Journal ArticleDOI
The European Water Framework Directive: Water Quality Classification and Implications to Engineering Planning
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TLDR
The implementation steps of the WFD and their implications for environmental engineering practice are discussed while focusing on rivers as the main receiving waters.Abstract:
The European Water framework directive (WFD) is probably the most important environmental management directive that has been enacted over the last decade in the European Union. The directive aims at achieving an overall good ecological status in all European water bodies. In this article, we discuss the implementation steps of the WFD and their implications for environmental engineering practice while focusing on rivers as the main receiving waters. Arising challenges for engineers and scientists are seen in the quantitative assessment of water quality, where standardized systems are needed to estimate the biological status. This is equally of concern in engineering planning, where the prediction of ecological impacts is required. Studies dealing with both classification and prediction of the ecological water quality are reviewed. Further, the combined emission–water quality approach is discussed. Common understanding of this combined approach is to apply the most stringent of either water quality or emission standard to a certain case. In contrast, for example, the Austrian water act enables the application of only the water quality based approach - at least on a temporary basis.read more
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CITY DRAIN © - An open source approach for simulation of integrated urban drainage systems
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Quantification and control of microbial pollution from agriculture: a new policy challenge?
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References
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Journal ArticleDOI
RIVPACS models for predicting the expected macroinvertebrate fauna and assessing the ecological quality of rivers
TL;DR: The RIVPACS philosophy is to develop statistical relationships between the fauna and the environmental characteristics of a large set of high quality reference sites which can be used to predict the macroinvertebrate fauna to be expected at any site in the absence of pollution or other environmental stress.
Journal ArticleDOI
A review of currently available in-stream water-quality models and their applicability for simulating dissolved oxygen in lowland rivers.
TL;DR: It is concluded with the view that it is unfair to set one model against another in terms of broad applicability, but that a model of intermediate complexity, such as QUASAR, is generally well suited to simulate DO in river systems.
Journal ArticleDOI
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Wolfgang Rauch,Jl Bertrand-Krajewski,Peter Krebs,Ole Mark,W. Schilling,Manfred Schütze,Peter A. Vanrolleghem +6 more
TL;DR: The paper reviews the state of the art in deterministic modelling, outlines experiences and discusses problems and future developments.
River water quality model No. 1
Peter Reichert,Dietrich Borchardt,Mogens Henze,Wolfgang Rauch,P. Shanahan,László Somlyódy,Peter A. Vanrolleghem +6 more
TL;DR: A major limitation in model formulation is the continued reliance on BOD as the primary state variable, despite BOD does not including all biodegradable matter as mentioned in this paper, and a related difficulty is the poor representation of benthic flux terms.
BookDOI
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