Journal of contaminant hydrology最新文献

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Cellulose –Polyvinylalcohol supported magnetic nanocomposites from lentil husk for sequestration of cationic dyes from the aqueous solution: Kinetics, isotherm and reusability studies 从扁豆壳中分离阳离子染料的纤维素-聚乙烯醇磁性纳米复合材料:动力学、等温线和可重用性研究。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2025.104503
Afsana Khatoon , Shaziya Siddiqui , Nazrul Haq
{"title":"Cellulose –Polyvinylalcohol supported magnetic nanocomposites from lentil husk for sequestration of cationic dyes from the aqueous solution: Kinetics, isotherm and reusability studies","authors":"Afsana Khatoon ,&nbsp;Shaziya Siddiqui ,&nbsp;Nazrul Haq","doi":"10.1016/j.jconhyd.2025.104503","DOIUrl":"10.1016/j.jconhyd.2025.104503","url":null,"abstract":"<div><div>The study emphasize on the synthesis of eco-friendly cellulose based magnetic nanocomposite derived from <em>Lens cullnaris</em> husk and Poly Vinyl Alcohol (Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA) for the adsorption of Crystal Violet, Methylene Blue and Malachite Green Dye. The structural and functional morphology was determined by SEM-EDAX analysis and FTIR. The crystalline of Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA was analyzed by XRD and pore size was determined by BET. The surface area of nanocellulose Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA was found to be 22.308 m<sup>2</sup>/g and the pore volume of 0.074cm<sup>3</sup>/g. The Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA nanocomposites show successful adsorption of CV, MB and MG in 120 min equilibrium time at pH 7 for CV and 8 for MB and MG respectively. The Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA nanocomposites was best fitted Langmuir isotherm and follows pseudo 2nd order kinetics with intra particle as rate controlling mechanism. The nanocellulose Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA composite shows good monolayer adsorption capacity in the order of CV(357 mg/g) &gt; MB(112.35 mg/g) &gt; MG(111.11 mg/g). Thermodynamic study reveals the process is endothermic and spontaneous in nature with ΔG<sup>0</sup> value less than 20KJ mol<sup>−1</sup> at respective temperatures indicating Physiosorption. The nano-cellulose Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA composite can be effectively desorb dyes by 0.1 M NaOH. The nanocellulose Fe<sub>3</sub>O<sub>4</sub>@LENT/PVA composite proves to be an effective adsorbent showing regeneration ability upto five times for all the dyes.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104503"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143074354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A mini review of recent advances in environmentally friendly microplastic removal technologies in water systems 水系统中环保型微塑料去除技术最新进展小结。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104485
Seung Hyeon Lee, Sang-Jun Han, Jung-Ho Wee
{"title":"A mini review of recent advances in environmentally friendly microplastic removal technologies in water systems","authors":"Seung Hyeon Lee,&nbsp;Sang-Jun Han,&nbsp;Jung-Ho Wee","doi":"10.1016/j.jconhyd.2024.104485","DOIUrl":"10.1016/j.jconhyd.2024.104485","url":null,"abstract":"<div><div>The current increase in microplastic (MP) occurrence worldwide is predicted to cause severe environmental crises in the future. Therefore, it is imperative to develop innovative MP removal technologies that can effectively mitigate MP emissions in any given scenario. This review discusses recent environmentally friendly advances in MP removal technologies that aim to overcome the limitations of current technologies, prevent secondary pollution, and utilize low energy. It also explores the potential applicability of these technologies under the current environmental conditions in South Korea. The core principles of these technologies, such as adsorption or flocculation, focus on minimizing the energy required to initiate and sustain these processes and on reducing the usage of adsorbents and flocculants. Employing microalgae as flocculants and triboelectricity for electrophoresis are identified as promising technologies. Incinerating MP-adsorbed materials from the process could be a viable disposal method, potentially serving as a source of heat energy. Consequently, technologies based on biochar or microalgae are especially advantageous in this context. The location where these technologies are applied plays a crucial role in their overall energy consumption. Ideally, implementation should occur as close as possible to points where MPs are found or within wastewater treatment plants. Froth flotation, microalgae flocculation, and triboelectricity-based electrophoresis are suitable methods in this regard. Establishing and enforcing administrative systems, laws, and policies globally to prevent MP occurrence remains critical. However, while these measures are vital, the most effective method for reducing MP occurrence is lowering plastic consumption alongside implementing stringent segregation and collection procedures.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104485"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First evidence of microplastics in the Quilca-Vítor-Chili river basin, Arequipa region, Peru 秘鲁阿雷基帕地区Quilca-Vítor-Chili河流域微塑料的第一个证据。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104484
Adriana E. Larrea Valdivia , Juan Reyes Larico , Carlos Valenzuela Huillca , Andrés H. Arias
{"title":"First evidence of microplastics in the Quilca-Vítor-Chili river basin, Arequipa region, Peru","authors":"Adriana E. Larrea Valdivia ,&nbsp;Juan Reyes Larico ,&nbsp;Carlos Valenzuela Huillca ,&nbsp;Andrés H. Arias","doi":"10.1016/j.jconhyd.2024.104484","DOIUrl":"10.1016/j.jconhyd.2024.104484","url":null,"abstract":"<div><div>The Chili, Vitor and Quilca rivers and their tributaries in Peru serve as a vital water resource for both irrigation and domestic use in the surrounding communities and agricultural areas. The purpose of this study was to establish, for the first time, the presence, abundance, distribution and chemical identity of polymer microparticles in aqueous samples from these river basins. The results showed that, on average, filaments were the most dominant (71.4 %), followed by fragments (17.2 %) and film (6.74 %). Identification of the polymer types revealed that the most abundant type of MPs is polyethylene (40.8 %), followed by polypropylene (23.8 %), synthetic fibres (15.8 %), and other synthetic polymers. All samples showed the occurrence of microplastics, with a mean concentration of 35.34 MPs/m<sup>3</sup>, a maximum value of 172.70 MPs/m<sup>3</sup> and a minimum value of 3.59 MPs/m<sup>3</sup>. The results reported in this study establish a baseline for the study area for the first time; in addition, the areas were established with a Pollution Indicator, and the Pollutant Load Index (PLI) was calculated, which reinforced the proposed identification, alerting the need to control clandestine urban and rural landfills, as well as the indiscriminate use of PE big bags in the agricultural catchment.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104484"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142854296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic transformation and leaching processes of nitrogen in a karst agricultural soil under simulated rainfall conditions 模拟降雨条件下喀斯特农业土壤氮素动态转化及淋溶过程
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104494
Ping Zhang , Fu-Jun Yue , Xiao-Dan Wang , Sai-Nan Chen
{"title":"Dynamic transformation and leaching processes of nitrogen in a karst agricultural soil under simulated rainfall conditions","authors":"Ping Zhang ,&nbsp;Fu-Jun Yue ,&nbsp;Xiao-Dan Wang ,&nbsp;Sai-Nan Chen","doi":"10.1016/j.jconhyd.2024.104494","DOIUrl":"10.1016/j.jconhyd.2024.104494","url":null,"abstract":"<div><div>Frequent exchange of surface water and groundwater in karst agricultural areas results in soil nutrient loss during rainfall and consequent deterioration of the aquatic environment. To understand nitrogen (N) transformation and leaching processes from karst soil during rainfall events, two typical N fertilizers were added to karst soil and consequently investigated the nitrogenous species using soil column experiments system. The contents of various N forms in the soil and leachate were analyzed, and the net nitrification and the N leaching rates were calculated. The results revealed that NH<sub>4</sub><sup>+</sup> and NO<sub>2</sub><sup>−</sup> accumulation and variation occurred primarily in shallow soils, indicating that shallow soils were the primary sites for ammonification and nitrification processes. The net nitrification rate in the soil was higher with application of urea (12.5 mg N kg<sup>−1</sup>d<sup>−1</sup>) than with manure (2.4 mg N kg<sup>−1</sup>d<sup>−1</sup>). Peak N content indicated that it took only 7 days for N to migrate from the topsoil to 90 cm depth of soil after applying urea during successive intense rainfall events. NO<sub>3</sub><sup>−</sup> leaching was predominantly composed of N, followed by DON, with leaching ratios of 31.1 % for the urea column and only 1.7 % for the manure column. These results highlight that the rapid nitrification of urea application coupled with intensive rainfall accelerated nitrate leaching into subterraneous streams in karst hydrological system, supporting a significant contribution from agricultural fertilizer loss during rainfall in karst area.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104494"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142927309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of sub-boiling temperatures on mass transfer from former manufactured gas plant residuals 亚沸点温度对原制气厂渣油传质的影响。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2025.104508
Yunxiao Wei , Kevin G. Mumford , Neil R. Thomson , Shupeng Li , Guanlin Guo , Tianxiang Xia , Peng Liu
{"title":"The effect of sub-boiling temperatures on mass transfer from former manufactured gas plant residuals","authors":"Yunxiao Wei ,&nbsp;Kevin G. Mumford ,&nbsp;Neil R. Thomson ,&nbsp;Shupeng Li ,&nbsp;Guanlin Guo ,&nbsp;Tianxiang Xia ,&nbsp;Peng Liu","doi":"10.1016/j.jconhyd.2025.104508","DOIUrl":"10.1016/j.jconhyd.2025.104508","url":null,"abstract":"<div><div>The dissolution of polycyclic aromatic hydrocarbons (PAHs) from coal tar at former manufactured gas plant (FMGP) sites is a long-term threat to groundwater quality. The dissolution rate is often limited by an increase in the viscosity of the non-aqueous phase liquid (NAPL) as the lower molecular weight compounds are depleted over time, and this slow mass transfer prevents the effective application of remediation technologies that rely on NAPL-to-water mass transfer to remove or degrade mass. Increasing subsurface temperatures has the potential to increase mass transfer at FMGP sites by increasing PAH solubility and reducing NAPL viscosity. This study investigated the mass transfer of PAH compounds from a synthetic NAPL mixture and FMGP residual at 25, 50 and 80 °C using well-mixed batch experiments. Effective solubilities increased by up to an order of magnitude and mass transfer rate coefficients increased by up to a factor of 45. Enhancements were greater for higher molecular weight compounds, and for the more complex FMGP NAPL compared to the synthetic mixture due to a more substantial decrease in NAPL viscosity. Simulations using a screening-level model demonstrated the potential for sub-boiling temperature to increase NAPL mass removal at FMGP sites, with increases in concentration up to a factor of seven, and 6 to 87 % of mass remaining after heating to 80 °C for 120 days compared to 25 °C.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104508"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143065998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Establishing a silica gel zone in well annulus and evaluating its performance in blocking vertical water flow 在井环空建立硅胶层,并评价其阻断垂向水流的效果
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2025.104510
Lirong Zhong, Jonathan N. Thomle, Rob D. Mackley, Zoe G. Vincent, Frederick D. Day-Lewis
{"title":"Establishing a silica gel zone in well annulus and evaluating its performance in blocking vertical water flow","authors":"Lirong Zhong,&nbsp;Jonathan N. Thomle,&nbsp;Rob D. Mackley,&nbsp;Zoe G. Vincent,&nbsp;Frederick D. Day-Lewis","doi":"10.1016/j.jconhyd.2025.104510","DOIUrl":"10.1016/j.jconhyd.2025.104510","url":null,"abstract":"<div><div>Wells are often constructed for monitoring purposes with relatively long screen lengths (e.g., &gt;10 m). Vertical water flows can occur within the artificial or natural filter pack annulus that surround the screened interval, bypassing packer assemblies installed inside the wellbore. Attempts to isolate discrete vertical zones during groundwater sampling are unsuccessful when annular vertical flow occurs which lead to remedy decisions based on biased or incorrect interpretations. Blocking vertical annular water flow and contaminant transport will help obtain more accurate concentrations of contaminants from sampling in targeted depth intervals. The application of silica gels formed from the injected colloidal silica (CS) suspensions is a novel approach to minimize or prevent vertical movement of groundwater in the surrounding filter pack annulus. In this study, we tested the feasibility of injecting CS suspensions to target locations and developed a modified CS formulation that is injectable and prevents gravity sinking. We studied the spatial distribution and penetration of silica gel at laboratory scale in model well annulus with surrounding formations. We evaluated the performance of the silica gel in blocking vertical water flow in the annulus and in minimizing chemical transport through the gel zone. CS suspension formulations have been defined that are ready for injection, persist in target locations, and form gel within desired time frames. Injection of CS suspensions achieved uniform distribution in a well annulus filter pack, fully occupied the annulus pore space, and penetrated the formation surrounding the filter packer with a sufficient distance to create a hydraulic annular seal when the injection was applied at a sufficient rate. Silica gel that formed in the annulus blocked vertical water flow and stopped the chemical transport through the gel zone. This research reveals that using CS suspension injection and sequential gelation (CS-GEL) is a promising technology for blocking vertical water flow and chemical transport through the filter pack in targeted zones within the annulus of long-screened well systems.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104510"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143369821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization and risk assessment of microplastics pollution in Mohamaya Lake, Bangladesh 孟加拉国莫哈玛雅湖微塑料污染的特征和风险评估。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104487
Mohammed Manik , Md. Tauhid Hossain , Paolo Pastorino
{"title":"Characterization and risk assessment of microplastics pollution in Mohamaya Lake, Bangladesh","authors":"Mohammed Manik ,&nbsp;Md. Tauhid Hossain ,&nbsp;Paolo Pastorino","doi":"10.1016/j.jconhyd.2024.104487","DOIUrl":"10.1016/j.jconhyd.2024.104487","url":null,"abstract":"<div><div>Microplastics (MPs) have recently gained attention as emerging environmental contaminants, yet knowledge of their distribution, sources, and risks in freshwater lakes remains limited. This study examined the occurrence and risk of MPs in water and sediment samples from eight locations in Mohamaya Lake (Bangladesh) collected in April and May 2023. MPs were identified using stereomicroscopy and FTIR, revealing concentrations of 20–95 particles/L in water and 550–1900 particles/kg (d.w.) in sediment, with mean values of 50.62 ± 9.95 particles/L and 1068.75 ± 521.49 particles/kg (d.w.). Dominant MPs were blue fibers, 0–0.5 mm in size, with HDPE, PET and LDPE as the most common polymers. This study used four indices (nemerow pollution index-NPI, contamination factor-CF, pollution load index-PLI, and polymer hazard index-PHI) to assess MP pollution, revealing light to high contamination levels. While NPI indicated light pollution, CF, PLI, and PHI highlighted areas of moderate to high risk, with certain polymers showing high to extreme toxicity. This study deepens understanding of MP contamination in Bangladesh's freshwater lakes, underscoring the need for research on ecotoxicology, regulation, and associated challenges.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104487"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aging-mediated selective adsorption of antibiotics by tire wear particles: Hydrophobic and electrostatic interactions effects 老化介导的轮胎磨损颗粒对抗生素的选择性吸附:疏水和静电相互作用效应。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104482
Jiale Xu , Yuting Zhang , Shaoxin Zi , Xuanqi Zhang , Zhengtong Qian , Jin Liu
{"title":"Aging-mediated selective adsorption of antibiotics by tire wear particles: Hydrophobic and electrostatic interactions effects","authors":"Jiale Xu ,&nbsp;Yuting Zhang ,&nbsp;Shaoxin Zi ,&nbsp;Xuanqi Zhang ,&nbsp;Zhengtong Qian ,&nbsp;Jin Liu","doi":"10.1016/j.jconhyd.2024.104482","DOIUrl":"10.1016/j.jconhyd.2024.104482","url":null,"abstract":"<div><div>Tire wear particles (TWPs), as a prevalent form of microplastic pollution in aquatic environments, have been shown to adsorb antibiotics, potentially exacerbating their toxic effects. This study provides a comprehensive analysis of the adsorption of ofloxacin (OFL), ciprofloxacin (CIP), sulfadiazine (SDZ), and tetracycline (TC) on TWPs that have undergone various aging processes, including cyclic freeze-thaw and ozone aging. We observed a significant increase in the specific surface area (SBET) of TWPs after aging, from an initial 2.81 ± 0.29 to 6.63 ± 0.16 m<sup>2</sup>/g for ozone-aged TWPs. This enhancement in surface area and pore volume led to a respective 1.36-fold and 28-fold increase in adsorption capacity for OFL and CIP, highlighting the substantial impact of aging on TWPs' adsorptive properties. Conversely, the adsorption of SDZ and TC was reduced post-aging, suggesting a complex interaction between antibiotic physicochemical properties and TWPs' surface characteristics. The pseudo-second-order model, indicating chemisorption interactions, effectively described the adsorption kinetics, with the Freundlich isotherm model capturing the adsorption behavior more accurately than the Langmuir model. Our findings underscore the critical role of hydrophobic and electrostatic interactions in the adsorption process, particularly for SDZ and TC. This study's results offer crucial insights into the environmental implications of TWPs, emphasizing the need for further research on their role in the transport and fate of antibiotics in aquatic ecosystems.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104482"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A modelling framework to analyze climate change effects on radionuclide aquifer contamination 分析气候变化对放射性核素含水层污染影响的模拟框架。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2024.104470
Thomas Matteo Coscia , Francesco Di Maio , Enrico Zio
{"title":"A modelling framework to analyze climate change effects on radionuclide aquifer contamination","authors":"Thomas Matteo Coscia ,&nbsp;Francesco Di Maio ,&nbsp;Enrico Zio","doi":"10.1016/j.jconhyd.2024.104470","DOIUrl":"10.1016/j.jconhyd.2024.104470","url":null,"abstract":"<div><div>Non-stationarity of climatic variables (e.g., temperature and precipitation) due to Climate Change (CC) can affect the migration processes of radionuclides released from nuclear activities. In this paper, a framework of analysis is developed to predict the evolution in time of contaminant concentration and fluence under different Climatic Boundary Conditions (CBCs) of precipitation scenarios provided by a climate model integrated with an accurate physical coupled hydraulic-transport model. A case study is worked out with respect to the migration of a radioactive contaminant (<sup>232</sup>Th) at Kirtland Air Force Base (Albuquerque, New Mexico, USA), for which the different CBCs considered are: <em>i</em>) stationary and <em>ii</em>) non-stationary precipitation. The effects of such alternative hypotheses on the physical modelling results are analysed, using a cross-wavelet analysis. It is shown that fluence is strongly affected by precipitation extremes, more than concentration, and it is claimed that a daily scale on the information and data of CBCs is necessary to model, with sufficient accuracy, the migration process and properly assess the impact of future CC on groundwater contamination.</div></div>","PeriodicalId":15530,"journal":{"name":"Journal of contaminant hydrology","volume":"269 ","pages":"Article 104470"},"PeriodicalIF":3.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142789525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantification of denitrification rate in shallow groundwater using the single-well, push-pull test technique 用单井推拉试验技术定量测定浅层地下水的反硝化速率。
IF 3.5 3区 环境科学与生态学
Journal of contaminant hydrology Pub Date : 2025-02-01 DOI: 10.1016/j.jconhyd.2025.104500
Aldrin Rivas , Ranvir Singh , David Horne , Jonathan Roygard , Abby Matthews , Michael Hedley
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