water supply modeling Articles
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Project - Regional Groundwater Model for the Grand River Basin
Earthfx Incorporated developed a preliminary regional-scale groundwater model for the entire Grand River Conservation Authority area. The objective of the study was to better understand regional groundwater flow in the GRCA and evaluate the interaction between the river and the various aquifer systems in the basin. A key aspect of the study was the integration of multiple smaller-scale models ...
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Structural equation modeling for assessing of the sustainability of rural water supply systems
As one of the basic human needs, water services should be sustainable. Researches related to the sustainability of water services have been conducted in several developing countries. However, there are no identical researches in Indonesia. This paper discusses the analysis of factors that contribute to sustainability of rural water supply systems in East Java, Indonesia. Data is collected by ...
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A GIS-based water distribution model for Zhengzhou city, China
Many water companies in China are developing GIS as a computer-based tool, for mapping and analyzing objects and events that happen on a water distribution network. However, only a few companies have taken a further step to develop a hydraulic model based on GIS, and Zhengzhou Water Supply Corporation is one of them. The WaterGEMS V8 XM from Bentley is used to develop the hydraulic model for the ...
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Implementation of an automated system for optimal pump control - Case Study
To support their integrated water supply grid, which was designed and developed to improve resilience and security of supply in their region, Wessex Water recognised the need for a sophisticated control system. The Servelec Technologies pump optimisation system OptiMISER was identified as the best tool for this function and has been in use in the Control Room since September 2014. Since then it ...
By Ovarro
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Impact of AMD processes on the public water supply: hydrochemical variations and application of a classification model to a river in the Iberian Pyritic Belt S.W. Spain
The aim of this work is to formulate a rapid method for finding out the degree of water pollution in the field, based on the toxicity produced by sulfates and metals dissolved in solution, using simple pH measurement in rivers that undergo AMD processes and which flow into public water supply dams. A classification model based on the degree of the impact is proposed, which is applied to a river ...
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Water system master plan
Client: City of Fort Smith, Ark. Completion Date: 2002 Services Provided Water supply/delivery Hydraulic modeling and design Water quality analyses Water supply hydrology Flood hydrology 3-D project rendering Physical hydraulic models Spillway hydraulics GIS/GPS Design plans and specifications Construction services Project Summary Burns & McDonnell has completed a ...
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Water Network Boundaries and Data Mining
In the book ‘Thinking in Systems’, Donella Meadows describes the importance of defining a system’s boundary in order to answer key questions. In centralised water systems, defining boundaries can be achieved using the location of flow meters. In broad terms data locations are referred to as: Source –the dam, river or treatment plant Network –pump stations, pipes ...
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A model for integrated water resources management in water-scarce regions: irrigation with wastewater combined with desalination processes
We have developed a model for planning water supply from diverse sources, including groundwater, the National Water Carrier, wastewater and seawater. The model integrates hydrological, technological and economic considerations, and estimates the economic and environmental impacts of alternative water management policies; it was implemented in a case study of the Emek Heffer and northern Sharon ...
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Agent-based modelling of water price negotiation for domestic water management in deurbanisation society of Kanazawa City, Japan
To coordinate urban development with domestic water demand, this paper introduced an agent-based model of household water consumption simulation (HWCSim) to simulate the volume of household water consumption regulated by government total amount control. An important water price negotiation module is embedded in HWCSim model to determine the charge price of water resource during government total ...
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A distributed hydrological model in the Heihe River basin and its potential for estimating the required irrigation water
A Grid-based Integrated Surface–Groundwater Model (GISMOD) was developed to estimate the required irrigation water using a control-site method. The entire catchment is divided into multiple grid cells of equal size, and several grid cells can be chosen as the control sites by users in this model. The grid cells from the upper stream of each control site, which have a land-use type of ...
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Effective water supply surveillance in urban areas of developing countries
ABSTRACTWater supply surveillance generates data on the safety and adequacy of drinking water supply in order to contribute to the protection of human health. Most current models of water supply surveillance for urban areas come from developed countries and have significant shortcomings if directly applied elsewhere. There are differences not only in socio-economic conditions but also in the ...
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Hybrid genetic algorithm in the optimization of energy costs in water supply networks
Efficient operation of water distribution systems is linked with the assurance of water availability to the population. In general, the operational rules applied to water distribution networks have as a sole objective the continuity of the water supply and disregards saving energy costs related to the operation of the pumps. The task of determining optimal operational procedures involves several ...
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Quantitative analysis of microbial contamination in private drinking water supply systems
Over one million households rely on private water supplies (e.g. well, spring, cistern) in the Commonwealth of Virginia, USA. The present study tested 538 private wells and springs in 20 Virginia counties for total coliforms (TCs) and Escherichia coli along with a suite of chemical contaminants. A logistic regression analysis was used to investigate potential correlations between TC ...
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Policy transmission: the emerging policy dynamic of water supply infrastructure development in India
The focus of this paper will be to investigate the nature of policy reform in the water supply infrastructure sector in India. In the formal division of powers, much of the authority to implement policies in this sector rests with state governments and the role of the national government is largely restricted to recommending broad policy directions. Since the late 1990s, with the diffusion of the ...
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Spatio-temporal variation of water supply in Guizhou Province, China
Water supply is an important freshwater ecosystem service provided by ecosystems. Water shortages resulting from spatio-temporal heterogeneity of climate condition or human activities present serious problems in the Guizhou Province of southwest China. This study aimed to analyze the spatio-temporal changes of water supply service using the Integrated Valuation of Ecosystem Services and ...
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Evaluation of water efficiency programs in single-family households in the UK: a case study
Current water supply worldwide is facing growing pressure as a result of climate change and increasing water demand due to growing population and lifestyle changes. The traditional way of fulfilling the growing demand–supply gap by seeking new water supply options such as exploiting new fresh water resources and investing in the expansion of infrastructure is no longer considered ...
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Water regionalization study
Client: Tri-County Regional Planning Commission Completion Date: 1992 Services Provided Master planning Water supply and distribution planning Hydraulic modeling Customer and demand projections Cost estimating Economic comparison Regulatory review Statutory review Project Summary Burns & McDonnell completed a Water Regionalization Study for the Tri-County Regional ...
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Source identification of sudden contamination based on the parameter uncertainty analysis
It is important to identify the source information after a sudden water contamination incident occurs in a water supply system. The accuracy of the simulation model's parameters determines the accuracy of the source information. However, it is difficult to obtain the true value of these parameters by existing methods, so reduction of the errors caused by the uncertainty of these parameters is ...
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A two steps solution approach to solving large nonlinear models: application to a problem of conjunctive use
This article describes a solution method of solving large nonlinear problems in two steps. The two steps solution approach takes advantage of handling smaller and simpler models and having better starting points to improve solution efficiency. The set of nonlinear constraints (named as complicating constraints) which makes the solution of the model rather complex and time consuming is eliminated ...
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Economic regulation of the water supply industry in the UK: a game theoretic consideration of the implications for responding to drought risk
Droughts have tested the water supply companies in UK over the past decade. This paper employs game theoretic modelling to test hypotheses regarding the implications of price cap regulation for resource and supply security. We present an empirical analysis of drought management by ten water companies in UK as a basis for formulating formal games. These games are estimated. The game between the ...
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