Klang River water quality modelling using music

2017 ◽  
Author(s):  
Nazirul Mubin Zahari ◽  
Mohd Hafiz Zawawi ◽  
Zakaria Che Muda ◽  
Lariyah Mohd Sidek ◽  
Nurfazila Mohd Fauzi ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Water Quality Modelling ◽  
River Water Quality Modelling

Structural uncertainty in a river water quality modelling system

2007 ◽  
Vol 204 (3-4) ◽  
pp. 289-300 ◽  
Author(s):  
Karl-Erich Lindenschmidt ◽  
Katrin Fleischbein ◽  
Martina Baborowski
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Structural Uncertainty ◽  
Water Quality Modelling ◽  
Modelling System ◽  
River Water Quality Modelling

River Water Quality Modelling: II. Problems of the Art

1998 ◽  
Vol 38 (11) ◽  
pp. 245-252 ◽  
Author(s):  
P. Shanahan ◽  
M. Henze ◽  
L. Koncsos ◽  
W. Rauch ◽  
P. Reichert ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Water Quality Modelling ◽  
Research And Teaching ◽  
Robust Model ◽  
Allocation Process ◽  
Comprehensive Framework ◽  
The U.S ◽  
River Water Quality Modelling

The U.S. EPA QUAL2E model is currently the standard for river water quality modelling. While QUAL2E is adequate for the regulatory situation for which it was developed (the U.S. wasteload allocation process), there is a need for a more comprehensive framework for research and teaching. Moreover, QUAL2E and similar models do not address a number of practical problems such as stormwater flow events, nonpoint source pollution, and transient streamflow. Limitations in model formulation affect the ability to close mass balances, to represent sessile bacteria and other benthic processes, and to achieve robust model calibration. Mass balance problems arise from failure to account for mass in the sediment as well as in the water column and due to the fundamental imprecision of BOD as a state variable.

River water quality modelling: I. State of the art

1998 ◽  
Vol 38 (11) ◽  
pp. 237-244 ◽  
Author(s):  
W. Rauch ◽  
M. Henze ◽  
L. Koncsos ◽  
P. Reichert ◽  
P. Shanahan ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
State Of The Art ◽  
Water Quality Management ◽  
Simulation Software ◽  
River Water Quality ◽  
Water Quality Modelling ◽  
Quality Models ◽  
Water Quality Models ◽  
River Water Quality Modelling

River water quality models are used extensively in research as well as in the design and assessment of water quality management measures. The application of mathematical models for that purpose dates back to the initial studies of oxygen depletion due to organic waste pollution. Since then, models have been constantly refined and updated to meet new and emerging problems of surface water pollution, such as eutrophication, acute and chronic toxicity, etc. In order to handle the complex interactions caused by the increased influence of human activities in rivers it is today mandatory to couple river water quality models with models describing emissions from the drainage and sewerage system (such as the IAWQ Activated Sludge model No. 1). In this paper-which is the first of a three-part series by the IAWQ Task Group on River Water Quality Modelling-the state of the art is summarized with the above aim in mind. Special attention is given here to the modelling of conversion processes but also the methods and tools to work with the models, i.e. parameter estimation, measurement campaign design, and simulation software, are discussed.

River Water Quality Modelling: III. Future of the Art

1998 ◽  
Vol 38 (11) ◽  
pp. 253-260 ◽  
Author(s):  
L. Somlyódy ◽  
M. Henze ◽  
L. Koncsos ◽  
W. Rauch ◽  
P. Reichert ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
River Water Quality ◽  
Task Group ◽  
Water Quality Modelling ◽  
Quality Model ◽  
Nitrogen And Phosphorus ◽  
Support Tool ◽  
Research Education ◽  
River Water Quality Modelling

This paper is the third of a three-part series summarizing the background to and objectives of the activity of the IAWQ Task Group on River Water Quality Modelling (RWQM). On the basis of the two other papers and a comparison between the best known state of the art river model, QUAL2E, and the IAWQ Activated Sludge Model (ASM) No. 1, the Task Group proposes to develop improved conversion models for inclusion in a river water quality model. The model should describe the cycling of oxygen, nitrogen, and phosphorus in both water and sediment, and should be compatible with the ASM to support the development of integrated emission reduction strategies. The model should be particularly well suited to handle problems characterized by significant temporal and spatial influences (e.g. CSOs and NPSs). It should serve for research, education, improved communication, knowledge transfer, regulatory applications such as catchment planning, and improved data collection. Anticipated results of the Task Group effort include: (i) standardized conversion sub-models; (ii) a decision support tool to guide model construction and usage; and (iii) case study applications. The model development, which is not intended to result in a software product, is intended to be an open-ended and flexible process to encourage the participation of interested professionals.

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