Water science and engineering最新文献_第2页

Hydrological responses to permafrost degradation on Tibetan Plateau under changing climate 气候变化下青藏高原冻土退化的水文响应

IF 4

Water science and engineering Pub Date : 2024-04-15 DOI: 10.1016/j.wse.2024.04.002

Xue-gao Chen , Zhong-bo Yu , Hui Lin , Tong-qing Shen , Peng Jiang

{"title":"Hydrological responses to permafrost degradation on Tibetan Plateau under changing climate","authors":"Xue-gao Chen , Zhong-bo Yu , Hui Lin , Tong-qing Shen , Peng Jiang","doi":"10.1016/j.wse.2024.04.002","DOIUrl":"10.1016/j.wse.2024.04.002","url":null,"abstract":"<div><p>The Tibetan Plateau (TP) has undergone significant warming and humidification in recent years, resulting in rapid permafrost degradation and spatiotemporal variations in hydrological processes, such as subsurface water transport, hydrothermal conversion, and runoff generation. Understanding the mechanisms of hydrological processes in permafrost areas under changing climate is crucial for accurately evaluating hydrological responses on the TP. This study comprehensively discusses the permafrost hydrological processes of the TP under changing climate. Topics include climate conditions and permafrost states, subsurface water transport under freeze–thaw conditions, development of thermokarst lakes and hydrothermal processes, and runoff response during permafrost degradation. This study offers a comprehensive understanding of permafrost changes and their hydrological responses, contributing significantly to water security and sustainable development on the TP.</p></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"17 3","pages":"Pages 209-216"},"PeriodicalIF":4.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674237024000486/pdfft?md5=694ccebde1609b67f2443ffe39038146&pid=1-s2.0-S1674237024000486-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140779406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effective removal of fluoride and arsenic from groundwater via integrated biosorption and membrane ultrafiltration 通过综合生物吸附和膜超滤有效去除地下水中的氟和砷

IF 3.7

Water science and engineering Pub Date : 2024-04-04 DOI: 10.1016/j.wse.2024.04.001

Bukke Vani , Mannem Hymavathi , Swayampakula Kalyani , Nivedita Sahu , Sundergopal Sridhar

{"title":"Effective removal of fluoride and arsenic from groundwater via integrated biosorption and membrane ultrafiltration","authors":"Bukke Vani , Mannem Hymavathi , Swayampakula Kalyani , Nivedita Sahu , Sundergopal Sridhar","doi":"10.1016/j.wse.2024.04.001","DOIUrl":"10.1016/j.wse.2024.04.001","url":null,"abstract":"<div><div>Fluoride (F<sup>−</sup>) and arsenic, present as As(III) and As(V), are widespread toxins in groundwater across India, as well as in other countries or regions like Pakistan, China, Kenya, Africa, Thailand, and Latin America. Their presence in water resources poses significant environmental and health risks, including fluorosis and arsenicosis. To address this issue, this study developed an integrated process combining biosorbents and ultrafiltration (UF) for the removal of F<sup>−</sup>, As, and turbidity from contaminated water. Laboratory-scale adsorption experiments were conducted using low-cost biosorbents with different biosorbent dosages, specifically <em>Moringa oleifera</em> seed powder (MSP) and sorghum bicolor husk (SBH), along with sand as a binding medium. F<sup>−</sup> and As concentrations ranging from 2 to 10 mg/L and 3 to 12 mg/L, respectively, were investigated. Biosorbents and their different combinations were tested to determine their efficacy in removing dissolved F<sup>−</sup> and As. The results showed that a blend of 10-g/L MSP with SBH achieved the highest F<sup>−</sup> (97.20%) and As (78.63%) removal efficiencies. Subsequent treatment with a UF membrane effectively reduced turbidity and colloidal impurities in the treated water, achieving a maximum turbidity removal efficiency of 95.40%. Equilibrium kinetic and isotherm models were employed to analyze the experimental data, demonstrating good fit. Preliminary cost analysis indicated that the hybrid technology is economically viable and suitable for the separation of hazardous contaminants from aqueous solutions. This study underscores the potential of inexpensive biosorption technologies in providing clean and safe drinking water, particularly in industrial, rural, and urban areas.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"18 1","pages":"Pages 30-40"},"PeriodicalIF":3.7,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of climate change on Kupang River flow and hydrological extremes in Greater Pekalongan, Indonesia 气候变化对印度尼西亚大北加龙根地区古邦河流量和极端水文现象的影响

IF 3.7

Water science and engineering Pub Date : 2024-03-28 DOI: 10.1016/j.wse.2024.03.005

Fernaldi Gradiyanto, Priyo Nugroho Parmantoro, Suharyanto

{"title":"Impact of climate change on Kupang River flow and hydrological extremes in Greater Pekalongan, Indonesia","authors":"Fernaldi Gradiyanto, Priyo Nugroho Parmantoro, Suharyanto","doi":"10.1016/j.wse.2024.03.005","DOIUrl":"10.1016/j.wse.2024.03.005","url":null,"abstract":"<div><div>Located downstream the Kupang Catchment in Indonesia, Pekalongan faces significant land subsidence issues, leading to severe coastal flooding. This study aimed to assess the impact of climate change on future flow regimes and hydrological extremes to inform long-term water resources management strategies for the Kupang Catchment. Utilizing precipitation and air temperature data from general circulation models in the Coupled Model Intercomparison Project 6 (CMIP6) and employing bias correction techniques, the Soil and Water Assessment Tool (SWAT) hydrological model was employed to analyze climate-induced changes in hydrological fluxes, specifically streamflow. Results indicated a consistent increase in monthly streamflow during the wet season, with a substantial rise of 22.8%, alongside a slight decrease of 18.0% during the dry season. Moreover, both the frequency and severity of extremely low and high flows were projected to intensify by approximately 50% and 70%, respectively, for a 20-year return period, suggesting heightened flood and drought risks in the future. The observed declining trend in low flow, by up to 11%, indicated the potential for long-term groundwater depletion exacerbating the threat of land subsidence and coastal flooding, especially in areas with inadequate surface water management policies and infrastructure.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"18 1","pages":"Pages 69-77"},"PeriodicalIF":3.7,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140401201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ciprofloxacin (CIP)-polluted water treatment via a facile mechanochemical route: Influencing factors and mechanism insights 通过简便的机械化学方法处理环丙沙星 (CIP) 污染的水：影响因素和机理启示

IF 3.7

Water science and engineering Pub Date : 2024-03-16 DOI: 10.1016/j.wse.2024.03.004

Xiao-yi Wang , Cheng-liang Dong , Kun Xu , Ri-long Xiao , Xiu-juan Feng

{"title":"Ciprofloxacin (CIP)-polluted water treatment via a facile mechanochemical route: Influencing factors and mechanism insights","authors":"Xiao-yi Wang , Cheng-liang Dong , Kun Xu , Ri-long Xiao , Xiu-juan Feng","doi":"10.1016/j.wse.2024.03.004","DOIUrl":"10.1016/j.wse.2024.03.004","url":null,"abstract":"<div><div>Degrading ciprofloxacin (CIP)-polluted water has recently emerged as an urgent environmental issue. This study introduced mechanochemical treatment (MCT) as an innovative and underexplored approach for the degradation of CIP in water. The influence of various additives (CaO, Fe<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, Al, and Fe) on CIP degradation efficiency was investigated. Additionally, six types of composite additives (Fe–CaO, Fe–Fe<sub>2</sub>O<sub>3</sub>, Fe–SiO<sub>2</sub>, Fe–Al, Al–SiO<sub>2</sub>, and Al–CaO) were explored, with the composite of 20% Fe and 80% SiO<sub>2</sub> exhibiting notable performance. The impacts of additive content, pH value, and co-existing ions on CIP degradation efficiency were investigated. Furthermore, the effectiveness of MCT in degrading other medical pollutants (norfloxacin, ofloxacin, and enrofloxacin) was verified. The transformations and changes in the crystal structure, oxidation state, microstructure, and morphology of the Fe–SiO<sub>2</sub> composite additive were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy techniques. This study proposed a sigmoid trend kinetic model (the Delogu model) that better elucidates the MCT process. Three plausible degradation pathways were discussed based on intermediate substance identification and pertinent literature. This study not only establishes a pathway for the facile degradation of CIP pollutants through MCT but also contributes to advancements in wastewater treatment methodologies.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"18 1","pages":"Pages 21-29"},"PeriodicalIF":3.7,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140271996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impacts of bed roughness and orientation on hydraulic jump: A review 床面粗糙度和走向对水力跃迁的影响：综述

IF 3.7

Water science and engineering Pub Date : 2024-03-13 DOI: 10.1016/j.wse.2024.03.003

Nishank Agrawal, Ellora Padhi

{"title":"Impacts of bed roughness and orientation on hydraulic jump: A review","authors":"Nishank Agrawal, Ellora Padhi","doi":"10.1016/j.wse.2024.03.003","DOIUrl":"10.1016/j.wse.2024.03.003","url":null,"abstract":"<div><div>Hydraulic jumps are a prevalent phenomenon in flows through spillways, chutes, and sluice gates. As hydraulic jumps exhibit substantial kinetic energy, the downstream of a hydraulic structure is prone to scour. To mitigate downstream scour and enhance energy dissipation, hydraulic jumps are often directed into stilling basins with various bed configurations, including horizontal, sloping, rough, and their combinations. This review compiles numerous analytical and experimental studies on hydraulic jumps under various bed conditions. The effect of bed roughness on sequent depth ratio, roller and jump lengths, shear stress, and energy dissipation is critically reviewed. The impacts of roughness height, flow Froude number, and bed angle on jump characteristics are discussed, substantiated by comparative analyses for distinct roughness heights. The results indicate that bed roughness intensifies shear stress, resulting in augmented energy dissipation and reductions in jump length and sequent depth. Additionally, the analytical and empirical equations proposed by researchers for different jump scenarios are discussed, and their applicability under various conditions is summarized. Finally, it suggests considering the scale effect in future research to refine the comprehension of jump stability over adverse slopes.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"18 1","pages":"Pages 90-101"},"PeriodicalIF":3.7,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140283546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel method for measuring interaction among multiple objectives in reservoir operation using niche theory

IF 3.7

Water science and engineering Pub Date : 2024-03-05 DOI: 10.1016/j.wse.2024.03.002

Xiao-kuan Ni , Zeng-chuan Dong , Wen-hao Jia , Wen-zhuo Wang , Wei Xie , Hong-yi Yao , Mu-feng Chen , Tian-yan Zhang , Zhuo-zheng Li

{"title":"A novel method for measuring interaction among multiple objectives in reservoir operation using niche theory","authors":"Xiao-kuan Ni , Zeng-chuan Dong , Wen-hao Jia , Wen-zhuo Wang , Wei Xie , Hong-yi Yao , Mu-feng Chen , Tian-yan Zhang , Zhuo-zheng Li","doi":"10.1016/j.wse.2024.03.002","DOIUrl":"10.1016/j.wse.2024.03.002","url":null,"abstract":"<div><div>Accurate capture and presentation of the interactive feedback relationships among various objectives in multi-objective reservoir operation is essential for maximizing operational benefits. In this study, the niche theory of ecology was innovatively applied to the field of reservoir operation, and a novel state–relationship (S–R) measurement analysis method was developed for multi-objective reservoir operation. This method enables the study of interaction among multiple objectives. This method was used to investigate the relationship among the objectives of power generation, water supply, and ecological protection for cascade reservoir operation in the Wujiang River Basin in China. The results indicated that the ecological protection objective was the most competitive in acquiring and capturing resources like flow and water level, while the water supply objective was the weakest. Power generation competed most strongly with ecological protection and relatively weakly with water supply. These findings facilitate decision-making throughout the reservoir operation process in the region. The S–R method based on the niche theory is convenient, efficient, and intuitive, allowing for the quantification of feedback relationships among objectives without requiring the solution of the Pareto frontier of a multi-objective problem in advance. This method provides a novel and feasible idea for studying multi-objective interactions.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"18 1","pages":"Pages 78-89"},"PeriodicalIF":3.7,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143419783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel approach for quantifying upper reservoir leakage 量化上层储层渗漏的新方法

IF 3.7

Water science and engineering Pub Date : 2024-03-04 DOI: 10.1016/j.wse.2024.03.001

Wen-jie Yang , Yong Huang , Xiao-song Dong , Xu-feng Zhu , Zhong-bo Yu , Ke-han Miao

{"title":"A novel approach for quantifying upper reservoir leakage","authors":"Wen-jie Yang , Yong Huang , Xiao-song Dong , Xu-feng Zhu , Zhong-bo Yu , Ke-han Miao","doi":"10.1016/j.wse.2024.03.001","DOIUrl":"10.1016/j.wse.2024.03.001","url":null,"abstract":"<div><div>During the operational phases of the upper reservoir in a pumped storage power station, the water level, leakage area, and hydraulic gradient of the upper reservoir alter dynamically due to the cyclic pumping and draining activities. The rising groundwater level during storage introduces distinct leakage conditions within the reservoir basin, characterized by unsaturated, partially saturated, and saturated states. Consequently, reservoir basin leakage exhibits variability across these states. To address this issue, this study formulated rational assumptions corresponding to the three leakage states in a reservoir basin and derived analytical expressions for seepage calculation based on Darcy's law and the principles governing groundwater flow refraction. A case study was conducted to investigate the relationship between various factors and leakage. The results showed that leakage primarily depended on the permeability of the impermeable layer in the reservoir basin. The upper reservoir leakage was estimated, and the calculated leakage generally agreed with the measurements, offering insights into the leakage mechanism of the Liyang pumped storage power station. In addition, the reasons for disparities between measured and calculated leakage were analyzed, and the reliability of the developed method was validated. The findings of this study provide a foundation for the seepage control design of upstream reservoirs in similar projects.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"17 4","pages":"Pages 397-405"},"PeriodicalIF":3.7,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Health diagnosis of ultrahigh arch dam performance using heterogeneous spatial panel vector model 利用异质空间面板向量模型对超高拱坝性能进行健康诊断

IF 4

Water science and engineering Pub Date : 2024-02-28 DOI: 10.1016/j.wse.2024.02.003

Er-feng Zhao , Xin Li , Chong-shi Gu

{"title":"Health diagnosis of ultrahigh arch dam performance using heterogeneous spatial panel vector model","authors":"Er-feng Zhao , Xin Li , Chong-shi Gu","doi":"10.1016/j.wse.2024.02.003","DOIUrl":"https://doi.org/10.1016/j.wse.2024.02.003","url":null,"abstract":"<div><p>Currently, more than ten ultrahigh arch dams have been constructed or are being constructed in China. Safety control is essential to long-term operation of these dams. This study employed the flexibility coefficient and plastic complementary energy norm to assess the structural safety of arch dams. A comprehensive analysis was conducted, focusing on differences among conventional methods in characterizing the structural behavior of the Xiaowan arch dam in China. Subsequently, the spatiotemporal characteristics of the measured performance of the Xiaowan dam were explored, including periodicity, convergence, and time-effect characteristics. These findings revealed the governing mechanism of main factors. Furthermore, a heterogeneous spatial panel vector model was developed, considering both common factors and specific factors affecting the safety and performance of arch dams. This model aims to comprehensively illustrate spatial heterogeneity between the entire structure and local regions, introducing a specific effect quantity to characterize local deformation differences. Ultimately, the proposed model was applied to the Xiaowan arch dam, accurately quantifying the spatiotemporal heterogeneity of dam performance. Additionally, the spatiotemporal distribution characteristics of environmental load effects on different parts of the dam were reasonably interpreted. Validation of the model prediction enhances its credibility, leading to the formulation of health diagnosis criteria for future long-term operation of the Xiaowan dam. The findings not only enhance the predictive ability and timely control of ultrahigh arch dams’ performance but also provide a crucial basis for assessing the effectiveness of engineering treatment measures.</p></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"17 2","pages":"Pages 177-186"},"PeriodicalIF":4.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674237024000255/pdfft?md5=4f4632dcc8091681a18a89d50976098f&pid=1-s2.0-S1674237024000255-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140330692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Big data-driven water research towards metaverse 大数据驱动的水研究迈向元宇宙

IF 4

Water science and engineering Pub Date : 2024-02-13 DOI: 10.1016/j.wse.2024.02.001

Minori Uchimiya

引用次数: 0

Hydraulic performance assessment of various submerged pile designs around an emerged dike 出露堤坝周围各种水下桩设计的水力性能评估

IF 3.7

Water science and engineering Pub Date : 2024-02-10 DOI: 10.1016/j.wse.2024.02.002

{"title":"Hydraulic performance assessment of various submerged pile designs around an emerged dike","authors":"","doi":"10.1016/j.wse.2024.02.002","DOIUrl":"10.1016/j.wse.2024.02.002","url":null,"abstract":"<div><div>This study aimed to devise strategies for alleviating the detrimental impacts of floods in the vicinity of a dike. Experiments were conducted in an open rectangular channel to investigate the flow dynamics under varying dike conditions. To address concerns related to intense whirls and concentrated flow around the dike head, comparative analysis was performed in terms of flow structures and energy reduction around I-shaped and T-shaped dikes with two ratios of wing length (<em>l</em><sub>w</sub>) to dike length (<em>l</em><sub>d</sub>) (<em>l</em><sub>w</sub>/<em>l</em><sub>d</sub> = 1.41 and 2.43). The T-shaped dike wings were equipped with diverse designs: angled footing, delta vane, and streamlined tapered, resulting in elevated backwater in front of the dike, reduced velocity, and enhanced energy reduction. The findings indicated that elongating the wing reciprocally affected the depth-averaged velocity (at the dike head and near the adjacent dike bank), concurrently impacting flow deflection, backwater rise, and energy reduction rate. The T-shaped dike, specifically with an angled footing (<em>l</em><sub>w</sub>/<em>l</em><sub>d</sub> = 2.43), yielded optimal outcomes. These included significant reductions in maximum energy (46%), tip velocity (98%), and dike adjacent bank velocity (90%), as well as significant flow deflection towards the mainstream, outperforming the I-shaped impermeable dike. The proposed solutions exhibit efficacy in mitigating rapid deterioration during floods, securing both the dike head and the neighboring bank to avert failures in high-energy flow.</div></div>","PeriodicalId":23628,"journal":{"name":"Water science and engineering","volume":"17 4","pages":"Pages 406-416"},"PeriodicalIF":3.7,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139818838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0