Water Supply最新文献_第6页

Effects of conventional soil and water conservation measures on soil moisture of sloping land in the loess region 常规水土保持措施对黄土地区坡耕地土壤水分的影响

Water Supply Pub Date : 2024-04-10 DOI: 10.2166/ws.2024.074

Yuanyuan Chai, Xi Shi, Runxia Zhang, Chong Han

{"title":"Effects of conventional soil and water conservation measures on soil moisture of sloping land in the loess region","authors":"Yuanyuan Chai, Xi Shi, Runxia Zhang, Chong Han","doi":"10.2166/ws.2024.074","DOIUrl":"https://doi.org/10.2166/ws.2024.074","url":null,"abstract":"\u0000 \u0000 Traditional soil conservation measures were widely recognized for their excellent ability to promote rainwater infiltration in the loess region. However, little is known about how these measures affect the soil moisture variations under natural rainfall conditions. To compare their effects on soil water content, four different treatments were conducted at runoff plots, i.e., super absorbent polymer amendment (SCR), ridge–furrow rainwater harvesting with plastic mulching (CRP), the same measure with CRP but without mulching (CRN), and flat planting (FSN, control), soil moisture at multiple slope positions and depths were periodically measured. The results showed that in the top 0- to 30-cm soil, SCR and CRN relatively greatly varied with time, yet CRP and FSN changed less. The mean soil water content of these treatments generally followed the pattern of CRN > SCR > CRP > FSN. Responding to a heavy rainfall event, the recharge and depletion rates of soil water storage generally showed similar patterns of SCR > CRN > CRP > FSN in the topsoil, yet in the deeper soil they followed the patterns of CRP > CRN > FSN > SCR. It suggested that SCR and CRN could improve the water accumulation and infiltration performances in the topsoil, and thus may be more suitable for rain-fed crop planting on sloping farmlands of the loess region.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140718382","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

Calibration of intermittent water supply systems hydraulic models under data scarcity 在数据匮乏的情况下校准间歇性供水系统水力模型

Water Supply Pub Date : 2024-04-10 DOI: 10.2166/ws.2024.075

Ane Leinæs, K. Simukonda, R. Farmani

{"title":"Calibration of intermittent water supply systems hydraulic models under data scarcity","authors":"Ane Leinæs, K. Simukonda, R. Farmani","doi":"10.2166/ws.2024.075","DOIUrl":"https://doi.org/10.2166/ws.2024.075","url":null,"abstract":"\u0000 \u0000 Intermittent water supply systems (IWSSs) are unable to meet customer demands due to water scarcity from the sources or due to economic or/and technical scarcity. Conversion to continuous water supply as a means of tackling IWSSs’ inherent problems of inequitable water distribution, limited water supply hours, high non-revenue water, system operation and maintenance costs, and poor water quality is essential for sustainable water supply. Modelling and optimisation techniques have been used to aid the conversion process, optimisation of the operation of these systems, and guiding leakage reduction actions. However, modelling IWSSs have several challenges. These include the lack of accepted existing modelling techniques that include leakage modelling and the lack of comprehensive methodology for calibrating IWSS hydraulic models under limited calibration data. This study proposes a methodology for calibrating IWSS hydraulic models that include leakage modelling. The proposed methodology involves distinct steps to mitigate the problem of data scarcity, it eliminates the trial-and-error procedure of determining the leakage emitters' coefficients by using optimisation and it presents an approach for estimating the lower and upper bounds of the emitters' coefficients. The methodology was applied to a case study in Zambia. The calibration procedure gave accurate results given the limitation of data.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716418","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

Comprehensive evaluation and analysis of water resource characteristics in Lixiahe Plain, China 中国里下河平原水资源特征综合评价与分析

Water Supply Pub Date : 2024-04-09 DOI: 10.2166/ws.2024.076

Liang He, Liwen Yang, Ling Chen, Yabin Ye, Shuo Zhang, Chenfang Xu

{"title":"Comprehensive evaluation and analysis of water resource characteristics in Lixiahe Plain, China","authors":"Liang He, Liwen Yang, Ling Chen, Yabin Ye, Shuo Zhang, Chenfang Xu","doi":"10.2166/ws.2024.076","DOIUrl":"https://doi.org/10.2166/ws.2024.076","url":null,"abstract":"\u0000 \u0000 Lixiahe Plain's local water resources need to be evaluated effectively and comprehensively. This study is based on the multisource data from 60 natural water samples, 16 rainfall monitoring stations, and 2 evaporation monitoring stations from 1965 to 2020. Synchronous series representativeness analysis, water quality analysis, and water resource availability estimation are conducted to analyze the spatiotemporal distribution characteristics of rainfall, evaporation, and water quality and calculate the availability of various types of water resources. The results indicate that the spatiotemporal distribution of rainfall and evapotranspiration in the study area is uneven, which increases the threat of local floods and droughts. The quality of the main rivers and lakes in the region is good, and the water quality of the drinking water source area and groundwater reaches and even exceeds Class III water standards. In the year 2020, the total water usage in the research area reached 341 million m3. However, the available sum of surface water resources and transit water availability in 2022 was only 201 million m3, so local water supply needs cannot be easily met. Exploring the water resource characterization model of the Lower Rivers Plain can help in local water resource management and protection.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140725719","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

Defluoridation of tap water by electrocoagulation and fluoride adsorption on aluminum hydroxide flocs 通过电凝和氢氧化铝絮凝体吸附氟化物对自来水进行除氟处理

Water Supply Pub Date : 2024-04-09 DOI: 10.2166/ws.2024.079

Sirin Dhifallah, Anis Attour, Christophe Vial, Fehti Zagrouba, F. Audonnet

{"title":"Defluoridation of tap water by electrocoagulation and fluoride adsorption on aluminum hydroxide flocs","authors":"Sirin Dhifallah, Anis Attour, Christophe Vial, Fehti Zagrouba, F. Audonnet","doi":"10.2166/ws.2024.079","DOIUrl":"https://doi.org/10.2166/ws.2024.079","url":null,"abstract":"\u0000 \u0000 Overload of fluoride ions in water is observed in several regions of southern Tunisia, mainly the regions close to the mining basin of Gafsa: Metlaoui, Omlarayes and Redayef. This study concerns fluoride removal from Metlaoui's tap water by electrocoagulation (EC) using aluminum electrodes in a batch reactor. This water contains 3.5 mg·L−1 of fluoride, the highest concentration observed in these basins. The effect of the operating conditions of EC treatment on tap water defluoridation was analyzed, namely, current density, temperature and interelectrode distance. Hydroxide aluminum flocs, formed with different durations of EC, were used as sorbents in fluorinated deionized water ([F−] = 3.5 mg·L−1) and Metlaoui's tap water. Flocs formed after 30 min of EC, produced by dissolving (79 ± 1) mg·L−1 of aluminum and adjusted at pH = 6.5, allowed the adsorption of (98 ± 1)% of fluoride ions from deionized fluorinated water. Flocs adjusted at different pH, from 5 to 9, were used as sorbents in fluorinated deionized water and Metlaoui's tap water. Acidic and neutral flocs allowed the best yields of fluoride adsorption. Contrary to the literature, this work highlighted the absence of ion exchange of hydroxide anion by fluoride anion in water, highlighting a mechanism of physical adsorption on aluminum hydroxide flocs.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140720913","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

GIS-based water inrush risk evaluation of the 10th coal seam floor in Zhuxianzhuang Coal Mine, northern Anhui Province, China 基于 GIS 的皖北朱仙庄煤矿第 10 煤层底板涌水风险评价

Water Supply Pub Date : 2024-04-09 DOI: 10.2166/ws.2024.077

Qilin Jiang, Qimeng Liu, Huichan Chai, Xianxiang Hu

引用次数: 0

Development of a user-friendly hydraulic model for simulating hybrid water distribution networks: a transition toward sector sustainability 开发用户友好型水力模型，模拟混合配水管网：向行业可持续性过渡

Water Supply Pub Date : 2024-04-04 DOI: 10.2166/ws.2024.072

Denis Obura, Vivian Nabifo, Obed Akamushaba, Immaculate Apiny, Derrick Dadebo

{"title":"Development of a user-friendly hydraulic model for simulating hybrid water distribution networks: a transition toward sector sustainability","authors":"Denis Obura, Vivian Nabifo, Obed Akamushaba, Immaculate Apiny, Derrick Dadebo","doi":"10.2166/ws.2024.072","DOIUrl":"https://doi.org/10.2166/ws.2024.072","url":null,"abstract":"\u0000 \u0000 The conventional computational approach for modeling and simulating drinking water distribution networks (WDNs) is time-consuming and prone to human errors. Therefore, this study developed and implemented a hydraulic modeling tool, the ‘Kyema-Net model’, based on the modified Hardy Cross algorithm in Visual Basic, to simulate a hybrid WDN with the inclusion of pipe cost assessment. The model's accuracy was validated by comparing its outputs with those of EPANET 2.2 software. The Kyema-Net model and EPANET 2.2 simulation results were comparable. Considering the WDN case study, the proposed model initialized nodal inflows in proportions of 60 and 40% for any two pipes exiting the node, reducing the computational steps. The model executed three trials to achieve the final solution against four trials for EPANET 2.2. The mean absolute percentage error, coefficient of determination (R2), and root mean square error metrics for flow velocity were ∼0.00%, 1.00, and ∼0.00 m, respectively. The modified resilience index values ranged between 0.30 and 1.09. Implementing the proposed hydraulic modeling tool in designing and/or rehabilitating WDNs demonstrated compliance with numerous social-, economic-, and technological-related Sustainable Development Goals. This would assist various water sector stakeholders in the sustainable planning, operation, and management of WDNS globally.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140743534","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

Assessment of non-revenue water in the urban water distribution system network in Cameroon (Central Africa) 喀麦隆（中非）城市供水系统网络无收入水量评估

Water Supply Pub Date : 2024-04-04 DOI: 10.2166/ws.2024.071

Karel Josy Ngueyim Nono, Victor Dang Mvongo, Celestin Defo

引用次数: 0

Water–energy network provisioning services in Harare, Zimbabwe 在津巴布韦哈拉雷提供水电网络服务

Water Supply Pub Date : 2024-04-04 DOI: 10.2166/ws.2024.073

C. Gandidzanwa, M. Togo, A. Mawonde

{"title":"Water–energy network provisioning services in Harare, Zimbabwe","authors":"C. Gandidzanwa, M. Togo, A. Mawonde","doi":"10.2166/ws.2024.073","DOIUrl":"https://doi.org/10.2166/ws.2024.073","url":null,"abstract":"\u0000 Water–energy systems are interlinked. Energy is used in the treatment and pumping of water. Water is used to generate electricity. Effective and efficient water–energy network provisioning satisfies households’ basic human needs. Most local authorities of developing countries have seen water and energy scarcity in the face of climate change. The research aims to understand the interlinkage of water–energy services and to develop integrated and innovative green solutions in line with sustainable development goals. This study explores water and energy network provisioning to promote an integrated approach to planning and managing service delivery in Harare, Zimbabwe. The paper also establishes how water and energy provisioning challenges have affected main domestic activities.. The study embraced a sequential mixed-method approach. In-depth interviews were used to solicit information from relevant departments and focus group discussions from communities. A total of 314 questionnaires were administered to five communities based on five settlement classifications. The study hinges on the ‘collective action theory’. Findings revealed poor governance issues, including lack of finance and lack of public participation in water and energy service delivery. Integration of sectors and community participation can improve the provision of water–energy services and contribute to reducing carbon emissions through greening households.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742076","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

Operational effect of green roof systems with a modified substrate-adding soda residue soil 使用改良基质添加苏打渣土的屋顶绿化系统的运行效果

Water Supply Pub Date : 2024-04-04 DOI: 10.2166/ws.2024.070

Huiteng Wang, Hui Luo, Jing Yang, Teng Qin, Limi Chen, Mingyue Yang, Bao-Jie He

{"title":"Operational effect of green roof systems with a modified substrate-adding soda residue soil","authors":"Huiteng Wang, Hui Luo, Jing Yang, Teng Qin, Limi Chen, Mingyue Yang, Bao-Jie He","doi":"10.2166/ws.2024.070","DOIUrl":"https://doi.org/10.2166/ws.2024.070","url":null,"abstract":"\u0000 \u0000 To investigate whether soda residue soil could be used as a green roof substrate, this paper setup six green roof systems with four materials (peat soil, coconut bran, perlite, and soda residue soil) mixed in different volume proportions. The effect of soda residue soil content on Sedum lineare growth and pollutant removal from the stormwater runoff was analyzed and the runoff quality index (RQI) was calculated. Results showed that the relative growth rate of S. lineare height in system B with 10% soda residue soil was about 21.5–53.2% higher than the other systems. The outflow of system B with 10% soda residue soil had the lowest mass concentration of NH4+-N and TN, which were 2.2, 3.2 mg/L, respectively. The average repetitive rainfall retention rate of system A without soda residue soil was the lowest at 82.6%. System B had the highest RQI at about 0.71. It confirmed that soda residue soil can be a material with practical application value, and when the volume ratio of peat soil, coconut bran, perlite, and soda residue soil was 4:3:2:1, the green roof would have the best performance in regulating and purifying the initial rainwater runoff.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140743638","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

Integrated assessment of groundwater contamination: A multi-marker approach for comprehensive water quality monitoring 地下水污染综合评估：综合水质监测的多标记方法

Water Supply Pub Date : 2024-04-04 DOI: 10.2166/ws.2024.065

Asima Zehra, S. Kaur, J. Gill, Randhir Singh

{"title":"Integrated assessment of groundwater contamination: A multi-marker approach for comprehensive water quality monitoring","authors":"Asima Zehra, S. Kaur, J. Gill, Randhir Singh","doi":"10.2166/ws.2024.065","DOIUrl":"https://doi.org/10.2166/ws.2024.065","url":null,"abstract":"\u0000 \u0000 This study investigated the presence of adenoviral markers (Library-Independent microbial source tracking tool) in the groundwater of Ludhiana, Punjab, India, a hitherto unexplored area. While deep aquifers post-chlorination were adenovirus free, shallow aquifers near farm wastewater pits exhibited human adenovirus and bovine adenovirus. Coliform-negative samples also harboured pathogens, highlighting the limitations of conventional indicators. Surface water displayed higher viral contamination, potentially impacting groundwater. The use of farm wastewater for irrigation and open pit disposal emerged as key contributors, advocating for sustainable wastewater management. Physiochemical and microbial analyses revealed variations across sites, emphasizing regional and temporal variations. The weighted arithmetic water quality index ranged from good to very poor, with deep aquifers showing better quality than shallow ones. A novel approach incorporating graphical representations of adenovirus estimations alongside water quality index provided a more comprehensive understanding. Intriguingly, the study revealed the presence of coliforms irrespective of water quality grade, questioning its reliability as a sole indicator. Correlations between specific water quality grades and adenovirus types suggested targeted control measures. The lack of significant correlations between viral markers and conventional parameters in groundwater compared to surface water studies highlighted the unique dynamics of groundwater contamination.","PeriodicalId":509977,"journal":{"name":"Water Supply","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140741855","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