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T3 Three-phase simulation model for odour and corrosion in sewer systems

Description: Das Projekt "T3 Three-phase simulation model for odour and corrosion in sewer systems" wird vom Umweltbundesamt gefördert und von Technische Universität Berlin, Institut für Bauingenieurwesen, Fachgebiet Wasserwirtschaft und Hydrosystemmodellierung durchgeführt. State of the art and preliminary work: Sewer systems are an essential part of urban wastewater systems. Today, they face significant problems such as the emergence of foul odour and the corrosion of pipelines due to sulphuric acid, and these problems will be increased by climate and demographic change; there is a huge damage potential, and extensive renovations are urgently needed. Reducing odour and corrosion can be achieved by improving control systems with the development of a linkage of modelling and monitoring methods. Although there are several empirical formulas for predicting H2S formation (e.g. Thistlethwayte 1972, ATV 1992, Nielsen et al. 1998, Saracevic 2009), they can only be used under very restrictive conditions and are not suitable for a prediction model for odour and corrosion in sewers. A more general approach is given by a process-based model which solves the conservation equations of mass, momentum, and energy for water and gas phase, taking into account mass-transfer processes between the water-gas and the gas-solid phases (corrosion, Nielsen et al. 2014). The development of such process-based models is at an early stage, and there is only one model (WATS, Hvitved-Jacobsen et al. 2013, Vollertsen et al. 2008) which simulates a wide range of the above-mentioned processes. The following preliminary work will contribute to this doctoral thesis: (i) Simons et al. (2014) have developed the 2D shallow water model HMS using robust high order schemes (Hou, 2013, Hou et al. 2013a, b). HMS is based on the Finite-Volume method and is embedded in an objectoriented framework; (ii) Jourieh et al. (2009) and Jourieh (2014) modelled the spreading of sewer overflow in the river Spree; (iii) Schankat (2009) and Schankat et al. (2009) developed a 2D flow and multi-component biogeochemical reactive transport model for groundwater (DiaTrans) in a similar object-oriented framework; and (iv) Kobayashi (2004), Kobayashi et al. (2007, 2008) and Hinkelmann (2005) analysed mass transfer processes through the water-gas interface for subsurface systems. Prof. Barjenbruch has extensive experience in monitoring odour and corrosion in sewer systems as well as in prevention measures (Barjenbruch & Dohse 2004). Common methods in monitoring, modelling and operating sewer systems to prevent odour and corrosion have been summarized in a literature review by the applicants Prof. Barjenbruch and Prof. Hinkelmann (Barjenbruch et al. 2008). This doctoral thesis will concentrate on the modelling and will be substantially supported by preliminary and running work undertaken in the pilot plant of BWB (see T2).

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Origin: /Bund/UBA/UFORDAT

Tags: Schwefelwasserstoff ? Fluss ? Berlin ? Kanalisation ? Schwefelsäure ? Korrosionsschutzmittel ? Überschwemmung ? Spree ? Abwasserleitung ? Abwasserbehandlung ? Demografischer Wandel ? Geruchsbeseitigung ? Kommunales Abwasser ? Korrosion ? Gasförmiger Stoff ? Untergrund ? Flachwasser ? Geruch ? Bautechnik ? Stand der Technik ? Grundwasserströmung ? Gewässerschutz ? Instandhaltung ? Grundwasser ? Energieeinsparung ? Modellierung ? Kontrollsystem ? Stoffstromanalyse ? Literaturauswertung ? Monitoring ? Gefährdungspotenzial ? Rohrfernleitung ? Klimafolgen ? Prognosemodell ? Verkehrsmodell ? Rohrleitung ? Urbaner Raum ? Stofftransport ? Versuchsanlage ? Wasserwirtschaft ? Klimawandel ? Bepflanzung ? Antragsteller ?

Region: Berlin

Bounding box: 10.44987° .. 10.44987° x 54.03573° .. 54.03573°

License: cc-by-nc-nd/4.0

Language: Deutsch

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Time ranges: 2015-07-01 - 2018-06-30

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