A computational framework for modelling the fate of selected toxic substances in the meuse basin

1996 ◽  
Vol 34 (12) ◽  
pp. 59-66
Author(s):  
S. Š. Ploco
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Policy Analysis ◽  
Water Quality Management ◽  
Toxic Substances ◽  
Computational Framework ◽  
Integrated Water Management ◽  
University Of Technology ◽  
New Research ◽  
International River

Within the scope of the research program of Integrated Water Management Working Group, new research, focused on developing a computer aided system for policy analysis of water management for international river basins, has been launched at Delft University of Technology. This paper refers to conceptual strategies included in creating a part of the computational framework that will be used to support policy analysis of water quality management. Moreover, it outlines major process formulations and process constants referring to modelling the fate of trace metals (Cd, Cu, Zn), PCBs, PAHs, triazines (atrazine, simazine) and pesticides (dichlorovos, mevinphos, lindane). The choice of these substances is tailored to the prevailing water quality concerns that exist in the Meuse basin.

Institutional and legislative structure of water quality management in Turkey

1994 ◽  
Vol 30 (5) ◽  
pp. 261-268 ◽  
Author(s):  
Selmin Burak ◽  
I. Ethem Gönenç ◽  
Arzu Erol
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Quality Management ◽  
Water Quality Management ◽  
Secondary Importance ◽  
Structure Of Water ◽  
Legal Structure ◽  
Set Up ◽  
Legislative Structure

This paper examines the administrative and legal structure of the wastewater sector in Turkey, identifying its shortcomings and their causes, and suggests solutions. The study begins by outlining the existing administrative and legal structure, then focusing on the areas where difficulties are faced and seeking solutions to them. Those administrative and legal facets which have produced improvements and/or function effectively have been analysed so as to provide examples for other areas. When examining the sector it was observed that problems common to every area are the failure to adequately define powers and responsibilities, the lack of coordination between sectoral organisations, and the fact that attention is generally concentrated on routine matters of secondary importance. The fact that numerous organisations share powers in the same area causes confusion. Plurality also creates difficulties where enforcement is concerned. The existence of more than one set of regulations relating to the same area gives rise to loopholes. At the same time, unrealistic, and hence unenforceable standards undermine the effectiveness of sanctions. It has been concluded that a single organisation should be invested with the legal powers to lay down the principles of water management, that environmental courts should be set up to enforce legislation by means of sanctions; and that for this purpose existing legislation should be reexamined and revised as necessary and/or brought up to date.

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.

Innovative Tools for Water Quality Management and Policy Analysis: Desert and Streamplan

1999 ◽  
Vol 40 (10) ◽  
pp. 103-110
Author(s):  
Carlo De Marchi ◽  
Pavel Ivanov ◽  
Ari Jolma ◽  
Ilia Masliev ◽  
Mark Griffin Smith ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Management ◽  
Policy Analysis ◽  
River Basin ◽  
Emission Reduction ◽  
Water Quality Management ◽  
Water Quality Modeling ◽  
Detailed Model ◽  
Basin Scale ◽  
Alternative Water

This paper presents the major features of two decision support systems (DSS) for river water quality modeling and policy analysis recently developed at the International Institute of Applied Systems Analysis (IIASA), DESERT and STREAMPLAN. DESERT integrates in a single package data management, model calibration, simulation, optimization and presentation of results. DESERT has the flexibility to allow the specification of both alternative water quality models and flow hydraulics for different branches of the same river basin. Specification of these models can be done interactively through Microsoft® Windows commands and menus and an easy to use interpreted language. Detailed analysis of the effects of parameter uncertainty on water quality results is integrated into DESERT. STREAMPLAN, on the other hand, is an integrated, easy-to-use software system for analyzing alternative water quality management policies on a river basin level. These policies include uniform emission reduction and effluent standard based strategies, ambient water quality and least-cost strategies, total emission reduction under minimized costs, mixed strategies, local and regional policies, and strategies with economic instruments. A distinctive feature of STREAMPLAN is the integration of a detailed model of municipal wastewater generation with a water quality model and policy analysis tools on a river basin scale.

scholarly journals Priorities and Preferences in Water Quality Management - a Case Study of the Alsterån River Basin

2019 ◽  
Vol 34 (1) ◽  
pp. 155-173
Author(s):  
Kristina Ek ◽  
Lars Persson
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Framework Directive ◽  
River Basin ◽  
Water Status ◽  
Water Quality Management ◽  
Quality Attributes ◽  
Spatial Proximity ◽  
The European Union

AbstractSweden is a decentralised country where local managers, who are key actors in water management, often deal with relatively difficult prioritisations, tradeoffs and conflicting goals. Many of these challenges relate to the effective implementation of the European Union Water Framework Directive. As an input to these challenges, the present paper elicits and analyses local and semi-local citizens’ preferences for water quality attributes related to the European Water Framework directive in a river basin located in southeast of Sweden. Based on a choice experiment tailored to the case study area, the paper analyses preferences for selected attributes based on real criteria for ecological water status in the implementation of the directive. The target population lives in the municipalities through which the river passes, or in municipalities neighbouring those. Despite this spatial proximity to the river, the analysis reveals limited knowledge and interest in matters related to the environmental quality of the river. There is no evidence that preferences differ between respondents with regard to experience or knowledge about the water basin, nor with regard to recreational habits in the area. These results offer input to local water management by providing information about preferences for explicit water quality attributes.

Enhancing research utilization for integrated water management

1995 ◽  
Vol 31 (8) ◽  
pp. 311-319
Author(s):  
Johan Wisserhof
Keyword(s):  
Water Management ◽  
Policy Analysis ◽  
Research Utilization ◽  
Policy Research ◽  
Integrated Water Management ◽  
Policy Problem ◽  
Additional Input ◽  
Considerable Impact ◽  
Intermediary Role

Water-related research is often performed at significantly lower levels of integration than policymaking for integrated water management. This may limit its utilization in policymaking. Nevertheless, an analysis of strategic policymaking for water management in The Netherlands shows that policy research still has a considerable impact on policy. This is largely due to the integrative intermediary role of policy analysis. (Policy research is the acquisition of knowledge concerning a policy problem. Policy analysis is the appraisal of alternative policies.) However, policy analysis for water management is often restricted to the natural sciences and engineering. An additional input of administrative science may contribute to resolve the current problems in implementation of integrated water policies. Factors of concern in this respect are elaborated.

scholarly journals Pollution Spread Analysis In The Malá Nitra River By Using Of 1-D Model

2014 ◽  
Vol 17 (2) ◽  
pp. 38-42
Author(s):  
Yvetta VELÍSKOVÁ ◽  
Peter HALAJ ◽  
Marek SOKÁČ ◽  
Viliam BÁREK
Keyword(s):  
Water Quality ◽  
Numerical Model ◽  
Input Data ◽  
Dispersion Coefficient ◽  
Management Practice ◽  
Water Quality Management ◽  
Longitudinal Dispersion ◽  
Toxic Substances ◽  
Longitudinal Dispersion Coefficient ◽  
Mean Values

Abstract The Water Framework Directive (WFD) is a key initiative aimed at improving water quality throughout the EU. The development of the computer technologies enables us to solve the ecological problems in water management practice very efficiently. The mathematical and numerical modelling allows evaluating various situations of contaminants spread in rivers (from everyday wastewater disposal through the fatal discharges of toxic substances) without immediate destructive impact on the environment. The paper deals with 1-dimensional numerical model HEC-RAS and its response on various values of dispersion coefficient. This parameter is one of the most important input data for simulation of pollution spread in streams. There were performed tracer experiments in the Malá Nitra River and results of these measurements are compared with results of numerical simulations. The values of the longitudinal dispersion coefficient were estimated from this comparison. The range of mean values of this coefficient determined on the base of numerical model application was 0.05 – 0.13 m2 s−1, for the other flow condition it was 0.07 – 2.5 m2 s−1 or 0.28 – 0.6 m2 s−1. The next task was carrying out the model sensitivity analysis, which means to evaluate input data influences, especially longitudinal dispersion coefficient, on outputs computed by 1-dimensional simulation model HEC-RAS. According to the results it can be said that the model HEC-RAS responds to longitudinal dispersion coefficient value changes adequately, suitably and proportionately. The application of the model HEC-RAS demonstrated the eligibility for simulation of pollution spread in streams, which means that it is a suitable tool allowing a reasonable support in decision making process connected to river water quality management.

scholarly journals Some Results of Applying DPSIR Analysis for Ulaanbaatar as Part of the Selenge River Basin Integrated Water Management System

2011 ◽  
pp. 22-31
Author(s):  
D Odontsetseg ◽  
L Janchivdorj ◽  
G Udvaltsetseg ◽  
J Frieden
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Resources ◽  
River Basin ◽  
Environmental Problems ◽  
Response Analysis ◽  
Integrated Water Management ◽  
Water Management System ◽  
Main River ◽  
Academy Of Sciences

Nowadays, ecological problems are being caused by economic aspects, and other hand economic issues are arising from ecological and environmental problems. Therefore, it is important to consider both social and economic factors, and take a basin approach to solving environmental problems. To find a relationship between economy and ecology, complex study of river basins is extremely important in establishing conditions for sustainable development in our country. This paper shows the results of applying DPSIR (Driver-Pressure-State-Impact-Response) analysis for Ulaanbaatar city, undertaken as part of a project on Integrated Water Management for the Selenge River Basin. The DPSIR analysis looks at the linkage between the economy and environment for the water quality and water resources of Ulaanbaatar. We used mDSS4 software to evaluate a range of management responses suggested by these issues and found that charging for pollution and measuring water use would have the largest overall impact on water quality and water resources respectively. The analysis was carried out for Ulaanbaatar, because it was identified as one of the key hotspot areas in the Selenge River Basin, which is the main river basin in Mongolia, in terms of both the economy and natural systems.DOI: http://dx.doi.org/10.5564/pmas.v0i4.43Proceedings of the Mongolian Academy of Sciences 2009 No 4 pp.22-31

Towards a Water Management Strategy for an environmentally sensitive and popular tourist region

1995 ◽  
Vol 32 (5-6) ◽  
pp. 245-254
Author(s):  
J. F. Kapp ◽  
A. P. M. Fijen ◽  
F. van Zyl
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Water Resources ◽  
Natural Environment ◽  
Management Strategy ◽  
Sustainable Use ◽  
Land Uses ◽  
Integrated Water Management ◽  
Available Water ◽  
Water Management Strategy

This paper describes the development and implementation of an Integrated Water Management Strategy for the catchment of the Wilderness Lakes in the Southern Cape, South Africa. The area is a popular tourist destination due to its environmental variety and scenic beauty. The main land uses in the catchment are: agriculture, forestry, tourism, residential settlement and the natural environment. These land uses compete for a share of the available water resources and have different water quality demands, while at the same time each has an impact on the water quality and quantity and also on other land uses. The water management strategy developed for Wilderness aimed at the responsible management and fair distribution of the available water resources (both quantity and quality) and on the sustainable use of these resources, taking full cognisance of the wishes and opinions of all interest groups in the area. The natural environment played a very important role in the development of the strategy and it was found that a more natural management of the estuary mouth would assist in maintaining the natural characteristics of the Wilderness system. The paper also addresses the structures and management body proposed to implement the Water Management Strategy.

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