Chemical degradation of polyacrylamide by advanced oxidation processes.
This paper presents the results obtained from the oxidation of polyacrylamide (PAM) by the UV/H2O2, Fenton, UV/Fenton, visible light/Fenton, visible light/Fenton/C2O4(2-), UV/Fenton/C2O4(2-), visible light/Fenton/C4H4O6(2-) and UV/Fenton/C4H4O6(2-) processes. Degradation efficiency for PAM had the following order: UV/Fenton/C4H4O6(2-) > UV/Fenton/C2O4(2-) > visible light/Fenton/C4H4O6(2-) > visible light/Fenton/C2O4(2-) > UV/Fenton > visible light/Fenton > UV/H2O2 > Fenton. The addition of tartrate had a positive effect on chemical oxygen demand (COD) removal. Increasing the concentrations of reagents promoted the oxidation of PAM by the UV/Fenton/C4H4O6(2-) process. The presence of NaCl led to large decreases in the COD removal in the PAM solution.
School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Taoyang Road, Jingdezhen 333001, Jiangxi Province, China. bjlumang@hotmail.com
Mang
M
Lu
Xuejiao
X
Wu
Xiaofang
X
Wei
D000180:Acrylic Resins / Q000737:chemistry* / Q000633:toxicity; D057919:Biological Oxygen Demand Analysis; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry; D007700:Kinetics; D009566:Nitrates / Q000737:chemistry; D010084:Oxidation-Reduction; D010776:Photobacterium; D012965:Sodium Chloride / Q000737:chemistry; D014466:Ultraviolet Rays; D000099166:Polyacrylamides
D000180:Acrylic Resins; D006861:Hydrogen Peroxide; D007501:Iron; D009566:Nitrates; D012965:Sodium Chloride; D000099166:Polyacrylamides; C045076:Fenton's reagent