Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland.
Ekofinn-Pol Ltd, 80-297 Banino, Poland.
Int J Environ Res Public Health. 2018 Dec 11;15(12):2817. doi: 10.3390/ijerph15122817.
The biodegradation of particulate substrates starts by a hydrolytic stage. Hydrolysis is a slow reaction and usually becomes the rate limiting step of the organic substrates biodegradation. The objective of this work was to evaluate a novel hydrolysis concept based on a modification of the activated sludge model (ASM2d) and to compare it with the original ASM2d model. The hydrolysis concept was developed in order to accurately predict the use of internal carbon sources in enhanced biological nutrient removal (BNR) processes at a full scale facility located in northern Poland. Both hydrolysis concepts were compared based on the accuracy of their predictions for the main processes taking place at a full-scale facility. From the comparison, it was observed that the modified ASM2d model presented similar predictions to those of the original ASM2d model on the behavior of chemical oxygen demand (COD), NH₄-N, NO₃-N, and PO₄-P. However, the modified model proposed in this work yield better predictions of the oxygen uptake rate (OUR) (up to 5.6 and 5.7%) as well as in the phosphate release and uptake rates.
颗粒状基质的生物降解首先通过水解阶段开始。水解是一个缓慢的反应，通常成为有机基质生物降解的限速步骤。本工作的目的是评估一种基于活性污泥模型 (ASM2d) 修正的新型水解概念，并将其与原始 ASM2d 模型进行比较。开发水解概念是为了准确预测位于波兰北部的全规模设施中强化生物除磷 (BNR) 工艺中内部碳源的利用。根据全规模设施中主要工艺的预测准确性对两种水解概念进行了比较。从比较中可以看出，与原始 ASM2d 模型相比，修正的 ASM2d 模型对化学需氧量 (COD)、NH₄-N、NO₃-N 和 PO₄-P 的行为具有相似的预测。然而，本工作中提出的修正模型对耗氧速率 (OUR)（高达 5.6% 和 5.7%）以及磷酸盐的释放和吸收速率有更好的预测。
