Diagnosis and Risk Assessment of Water Engineering Systems

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Urban Water Management".

Deadline for manuscript submissions: closed (15 November 2023) | Viewed by 5156

Special Issue Editor


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Guest Editor
Department of Civil and Environmental Engineering, University of Perugia, Perugia, Italy
Interests: diagnosis; water distribution system; transients; leak; intermittent water supply
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are organizing a Special Issue on the diagnosis and risk assessment of water engineering systems. This Special Issue aims to collect papers that deal with different problems arising in water distribution systems, such as diagnosis and risk assessment techniques and risks related to water quality and transients.

The management of water distribution and supply systems requires a continuous condition assessment activity. In normal functioning conditions, leakage and pipe failures increase customer health risks. In water scarcity conditions, improper system functioning can also lead to the impossibility of fulfilling user demands and intermittent supply, which increases the risk of reduced water quality. Hence, diagnosis and system condition assessment are strongly related to risk assessment and are fundamental management activities.

Different techniques for diagnosis and risk assessment in pressurized pipe systems have been developed based on different physical principles. The coexistence of these techniques in the water market means they can be used for a specific application. Still, none can be helpful for all systems and functioning conditions, considering pipe material and system complexity. For example, techniques based on transients have proven reliable and valuable in simple supply or pumping systems, while their use in water distribution systems is still to be verified. Transients are also considered interesting for their capabilities in determining leaks before break conditions and failure risks.

This Special Issue aims to provide selected contributions on advances in all issues related to the diagnosis and risk assessment of pressurized pipe systems.

Potential topics include but are not limited to:

  • Diagnosis techniques;
  • Risk assessment techniques;
  • Intermittent-water-supply-related risks;
  • Transients in pressurized pipes and related risks;
  • Water quality management;
  • Review papers;
  • Case studies.

Dr. Marco Ferrante
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • diagnosis
  • risk assessment
  • water quality
  • intermittent supply
  • transients
  • water distribution systems

Published Papers (3 papers)

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Research

26 pages, 3735 KiB  
Article
Leakage Risk Assessment of Urban Water Distribution Network Based on Unascertained Measure Theory and Game Theory Weighting Method
by Chuyu Xiong, Jiaying Wang, Wei Gao, Xianda Huang and Tao Tao
Water 2023, 15(24), 4294; https://doi.org/10.3390/w15244294 - 16 Dec 2023
Viewed by 1219
Abstract
Assessing the risk of water leakage within urban water distribution networks (UWDN) is crucial prior to implementing any control measures. Conducting a risk assessment facilitates the development of effective water leakage management plans. By comprehensively analyzing the probability and loss factors that contribute [...] Read more.
Assessing the risk of water leakage within urban water distribution networks (UWDN) is crucial prior to implementing any control measures. Conducting a risk assessment facilitates the development of effective water leakage management plans. By comprehensively analyzing the probability and loss factors that contribute to the risk of leakage in UWDN, this paper presents an evaluation index system for pipeline leakage risk. This index system utilized both quantitative and qualitative data on influencing factors derived from an actual pipeline network. In order to determine the precise level of pipeline leakage risk, an index theory-based pipeline leakage risk evaluation model was established. This model consisted of a single-index measure function and a multi-index comprehensive measure vector. The combined weight of evaluation indices through game theory was used to determine the weight of each index, thereby minimizing the negative effects of a single weight determination method. A risk assessment model that evaluated the leakage risk of specific pipelines was constructed based on actual data from the water distribution network in a certain area of China. The analysis showed that the risk of pipeline leakage in this area was mainly classified as a third-level risk, which is consistent with the actual evaluation results obtained from field visits. Full article
(This article belongs to the Special Issue Diagnosis and Risk Assessment of Water Engineering Systems)
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18 pages, 3595 KiB  
Article
Monitoring Adenosine Triphosphate Concentrations in a Chloraminated Drinking Water Distribution System for Risk and Asset Management
by Rasha Maal-Bared, Michael McCracken, Bharatee Busawon and Darlyce Simpson
Water 2023, 15(9), 1636; https://doi.org/10.3390/w15091636 - 22 Apr 2023
Cited by 1 | Viewed by 1952
Abstract
Utilities rely on reliable and robust monitoring systems to inform decisions around asset operation and management in the drinking water distribution system (DWDS) to deliver high quality, biologically stable drinking water to consumers. However, traditional culture-based testing methods present challenges that make the [...] Read more.
Utilities rely on reliable and robust monitoring systems to inform decisions around asset operation and management in the drinking water distribution system (DWDS) to deliver high quality, biologically stable drinking water to consumers. However, traditional culture-based testing methods present challenges that make the timely detection of regrowth in the DWDS difficult. This study reports the results of an extensive adenosine triphosphate (ATP) monitoring campaign—a non-regulated parameter—in an urban, chloraminated drinking water system that analyzed over 5000 samples from two drinking water treatment plants (DWTPs), associated DWTP reservoirs, twelve outlying reservoirs and the DWDS between 2019–2022. ATP concentrations increased significantly between the two DWTP reservoirs and outlying reservoirs but decreased between the outlying reservoirs and DWDS samples. Relationships between ATP concentrations and other water quality variables varied depending on sampling location. Heterotrophic plate counts (HPC) were mainly non-detects (<1 CFU/mL) providing limited operational guidance compared to ATP. ATP concentrations exhibited temporal and spatial variation but did not exceed the proposed 10 pg/mL corrective action limit suggested by the manufacturer. ATP concentrations were also able to inform outlying reservoir management decisions. Monitoring ATP could serve as a useful indicator of biological stability in the DWDS for the utility of the future. Full article
(This article belongs to the Special Issue Diagnosis and Risk Assessment of Water Engineering Systems)
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18 pages, 19226 KiB  
Article
Early Detection and Identification of Damage in In-Service Waterworks Pipelines Based on Frequency-Domain Kurtosis and Time-Shift Coherence
by Sun-Ho Lee, Choon-Su Park and Dong-Jin Yoon
Water 2023, 15(6), 1189; https://doi.org/10.3390/w15061189 - 19 Mar 2023
Viewed by 1591
Abstract
Buried pipelines, such as waterworks pipelines, are critical for transmitting essential resources and energy in modern cities, but the risk of pipeline failure, especially due to third-party interference, is a major concern. While various studies have focused on leak detection in waterworks pipelines, [...] Read more.
Buried pipelines, such as waterworks pipelines, are critical for transmitting essential resources and energy in modern cities, but the risk of pipeline failure, especially due to third-party interference, is a major concern. While various studies have focused on leak detection in waterworks pipelines, research on preventing impact damage is limited. To address this issue, this study proposes a novel algorithm that utilizes energy and similarity measurements for impact detection and compares it theoretically to existing leak-detection methods. The proposed algorithm utilizes frequency-domain kurtosis to determine the frequency band on which the energy of the impact signals is concentrated, along with a time-shift coherence function to measure the similarity of the signals. The application of the source location using the filtered signals enables accurate detection of the location of third-party interference. The proposed algorithm aims to ensure the safety and to prevent failures of buried pipelines. To verify the feasibility of the proposed algorithm, an excavation experiment using a backhoe was conducted on an in-service waterworks pipeline with a diameter of 2200 mm and a burial depth of 3 m. This experiment confirmed the effectiveness of the proposed algorithm in preventing failures of buried pipelines and demonstrated its practical applicability in the field. The experiment also validated the algorithm’s ability to detect third-party interference damage at various points. Full article
(This article belongs to the Special Issue Diagnosis and Risk Assessment of Water Engineering Systems)
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