Selection of the activated sludge configuration during the conceptual design of activated sludge plants using multicriteria analysis

被引:9
作者
Flores, X
Bonmatì, A
Poch, M
Rodríguez-Roda, I
Bañares-Alcántara, R
机构
[1] Univ Girona, Lab Chem & Environm Engn, Girona 17071, Spain
[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England
关键词
D O I
10.1021/ie040278q
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper presents an extension of an existing systematic conceptual design methodology for urban wastewater treatment plants (WWTP) that combines a hierarchical decision process with mathematical modeling (Vidal et al. Ind. Eng. Chem. Res. 2002, 41, 4992-5005). The main contributions of this new approach are (i) to refine criteria selection and quantification used to compare the competing options with different sources of information (dynamic simulation, model-based cost estimations, literature and expert knowledge); (ii) to propose different value functions to normalize the effect of the criteria used; and (iii) to include a visual representation (gray-scale approach) that eases the visualization of the objectives that were not accomplished and of the main handicaps of the evaluated options. Finally a case study, where an activated sludge configuration for carbon and nitrogen removal is selected, and a sensitivity analysis, to show the influence of the context in the final decision, are also presented.
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页码:3556 / 3566
页数:11
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*WEF, 1992, 76 WEF