关键词:

活性污泥, 总费用, 优化设计, 灵敏度分析

Abstract:

ASM2D was used as mechanism model for optimizing the activated sludge nutrient removal process.For minimizing the total design cost under the premise of meeting emission standards, the sensitivity of each parameter in the optimization model was analysed.The sensitivity of different parameters varies greatly, in which the objective function has the largest impact on the design results with a sensitivity value of -99.02%.The maximum sensitivities of influent components, stoichiometric parameters and kinetic parameters are 16.06%, 11.9% and 7.60%, respectively.With the decline of emission standards, the total cost also will be reduced.Through sensitivity analysis in optimization design, the influence extent of important parameters on the optimization results can be obtained, which also provide theoretical bases for parameters calibrating and results outputing.

Key words:

活性污泥, 总费用, 优化设计, 灵敏度分析