Research Progress of Water Treatment by Advanced Oxidation Technology

2013 ◽  
Vol 864-867 ◽  
pp. 2096-2099
Author(s):  
Yang Lai ◽  
Long Yun Yang

Advanced Oxidation Technology (AOPs) is a new water treatment process, especially, for refractory organic wastewater treatment. This paper emphatically introduced the mechanism and research progress of Fenton oxidation method and Fenton method, ozone oxidation, photocatalytic oxidation, wet air oxidation, supercritical water oxidation, electrochemical oxidation, and ultrasonic oxidation technology. The cheaper and more effective catalyst and oxidant is the main development trend in the future AOPs.

2021 ◽  
Vol 267 ◽  
pp. 02065
Author(s):  
lixi Liu ◽  
zhili Chen

Advanced oxidation technology is attracting attention as an effective method of water treatment that can degrade various organic pollutants. The combination of photocatalysis (UV) and ozone (O3) and titanium dioxide (TiO2) is a promising advanced oxidation technology. The combination of ozone, hydrogen peroxide, ultraviolet light and other oxidants for catalytic oxidation is also the current mainstream advanced oxidation technology. They can effectively degrade emerging water pollutants and alleviate water pollution problems. Titanium dioxide, hydrogen peroxide, and ozone are all popular catalysts because of their low cost, non-toxicity, strong oxidizing ability, and easy contact with various surfaces.


2013 ◽  
Vol 726-731 ◽  
pp. 1710-1714
Author(s):  
Wen Yu Zhao ◽  
Xiao Feng Zheng ◽  
Li Wei Xu ◽  
Guang Wen Yang ◽  
Qi Mu

Based on the enhanced formation of hydroxyl free radical (OH), Strengthen ozone oxidation can intensify the oxidizing ability and lower reaction selectivity as a kind of the Advanced Oxidation Technologies (AOTs). This paper introduces the research progress of strengthen ozone oxidation technology such as H2O2 strengthen, catalytic strengthen, UV strengthen, ultrasound strengthen, hydrodynamic cavitations strengthen et al, and points out the research focus and application prospects of this technology.


2013 ◽  
Vol 448-453 ◽  
pp. 7-10 ◽  
Author(s):  
Sheng Wen Chen ◽  
Wen Chao Li ◽  
Zhi Guo Sun ◽  
Hong Yong Xie

In this paper, the advanced oxidation processes of photocatalytic oxidation and Photo-Fenton oxidation were used in degradation of emerging pollutants saccharin sodium. The concentration of saccharin sodium was determined by HPLC. The results showed both photocatalytic oxidation and Photo-Fenton oxidation had an effective degradation of saccharin sodium. The degradation process was followed the first-order reaction. The best conditions of photocatalytic oxidation system: 500W mercury lamp, 0.04 g TiO2, pH=7 and the best ratio of photo-Fenton was SAC:H2O2:Fe2+=5:60:1. The total organic carbon (TOC) of sample has significantly reduced to about 93% by the two systems.


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