A new direction in the urban runoff and pollution management in the city of Bergen, Norway

1998 ◽  
Vol 38 (10) ◽  
pp. 123-130
Author(s):  
Sveinn T. Thorolfsson
Keyword(s):  
Water Management ◽  
Research Program ◽  
Planning Process ◽  
Water Environment ◽  
Urban Runoff ◽  
Storm Water ◽  
Source Control ◽  
Master Plan ◽  
Surface Water Management ◽  
Design Values

This paper deals with the new direction in the urban runoff and water environment master planning for the Municipality of Bergen, Norway. The goal is to manage the runoff (wastewater and storm water) in a way that environmental damages are avoided at lowest possible costs. The plan is partly based on the findings in the research program carried out in the Birkeland basin and the subcatchment Sandsli in Bergen since 1981. The solution to the surface water management requires the use of a source control of the water quantity and quality combined with the green trends in the urban storm water management to utilise the capabilities of the urban nature to take up the storm water and to reduce the pollution content in the water. The interaction between the research and the master plan is outlined. In the planning process brooks, rivers and lakes were kept as natural as possible. In evaluating alternative solutions for the urban runoff in the Birkeland basin, the need for better design values and experiences became apparent. Therefore, a research program was started in Birkeland basin and in Sandsli urban hydrological research catchment. The findings in Birkeland and Sandsli have provided valuable data and experiences to the master plan.

scholarly journals Storm water Management in the context of Climate Change and Rapid Urbanization: A case of Tokyo Metropolitan

2019 ◽  
Vol 1 ◽  
pp. 32-44
Author(s):  
Binaya Kumar Mishra
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Urban Areas ◽  
Water Environment ◽  
Storm Water ◽  
Groundwater Depletion ◽  
Flood Events ◽  
Rapid Urbanization ◽  
Storm Water Management ◽  
Tokyo Metropolitan

Groundwater table depletion and increasing flood events can be easily realized in urban areas. It is necessary to improve existing storm water management systems for good quality water environment and reduced hydro-meteorological disasters while preserving our natural/pristine environment in a sustainable manner. This can be achieved through optimal collection, infiltration and storage of storm water. The need of sustainable storm water management is desired and optimal capture measure is explored in this paper. This paper provides a review of storm water management in urbanization and climate change context with a case study of Tokyo Metropolitan, Japan which could be helpful in mitigating the dual problems of groundwater depletion and flood events. This paper presents the overview of storm water run-off management in order to guide future storm water management policies. Also, the effects of different onsite facilities from water harvesting, reuse, ponds and infiltration are explored to establish adaptation strategies that restore water cycle and reduce climate change induced flood and water scarcity.

Storm water management in an urban catchment: effects of source control and real-time management of sewer systems on receiving water quality

2002 ◽  
Vol 46 (6-7) ◽  
pp. 19-26 ◽  
Author(s):  
T. Frehmann ◽  
I. Nafo ◽  
A. Niemann ◽  
W.F. Geiger
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Control Measures ◽  
Storm Water ◽  
Source Control ◽  
Sewer System ◽  
Urban Catchment ◽  
Storm Water Management ◽  
Combined Sewer ◽  
Receiving Water

For the examination of the effects of different storm water management strategies in an urban catchment area on receiving water quality, an integrated simulation of the sewer system, wastewater treatment plant and receiving water is carried out. In the sewer system real-time control measures are implemented. As examples of source control measures the reduction of wastewater and the reduction of the amount of impervious surfaces producing storm water discharges are examined. The surface runoff calculation and the simulation of the sewer system and the WWTP are based on a MATLAB®/SIMULINK® simulation environment. The impact of the measures on the receiving water is simulated using AQUASIM. It can be shown that the examined storm water management measures, especially the source control measures, can reduce the combined sewer overflow volume and the pollutant discharge load considerably. All examined measures also have positive effects on the receiving water quality. Moreover, the reduction of impervious surfaces avoids combined sewer overflow activities, and in consequence prevents pollutants from discharging into the receiving water after small rainfall events. However, the receiving water quality improvement may not be seen as important enough to avoid acute receiving water effects in general.

Living with water: at the cross-roads of change

1995 ◽  
Vol 31 (8) ◽  
pp. 393-400 ◽  
Author(s):  
Joost de Jong ◽  
Peter T. J. C. van Rooy ◽  
S. Harry Hosper
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Environment ◽  
Integrated Water Management ◽  
Practical Action ◽  
The People ◽  
Global Perception ◽  
Local Water ◽  
Water Quality Deterioration ◽  
The Way

Until the last two decades, the global perception of how to control our various water bodies was remarkably similar – water management was organised on a sectoral basis, as it always had been. It was only in the 1970s that the people actually responsible for implementing water management began to become aware of the serious implications of such an approach: water quality deterioration, desiccation and an alarming loss of the flora and fauna that characterised their local water environment. It was a growing awareness that led to the formation of the concept of integrated water management, a concept almost universally accepted today as the way forward. However, despite the fact that few dispute the validity of the concept, a number of obstacles remain before this theoretical agreement can be transformed into practical action. Three main bottlenecks stand in the way of implementation: institutional, communicational and socio-political. Whilst solutions to these are available, the key question still to be answered is whether society is really prepared to accept the consequent changes in the way we live that will result from putting the theory of integrated water management into practice. It was this issue that dominated the “Living with water” conference held in Amsterdam in September 1994. The following is a summary of the discussions held there and the various papers that were submitted.

Policy analysis and complexity – a non-equilibrium approach for integrated water management

1995 ◽  
Vol 31 (8) ◽  
pp. 301-309 ◽  
Author(s):  
Govert D. Geldof
Keyword(s):  
Water Management ◽  
Control System ◽  
Planning Process ◽  
The Other ◽  
Integrated Water Management ◽  
Equilibrium Approach ◽  
History Of ◽  
The One ◽  
Groundwater Policy ◽  
Non Equilibrium

In integrated water management, the issues are often complex by nature, they are capable of subjective interpretation, are difficult to express in standards and exhibit many uncertainties. For such issues, an equilibrium approach is not appropriate. A non-equilibrium approach has to be applied. This implies that the processes to which the integrated issue pertains, are regarded as “alive”’. Instead of applying a control system as the model for tackling the issue, a network is used as the model. In this network, several “agents”’ are involved in the modification, revision and rearrangement of structures. It is therefore an on-going renewal process (perpetual novelty). In the planning process for the development of a groundwater policy for the municipality of Amsterdam, a non-equilibrium approach was adopted. In order to do justice to the integrated character of groundwater management, an approach was taken, containing the following features: (1) working from global to detailed, (2) taking account of the history of the system, (3) giving attention to communication, (4) building flexibility into the establishing of standards, and (5) combining reason and emotions. A middle course was sought, between static, rigid but reliable on the one hand; dynamic, flexible but vague on the other hand.

A study on the effects of urban runoff controls in the sandsli research catchment, Bergen, Norway

1997 ◽  
Vol 36 (8-9) ◽  
pp. 379-384
Author(s):  
Sveinn T. Thorolfsson
Keyword(s):  
Ground Water ◽  
Stormwater Management ◽  
Drainage System ◽  
Urban Runoff ◽  
Source Control ◽  
Urban Stormwater ◽  
Urban Stormwater Management ◽  
Water Conditions

This paper describes a case study on a new alternative drainage system for urban stormwater management, the so-called “Sandsli-system”. The aim of this study is to evaluate the Sandsli system and the effects of the solution on ground water conditions. The study is carried out in the Sandsli research catchment in Bergen, Norway. The idea behind the “Sandsli-system is not to mix the polluted and the clean stormwater combined with a source control for both stormwater quantity and quality. The clean stormwater is percolated as quickly as possible, while the polluted stormwater is collected and conducted to an appropriate site for disposal or treatment. The Sandsli-system was developed as an alternative drainage system to the conventional drainage system. The system has been functioning satisfactorily since 1981 to date. The advantages of the use of the Sandsli-system is highlighted i.e. recharging the stormwater to the ground water. The Sandsli-system is appropriate to locations with climate and geology similar to that found in the coastal part of Norway

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