Dynamic least-cost optimisation of wastewater system remedial works requirements

2006 ◽  
Vol 54 (6-7) ◽  
pp. 467-475 ◽  
Author(s):  
Z. Vojinovic ◽  
D. Solomatine ◽  
R.K. Price
Keyword(s):  
Network Model ◽  
Asset Management ◽  
Random Search ◽  
Water Supply Systems ◽  
Pipe Network ◽  
New Approach ◽  
Wastewater Systems ◽  
Water Companies ◽  
Supply Systems ◽  
Optimal Set

In recent years, there has been increasing concern for wastewater system failure and identification of optimal set of remedial works requirements. So far, several methodologies have been developed and applied in asset management activities by various water companies worldwide, but often with limited success. In order to fill the gap, there are several research projects that have been undertaken in exploring various algorithms to optimise remedial works requirements, but mostly for drinking water supply systems, and very limited work has been carried out for the wastewater assets. Some of the major deficiencies of commonly used methods can be found in either one or more of the following aspects: inadequate representation of systems complexity, incorporation of a dynamic model into the decision-making loop, the choice of an appropriate optimisation technique and experience in applying that technique. This paper is oriented towards resolving these issues and discusses a new approach for the optimisation of wastewater systems remedial works requirements. It is proposed that the optimal problem search is performed by a global optimisation tool (with various random search algorithms) and the system performance is simulated by the hydrodynamic pipe network model. The work on assembling all required elements and the development of an appropriate interface protocols between the two tools, aimed to decode the potential remedial solutions into the pipe network model and to calculate the corresponding scenario costs, is currently underway.

International standards for services activities relating to drinking water supply systems and wastewater systems: Implications for developing countries

2006 ◽  
Vol 53 (6) ◽  
pp. 75-82
Author(s):  
S. Lee ◽  
D. Cha ◽  
H. Park
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Water Systems ◽  
International Standards ◽  
Water Supply Systems ◽  
System Quality ◽  
Wastewater Systems ◽  
Service Standards ◽  
Supply Systems

In developing countries, the PPP (Public–Private–Partnerships) programs have been unsatisfied during the last decade. This study analyzed one of the main causes is low quality of the system. That is, no matter what supports developing countries may get through PPP, reforming water systems can be hardly successful without appropriate system quality. With this background, this study introduces service standards of ISO/TC 224 as an option to improve system quality of developing countries. To analyze its effects, system dynamic modeling was conducted. The results indicated that service standards, working with the PPP programs, can benefit all the stakeholders involved in the water systems in developing countries. Also this indicates further that this approach with service standards deserves more detailed study for improving the ailing water systems in developing countries.

Barcelona's water supply, 1867–1967: the transition to a modern system

Urban History ◽  
2013 ◽  
Vol 41 (3) ◽  
pp. 415-434 ◽  
Author(s):  
MANEL GUARDIA ◽  
MARIBEL ROSSELLÓ ◽  
SERGI GARRIGA
Keyword(s):  
Water Supply ◽  
Cultural Context ◽  
Supply System ◽  
Water Supply System ◽  
Water Supply Systems ◽  
Domestic Sphere ◽  
Modern System ◽  
Expansion Plan ◽  
Water Companies ◽  
Supply Systems

ABSTRACTThe development of modern water supply systems has varied widely in terms of speed, paths and results, and each supply system has been strongly conditioned by its spatial, socio-economic and cultural context. Barcelona provides a useful illustration of how such a modern system came into being in a particularly dynamic southern European setting. Despite being Spain's leading industrial centre, the driving force behind the introduction of its new water supply system did not come from an industrial imperative but rather from the city's expansion plan, approved in 1859, which gave rise to a proliferation of private initiatives. Later, decisive changes around the turn of the twentieth century led to a concentration of water companies, sewer renewal projects and the entry of water into the domestic sphere, and the extension of the water supply to people's homes. The development of a modern water supply system in Barcelona, however, required a period of a hundred years – from 1867, when the first steam-powered pumping station was built, to 1967, when the water from the Ter River transfer reached the city, allowing new consumption patterns to spread rapidly.

scholarly journals The mathematical modelling of water supply systems contaiing a pipe network, pump stations and regulatory reservoirs

2014 ◽  
Vol 1 (4(15)) ◽  
pp. 16
Author(s):  
Сергей Васильевич Дядюн ◽  
Ольга Николаевна Штельма
Keyword(s):  
Water Supply ◽  
Mathematical Modelling ◽  
Water Supply Systems ◽  
Pipe Network ◽  
Pump Stations ◽  
Supply Systems

scholarly journals Implementing tactical plans to improve water-energy loss management

2016 ◽  
Vol 17 (2) ◽  
pp. 381-388 ◽  
Author(s):  
D. Loureiro ◽  
H. Alegre ◽  
M. S. Silva ◽  
R. Ribeiro ◽  
A. Mamade ◽  
...  
Keyword(s):  
Energy Loss ◽  
Asset Management ◽  
Integrated Approach ◽  
Water Supply Systems ◽  
Water Losses ◽  
Economic Dimension ◽  
Energy Assessment ◽  
Loss Control ◽  
The Impact ◽  
Supply Systems

Water utilities are aware of the water-energy loss relevance in supply systems. However, they still mainly focus on daily water loss control (real and apparent losses), without considering the impact on embedded energy. Moreover, they are mostly concerned with the economic dimension and, in most cases, tend to disregard the impact that water-energy loss may have on the quality of service, communication with the consumers, social awareness, water quality and environment. This paper focuses on the application of the developed and tested AWARE-P infrastructure asset management (IAM) methodology to improve water-energy loss management in water supply systems, while demonstrating the main benefits from implementing an integrated approach for water losses and related energy assessment. Results show that indeed the participating iPerdas utilities were able to define tactical measures leading to a more efficient and sustainable service.

scholarly journals The quality of groundwater in rural areas and its impact on the functioning of local water intakes

2018 ◽  
Vol 59 ◽  
pp. 00010
Author(s):  
Robert Nowak ◽  
Anna Imperowicz-Pawlaczyk
Keyword(s):  
Rural Areas ◽  
Treatment Plant ◽  
Quality Parameters ◽  
Water Supply Systems ◽  
Small Water ◽  
Water Companies ◽  
Local Water ◽  
The Impact ◽  
Supply Systems

The main purpose of this paper is to indicate the impact of changes in the quality of groundwater intakes on the functioning of rural water supply systems. In particular, the important factors for the groundwater quality in rural areas have been presented. Results of research on the quality parameters of groundwater, obtained in 2012 ÷ 2016 for selected small water intakes in north-western Poland, were presented. The quality of groundwater in the subsequent analyzed years was deteriorating. There was an increase in the content of iron and manganese compounds, ammonium ions, as well as the presence of bacteriological contaminants in test water samples. For these reasons, problems with providing the receivers with water of appropriate quality parameters have been reported in described rural intakes. The paper is an attempt to show the relationship between the type and magnitude of changes in the quality of groundwater and the efficiency of the treatment plant. In addition, pro-quality activities undertaken by local water companies were emphasized.

scholarly journals Water loss reduction: a new approach to achieve real water savings and environmental benefits

2017 ◽  
Vol 18 (1) ◽  
pp. 251-258 ◽  
Author(s):  
E. Renaud ◽  
J. Pillot ◽  
C. Aubrun ◽  
E. Bréjoux ◽  
B. Augeard
Keyword(s):  
Environmental Benefits ◽  
Water Supply Systems ◽  
Practical Case ◽  
Loss Reduction ◽  
Water Savings ◽  
New Approach ◽  
Water Abstraction ◽  
Supply Systems ◽  
Harsh Reality ◽  
Environmental Importance

Abstract Water scarcity is a harsh reality for many regions. As a result, reducing losses from water supply systems (WSSs) is of great environmental importance around the world. In France, water suppliers are legally bound to reduce losses from their WSSs through loss reduction action plans (LRAPs). For these plans to work, they need to suit the area to which they are applied. Their impacts on water bodies (WBs) and the environment also need to be taken into account. This paper explains an innovative approach to fulfil these objectives. It involves adding two elements to the design of LRAPs: calculation of a water abstraction and discharge balance (WADB) and analysis of environmental effects (AEE) relating to loss reduction actions, based on life cycle assessment. The usefulness and the practicality of this approach are examined through two practical case studies. It is shown that the WADB allows LRAPs to be configured to optimise water savings in the most sensitive WBs. AEE makes it possible to identify a loss reduction level above which the overall environmental balance becomes negative. While the LRAP design and the WADB calculation methods are ready to be used by WSS managers, the AEE still requires further improvement.

Sign in / Sign up

Export Citation Format

Share Document