DENGRen-jian,SONGYu-jia,RENBo-zhi,et al.Check Method of ASM2d Mathematical Model Parameter Set Based on Sensitivity Analysis[J].China Water & Wastewater,2022,38(11):83-90.
Check Method of ASM2d Mathematical Model Parameter Set Based on Sensitivity Analysis
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第11期
Page:
83-90
Column:
Date of publication:
2022-06-01
- Keywords:
- ASM2d; mathematical model; parameter set; check; sensitivity analysis
- Abstract:
- There are many parameters to check, large amount of data and mutual influence among parameters in the application of ASM2d model. To solve these problems, a model parameter set check method, which integrated sensitivity analysis, parameter set identification and objective function solution,was proposed and applied to check the parameters of MSBR process in ASM2d model. Eighteen model parameters affected the simulation prediction results, of which 12 parameters needed to be checked, including 3 stoichiometric parameters (YPAO, YH and YPO4) and 9 kinetic parameters (μAUT, bAUT, KNH4, bH, ηNO3, μPAO, bpp, bPAO and qpp). The model was tested by dynamic simulation after checking the parameters. The average relative deviations between the simulated values and measured values of SS, COD, NH4+-N, NO3--N, TP and TN were 6.0%, 9.0%, 15.7%, 9.6%, 14.9% and 7.0%, respectively, but the average absolute errors of NH4+-N and TP were only 0.21 mg/L and 0.13 mg/L, indicating that the model has high prediction accuracy and the parameter check method is feasible.
Last Update:
2022-06-01