Sedimentation is one of the most important processes that determine the performance of the
activated sludge process (ASP), and secondary settling tanks (SSTs) have been frequently …

Environmental quality is becoming an increasing concern in our society. In that context,
waste and wastewater treatment, and more specifically biological wastewater treatment …

The aim of this contribution is partly to build consensus on a consistent modelling
methodology (CMM) of complex real processes in wastewater treatment by combining …

Mathematical Modelling and Computer Simulation of Activated Sludge Systems–Second
Edition provides, from the process engineering perspective, a comprehensive and up-to …

In this paper a comparison is made between two means of obtaining the parameters for the
settling velocity models that are at the core of the solid flux theory:(i) the traditional approach …

The consistent modelling methodology for secondary settling tanks (SSTs) leads to a partial
differential equation (PDE) of nonlinear convection–diffusion type as a one-dimensional …

Sedimentation and suspension flows play an important role in modern technology. This
special issue joins nine recent contributions to the mathematics of these processes. The …

The settling curve is commonly used for studying the sedimentation process of a
suspension. This paper introduces a mathematical equation (S-model) to simulate the …

A one-dimensional model for the sedimentation-compression-dispersion process in the
secondary settling tank can be expressed as a nonlinear strongly degenerate parabolic …

As the work of the IWA Task Group on Benchmarking of Control Strategies for wastewater
treatment plants (WWTPs) is coming to an end, it is essential to disseminate the knowledge …