摘要
以上海市某污水厂的A/O脱氮工艺为模拟研究对象,采用EFOR软件对ASM1模型中的参数进行了多因素灵敏度分析,考察了模型中13个参数同时变化时对系统模拟输出结果的影响。结果表明,对系统出水COD有显著影响的参数顺序为:kh>μH>KS>YH;对系统出水NH3-N有显著影响的参数顺序为:KOA>KOH>μA>YH>kh>bA;对系统出水NO3--N有显著影响的参数顺序为:YH>KX>KOA>μA>KS>bH>kh;对系统出水TN有显著影响的参数顺序为:kh>μH>KS>YH>KOA>KX>ka;对好氧池中惰性颗粒产物有显著影响的参数顺序为:YH>μH>KOH>KX>bH>kh>YA。研究表明,找出对输出结果有显著影响的参数可提高模型的实用性,特别是在用实际污水厂数据对模型软件进行校正时,可以缩小需要校正参数的范围,具有节省时间和提高精度的作用。
Taking the A/O nitrogen removal process parameters of a WWTP in Shanghai as a simulation object, multiple factors sensitivity towards the parameters of the ASM1 model were analyzed with the EFOR software. 13 sensitivity factor analyses were investigated at the same time and changes due to these influences were studied. Analysis indicates that the sequence of parameters which have prominent influences on the COD, NH3 -N,NO3^- -N, and TN of the effluent is： kh 〉μH 〉Ks 〉 YH,KOA 〉KOH 〉 μA 〉 YH 〉kh 〉 bA, YH 〉 Kx 〉 KOA 〉μA 〉 Ks 〉 bH 〉 kh ,kh 〉μH 〉 Ks 〉 YH 〉 KOA 〉 Kx 〉 ka respectively. And that on the inert particles in the aerobic tank is YH 〉μH 〉 KOH 〉 Kx 〉 bH 〉 kh 〉 YA. The research of this section on the thesis can provide the basis for model validation. Using the results of multiple factor sensitivity analysis, factors which needs to be regulated can be reduced, time can be saved and precision in model validity can be improved.
出处
《中国给水排水》
CAS
CSCD
北大核心
2006年第23期56-58,共3页
China Water & Wastewater
基金
国家自然科学基金资助项目(50138010)
关键词
模型参数
灵敏度分析
正交试验
model parameters
sensitivity analysis
orthogonal test
