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Numerical hydraulic modeling of urban waste water collecting systems: Working Project at Chazelles-sur-Lyon, France
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Urban waste water collecting systems are designed to convey domestic, industrial and storm water. When sizing sewer network, heavy rainfall must be considered to provide the needed hydraulic capacity for collection.

Maintenance is also required in order to avoid anomalies such as inflow, infiltration and unusual polluted discharges from Combined Sewer Overflows (CSOs). Inflow and infiltration decrease the treatment yield at the Waste water Treatment Plant

(WWTP) and participate in hydraulic overloads and overflows. CSOs have a direct impact on the pollution of water bodies and must be strictly sized and monitored. Detecting sizing and maintenance anomalies is crucial to ensure public health and a good status of our natural environment. Today, numerical hydraulic models support consulting engineers in assessing overflows then in choosing the best technical and cost-effective scenario.

The objectives of this paper are to review the dysfunctions of collecting system and to understand how a numerical hydraulic model is constructed, calibrated and then used to establish a Corrective Action Plan (CAP).

My master thesis is based on a working project achieved at SAFEGE (Group SUEZ Environnement) in the Urban Hydraulics Department in Lyon (Rhône-Alpes, France) between September 2013 and February 2014. The paper will present some outcomes obtained from an Urban Hydraulic Project at Chazelles-sur-Lyon (Rhône-Alpes, France) in the South West of Lyon. Mike Urban is the software - developed by the company DHI Water- used for the numerical hydraulic modeling.

Place, publisher, year, edition, pages
2014. , 84 p.
Series
TRITA-HYD, 2014:1
Series
TRITA-HYD 2014:1
Keyword [en]
Urban hydraulics / Hydraulic modeling / Corrective Action Plan / Combined sewer overflow / Infiltration
National Category
Engineering and Technology Civil Engineering Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-145044OAI: oai:DiVA.org:kth-145044DiVA: diva2:715903
External cooperation
SAFEGE
Subject / course
Water Resources Engineering
Educational program
Degree of Master - Water System Technology
Supervisors
Examiners
Available from: 2014-05-07 Created: 2014-05-06 Last updated: 2014-05-07Bibliographically approved

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