Key control handles in integrated urban wastewater systems for improving receiving water quality. Issue 8 (14th September 2018)

• Record Type: Journal Article
• Authors: Saagi, Ramesh; Kroll, Stefan; Flores-Alsina, Xavier; Gernaey, Krist V.; Jeppsson, Ulf
• Is Part Of: Urban water journal. Volume 15:Issue 8(2018)
• Page Start: 790
• Page End: 800
• Publication Date: 2018-09-14
• Subjects: BSM-UWS -- integrated control strategies -- global sensitivity analysis -- urban wastewater systems; Municipal water supply -- Management -- Periodicals; Water-supply -- Planning -- Periodicals; 628.1
• DOI: 10.1080/1573062X.2018.1547771
• Languages: English
• ISSNs: 1573-062X

Abstract

ABSTRACT: There is an increasing interest in modelling and control of integrated urban wastewater systems (UWS). Nevertheless, given the multiple interactions between the sub-systems – catchment, sewer system, wastewater treatment plant (WWTP) and receiving water system – the selection of effective control handles for improving receiving water quality is a major challenge. In this paper, a systematic study to identify the most important control handles in an UWS is presented. The Benchmark Simulation Model for Urban Wastewater Systems (BSM-UWS) is selected as a virtual case-study. Morris screening is used to perform global sensitivity analysis. Results indicate that, for the BSM-UWS layout, while river dissolved oxygen quality ( T exc, DO ) is influenced by multiple control handles both in the sewer system and WWTP, river un-ionized ammonia quality ( T exc, NH3 ) is mainly influenced by WWTP control handles. The study highlights the need to perform simulations for at least 1 year when determining key control handles for UWS.