污水处理模拟.docVIP

Simulation(模拟 and optimization（最优化 of a full-scale Carrousel oxidation（氧化 ditch（沟 plant for municipal wastewater treatment（市政污水处理 Keywords: Activated sludge（活性污泥 Bioreactor Modeling（模型 Optimization（最优化 Treatment plant（处理计划 Wastewater（污水 a b s t r a c t A full-scale Carrousel oxidation ditch wastewater treatment plant (WWTP) was simulated and optimized through integrating（整合 the activated sludge model 2d (ASM2d), support（支撑 vector regression（退化 (SVR) and accelerating genetic algorithm (AGA)(通过整合ASM2d,SVR和AGA,一个氧化沟污水处理系统被最优化模拟。经过实验数据校准和确认的ASM2d用于模拟程序。试验参数包括HTRs，需氧储水池，SRT都影响SVR和AGA的最优化。模拟结果符合要求，SVR与操作因素和液体的流动质量的有关系. AGA方法被用来获得最佳的操作实验条件。 The ASM2d model after calibration （校准and validation（确认 with the operating data was used to simulate the process. Operating parameters, including hydraulic（液压的 retention（保留 times (HRTs) of anaerobic（厌氧的, anoxic and aerobic（需氧的 tanks（储水池, solids（固体的 retention time (SRT) and internal（内部的 recirculation ratio were subjected(受··影响。to optimization using SVR and AGA. The simulation results were normalized（标准的 and SVR was employed to correlate（关联 the operating factors and the effluent quality. Then, the AGA approach was used to obtain the optimal（最佳的 operating conditions. The multiple-objective（客观的 optimization with different weights indexes（指数 was adopted to achieve simultaneous（同时的 nutrient（营养的 removal. Compared with the present operating conditions, the HRT of the anoxic tank, the internal recirculation ratio and the SRT should be reduced, while the HRT of the aerobic tank should be prolonged（延长to achieve better effluent quality. Such an integrated approach in this study offers an effective and useful tool to optimize the oxidation ditch process of WWTPs（与现有的操作条件比起来，the HRT of the anoxic tank, the internal recirculation ratio and the SRT should be reduced，然而，溶液在需氧储水池的时间要延长，为了获得更好的俩流动质量. Introduction In order to fulfill the stringent(严格的 requirements on the effluent from wastewater treatment plants (WWTPs), a variety of strategies have been pr