人民黄河2025，Vol.47Issue(6)：135-143,9.DOI:10.3969/j.issn.1000-1379.2025.06.021
季节变化下山西某城镇污水处理厂仿真模拟优化研究
Research on Simulation and Optimization of a Sewage Treatment Plant in a Town in Shanxi Province Under Seasonal Changes
摘要
Abstract
In order to ensure the stable and compliant operation and energy conservation and consumption reduction of a sewage treatment plant in a certain town in Shanxi Province under seasonal changes,a multi-stage AAO process simulation model was built by using the ASM2D model and WEST software.It selected process operating parameters internal reflux ratio,external reflux ratio,DO concentration,wa-ter inflow ratio and SRT for single factor analysis first,clarified the impact of various parameters on the removal of effluent pollutants,and then used the five factor multi-level orthogonal experiments to obtain the optimal operating conditions for stable operation of sewage treatment plants in summer and winter seasons.The results show that when considering all five factors comprehensively,the optimal effluent effect is achieved in summer when internal reflux ratio is 150%,external reflux ratio is 50%,DO concentration is 1 mg/L,influent ratio is 3:1 and SRT is 15 days.Compare with the original plan,the simulated effluent TN removal rate increases by 14.61%,the aeration rate of the aerobic tank is reduced by 66.67%,and the internal and external reflux rates are reduced by 62.50%and 50%respectively.In winter,the optimal effluent effect is achieved when internal reflux ratio is 250%,external reflux ratio is 80%,DO concentration is 2 mg/L,inflow ratio is 1:2 and SRT is 20 days.Compare with the original plan,the simulated effluent TN and TP removal rates increase by 2.47%and 3.46%respec-tively,and the aeration rate is reduced by 33.33%,the internal and external reflux rates decrease by 62.50%and 20%respectively.After optimizing the operation plan,the effluent quality of the plant has been improved,achieving the goals of stable operation and energy conser-vation and consumption reduction.关键词
季节变化/城镇污水处理厂/仿真模拟/运行工艺优化/山西省Key words
seasonal changes/urban sewage treatment plant/analogue simulation/operational process optimization/Shanxi Province分类
交通工程引用本文复制引用
张润琳,赵喜萍,李泽宇,焦彦举,刘海昕..季节变化下山西某城镇污水处理厂仿真模拟优化研究[J].人民黄河,2025,47(6):135-143,9.基金项目
山西省基础研究计划自然科学研究面上项目(202403021211206) （202403021211206）
