Energy consumption of three different advanced oxidation methods for water treatment: a cost-effectiveness study

被引:73
作者
Mehrjouei, Mohammad [1 ]
Mueller, Siegfried [1 ]
Moeller, Detlev [1 ]
机构
[1] Brandenburg Tech Univ BTU Cottbus, Working Grp Atmospher Chem & Air Qual, D-12489 Berlin, Germany
关键词
Advanced oxidation technologies; Energy consumption; Photocatalytic ozonation; Water treatment; Oxalic acid; Dichloroacetic acid; PILKINGTON ACTIV(TM); OZONATION; OZONE; UVA; PHOTOCATALYSIS; DECOMPOSITION; RADIATION; TIO2;
D O I
10.1016/j.jclepro.2013.07.036
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The present work provides an economic comparative study of three TiO2-based advanced oxidation technologies for removing two well known contaminants from water. The relative costs and outcomes of catalytic ozonation (TiO2/O-3 in dark), photocatalytic oxidation (TiO2/UVA/O-2), and photocatalytic ozonation (TiO2/UVA/O-3) were compared with regard to the degradation of oxalic acid and dichloroacetic acid as model compounds. The combination of TiO2, UVA, and O-3 showed the highest cost-effectiveness among the assessed methods. In the case of oxalic acid decomposition, the cost-effectiveness of catalytic ozonation and photocatalytic oxidation was about two and nine times less than that of photocatalytic ozonation. For the degradation of dichloroacetic acid, catalytic ozonation and photocatalytic oxidation were two and 15 times more expensive than photocatalytic zonation systems with regard to their output. These results were explained well by the synergistic effects on the generation of hydroxyl radicals using photocatalytic ozonation systems. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:178 / 183
页数:6
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