process aqueous titanium chloride solution to ultrafine titanium dioxide:US,6440383[P]. 2002-08-27. |
[11] | Meng X G, Dadachov M, George P . Korfiutis.methods of preparing surface activeted titanium oxide product and of using same in water treatment processes:US,6919029[P]. 2005-05-19. |
[12] | Bygott C, Ries M and Kinniard S P . Photocatalytic rutil titanium dioxide:US,7521039[P]. 2009-08-21. |
[13] | Ralf-Johan Lamminmaki, Esa Latva-Nirva and Riitta Linho . Methods of preparing well dispersable macrocrystalline titanium oxide product,the producte,and the use thereof:US,8182602[P]. 2012-05-22. |
[14] | 龚家竹 . 一种自拟合纳米催化污水处理剂的生产方法:中国,201910060630.3[P]. 2019-01-23. |
[15] | GONG Jiazhu . Production method of self fitting nano catalytic wastewater treatment agent:US,16278728[P]. 2019-02-19. |
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