共查询到18条相似文献,搜索用时 234 毫秒
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简要介绍了IWA专家组提出的4个活性污泥数学模型:ASM1、ASM2、ASM2D和ASM3。从污水处理工艺的改造、优化运行和工艺研究三个方面,综述了ASMs系列模型在国内外的应用状况。 相似文献
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将活性污泥1号数学模型(ASM1)进行简化,根据污水处理厂实测数据调整参数值,用数值模拟方法使用计算机模拟曝气池内铵盐、亚硝酸盐和硝酸盐在流程上的变化。结果证明,调整后的参数和简化模型适用于该污水处理厂。 相似文献
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以反应器动力学原理为基础,借助活性污泥数学模型,对污水处理工艺进行动态模拟实验,为增强实验结果的准确性,采用传统模型处理工艺作为对照。结果表明,基于活性污泥数学模型的污水处理工艺能够有效去除污水中的磷酸盐、氨氮化合物、硝态氮等污染介质,较传统模型处理工艺具有良好的污水处理能力。因此,该模型在污水处理工艺的优化设计与运行中具有较高的实用价值和良好的应用前景。 相似文献
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结合ASM1和二沉池模型组成活性污泥模拟系统,将某污水处理厂的常规检测数据转化为活性污泥系统模型所需的组分数据,然后调整模型参数,使污水处理厂出水指标最接近于污水处理厂实际数据,从而确定适合该污水处理厂的模型参数,最后对该污水处理厂的工艺参数进行了模拟改造。 相似文献
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活性污泥模型的发展及在SBR工艺中的应用 总被引:1,自引:0,他引:1
概述了活性污泥模型(ASM)的发展,对比了ASM各人模型对污水处理反应过程的理论描述。介绍了ASM在SBR工艺中的应用,这些研究表明,应用ASM进行系统的模拟和状态的调整可以辅助SBR工艺的设计,提高污水处理系统的处理效果。但是,由于模型本身和我国实际情况之间存在的问题,应用这些模型仍然有很多困难。 相似文献
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污水处理过程的多目标多模型预测控制方法研究 总被引:1,自引:0,他引:1
针对污水处理过程节能降耗问题以及污水处理过程的高度非线性、强耦合、不确定性等特点.以基于活性污泥2号模型ASM2的A2/O污水处理过程为研究对象,提出了污水处理过程的多目标多模型预测控制方法.该方法首先采用聚类-PLS方法建立污水过程的多模型预测模型,然后构建了包含出水水质区间控制和经济性能指标的多目标优化结构的预测控制策略.仿真结果表明,与设定值预测控制方法相比,多目标优化预测控制策略在保证出水水质的前提下,能有效地节约能耗费用. 相似文献
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JungJin Lim MinHan Kim MinJung Kim TaeSuk Oh OnYu Kang Booki Min Ambati Seshagiri Rao ChangKyoo Yoo 《Korean Journal of Chemical Engineering》2012,29(3):291-303
A one-step model calibration methodology of the activated sludge model no. 1 (ASM1) of a full-scale wastewater treatment plant
(WWTP) is proposed. First, the key parameters among all parameters of the ASM1 model are selected by sensitivity analysis
based on the effluent quality index. Second, multiple response surface methodology (MRSM) is conducted to find the optimal
parameter values of the ASM1 model. Lastly, an MRSM analysis is conducted in order to determine the optimal parameter values.
This study was conducted in order to develop a new systematic model calibration methodology that can greatly help the modeler
to find the optimal solution by selecting the key parameters and optimizing the parameters. In two case studies of simple
activated sludge process and a full-scale plant, the experimental results indicated that the calibrated models can improve
the prediction quality of the ASM model and the efficiency of the modeling. 相似文献
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Mathematical modeling of aerobic membrane bioreactor (MBR) using activated sludge model no. 1 (ASM1)
Seung Hyuk Baek Seok Ku Jeon Krishna Pagilla 《Journal of Industrial and Engineering Chemistry》2009,15(6):835-840
Activated sludge model no. 1 (ASM1) was applied to an aerobic membrane bioreactor (MBR) treating dilute municipal wastewater. The model for the aerobic MBR was calibrated using the data collected from a lab-scale aerobic MBR using AQUASIM 2.0. The performance of MBR process in terms of chemical oxygen demand (COD) removal and ammonia nitrogen (SNH) nitrification was studied at different operating conditions such as hydraulic retention time (HRT), solid retention time (SRT) and mixed liquor suspended solids (MLSS) concentrations. The characteristics of influent wastewater, pre-settled primary effluent from a wastewater treatment plant (City of Elmhurst WWTP, Elmhurst, IL, USA), were determined in the laboratory and used for the calibration of the model. The results from the simulations provided a better understanding of the mechanisms and kinetics of the MBR process including sludge removal. 相似文献