This study reviewed the conceptual basis and the application of extremely high rate activated sludge configurations with gravity settling. It evaluated the modified aeration process, as the historical pioneering development, and the A process (adsorption), which was inspired by the traditional AB process (adsorption/biological oxidation) promulgated in the seventies. For this purpose, a modelling framework was established to simulate the expected performance and the energy recovery potential of these processes using the currently applicable data base. The model evaluation was also extended to cover the Yenikapı plant in Istanbul as a current case study. The modelling results were discussed in view of the handicaps of gravity settling and the merit of high-rate membrane bioreactors where gravity settling would be replaced by membrane filtration. © 2021 Society of Chemical Industry (SCI).

中文翻译：

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具有生物降解和能量回收潜力的重力沉降超快速活性污泥工艺的剖析 - 综述

本研究回顾了具有重力沉降的超高速活性污泥配置的概念基础和应用。它评估了作为历史开创性发展的改良曝气工艺和受七十年代颁布的传统AB工艺（吸附/生物氧化）启发的A工艺（吸附）。为此，建立了一个建模框架，使用当前适用的数据库模拟这些过程的预期性能和能量回收潜力。模型评估也扩展至Yenikapı 工厂在伊斯坦布尔作为当前的案例研究。考虑到重力沉降的障碍和高速膜生物反应器的优点，其中重力沉降将被膜过滤取代，对建模结果进行了讨论。© 2021 化学工业协会 (SCI)。