基于BioWni的AAO工艺能耗调控与药耗优化仿真研究

BioWin based simulation on energy reduction and chemicals saving of a large scale AAO wastewater treatment plant

基于BioWin6.0软件,以北方某AAO工艺大型污水处理厂为研究对象,构建模型并验证后,设计正交模拟优化方案,面向能耗调控优先,综合分析出水水质,得到四季推荐运行参数。并对四季药耗进行优化,探寻各季节PAC最佳投加量与进水TP的关系。对所得冬季推荐运行参数及药耗优化方案进行验证,结果显示优化后出水COD、NH_(4)^(+)-N和TP 3个指标均稳定优于《地表水环境质量标准》(GB 3838-2002)Ⅳ类标准(TN除外),且优化后可节约电耗1755 kW·h/d,与优化前相比降低11.3%;PAC投加量单耗由40 mg/L降至19 mg/L,降低52.03%,节能降耗效果显著。

Based on BioWin6.0,a model was built and validated for a large wastewater treatment plant with AAO process in northern China.The simulation research was carried out for energy reduction and drug consumption optimization,and the recommended operating parameters and drug consumption optimization scheme in winter were verified.The results showed that COD,NH_(4)^(+)-N and TP were stably better than the ClassⅣstandard of Surface water environmental quality standard(GB 3838-2002)(except TN)after optimization.Energy consumption can be saved by 1755 kW·h/d after optimization,which was 11.3%lower than before;the unit consumption of PAC decreased from 40 mg/L to 19 mg/L,decreasing 52.03%,and the effect of energy reduction and drug consumption optimization was remarkable.