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首页> 外文期刊>Bioprocess and Biosystems Engineering >Dynamic modelling of solids in a full-scale activated sludge plant preceded by CEPT as a preliminary step for micropollutant removal modelling
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Dynamic modelling of solids in a full-scale activated sludge plant preceded by CEPT as a preliminary step for micropollutant removal modelling

机译：CEPT之前，对大规模活性污泥厂中的固体进行动态建模，作为微污染物去除建模的第一步

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摘要

The presence of micropollutants in the environment has triggered research on quantifying and predicting their fate in wastewater treatment plants (WWTPs). Since the removal of micropollutants is highly related to conventional pollutant removal and affected by hydraulics, aeration, biomass composition and solids concentration, the fate of these conventional pollutants and characteristics must be well predicted before tackling models to predict the fate of micropollutants. In light of this, the current paper presents the dynamic modelling of conventional pollutants undergoing activated sludge treatment using a limited set of additional daily composite data besides the routine data collected at a WWTP over one year. Results showed that as a basis for modelling, the removal of micropollutants, the Burger-Diehl settler model was found to capture the actual effluent total suspended solids (TSS) concentrations more efficiently than the Takacs model by explicitly modelling the overflow boundary. Results also demonstrated that particular attention must be given to characterizing incoming TSS to obtain a representative solids balance in the presence of a chemically enhanced primary treatment, which is key to predict the fate of micropollutants.
机译：环境中微污染物的存在引发了对量化和预测废水处理厂（WWTP）中其命运的研究。由于微量污染物的去除与常规污染物的去除高度相关，并且受水力，通气，生物量组成和固体浓度的影响，因此在应对模型以预测微量污染物的命运之前，必须很好地预测这些常规污染物的命运和特征。有鉴于此，本论文利用一组有限的每日综合数据，以及在污水处理厂中收集的一年以上常规数据，介绍了经过活性污泥处理的常规污染物的动态建模。结果表明，作为建模的基础，去除了微量污染物，Burger-Diehl沉降器模型通过对溢流边界进行显式建模，比Takacs模型更有效地捕获了实际废水总悬浮固体（TSS）浓度。结果还表明，在化学增强的一级处理存在下，必须特别注意表征进入的TSS，以获得代表性的固体平衡，这是预测微污染物命运的关键。

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