Water Cycle最新文献_第7页

Integrated analysis of using high-value microalgae for tetracycline treatment with biomass utilization: Responses, removal pathway, physiological and metabolomic characterization 生物质利用高价值微藻处理四环素的综合分析：反应、去除途径、生理和代谢组学表征

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-05-08 DOI: 10.1016/j.watcyc.2025.05.001

Yaqian Yuan , Zeyuan Wang , Ganlin Hu , Yu Hong

{"title":"Integrated analysis of using high-value microalgae for tetracycline treatment with biomass utilization: Responses, removal pathway, physiological and metabolomic characterization","authors":"Yaqian Yuan , Zeyuan Wang , Ganlin Hu , Yu Hong","doi":"10.1016/j.watcyc.2025.05.001","DOIUrl":"10.1016/j.watcyc.2025.05.001","url":null,"abstract":"<div><div>Antibiotic-contaminated wastewater poses serious threats to the ecological environment. While using microalgae for antibiotic removal has been extensively studied, this study provides a comprehensive and integrated analysis of the physiological and metabolic response mechanisms of <em>Chlorella</em> sp. HL to tetracycline (TC). The results showed that <em>Chlorella</em> sp. HL exhibited strong TC resistance and high removal efficiencies (98.63–99.95%). Low TC concentrations (<10 mg/L) promoted microalgal growth, while higher concentrations (>20 mg/L) inhibited its growth. Pigment contents (chlorophyll <em>a</em>, chlorophyll <em>b</em>, and carotenoids) generally increased under the stimulation of TC, except for carotenoids at 1 mg/L TC. The photosynthetic activity of <em>Chlorella</em> sp. HL was significantly affected, and it was reduced at higher concentrations of TC. Antioxidant enzyme activities and malondialdehyde (MDA) content increased with TC concentration, indicating TC could cause oxidative stress. In addition, TC altered the high-value substance contents of <em>Chlorella</em> sp. HL, with protein and lipid contents initially declining but subsequently increasing, while polysaccharide content gradually rose. Metabolomic analysis indicated that <em>Chlorella</em> sp. HL responded to TC stress by regulating carbohydrate metabolism and other pathways. This study provides an integrated analysis of the physiological, biochemical, and metabolomic responses of microalgae to TC. This comprehensive analysis provides new insights into how microalgae adapt to and mitigate TC stress, and especially revealing its metabolic response mechanism to TC. In addition, the potential for utilizing microalgal biomass for high-value products production when removing antibiotics has been investigated. This dual focus on bioremediation and resource production is a novel research direction.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 440-448"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144312864","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

The spatial-temporal changes in water balance components under future climate change in the Gorganroud Watershed, Iran 未来气候变化下伊朗Gorganroud流域水平衡成分的时空变化

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-02-18 DOI: 10.1016/j.watcyc.2025.02.003

Ghorbani Hossein , Akbari Azirani Tayebeh , Entezari Alireza , Baaghideh Mohammad

{"title":"The spatial-temporal changes in water balance components under future climate change in the Gorganroud Watershed, Iran","authors":"Ghorbani Hossein , Akbari Azirani Tayebeh , Entezari Alireza , Baaghideh Mohammad","doi":"10.1016/j.watcyc.2025.02.003","DOIUrl":"10.1016/j.watcyc.2025.02.003","url":null,"abstract":"<div><div>The quantitative assessment of water balance components is crucial for sustainable management of watersheds. These components have been affected by climate change over the recent years across the world, specifically in semi-arid regions like Iran. This study aims to evaluate the effects of future climate change on the hydrological components in the Gorganroud watershed, northern Iran. In this regard, the Soil and Water Assessment Tool (SWAT) was calibrated and validated to simulate hydrological processes under future climate conditions. We also used the outputs from a Coupled Model Intercomparison Project Phase 9 (CMIP6) climate model to project future climate variables for 2025–2054 and 2071–2100 periods. The Quantile Mapping (QM) method was applied to remove the systematic biases in the simulated climate datasets. Our findings indicate that (1) minimum and maximum temperature will likely rise up to 3.3 °C and 4.3 °C, respectively, during 2071–2100 compared to the baseline of 1985–2014 under SSP585, (2) precipitation is predicted to increase up to 5.6% under SSP245, while it is expected to decrease up to 5% under the SSP585 in 2071-2100compared to the baseline, (3) in response to climate change, the study area will see a reduction in surface runoff, base flow, and lateral flow up to 7.7%, 13% and 10.2%, respectively, and an increase in evapotranspiration up to 11%) until the end of the century, (4) spatial analysis indicates that the eastern, southeastern, and northern regions of the watershed are projected to experience the most significant declines in hydrological components, with changes up to 50%. These results highlight could provide valuable information for decision and policy-makers to adaptively manage and plan strategies in the future for the Gorganroud watershed.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 319-334"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936063","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

Enhanced adsorption and photocatalytic degradation of organics using La-doped g-C3N4 with Ag NPs Ag纳米粒子增强la掺杂g-C3N4对有机物的吸附和光催化降解

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-01-30 DOI: 10.1016/j.watcyc.2025.01.002

Kingsley Igenepo John, Touma B. Issa, Goen Ho, Aleksandar N. Nikoloski, Dan Li

{"title":"Enhanced adsorption and photocatalytic degradation of organics using La-doped g-C3N4 with Ag NPs","authors":"Kingsley Igenepo John, Touma B. Issa, Goen Ho, Aleksandar N. Nikoloski, Dan Li","doi":"10.1016/j.watcyc.2025.01.002","DOIUrl":"10.1016/j.watcyc.2025.01.002","url":null,"abstract":"<div><div>In the present study, a series of La-doped g-C<sub>3</sub>N<sub>4</sub> with Ag nanoparticles (NPs) decoration was synthesized <em>via</em> one-pot thermal pyrolysis and wet impregnation. As compared with the bulk g-C<sub>3</sub>N<sub>4</sub> (BCN), La-modified g-C<sub>3</sub>N<sub>4</sub> or Ag-modified g-C<sub>3</sub>N<sub>4</sub>, the optimal La-doped g-C<sub>3</sub>N<sub>4</sub> with Ag NPs decoration (Ag-0.8/LaCN-1) showed improved methyl orange (MO) adsorptive capacity and higher photocatalytic activity, because of the synergistic effect of La doping and Ag NPs decoration. Adsorption kinetic and isotherm models were employed to study the adsorption mechanism. The best fit of the experimental data was obtained using the pseudo-second-order (PSO) kinetic model and the Redlich-Peterson isotherm model. It indicated that the MO adsorption using Ag-0.8/LaCN-1 was mainly governed by chemisorption; the process appeared to follow neither an ideal monolayer nor a multilayer but a hybrid mechanism. The MO adsorptive (30 min) removal and photocatalytic degradation (80 min) rate using Ag-0.8/LaCN-1 was seen at around 49.6 and 13.1 times that of BCN, respectively. At pH = 6, the good MO adsorption could be mainly the result of π – π interaction and complexation; whilst the good photocatalytic efficiency was ascribed to improved visible light absorption, charge carrier separation and transfer. Superoxide radicals and holes were proven as the main reactive species for the high MO photocatalytic degradation, by conducting the scavenger test and ESR analysis. The as-prepared Ag-0.8/LaCN-1 displayed good reusability with approximately a 3% loss in the total MO removal% after five consecutive runs of tests. Good stability was observed, recording only ca. 0.25% and 0.01% leaching of Ag and La dopants from Ag-0.8/LaCN-1, respectively, suggesting its robustness for practical use.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 151-175"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726095","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

The presence of ammonia causing breakpoint chlorination promoted the formation of trihaloacetaldehydes and trihalomethanes 氨的存在导致了断点氯化反应，促进了三卤乙醛和三卤甲烷的生成

Water Cycle Pub Date : 2025-01-01 Epub Date: 2024-12-06 DOI: 10.1016/j.watcyc.2024.12.002

Qiu-zhe Chen , Ya-qi Li , Jia-jia Jiao , Qi-jun Zhang , Huang Huang

{"title":"The presence of ammonia causing breakpoint chlorination promoted the formation of trihaloacetaldehydes and trihalomethanes","authors":"Qiu-zhe Chen , Ya-qi Li , Jia-jia Jiao , Qi-jun Zhang , Huang Huang","doi":"10.1016/j.watcyc.2024.12.002","DOIUrl":"10.1016/j.watcyc.2024.12.002","url":null,"abstract":"<div><div>The presence of ammonia can cause breakpoint chlorination when chlorination is applied for water disinfection. However, the formation of trihalomethanes (THMs) and trihaloacetaldehydes (THALs) which are typical disinfection byproducts during breakpoint chlorination is not fully understood. In this study, THMs and THALs formation during breakpoint chlorination was evaluated and compared with that during chlorination without ammonia. THMs formation was occasionally higher during breakpoint chlorination than during chlorination without ammonia for water containing natural organic matter (NOM), as breakpoint chlorination produced more THMs for amino acids but less THMs for phenols than chlorination without ammonia. However, breakpoint chlorination caused 16.2−40.2% higher THALs formation than chlorination without ammonia for NOM-containing samples and consistently higher THALs formation for model compounds. The roles of trichloramine (NCl<sub>3</sub>) and hydroxyl radical (•OH) formed from chlorine-ammonia breakpoint reactions in THMs and THALs formation during breakpoint chlorination were evaluated. Scavenging •OH by <em>tert</em>-butanol reduced THALs formation by 11.5–27.6%, which was higher than the reduction of THMs formation, indicating a more important role of •OH in transforming THALs precursors than THMs precursors. NOM and amino acids formed more THMs and THALs when reacting with NCl<sub>3</sub> than with free chlorine, indicating a promotional effect of NCl<sub>3</sub> on THMs and THALs formation during breakpoint chlorination. The formation of THMs and THALs during breakpoint chlorination at various conditions confirmed that the presence of ammonia causing breakpoint chlorination could increase the formation of THMs and THALs and particularly the brominated species. This research expands the understanding of disinfection byproducts formation during breakpoint chlorination.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 118-125"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697617","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

Sources of dissolved organic matter in initial rainwater and its photochemical activity 初始雨水中溶解有机物的来源及其光化学活性

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-04-22 DOI: 10.1016/j.watcyc.2025.04.005

Yanting Xi , Sihan Fan , Yixin Liu , Danni Cui , Zhicheng Liao , Ziwei Guo , Chaochao Lai , Haodong Zhang , Zhe Zhang , Fengxia Han , Huan He , Bin Huang , Xuejun Pan

{"title":"Sources of dissolved organic matter in initial rainwater and its photochemical activity","authors":"Yanting Xi , Sihan Fan , Yixin Liu , Danni Cui , Zhicheng Liao , Ziwei Guo , Chaochao Lai , Haodong Zhang , Zhe Zhang , Fengxia Han , Huan He , Bin Huang , Xuejun Pan","doi":"10.1016/j.watcyc.2025.04.005","DOIUrl":"10.1016/j.watcyc.2025.04.005","url":null,"abstract":"<div><div>The dissolved organic matter in initial rainwater (RDOM), including soil-dissolved organic matter (SDOM) and water-soluble organic matter (WSOM) in the atmosphere, can potentially mediate the migration and transformation of contaminants in natural water. However, researches on its sources, characteristics, and impact of environmental factors are limited. This study aims to investigate the main sources of RDOM and its properties influenced by environmental factors (such as light exposure and temperature variation). The results revealed that RDOM was mainly composed of SDOM. Temperature (–5°C, −20°C, temperature alternating, 40°C, 50°C, 60°C) induced the variation of SDOM components, altering its fluorescence characteristics, aromatic components, and hydrophobicity. And high temperature showed a more pronounced effect on SDOM components. However, temperature fluctuations had different impacts on the SDOM-mediated photodegradation of bisphenol A (BPA). Among them, only SDOM that had undergone freeze-thaw cycles exhibited a promotive effect on the photodegradation of BPA, with the most significant effect observed at −20°C. Illumination (ultraviolet light (UV) and natural light (NL)) consumed the chromophoric groups of SDOM, disrupted its intricate electron transfer structure, and reduced the production of •OH and Triplet-state dissolved organic matter (<sup>3</sup>DOM∗). So, illumination, especially UV, significantly weakened its mediating effect on the photodegradation of BPA. Based on these findings above, RDOM through temperature increase and illumination potentially leads to an inhibition of the degradation rate of organic pollutants. Conversely, RDOM may exhibit an enhanced ability following a freeze-thaw process. This study is crucial for elucidating the environmental effects of RDOM.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 428-439"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166848","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

Core–shell ZnO@ZIF-8-derived nitrogen-doped carbon nanotubes for the effective removal of methyl orange 核壳ZnO@ZIF-8-derived氮掺杂碳纳米管用于甲基橙的有效去除

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-04-16 DOI: 10.1016/j.watcyc.2025.04.004

Karthikeyan Chandrasekaran , Deepak Verma , Hiroshi Uyama , Manunya Okhawilai

{"title":"Core–shell ZnO@ZIF-8-derived nitrogen-doped carbon nanotubes for the effective removal of methyl orange","authors":"Karthikeyan Chandrasekaran , Deepak Verma , Hiroshi Uyama , Manunya Okhawilai","doi":"10.1016/j.watcyc.2025.04.004","DOIUrl":"10.1016/j.watcyc.2025.04.004","url":null,"abstract":"<div><div>The nitrogen-doped carbon nanotubes (NC) are synthesized via pyrolysis of zeolitic imidazolate framework-8 (ZIF-8) coated on ZnO nanorods, followed by acid etching. Morphological studies reveal that the NC shows a porous, tube-like structure with a diameter of 194 nm. The ZIF-8 template on the ZnO nanorods forms thin, shell-like layers surrounding the core ZnO. X-ray diffraction (XRD) analysis reveals the amorphous structure of NC, while FTIR/XPS spectra affirm nitrogen doping, Zn-N interaction in ZnO@ZIF-8, and the N-C environment in NC. The BET surface areas for ZnO@ZIF-8, ZnO@NC, and NC are 724.81 ± 12.77, 638.92 ± 1.29, and 787.11 ± 4.26 m<sup>2</sup> g<sup>−1</sup>, respectively. ZnO@NC and NC successfully removed MO at concentrations of 10 and 20 mg L<sup>−1</sup>, achieving equilibrium adsorption capacities of 50.23 and 100.50 mg g<sup>−1</sup>, respectively. The optimum conditions for ZnO@NC and NC were a pH of 6, a contact time of 60 min, and an adsorbent dosage of 0.2 g L<sup>−1</sup>, respectively. The high correlation coefficient R<sup>2</sup> (0.9983) from the Langmuir isotherm indicated monolayer adsorption on NC with the maximum adsorption capacity (q<sub>max</sub> = 126.58 mg g<sup>−1</sup>). NC followed pseudo-second-order kinetics with a high R<sup>2</sup> (0.999), substantiating the chemical interaction between the NC surface and MO. ZnO@NC showed chemical adsorption, while NC underwent physical and chemical adsorption, as identified through the isotherm (D-R) and kinetic (Elovich) models. The results show that NC proves a large BET surface area, a tubular structure, heterogeneous nitrogen-doped carbon, and abundant mesoporous channels that beneficially facilitate effective MO adsorption.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 412-427"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147198","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

The operation optimization of multipurpose reservoir between ARIMA, continuous, and Markov Chain models on Jatigede reservoir, Indonesia 印度尼西亚Jatigede水库ARIMA、连续和马尔可夫链模型的多用途水库运行优化

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-04-12 DOI: 10.1016/j.watcyc.2025.04.002

Merri Jayanti , Dyah Marganingrum , Nicco Plamonia , Heru Santoso , Mariana Marselina , Herto Dwi Ariesyady , Arwin Sabar

{"title":"The operation optimization of multipurpose reservoir between ARIMA, continuous, and Markov Chain models on Jatigede reservoir, Indonesia","authors":"Merri Jayanti , Dyah Marganingrum , Nicco Plamonia , Heru Santoso , Mariana Marselina , Herto Dwi Ariesyady , Arwin Sabar","doi":"10.1016/j.watcyc.2025.04.002","DOIUrl":"10.1016/j.watcyc.2025.04.002","url":null,"abstract":"<div><div>The critical challenge in reservoir management is optimizing reservoir volume by balancing inflow and outflow discharges. Achieving this balance is essential not only to meet downstream water demands but also to preserve the reservoir's ecological function and structural integrity. Accurate inflow estimation plays an important role in this process, as it directly impacts the calculation of outflow discharges and the stability of reservoir volume. This study aims to compare the performance of the ARIMA (<em>Autoregressive Integrated Moving Average</em>), Continuous, and Markov Chain models in the estimating inflow discharge of Jatigede reservoir in West Java Province, Indonesia as a case study. Many studies conducted for inflow discharge estimation, from the most sophisticated to the simplest. However, the performance of model depends on its accuracy to the observation data. In this study, the results underscore the significance of inflow estimation, showing that the Continuous model yields the highest correlation (0.944), the lowest RMSE (0.408), and MAE (0.115). In contrast, the Markov Chain model exhibits a correlation of 0.923, RMSE of 0.443 and MAE of 0.116, while ARIMA model reports a correlation of 0.792, RMSE of 0.621, and MAE of 0.278. The findings of study indicated that the Continuous model has given better accuracy in inflow estimation, so it the most suitable approach for optimizing reservoir management.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 399-411"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138724","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

Unveiling the potential health risks induced by photolysis of insect repellents DEET under simulated sunlight 揭示驱蚊剂避蚊胺在模拟阳光下光解对健康的潜在危害

Water Cycle Pub Date : 2025-01-01 Epub Date: 2024-12-18 DOI: 10.1016/j.watcyc.2024.12.005

Xin-Yi Jiao , Cai-Shan Wang , Ding Pan , Peng Liu , Xue-Rong Wang , Cheng Zhang , Yan-Chao Jin , Jia-Hui Hu , Xing-Yu Chen , Sha Liu , Lin-Bo Wang , Li-Ping Li

{"title":"Unveiling the potential health risks induced by photolysis of insect repellents DEET under simulated sunlight","authors":"Xin-Yi Jiao , Cai-Shan Wang , Ding Pan , Peng Liu , Xue-Rong Wang , Cheng Zhang , Yan-Chao Jin , Jia-Hui Hu , Xing-Yu Chen , Sha Liu , Lin-Bo Wang , Li-Ping Li","doi":"10.1016/j.watcyc.2024.12.005","DOIUrl":"10.1016/j.watcyc.2024.12.005","url":null,"abstract":"<div><div>N, N-diethyl-m-toluamide (DEET) is a widely used active ingredient in insect repellents, particularly in areas where mosquitoes are prevalent. Although the photolysis of DEET is inevitably to occur when exposed to sunlight, the potential risks associated with its transformation products have not been extensively studied. In this study, multiple in-vitro bioassays were conducted to examine the microtoxicity, genotoxicity and estrogenic effects of these products. Subsequently, ultraperformance liquid chromatography coupled with triple time-of-flight mass spectrometry (UPLC-TripleTOF) was adopted to identify the molecular structures of the main photolysis products. Ultimately, the correlation between the products and their toxicities was analyzed to spot the compounds potentially responsible for the elevated toxicity. The results showed that although DEET was only moderately degraded under sunlight, with a 20% reduction after photolysis, the microtoxicity was increased by 83.3%, indicating the formation of toxic products. The characterization results revealed that eight main photolysis products were generated via de-alkylation, oxidation, and electrophilic substitution. Among these, six products containing the N-ethyl-m-toluamide functional group were found to be microtoxic. Fortunately, no genotoxic or estrogenic products were produced during DEET photolysis with simulated sunlight. These noteworthy findings emphasized the potential risks associated with the use of DEET-containing topical insect repellents when exposed to sunlight.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 206-212"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739003","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

Emerging MOF-based antibiotic detection methods in water environments: Recent advances, challenges, and prospects 新兴的基于mof的水环境抗生素检测方法：最新进展、挑战和前景

Water Cycle Pub Date : 2025-01-01 Epub Date: 2025-03-15 DOI: 10.1016/j.watcyc.2025.03.003

Kexin Zhao , Xinfei Li , Cuizhu Sun , Lingyun Chen , Fengmin Li

{"title":"Emerging MOF-based antibiotic detection methods in water environments: Recent advances, challenges, and prospects","authors":"Kexin Zhao , Xinfei Li , Cuizhu Sun , Lingyun Chen , Fengmin Li","doi":"10.1016/j.watcyc.2025.03.003","DOIUrl":"10.1016/j.watcyc.2025.03.003","url":null,"abstract":"<div><div>The misuse and improper disposal of antibiotics lead to the emergence and dissemination of antibiotic-resistant bacteria and antibiotic resistance genes, posing serious threats to water environmental safety and human health. Thus, developing efficient detection methods for residual antibiotics in water environments is crucial for pollution control and public health safety. Traditional methods for detecting antibiotics including chromatographic methods, microbiological methods, and immunoassays, suffering from issues such as complex procedures, the requirement for skilled operators, and high costs, greatly limiting their applicability in in-situ monitoring. Recently, rapid detection methods, including colorimetric, fluorescence, biosensors, and paper-based detection, have received widespread attention, overcoming the aforementioned limitations and being widely adopted. Metal-organic frameworks (MOFs) possess distinct advantages, such as enrichment adsorption, catalytic degradation, and self-generated fluorescence, making them highly promising in the field of rapid antibiotic detection. Herein, the detection principles and recent advances in rapid antibiotic detection methods based on MOFs are summarized, and the unique strengths and potential of MOFs in the field of rapid antibiotic detection are highlighted. Notably, recent progress and challenges in high-throughput computing (HTC) and machine learning (ML) for screening MOFs for specific applications is discussed, and strategies for their use in MOF-based rapid antibiotic detection methods are proposed. This comprehensive review may further guide the development and optimization of antibiotic detection methods utilizing MOFs and promote their practical applications for sensing environmental antibiotics.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 335-346"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942856","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

Hydrochemical studies of groundwater in the Oum Er Rbia region, Morocco 摩洛哥乌姆厄里比亚地区地下水的水化学研究

Water Cycle Pub Date : 2025-01-01 Epub Date: 2024-12-26 DOI: 10.1016/j.watcyc.2024.12.006

Hicham Ouhakki , Kamal El Fallah , Atman Adiba , Hamid Taouil , Nouredine El Mejdoub

{"title":"Hydrochemical studies of groundwater in the Oum Er Rbia region, Morocco","authors":"Hicham Ouhakki , Kamal El Fallah , Atman Adiba , Hamid Taouil , Nouredine El Mejdoub","doi":"10.1016/j.watcyc.2024.12.006","DOIUrl":"10.1016/j.watcyc.2024.12.006","url":null,"abstract":"<div><div>This study investigates the hydrochemical characteristics of groundwater in Morocco, focusing on fifty-six protected dug wells distributed across six distinct regions: Doukkala, Bahira, Tassaout, Beni Amir, Beni Moussa, and Tadla. The investigation involves a multidimensional analysis, incorporating physicochemical parameters (pH, temperature, electrical conductivity, and turbidity), various ions (NH<sub>4</sub><sup>+</sup>, K<sup>+</sup>, Mn<sup>2+</sup>, Na<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>, Cl<sup>−</sup>, NO<sup>3−</sup>, HCO<sub>3</sub><sup>−</sup>, CO<sub>3</sub><sup>2−</sup>, and SO<sub>4</sub><sup>2−</sup>), hydrotimetric titre, total alkalinity, total alkalimetric titre, residual alkalinity, and bacteriological traits (Coliforms Total, Coliforms Fecal, Staphylococcus Fecal, and FC/SF ratio). The results indicate substantial differences among the stations under investigation for all measured parameters. The Tadla region exhibited the lowest electrical conductivity (EC) and turbidity (NTU), indicating superior water quality and minimal contamination, despite higher CO<sub>3</sub><sup>2−</sup> concentrations. Conversely, Beni Amir exhibits the highest EC and NTU values, indicating poorer water quality due to higher salinity and turbidity. The Tassaout station shows lower concentrations of most ions compared to other areas, pointing to better water quality. Meanwhile, the Doukkala station presents the highest total alkalinity values, which could affect the usability of water depending on specific uses. These results signify the diverse hydrochemical characteristics present in different regions, emphasizing the need for region-specific water management strategies. This work contributes valuable insights into the groundwater quality in Morocco, paving the way for informed decision-making in water resource planning and environmental conservation.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"6 ","pages":"Pages 347-356"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942864","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}

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