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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >UltraCLEAN~reg; process as a package-type advanced wastewater treatment system: experiment and model assisted investigation
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UltraCLEAN~reg; process as a package-type advanced wastewater treatment system: experiment and model assisted investigation

机译：UltraCLEAN〜®工艺作为包装式高级废水处理系统：实验和模型辅助研究

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Activated sludge process model is a well-known tool for optimum design and control of wastewater treatment plant. In this study, ASM2d (Activated Sludge Model No. 2) was used to investigate the UltraCLEAN process. Under the various wastewater of different COD/N ratio (10, 7.5 and 5), the aeration and feeding strategies were optimized and efficiency at each condition was compared. When COD/N ratio was 10, the removal efficiencies of nitrogen and phosphorus were 89% and 82%, respectively. Nitrogen in effluent was stable during the experimental periods, but phosphorus removal efficiencies varied with operation conditions. It was observed that lower COD/N ratio resulted in higher removal efficiency of phosphorus in the range of 7.5 and 5. It was supposed to be a role of denitrifying-dephosphoration, which was only detected in low COD/N ratio condition. Experimental results were used tc estimate model parameters. Nine important parameters were estimated, and the calibrated model with estimated parameters was used to simulate the behaviors of the UltraCLEAN process under various conditions of different HRT, SRT and wastewater of COD/N ratio. And their effects on effluent concentration were evaluated.
机译：活性污泥工艺模型是优化设计和控制废水处理厂的众所周知的工具。在这项研究中，使用ASM2d（2号活性污泥）研究UltraCLEAN工艺。在不同COD / N比（10、7.5和5）的各种废水下，优化了曝气和进料策略，并比较了每种条件下的效率。当COD / N比为10时，氮和磷的去除效率分别为89％和82％。在实验期间，废水中的氮稳定，但是除磷效率随操作条件而变化。观察到较低的COD / N比可在7.5和5范围内提高除磷效率。这被认为是反硝化-脱磷的作用，仅在低COD / N比条件下才能检测到。实验结果用于tc估计模型参数。估计了9个重要参数，并使用带有估计参数的校准模型来模拟UltraCLEAN工艺在不同HRT，SRT和COD / N比废水的各种条件下的行为。并评估了它们对废水浓度的影响。

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