Water Supply最新文献_第4页

Optimal determination of valve setting coefficient for the multi-tank water feeder system 多罐给水系统阀门设定系数的优化确定

Water Supply Pub Date : 2024-05-07 DOI: 10.2166/ws.2024.105

Boopathi Ramakrishnan, G. M. Ganesan

引用次数: 0

Appraisal of groundwater suitability and hydrochemical characteristics by using various water quality indices and statistical analyses in the Wadi Righ area, Algeria 利用各种水质指数和统计分析评估阿尔及利亚 Wadi Righ 地区地下水的适宜性和水化学特征

Water Supply Pub Date : 2024-05-07 DOI: 10.2166/ws.2024.103

Bettahar Asma, Şehnaz Şener

{"title":"Appraisal of groundwater suitability and hydrochemical characteristics by using various water quality indices and statistical analyses in the Wadi Righ area, Algeria","authors":"Bettahar Asma, Şehnaz Şener","doi":"10.2166/ws.2024.103","DOIUrl":"https://doi.org/10.2166/ws.2024.103","url":null,"abstract":"\u0000 This assessment research focuses on the hydrochemical characteristics and groundwater suitability in the Wadi Righ region, in southern Algeria. The statement of the problem revolves around determining water quality using various indices including Permeability Index (PI), Residual Sodium Carbonate (RSC),Water Quality Index (WQI),Sodium Percentage (Na%), Sodium Adsorption Ratio (SAR), Canadian Council of Ministers of the Environment's Water Quality Index (CCME WQI), Magnesium Hazard (MH), Irrigation Water Quality Index (IWQI), and Kelly Index (KR). Additionally, statistical methods were utilized to establish correlations between these indices and chemical elements. The working method involved investigating hydrochemical parameters in Wadi Righ's groundwater and analyzing 52 samples. Quantitatively, the results indicate that water quality, as assessed by the water quality indices, was categorized as very poor and unsuitable overall, with lower quality observed particularly in the central and southern regions. However, groundwater demonstrated excellence and suitability for irrigation purposes. Qualitatively, the findings suggest that there are significant relationships among irrigation suitability indices, as indicated by Pearson correlation analysis. These relationships stem from shared inputs and hydrogeochemical characteristics of groundwater. This qualitative analysis reinforces the quantitative findings and provides insights into the underlying factors influencing groundwater quality and suitability for irrigation in the Wadi Righ region.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141003796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating groundwater resources in an equatorial forested basin using geographic information system and remote sensing techniques (case of Nyong, South Cameroon) 利用地理信息系统和遥感技术估算赤道森林盆地的地下水资源（南喀麦隆 Nyong 案例）

Water Supply Pub Date : 2024-05-06 DOI: 10.2166/ws.2024.100

Valentin Brice Ebodé, Bernadette Nka Nnomo

{"title":"Estimating groundwater resources in an equatorial forested basin using geographic information system and remote sensing techniques (case of Nyong, South Cameroon)","authors":"Valentin Brice Ebodé, Bernadette Nka Nnomo","doi":"10.2166/ws.2024.100","DOIUrl":"https://doi.org/10.2166/ws.2024.100","url":null,"abstract":"\u0000 \u0000 This article aims to produce a groundwater potential zone (GWPZ) map of the Nyong basin using an integrated analytical hierarchy process driven in a geographic information system (GIS) environment. For this, seven parameters (rainfall, geology, slopes, drainage density, land use and land cover, lineament density, and soil) known to influence the availability of groundwater were considered. The results obtained show that the Eastern part of the basin holds the largest quantities of groundwater. The produced map shows that this region includes high and very high GWPZs (yield > 6 l/s). It is essentially characterized by abundant rainfall (on average 135–136 and 131–134 mm), low slopes, significant drainage and lineament densities, and significant forest cover. On the other hand, the opposite region (west), which includes the low and very low GWPZs, is characterized by less abundant precipitation (on average 121–125 and 125–128 mm), significant slopes, lower drainage and lineament densities, and greater impervious areas. With a success rate of 80%, confidence deserves to be placed in the GWPZs map produced. It can be considered in water supply projects in this basin. Such work has never been done in this basin before.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141010851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of ANN model for pipe status assessment in drinking water management 评估用于饮用水管理中管道状态评估的 ANN 模型

Water Supply Pub Date : 2024-05-06 DOI: 10.2166/ws.2024.104

Johanna Sörensen, Erik Nilsson, Didrik Nilsson, Ebba Gröndahl, David Rehn, Tommy Giertz

{"title":"Evaluation of ANN model for pipe status assessment in drinking water management","authors":"Johanna Sörensen, Erik Nilsson, Didrik Nilsson, Ebba Gröndahl, David Rehn, Tommy Giertz","doi":"10.2166/ws.2024.104","DOIUrl":"https://doi.org/10.2166/ws.2024.104","url":null,"abstract":"\u0000 Non-revenue water due to pipe leakages presents a significant global challenge, impacting both the economy and environmental sustainability. The current approach to pipe management for water utilities in Sweden is mainly reactive; leaks are repaired when detected, sometimes with large costs if the leakage is extensive and critical. With this study, we want to focus on proactive pipe network management by using an artificial neural network (ANN) model to estimate the probability of leakage in water pipes. The ANN model was trained on leaks that occurred over 10 years. A comparison with leaks reported after the training shows that the model succeeds in identifying groups of pipes with a higher leakage frequency. Evaluation of both new and historical leaks in four different water pipe networks in Sweden showed that a higher prediction value from the ANN model was linked to a higher occurrence of leakage. This indicates that the ANN model succeeds in identifying some of the combinations of attributes that lead to leakage. An evaluation of the input attributes in the ANN model found that the most important attributes for leakage prediction were pipe material, pipe age, adjacent problems on the pipe stretch, pipe length and pipe dimension.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141006362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and prediction of precipitation and temperature under RCP scenarios 模拟和预测 RCP 情景下的降水和温度

Water Supply Pub Date : 2024-05-06 DOI: 10.2166/ws.2024.101

Chengcheng Xu, Kaixuan Guo, Abdiqani Hussein Jama, Chuiyu Lu, Qingyang Sun, Li Xu, Lingjia Yan

{"title":"Simulation and prediction of precipitation and temperature under RCP scenarios","authors":"Chengcheng Xu, Kaixuan Guo, Abdiqani Hussein Jama, Chuiyu Lu, Qingyang Sun, Li Xu, Lingjia Yan","doi":"10.2166/ws.2024.101","DOIUrl":"https://doi.org/10.2166/ws.2024.101","url":null,"abstract":"\u0000 \u0000 Climate change has an immense impact on the environment, ecology, agriculture, and economy. As the most influential climate prediction platform in the world, the Intergovernmental Panel on Climate Change provides important data on predicted future climate change trends. Based on 10 models under the RCP8.5 and RCP4.5 emission scenarios, in this study, we obtained 0.5 × 0.5° data through down-scaling data processing and predicted future rainfall and temperature changes in the Beijing–Tianjin–Hebei region of China. Combined with historical observed data of 198 meteorological stations in the region, the relationships between the predicted values of the model and the measured values were analyzed using the Taylor diagram method. The results show that (1) the future precipitation capacity assessed by the global climate system is generally higher than observed data; (2) for assessment of future temperatures, RCP8.5 shows a larger increase than RCP4.5; (3) for the Beijing–Tianjin–Hebei region, our results show that the MIROC-ESM-CHE model is more consistent with the evaluation of future precipitation capacity, the HadGEM2-ES model is more consistent with the future RCP4.5 scenario temperature evaluation, and the MIROC-ESM-CHEM model is more consistent with the future RCP8.5 scenario temperature evaluation.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141011204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technical and economic impact of water reuse as an integrated water resource management measure in rural water supply systems 将中水回用作为农村供水系统水资源综合管理措施的技术和经济影响

Water Supply Pub Date : 2024-05-03 DOI: 10.2166/ws.2024.099

Irina Angelova, Dimiter Alitchkov, Viden Radovanov

{"title":"Technical and economic impact of water reuse as an integrated water resource management measure in rural water supply systems","authors":"Irina Angelova, Dimiter Alitchkov, Viden Radovanov","doi":"10.2166/ws.2024.099","DOIUrl":"https://doi.org/10.2166/ws.2024.099","url":null,"abstract":"\u0000 Water reuse becomes an alternative in the conventional water supply systems, especially in regions where nonpotable use of drinking water, as for garden and grass irrigation, is predominant. This study evaluates the footprint of reuse on small water supply systems in rural areas, where raw water quality does not meet the drinking water standards, and complicated treatment is needed. Individual facilities for the reuse of potential rainwater, light gray, gray, and domestic wastewater in the households could lead to a decrease in nonpotable tap water use up to 60% and a decrease in households' annual expenses for water supply up to 93 €/household. The installation of individual facilities for common reuse of rainwater and gray wastewater requires the highest investment costs, but the optioǹs operational costs are between 15 and 20% lower than all other options considered. The drinking water treatment plant capacity reduction due to measures’ implementation enables from 48 up to 58% saving in the total operational costs for drinking water supply in the settlement. The shortest payback period and best economic impact of reuse for small-scale water supply systems are observed if rainwater and gray wastewater are reused together.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141016471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on the spatial and temporal evolution patterns of water resource–ecology–social economy composite system resilience in the Huaihe River Basin 淮河流域水资源-生态-社会经济复合系统弹性时空演变规律研究

Water Supply Pub Date : 2024-05-03 DOI: 10.2166/ws.2024.097

Gang He, Jingyi Zhang, Huaiying Jiang

{"title":"A study on the spatial and temporal evolution patterns of water resource–ecology–social economy composite system resilience in the Huaihe River Basin","authors":"Gang He, Jingyi Zhang, Huaiying Jiang","doi":"10.2166/ws.2024.097","DOIUrl":"https://doi.org/10.2166/ws.2024.097","url":null,"abstract":"\u0000 Water resources are important supporting elements in the ecological environment and socio-economic system of sustainable development. The purpose of this study is to evaluate the comprehensive resilience level of the water resources–ecology–socioeconomic system against external disturbances in the Anhui and Shandong sections of the Huaihe River Basin. The comprehensive index system is constructed with the characteristic dimensions of resistance, resilience, and adaptability. Use the game theory combination weighting-VIKOR method to quantify the resilience level, and use the kernel density analysis and Markov chain to explore the spatial and temporal evolution characteristics and transition probability. The results show that (1) the resilience index of the composite system in the Huaihe River Basin shows an increasing trend, and the resilience level of the Anhui section is generally higher than that of the Shandong section. (2) The resilience level gradually evolved into the spatial distribution characteristics of high in the west and low in the east, high in the south and low in the north during the study period. (3) The resilience grade has strong robustness, and the probability of transferring to the higher grade is greater than that of transferring to the lower grade.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141017393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of efficiency on affordability: A study of the Brazilian new water loss goals 效率对负担能力的影响：巴西新水量损失目标研究

Water Supply Pub Date : 2024-05-03 DOI: 10.2166/ws.2024.098

Thalita Salgado Fagundes, Rui Cunha Marques, Tadeu Fabrício Malheiros

{"title":"Impact of efficiency on affordability: A study of the Brazilian new water loss goals","authors":"Thalita Salgado Fagundes, Rui Cunha Marques, Tadeu Fabrício Malheiros","doi":"10.2166/ws.2024.098","DOIUrl":"https://doi.org/10.2166/ws.2024.098","url":null,"abstract":"\u0000 Infrastructure service affordability has become a burgeoning concern over the past years due to the recent economic crisis and the growing role of tariffs in funding the services. Pressure on utilities to promote social assistance programs in addition to an efficient service has risen toward providing water as affordable as possible. This study shows the positive impact of efficient services on families' water affordability by analyzing the new Brazilian water loss goals and the potential effect of water loss reduction on total expenses reported in the Brazilian utilities' National Water and Sanitation Information System (SNIS). The total service cost for water and sanitation (before and after the aforementioned goals) was then translated to average tariff per cubic meter and affordability ratios. The potential water volume saved in physical losses can reach up to 16.6% of the water consumed in the country, and although the impact on water affordability was timid, the positive results indicate utilities have an important role in assuring water and sanitation for all, and regulators must be involved toward taking a deep look at local conditions.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141017483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Clustering of small watersheds in hilly areas based on complex network theory and similarity analysis 基于复杂网络理论和相似性分析的丘陵地区小流域聚类研究

Water Supply Pub Date : 2024-04-25 DOI: 10.2166/ws.2024.089

Dongyun Li, Gouqing Sang, Haijun Wang, Yang Liu, Weilin Wang

{"title":"Clustering of small watersheds in hilly areas based on complex network theory and similarity analysis","authors":"Dongyun Li, Gouqing Sang, Haijun Wang, Yang Liu, Weilin Wang","doi":"10.2166/ws.2024.089","DOIUrl":"https://doi.org/10.2166/ws.2024.089","url":null,"abstract":"\u0000 \u0000 Clustering analysis of small watersheds is an effective tool for identifying the similarity of runoff generation and concentration. In this paper, 545 small watersheds in the hilly areas of Shandong Province were investigated, and 12 indicators representing their climate and subsurface characteristics were selected to identify communities based on hydrological similarity. We further analyzed the hydrological connections among the small watersheds within each community using three indicators (network mean, centrality, and k-core). Finally, the clustering results were evaluated on the basis of the small watershed flood peak modulus. The results of this complex network method indicate that the study area contained six large communities and nine small communities. The community-clustering results were reasonable and showed the interconnectedness of the watersheds within each community. The three network indicators adequately described the degree of similarity, the representativeness of the watersheds, and the spatial scales of similar hydrological features. This method should be helpful for addressing the issue of parameter transplantation in ungauged watersheds and implementation of a flood risk management strategy.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140658695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quality assessment using water quality indicators with geospatial analysis of groundwater quality El-Oued region, Northern Sahara, Algeria 利用水质指标和阿尔及利亚北撒哈拉 El-Oued 地区地下水水质地理空间分析进行水质评估

Water Supply Pub Date : 2024-04-25 DOI: 10.2166/ws.2024.090

Abdessattar Ammari, Fadhila Fartas, Samir Kateb

{"title":"Quality assessment using water quality indicators with geospatial analysis of groundwater quality El-Oued region, Northern Sahara, Algeria","authors":"Abdessattar Ammari, Fadhila Fartas, Samir Kateb","doi":"10.2166/ws.2024.090","DOIUrl":"https://doi.org/10.2166/ws.2024.090","url":null,"abstract":"\u0000 \u0000 The present study was carried out to assess groundwater quality in two layers (Albian and complex terminal) intended for irrigation, to identify their original chemical composition and overall risk by different attack techniques in the province of El-Oued. Eleven physico-chemical parameters were measured at 16 locations. Emphasis was placed on the selection of irrigation water quality index (IWQI) inputs through the application of multivariate statistical analysis, the estimation of various classical irrigation indices, and the integration of geographic information systems. The results of the IWQI, sodium adsorption ratio, Kelly index, permeability index, residual sodium carbonate and magnesium hazard showed that the majority of groundwater samples were classified for irrigation purposes in the following categories: severely restricted (100%), low sodium and excellent (100%), good (93.75%), marginally safe (100%), good (100%) and suitable (81.25%), respectively. In addition, the majority of selected samples were classified as “good to eligible for irrigation” based on %Na as shown in the distribution map. Whereas the principal component analysis results show that the four factors together explain 72.74% of the total variance according to the Kaiser rule. Cluster analysis divides the parameters into three groups. In summary, the combination of the geographic system and irrigation quality indices is useful for identifying irrigation zones.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140653606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0