Water Security最新文献_第5页

Experiments and geochemical modelling of arsenic interaction with clay-dominated soil from Rupnagar district of Punjab, India 砷与印度旁遮普鲁普纳格尔地区粘土土相互作用的实验和地球化学模拟

Water Security Pub Date : 2023-08-01 DOI: 10.1016/j.wasec.2023.100139

Hafsa Nazir, Vijay A. Loganathan

{"title":"Experiments and geochemical modelling of arsenic interaction with clay-dominated soil from Rupnagar district of Punjab, India","authors":"Hafsa Nazir, Vijay A. Loganathan","doi":"10.1016/j.wasec.2023.100139","DOIUrl":"10.1016/j.wasec.2023.100139","url":null,"abstract":"<div><p>The present study investigates the interaction of the soil in Garhbaga village, located in the Rupnagar district of Punjab, India for As(V) adsorption under the influence of pH, contact time and varying arsenic concentrations. To understand the geochemical controls of arsenic mobilization in the region, batch sorption experiments were performed using soil obtained from arsenic contaminated district of Punjab. This study presents a novel approach by employing surface complexation models (SCMs) to investigate arsenic adsorption onto natural soils in the Punjab region, which has not been explored in previous literature. Furthermore, a comparison between Fe-based models, assuming ferrihydrite binding, and general composite (GC) approach, assuming adsorption on soil component surfaces, has not been conducted before, adding to the originality of this research. The adsorption kinetic experiment indicates about 70% adsorption of As(V) in about 4 h. The results of batch isotherm experiment shows that As(V) adsorption saturation onto the soil is reached at an aqueous concentration of about 0.89 mgL<sup>−1</sup>. The results of the pH edges study shows a maximum As(V) adsorption of 93.88% at a pH of 4. The Langmuir’s isotherm was the best fitted because the value of linear regression coefficient (R<sup>2</sup> = 0.997) which verifies the monolayer adsorption of As(V). It was observed that the pseudo first order model best fitted for explaining the kinetic of As(V) adsorption onto the soil because it showed higher value of linear regression coefficient (R<sup>2</sup> = 0.995). Further, three different diffused layer models under varied assumptions were used to capture the batch experimental results. The surface complexation model with general-composite (GC) approach fairly predicted the experimental results when compared to Fe-oxide based models. The GC model was able to capture the observed experimental results for adsorption isotherm and pH edges for the soil within reasonable RMSE of 6.22 % and 7.97 %, respectively.</p></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"19 ","pages":"Article 100139"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44184502","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: 1

Informing watershed management in data-scarce Indian Himalayas 为数据匮乏的印度喜马拉雅山脉流域管理提供信息

Water Security Pub Date : 2023-08-01 DOI: 10.1016/j.wasec.2023.100138

Bhargabnanda Dass , Denzil Daniel , Nishant Saxena , Anita Sharma , Debashish Sen , Sumit Sen

引用次数: 2

Dynamic flood frequency analysis for west flowing rivers of Kerala, India 印度喀拉拉邦西流河流的动态洪水频率分析

Water Security Pub Date : 2023-08-01 DOI: 10.1016/j.wasec.2023.100137

Meera G. Mohan, S. Adarsh

{"title":"Dynamic flood frequency analysis for west flowing rivers of Kerala, India","authors":"Meera G. Mohan, S. Adarsh","doi":"10.1016/j.wasec.2023.100137","DOIUrl":"10.1016/j.wasec.2023.100137","url":null,"abstract":"<div><p>Conventional Flood Frequency Analysis (FFA) may underestimate flood quantiles and increase hydraulic infrastructure vulnerability in changing climates. This study uses annual maximum streamflow data from 17 hydrologic stations along west-flowing rivers in Kerala, India, for Non-Stationary (NS) FFA. The Generalized Extreme Value model with a linear temporal location parameter worked effectively for five stations. Kidangoor and Pattazhy stations must account for non-stationarity for longer return periods (RPs) (>50 years), whereas Neeleeswaram and Perumannu stations must for shorter RPs (<50 years). An extensive study was conducted for Neeleswaram station (Periyar basin) by simulating NS models incorporating four large-scale climate oscillations as covariates. The stationary assumption underestimated flood return levels of 2-year RP by about 61% which increases the flood risk leading to failure of hydraulic infrastructures. It was observed that the best fitted climate-based NS model achieves stationary return level of 150-years RP at 25-years RP itself. The study proved that the climate-based NS models captured the 2018 August Floods in Periyar basin better than stationary and time-based models. The regional variability in FF curve behaviour concludes that NSFFA for Kerala cannot be generalised and must be done at a local-scale.</p></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"19 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49020411","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: 1

A review of recent advances in urban flood research 城市洪水研究进展综述

Water Security Pub Date : 2023-08-01 DOI: 10.1016/j.wasec.2023.100141

Candace Agonafir , Tarendra Lakhankar , Reza Khanbilvardi , Nir Krakauer , Dave Radell , Naresh Devineni

引用次数: 0

Release of geogenic fluoride from contaminated soils of Rajasthan, India: Experiments and geochemical modeling 印度拉贾斯坦邦受污染土壤中地源氟化物的释放:实验和地球化学模拟

Water Security Pub Date : 2023-08-01 DOI: 10.1016/j.wasec.2023.100140

Bhawna Thakur, V. Loganathan, Anupma Sharma, Rakesh K. Sharma, A. Parker

引用次数: 0

The impact of climate change on water resources and associated health risks in Bangladesh: A review 气候变化对孟加拉国水资源的影响及相关健康风险：综述

Water Security Pub Date : 2023-04-01 DOI: 10.1016/j.wasec.2023.100133

Amit Hasan Anik , Maisha Binte Sultan , Mahbub Alam , Fahmida Parvin , Mir Mohammad Ali , Shafi M. Tareq

{"title":"The impact of climate change on water resources and associated health risks in Bangladesh: A review","authors":"Amit Hasan Anik , Maisha Binte Sultan , Mahbub Alam , Fahmida Parvin , Mir Mohammad Ali , Shafi M. Tareq","doi":"10.1016/j.wasec.2023.100133","DOIUrl":"10.1016/j.wasec.2023.100133","url":null,"abstract":"<div><p>Bangladesh is increasingly experiencing different challenges from scarce drinking water sources and health risks, explicitly or implicitly attributed to climate change. This systematic bibliographic review manually screened 47 articles under four categories, including Water and health; Climate and water; Climate and health; and Climate, water, and health, from 2010 to 2022. This research is critical for ensuring the availability of safe drinkable water and public health adaptation to climate change in Bangladesh. The findings revealed that cholera, infant diarrhea, pneumonia, dengue, and malaria are prevalent in the vulnerable groups. The present number and distribution of regional healthcare centers demonstrates potable water procedures and medical centers are insufficient relative to demands. Overall, this study revealed several techniques that help guarantee safe potable water, including holding rainwater, pond sand filters, and drinkable water supply. A knowledge-based approach was used to propound an adaptation framework for tackling the impact of changing climate, especially on safe water availability and public health, and also identified six research gaps. This research serves as a roadmap for future scholars, academicians, practitioners, and policymakers and indicates the need for more progress in the database on national climate change research.</p></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"18 ","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47535622","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: 5

Emerging themes and future directions in watershed resilience research 流域恢复力研究的新主题和未来方向

Water Security Pub Date : 2023-04-01 DOI: 10.1016/j.wasec.2022.100132

Fernando Miralles-Wilhelm , John H. Matthews , Nathan Karres , Robin Abell , James Dalton , Shi-Teng Kang , Junguo Liu , Romain Maendly , Nathanial Matthews , Robert McDonald , Raúl Muñoz-Castillo , Boris F. Ochoa-Tocachi , Neera Pradhan , Diego Rodriguez , Kari Vigerstøl , Bregje van Wesenbeeck

{"title":"Emerging themes and future directions in watershed resilience research","authors":"Fernando Miralles-Wilhelm , John H. Matthews , Nathan Karres , Robin Abell , James Dalton , Shi-Teng Kang , Junguo Liu , Romain Maendly , Nathanial Matthews , Robert McDonald , Raúl Muñoz-Castillo , Boris F. Ochoa-Tocachi , Neera Pradhan , Diego Rodriguez , Kari Vigerstøl , Bregje van Wesenbeeck","doi":"10.1016/j.wasec.2022.100132","DOIUrl":"https://doi.org/10.1016/j.wasec.2022.100132","url":null,"abstract":"<div><p>A review of ecological, social, engineering, and integrative approaches to define and apply resilience thinking is presented and comparatively discussed in the context of watershed management. Knowledge gaps are identified through an assessment of this literature and compilation of a set of research questions through stakeholder engagement activities. We derive a proposed research agenda describing key areas of inquiry such as watershed resilience variables and their interactions; leveraging watershed natural properties, processes, and dynamics to facilitate and enable resilience; analytical methods and tools including monitoring, modeling, metrics, and scenario planning, and their applications to watersheds at different spatial and temporal scales, and infusing resilience concepts as core values in watershed adaptive management.</p></div>","PeriodicalId":37308,"journal":{"name":"Water Security","volume":"18 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49734122","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: 3

Assessing compound pluvial-fluvial flooding: Research status and ways forward 雨洪-河流复合洪水评价:研究现状与展望

Water Security Pub Date : 2023-01-01 DOI: 10.1016/j.wasec.2023.100136

Xiaoxiang Guan , Sergiy Vorogushyn , Heiko Apel , Bruno Merz

引用次数: 0

Health implications of coping with water insecurity at the household level 在家庭一级处理用水不安全问题对健康的影响

Water Security Pub Date : 2023-01-01 DOI: 10.1016/j.wasec.2023.100135

Urbanus Wedaaba Azupogo , Meshack Achore , Florence A. Dery , Elijah Bisung

引用次数: 1

Emerging themes and future directions in watershed resilience research 流域恢复力研究的新主题和未来方向

Water Security Pub Date : 2022-12-01 DOI: 10.1016/j.wasec.2022.100132

F. Miralles-Wilhelm, J. Matthews, Nathan Karres, R. Abell, J. Dalton, Shiteng Kang, Junguo Liu, Romain Maendly, N. Matthews, Robert McDonald, Raúl Muñoz-Castillo, B. Ochoa‐Tocachi, N. Pradhan, Kari Vigerstol, Bregje K. van Wesenbeeck

引用次数: 3