Single and Combined Application of Ozonation and Coagulation/Flocculation for Humic Acid Removal

被引:6
作者
Abdw, Abdelrouf A. G. [1 ]
Dogan, Sifa [1 ]
Pirgalioglu, Saltuk [2 ]
机构
[1] Cyprus Int Univ, Dept Environm Engn, North Cyprus, Mersin, Turkey
[2] European Univ Lefke, Fac Engn, Mersin, Turkey
关键词
Coagulation/Flocculation; Drinking Water Treatment; Humic Acid; Post-Ozonation; Pre-Ozonation; NATURAL ORGANIC-MATTER; DRINKING-WATER; FERRIC-CHLORIDE; PRE-OZONATION; COAGULATION; IRON; ADSORPTION; MECHANISM;
D O I
10.1080/01919512.2018.1435257
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Humic acids are often found in surface and ground waters as a result of organic matter decay. In this study, water samples containing 50mgL(-1) humic acid were treated by conventional application of coagulation/flocculation technique. The results showed 70% +/- 10 turbidity, 82% +/- 10 UV254 absorbance and 85% +/- 10 total organic carbon removal under pH 5-9 and above 5mgL(-1) Fe3+ coagulant doses. Application of post-ozonation significantly increased the UV254 absorbance and turbidity removal under low dose Fe3+ application. On the other hand ozonation prior to coagulation/flocculation process altered the structure of HA and caused no significant improvement in removal efficiencies.
引用
收藏
页码:321 / 329
页数:9
相关论文
共 41 条
[1]  
Abdw Abdelrouf A. G., 2016, 3 INT C REC REUS STA, P155
[2]  
AWWA Staff American Water Works Association, 2011, OP CONTR COAG FILTR
[3]   Combination of coagulation-flocculation and heterogeneous photocatalysis for improving the removal of humic substances in real treated water from Agbo River (Ivory-Coast) [J].
Ayekoe, Chia Yvette Prisca ;
Robert, Didier ;
Gone, Lancine Droh .
CATALYSIS TODAY, 2017, 281 :2-13
[4]  
Becker W., 1996, OPTIMIZING OZONATION
[5]   The effect of ozonation on natural organic matter removal by alum coagulation [J].
Bose, Purnendu ;
Reckhow, David A. .
WATER RESEARCH, 2007, 41 (07) :1516-1524
[6]  
Budd GC, 2004, J AM WATER WORKS ASS, V96, P102
[7]   Effect of-ozone dosage for removal of model compounds by ozone/GAC treatment [J].
Chang, EE ;
Liang, CH ;
Ko, YW ;
Chiang, PC .
OZONE-SCIENCE & ENGINEERING, 2002, 24 (05) :357-367
[8]   Comparison of hydrolysis/coagulation behavior of polymeric and monomeric iron coagulants in humic acid solution [J].
Cheng, WP .
CHEMOSPHERE, 2002, 47 (09) :963-969
[9]  
[Eaton AD. APHA APHA], 2005, STANDARD METHODS EXA, p2
[10]  
Exall KN, 2000, J AM WATER WORKS ASS, V92, P93