Jens Alex

TL;DR: The decisions that have been made over the past three years regarding the models used within the BSM2 are presented and argued, with particular emphasis on the ADM1 description of the digester, the interfaces between activated sludge and digester models, the included temperature dependencies and the reject water storage.

TL;DR: The model equations to be implemented for the proposed layout, the procedure to test the implementation and the performance criteria to be used are described, as well as the sensors and control handles.

TL;DR: The finalised plant layout is summarised and, as was done for BSM1, a default control strategy is proposed and a demonstration of how BSM2 can be used to evaluate control strategies is also given.

TL;DR: The paper describes the development of a benchmark for the evaluation of control strategies in wastewater treatment plants, a platform-independent simulation environment defining a plant layout, a simulation model, influent loads, test procedures and evaluation criteria.

TL;DR: The motivation for the extension is the increasing interest and need to operate and control wastewater treatment systems not only at an individual process level but also on a plant-wide basis and to facilitate the changes, the evaluation period has been extended to one year.