384 Works

Sustainable urban drainage and public participation in Albertslund, Denmark

H. H\303\270g, S. Gabriel, A. Henze & M. Krayer Von Krauss
In the city of Albertslund, Denmark, the rainwater collection system has been designed with two goals in mind: i) evacuating and filtering runoff rainwater, and ii) developing rainwater detention ponds of a high aesthetic and recreational quality. The ponds have been the focus of much public attention, and there is little tolerance for pollution of the ponds by metals and oils. Thus, management of the ponds has been a high priority issue for the municipality...

The social impacts of stormwater management techniques

S. Apostolaki, C. Jefferies & T. Wild
This paper presents the results of research into the social impacts of stormwater management techniques applied within urban environments. The main aim of the study was to compare public and professional attitudes of stormwater management practices such as Sustainable Urban Drainage Systems (SUDS) and river management techniques. Any new and innovative technology used in residential areas, besides being economically and environmentally acceptable, must also be accepted by the residents. There has been considerable interest in...

Removal of bacterial indicators of fecal contamination in urban stormwater using a natural riparian buffer

M. Casteel, G. Bartow, S. R. Taylor & P. Sweetland
Little information is available on the ability of naturally-occurring riparian buffers to remove waterborne microbes from urban stormwater runoff. In the present study, bacterial indicators of fecal contamination were quantified in stormwater before and after intentional diversion to a natural riparian buffer (RB) adjacent to a lake located in the City of San Francisco, California. Analysis of lake water showed that levels of Escherichia coli and total coliforms increased significantly during storm events, indicating the...

Development of climate and urban drainage scenarios for impact assessment for Helsingborg, southern Sweden

A. Semadeni-Davies, C. Hernebring, G. Svensson & L. G. Gustafsson
Climate change due to human activities has the possibility of changing both the natural and built environment over the coming decades. As the global population grows and becomes more urbanised, stakeholders have an urgent need for tools to assess the impacts of global warming on urban water resources. However, to date, coping strategies and new technologies have not been addressed within most hydrological impact assessments. This paper presents a project to investigate the relative effects...

Accounting for uncertainty in urban drainage system performance assessment using safety factors applied to runoff

A. C. Hansen, L. Liu, J. J. Linde, O. Mark & P. S. Mikkelsen
A crucial step in looking for causes of flooding is a thorough understanding of the uncertainty related to model-based performance assessment of urban drainage systems. This study introduces a methodology for design and analysis of urban drainage systems that takes into account the uncertainties related to the model inputs and parameters. The methodology has the advantage that it can be applied in different stages of the design process irrespective of the complexity of the calculations....

Stakeholder involvement in wastewater treatment design

D.J. Gilmour, D.J. Blackwood & K. Picken
The design option appraisal stage of new water industry capital investment projects involve greater levels of complexity than those generally encountered in other stages of the design process. It is at this stage that the issues related to sustainable development will be introduced, as decisions are multi-stakeholder and therefore decision criteria that reflect the views of a wide range of stakeholders with a range of different viewpoints need to be incorporated. This paper describes a...

Comparison of numerical and experimental simulations of a flood in a dense urban area

E. Mignot, A. Paquier & T. Ishigaki
Although various numerical methods were used to simulate real floods occurring in cities, the validation of the models was never accurate because of the lack of data about location and event description and about observation for validation. In order to check the capacities of our 2-dimensional shallow water equations model to simulate an urban flood, we then decided to simulate numerically an experimental event with well known characteristics and accurate flow measurements. The physical model...

The effect of climate change on urban drainage: An evaluation based on regional climate model simulations

M.Grum, A. T. J\303\270rgensen, R. M. Johansen & J. J. Linde
That we are in a period of extraordinary rates of climate change is today evident. These climate changes are likely to impact local weather conditions with direct impacts on precipitation patterns and urban drainage. In resent years several studies have focused on revealing the nature, extent and consequences of climate change on urban drainage and urban runoff pollution issues. This study uses predictions from a regional climate model to look at the effects of climate...

Building a bioretention area in a cold climate

T. M. Muthanna & S. T. Thorolfsson
This paper describes an experimental field work setup for testing the performance of bioretention areas in a cold climate setting at Risvollan urban hydrological station in Trondheim, Norway. Bioretention focuses on water retention, peak flow reduction, and water quality improvement with respect to heavy metals and sediments. However, in colder climates the performance of bioretention areas are to a large extent unknown. The most problematic with winter conditions are the many interchanged snow and rainfall...

The city of Montreal's overflow control program

J. Lamarre, D. D. T. Duong, A. Charron & H. Colas
The Quebec provincial government (Minist\303\250re de l\342\200\231Environnement du Qu\303\251bec) has defined environmental discharge objectives (EDO) to protect receiving water bodies and their use against CSOs, SSOs and storm water pollution. The objectives have been established on the basis of direct and indirect water uses, which are to be protected or rehabilitated. They have been defined in terms of maximum overflow frequencies per area and based on the uses of the receiving water bodies. The City...

Filter media for stormwater treatment and recycling: the influence of hydraulic properties of flow on pollutant removal

B. E. Hatt, N. Siriwardene, A. Deletic & T. D. Fletcher
Improved urban water management in Australia is of national importance. Water resources are stretched and urban runoff is a recognized leading cause of degradation of urban waterways. Stormwater recycling is an option that can contribute to easing these problems. Biofilters are effective structural stormwater pollution control measures with the potential for integration into stormwater treatment and recycling systems. However, premature clogging of biofilters is a major problem, with resulting decreased infiltration capacity (and hence the...

To prevent floods in Bangkok: An operational radar and RTC application - Rainfall forecasting

S. Chumchean, T. Einfalt, P. Vibulsirikul & O. Mark
Bangkok is known as one of the cities with a high flooding risk because of several reasons. These include: the city\342\200\231s rapid urbanization, the Chao Praya river inflow from the north of Thailand, an inadequate drainage capacity, backwater from the tidal effects of the Gulf of Thailand, and increase of groundwater consumption causing more land subsidence and sub-sequent reduced drainage capacity. Bangkok Municipal Administration has called for a flood forecasting system integrating information from rain...

Pervious pavement research in Spain: Hydrocarbon degrading microorganisms

J. R. Bay\303\263n, D. Castro, X. Moreno-Ventas, S.J. Coupe & A.P. Newman
Pervious pavements have made an important contribution to stormwater quality improvements in sustainable urban drainage systems, particularly as part of a treatment train approach. In Spain however this approach has hardly been addressed. This paper outlines the emerging research in a collaboration between UK and Spanish Universities aimed at establishing a research infrastructure to allow the study of pervious pavements to be carried out taking into account local conditions in the northwest of Spain. Parallel...

A hydrologists' guide to radar use in various applications

T. Einfalt
This paper is giving guidance on how to answer the question when and where to use which kind of radar data for a given hydrological application. In order to approach this goal, several corner stones are developed to provide guidance for hydrologists. Examples for a successful use of radar data are given. Reasons for the still quite limited routine use of radar data are explained and ways to improve this situation are shown.

Assessment of uncertainties in the modelling of CSOs

J. C. Garc\303\255a-Salas & B. Chocat
Engineers generally use simulation tools such as SWMM, MOUSE, HYDROWORKS, ... to simulate the operation of sewer systems. Equations that are used by these models to represent the hydraulics of sewer systems are well known as well as their performance. Thus the assessment of the performance needs to suppose that the user is an expert who is able to describe each facility in the most accurate way according to the model. In Western Europe, important...

Filtering method for infiltration flow quantification

G. Vaes, B. Willems & J. Berlamont
In Flanders, most of the drainage systems are combined sewer systems, in which waste water and rainfall runoff are drained together. However, not only rainfall runoff enters these pipes. Also other sources of water have a contribution to the flow, as e.g. infiltration of groundwater in the pipe system, inflows from drains, creeks, etc\342\200\246 These flows of relatively clean water also arrive at the treatment plant where the influent is diluted and the treatment efficiency...

The stormwater ambassador program - A community education partnership between schools and local government

G. Mashiah & H. TyasTunggal
The Stormwater Ambassador program is an environmental education partnership between schools and local government which supports students selected by their schools as \342\200\234ambassadors\342\200\235 to promote stormwater and water cycle awareness within the community. Ambassadors learn about the catchment which they live in and related water issues during workshops held each school term, and then develop and implement ideas promoting community awareness. Ambassadors\342\200\231 activities have included regular newspaper columns and community newsletters, school assembly presentations, drain...

HYDROPLAN-EU Knowledge Management Framework for Urban Water Asset Management

Z. Vojinovic, R.K. Price & W. V. Den Broek
Urban water networks for water supply, sanitation and storm drainage provide important services, the failure of which can be very serious for the urban environment and the population. The sustainability of such assets, which frequently, if not continuously, interact with each other and with other components of urban water cycle (i.e., surface water, groundwater and receiving waters), is therefore an important issue for the asset managers. The services provided by these assets are at risk...

From single-objective to multiple-objective multiple-rainfall events automatic calibration of urban storm water runoff models using genetic algorithms

F. Di Pierro, S.-T. Khu & D. Savic
The calibration of storm water runoff models is a complex task. Early attempts focused on the choice of a performance criterion function that could capture all the facets of the problem into a Single-Objective framework. Subsequently, the awareness that a good calibration must necessarily take into account conflicting objectives led to the adoption of more sophisticated Multi-Objective approaches. Only recently, the focus has shifted towards effective ways of exploiting the mounting information provided by the...

Implementation impediments to institutionalising the practice of sustainable urban water management

R.R. Brown, L. Sharp & R.M. Ashley
It is now well accepted that there are significant challenges to realizing the wide-spread and self-sustaining implementation of sustainable urban water management. It is argued that these challenges are entrenched within the broader socio-political framework, yet often unsuccessfully addressed within the more narrow scope of improving technical knowledge and design capacity. This hypothesis is investigated through a comparative analysis of three independent research projects investigating different dimensions of the water cycle including stormwater management in...

Seasonal flood frequency analysis based on disaggregated urban runoff data

B. V. Matheussen, S. T. Thorolfsson & D. P. Lettenmaier
Current design procedures for urban drainage systems are based on the assumption that it is short duration summer rainfall that produces the highest annual runoff peaks. Despite this several researchers report that in cold climates urban flooding may also happen as a consequence of rain in combination with snowmelt. Because of this we chose to question the assumption of rainfall being the only factor controlling urban flooding in cold climates like in Trondheim, Norway. Through...

Highway runoff characteristics in coastal areas \342\200\223 A case study in Aveiro, Portugal

P. A. Antunes & A. E. Barbosa
In the framework of a study for the Portuguese Road Institute, the authors carried out a monitoring study of the IP5 highway, located at the coast line. The TSS and the turbidity values measured in 40 runoff samples were relatively low, resulting from the low potential of the drainage area and surroundings to contribute with solids. Heavy metals results (Fe, Zn, Cu, Pb, Cd and Ni) were in accordance with other studies. It was confirmed...

International urban drainage research database

T. Beenen, G. Vaes, R. Bouteligier & R.G. Veldkamp
The RIONED Foundation (www.riool.net) is the national not-for-profit knowledge centre on sewer systems and urban drainage in The Netherlands. RIONED contracted the University of Leuven and the Delft University of Technology to develop a database on the published results of research projects in the field of urban drainage. The database must give insight in the state of the art of the research in this field, the centres of knowledge on specific themes and must open...

Designing BMPs considering water quality criteria

T. Larm
We require to have a better understanding of whether the designed or constructed Best Management Practices (BMPs) are cost-effective and have the desired effects on the receiving waters or if complementary or alternative measures are needed. The operative Excel model StormTac integrates watershed, transport, recipient and BMP processes. The aim is to present the key equations and parameters. Complementary studies and uncertainties are briefly discussed. StormTac has been implemented in many case projects for planning-level...

Identification of ecological flow for benthos community in urban stream

J. Caletkova, D. Kominkova & J. N\303\241belkov\303\241
The adoption of the Directive 2000/60/EC leads to definition of ecological flow in watercourses which enable organisms or their life stages fixed on water good life conditions. Significant problems are connected with small urban streams impacted by outlets from storm sewer systems. The system of watercourses and their flood plain in urban area lost their natural capability to retain big amount of water and slow down run off. Frequent outflows from sewer and flow variation...

Registration Year

  • 2011
    384

Resource Types

  • Event
    384

Data Centers

  • DTIC Datacenter
    373
  • ETH Z├╝rich Research Collection
    11