Paper Title:
Pretreatment of Micro-Polluted Raw Water by Parallel Process of Photocatalysis-Biological Contact Oxidation
  Abstract

By using parallel process of photocatalysis-biological contact oxidation, a research on the pretreatment effect of micro-polluted raw water was conducted. The result indicates that the changes of HRT and the initial concentration take significant impact on the removal of NH3-N. 60min is the best residence time for the pretreatment. Once the thickness of composite media is 120mm, the removal efficiency of CODMn may reach as much as 15.55%, while the average removal efficiency of turbidity is 20%. Since the nitration reaction consumes certain amount of alkalinity, the pH value of outlet water is lower than inlet water. When employing parallel process, biological oxidation and photocatalysis are performed and finished in the same reactor simultaneously, conducing to maintaining a moderate level of the removal of CODMn and NH3-N. All these are of reference value for its application in practical engineering projects.

  Info
Periodical
Advanced Materials Research (Volumes 374-377)
Chapter
Chapter 4: Water Purification and Wastewater Treatment
Edited by
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
Pages
851-854
DOI
10.4028/www.scientific.net/AMR.374-377.851
Citation
Y. Q. Guo, C. S. Lei, E. D. Du, "Pretreatment of Micro-Polluted Raw Water by Parallel Process of Photocatalysis-Biological Contact Oxidation", Advanced Materials Research, Vols. 374-377, pp. 851-854, 2012
Online since
October 2011
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ming Yi Chang, Chen Yu Chang, Yung Hsu Hsieh, Kuo Shan Yao, Ta Chih Cheng, Chun Ta Ho
Abstract:The use of TiO2 as photocatalyst to degrade the organic compounds is an effective method of oxidation process and has been widely studied in...
471
Authors: Yan Li Ma, Gui Zhen Fang, Cheng Liu
Chapter 1: Materials Properties
Abstract:(Tetracarboxyphthalocyaninato) cobalt (Ⅱ) was used as dye to enhance the photocatalytic activity of nano-TiO2 in visible light....
1433
Authors: Yi Ren Zhu, Guang Chao Li, Qian Ping Zhang, Chong Tang
Chapter 8: Waste Disposal and Recycling
Abstract:Nanoscale Ferric Oxide was prepared from natural hematite and characterized. Using it as catalyst, methylene blue-simulated wastewater was...
1813
Authors: Hang Xu, Min Yue Li
Chapter 14: Chemical Thermodynamics and Kinetics
Abstract:Nano-ZnO powders were prepared through gel-sol method with zinc acetate and lithium hydroxide as crude material. Nano-ZnO, as photo-catalyst,...
2819
Authors: Xue Shi, Xue Wei Dai, Jiang Wu, Xian Li, Yi Ran Zhang, Yin Xia Cao, Can Li, Jin Ge Yang, Yu Wu, Hai Ting He, Wen Long He, Zheng Ling Xie
Chapter 1: Engineering Science for Manufacturing
Abstract:This paper mainly studied the effects of different iron-doped volume on photo-catalytic oxidation of TiO2 for mercury removal. Through the...
293