The Use of Grey Systems Theory to Analyze the Water Supply Systems Safety

Szpak, Dawid; Tchórzewska-Cieślak, B.

doi:10.1007/s11269-019-02348-y

Cited by 14 publications

(16 citation statements)

References 18 publications

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“…Water supply systems, due to their belonging to critical infrastructure, must be characterized by an appropriate level of operational reliability and safety [1,2]. The reliability of the water supply system is understood as its ability to perform its functions, in accordance with the requirements in terms of its functioning and safety, i.e., providing consumers with water in the right amount, of appropriate quality, under the right pressure, at an acceptable price at any time [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Negative Daily Temperatures Influence on the Failure Rate of the Water Supply Network

2021

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As a part of the critical infrastructure, water supply systems must be characterized by an appropriate level of operational reliability and safety. One of the threats to this is the failure of the water supply network, influenced by many factors, among which we can distinguish internal factors related to the process of designing, construction and system operation, and external factors related to the impact of the environment. The paper presents the influence of negative daily temperature on the failure rate of the water supply network, taking into account the material of the pipes, their diameters, and the cause of failure. The research was carried out on operational data from the period 2004–2018 from the water supply network in a city located in south-eastern Poland. The relationship between the daily temperature and the failure rate of the water supply system has been shown. As the temperature values drop, the failure rate values increase. The biggest influence of the negative daily temperature on the water supply network failure rate is observed for cast iron pipes. PE and PVC pipes are more resistant to the influence of negative temperatures. The most common cause of failure is corrosion and unsealing of the pipes. Pipes with the diameters of 100, 150, 300, 350, and 400 mm in distribution and main networks turned out to fail most often. These results can be used by water supply companies to limit the influence of factors related to negative daily temperatures on the failure rate of the water supply network.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Negative Daily Temperatures Influence on the Failure Rate of the Water Supply Network

2021

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“…In "The Use of Grey Systems Theory to Analyze the Water Supply Systems Safety", the use of the grey clustering method based on the grey systems theory is made to evaluate water quality with artificial intelligence criteria. This is due to the fact that in other papers, the limitations of data collection for water supply companies in order to extend the analysis of the matrix, risk in water safety plans [12]. The evaluation uses the monitoring offered published by the National Water Authority (ANA) and the parameters established by MINAM-Peru (DS N° 015-2015), which will be taken into account for this work.…”

Section: Literature Reviewmentioning

confidence: 99%

Grey Clustering Method for Water Quality Assessment to Determine the Impact of Mining Company, Peru

Delgado¹,

Achata²,

Valdivia³

et al. 2021

IJACSA

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Mining operations have a significant impact on environment, where the quality of water is an important affected issue that need to be controlled. In that way, the Grey Clustering Method based on center-point triangular whitenization weight (CTWF), is an artificial intelligence criterion that evaluates water samples according to selected parameters, in order to realize an effective water quality assessment. In the present study, the analysis is made on the Crisnejas River Basin, by using fifteen monitoring points based on an investigation realized by the National Water Authority (ANA) in 2019, based on the Peruvian law (ECA) about water quality standards. The results reveal that almost all of the monitoring points on the Crisnejas River Basin were classified as "irrigation of vegetables unrestricted", but only one point was classified as "animal drink", which is ubicated in an urbanized area. This implies that mining discharges are being well treated by the company, but another deal is the contamination generated in towns. Further, the present study might be helpful to audit processes made by the state or companies, to justify the quality of surface waters using a more accurate methodology.

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“…The most effective diversification strategies relate to numbers of water intakes, network water tanks. Diversification strategies should be taken account of where the modernisation and development perspectives for a CWSS are under consideration [23,24,38,[58][59][60][61][62].…”

Section: Introductionmentioning

confidence: 99%

“…In turn, the proposal for a Directive of the European Parliament and the Council of 1 February 2018 on the quality of water intended for human consumption states that "(...) a risk-based approach should be progressively implemented by all water suppliers, including small entities". Among other things, this provision has ensured water companies' increased interest in methods of risk analysis and management, as well as the possibilities for implementation they offer [58,63].…”

Section: Introductionmentioning

confidence: 99%

Method for Assessment of Water Supply Diversification

Boryczko

Rak

2020

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The approaching prospect of obligatory implementation and pursuit of Water Safety Plans forces water companies to reflect on supplies in crisis situations that, for example, relate to the closure of a basic intake, or scarcity of water due to climates changes (droughts). Where supplies are diversified, there can be greater certainty as to the continuity of good quality supply, even in an emergency. As one of each country’s systems of critical infrastructure, the collective water supply system (CWSS) should be protected, with the diversification of supply treated as a basic tool to raise levels of security among consumers. This article, therefore, presents a method from the authors’ by which diversification may be assessed, including by reference to basic and key elements of the CWSS capable of affecting the continuity of water supply. Sample calculations using the proposed method are also presented here for selected Polish cities. In the event, as only one Polish CWSS can be assigned to the category representing excellent diversification, the suggestion is clearly that Poland’s systems must still progress with the diversification of water supply, in order to further reduce the risk of water shortages.

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The Use of Grey Systems Theory to Analyze the Water Supply Systems Safety

Cited by 14 publications

References 18 publications

Analysis of the Negative Daily Temperatures Influence on the Failure Rate of the Water Supply Network

Analysis of the Negative Daily Temperatures Influence on the Failure Rate of the Water Supply Network

Grey Clustering Method for Water Quality Assessment to Determine the Impact of Mining Company, Peru

Method for Assessment of Water Supply Diversification

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