Water Cycle最新文献_第5页

Optimization of the water conservation standard system based on the PS-PDCA method 基于PS-PDCA方法的节水标准体系优化

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2025-10-01 DOI: 10.1016/j.watcyc.2025.09.002

Lan Zhang , Xue Bai , Yan Bai , Jialin Liu , Rong Cai , Yubo Zhang

{"title":"Optimization of the water conservation standard system based on the PS-PDCA method","authors":"Lan Zhang , Xue Bai , Yan Bai , Jialin Liu , Rong Cai , Yubo Zhang","doi":"10.1016/j.watcyc.2025.09.002","DOIUrl":"10.1016/j.watcyc.2025.09.002","url":null,"abstract":"<div><div>In response to severe water shortages in China, we proposed an optimized water conservation standard system based on the model, which integrated political, economic, social, and technological (PEST) and strengths, weaknesses, opportunities, and threats (SWOT) analyses into the plan phase of plan-do-check-act (PDCA) to form the PS-PDCA cycle improvement method. The optimization requirements of the water conservation standard system were systematically identified by focusing on digital transformation, enhancing the utilization of unconventional water sources, and achieving a transition to quality and efficiency. We proposed a comprehensive framework encompassing fundamental universality, water quantity equivalence, water quality equivalence, and value equivalence. Using this framework, we analyzed the roles of various subsystems in improving water conservation efficiency, promoting sustainable water resource utilization, and enhancing water-saving benefits. We introduced pathways for optimizing existing standards, including integration, abolition, revision, upgrading, and adoption. Additionally, the issue of missing key technical standards was addressed, and recommendations for the formulation of water conservation standards were provided.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 194-202"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975957","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

Performance of the Cumulative Biotic Index (CBI) and other biotic indices in assessing ecological health of the Upper Citarum River, Indonesia 累积生物指数（CBI）和其他生物指数在印度尼西亚西塔鲁姆河上游生态健康评估中的表现

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2025-06-27 DOI: 10.1016/j.watcyc.2025.06.007

Jojok Sudarso , Aiman Ibrahim , Sugiarti , Cynthia Henny Aziz , Indra Setiadi Hermana , Etty Riani , Prima Mayaningtyas , Muhammad Yamin , Mochammad Zamroni , Angelita Frisca , Rosetyati Retno Utami

{"title":"Performance of the Cumulative Biotic Index (CBI) and other biotic indices in assessing ecological health of the Upper Citarum River, Indonesia","authors":"Jojok Sudarso , Aiman Ibrahim , Sugiarti , Cynthia Henny Aziz , Indra Setiadi Hermana , Etty Riani , Prima Mayaningtyas , Muhammad Yamin , Mochammad Zamroni , Angelita Frisca , Rosetyati Retno Utami","doi":"10.1016/j.watcyc.2025.06.007","DOIUrl":"10.1016/j.watcyc.2025.06.007","url":null,"abstract":"<div><div>The macroinvertebrate multimetric concept is widely employed to assess the ecological condition of freshwater ecosystems subjected to anthropogenic pressures. In this study, the Cumulative Biotic Index (CBI) was evaluated as a region-specific biocriteria-based tool to assess the ecological health of the Upper Citarum River, which has been heavily impacted by socioeconomic development. The objectives were to (1) assess the diversity and evenness of benthic macroinvertebrate communities, (2) identify key environmental factors influencing community structure, and (3) evaluate the sensitivity of the CBI in comparison with other established biological indices. Field surveys were conducted between September 2022 and August 2023 across 15 stations, applying rapid assessment protocols to measure water quality, habitat conditions, and benthic macroinvertebrate identifications. A total of 124 macroinvertebrate genera were identified, with diversity and evenness categorized as moderate to low (H’ = 2.6–0.3 nits) and stability ranging from medium to low (J = 0.75–0.27), indicating a decline at disturbed sites. Multivariate analyses revealed that organic enrichment (total nitrogen, total phosphorus), sedimentation (turbidity, percent embeddedness), and habitat disturbance (habitat index) were the primary factors shaping community composition. Among seven tested biological indices, the CBI demonstrated the highest sensitivity in distinguishing ecological gradients, underscoring its potential as a robust biomonitoring tool for evaluating restoration efforts in river ecosystems, particularly in Indonesia and other tropical rivers with similar conditions.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 83-98"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781246","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

Analysis on the decay law of water retention of sponge city roads under cyclic clogging 循环堵塞作用下海绵城市道路保水衰减规律分析

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2025-12-07 DOI: 10.1016/j.watcyc.2025.12.003

Yanming Hao , Xiaochuan Wang , Zeqi Gao , Zhe Qin , Zhaoyang Liu

{"title":"Analysis on the decay law of water retention of sponge city roads under cyclic clogging","authors":"Yanming Hao , Xiaochuan Wang , Zeqi Gao , Zhe Qin , Zhaoyang Liu","doi":"10.1016/j.watcyc.2025.12.003","DOIUrl":"10.1016/j.watcyc.2025.12.003","url":null,"abstract":"<div><div>The water retention capacity of sponge city pavement systems is substantially compromised by particulate sedimentation induced by vehicular and pedestrian traffic. To systematically evaluate the deterioration mechanisms of hydrological performance under cyclic clogging, a controlled rainfall-simulation experiments were conducted. This experimental framework enabled quantitative characterization of particle size-dependent clogging distribution patterns and temporal evolution of hydrodynamic performance. Key findings revealed that: (1) Primary clogging exerted disproportionate impacts on motorways and non-motorized ways, with median particle size retention rates decaying to 70.5 % (motorway) and 67.6 % (non-motorized way) of initial values during 2nd–10th sedimentation cycles, versus only 25.6 % for sidewalks; (2) Progressive clogging cycles triggered a phase transition in permeability dynamics, shifting the dominant hydrological process from subsurface infiltration to surface runoff generation; (3) The runoff modulation efficiency of water storage structures exhibited a multiphase trajectory (decline–recovery–stabilization), while the integrated stormwater management performance degraded from 94.23 % to 86.03 % baseline efficiency.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 311-320"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147448974","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

Deciphering the water quality deterioration in isolated artificial landscape replenished with reclaimed water: Key driving factors and mechanism 中水补给孤立人工景观水质恶化解析：关键驱动因素与机制

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2026-02-16 DOI: 10.1016/j.watcyc.2026.02.007

Xin Shan , Hutao Wang , Chenguang Li , Peitong Li , Xiaohui Liu , Hao Zheng , Hong-Ying Hu , Fengmin Li

{"title":"Deciphering the water quality deterioration in isolated artificial landscape replenished with reclaimed water: Key driving factors and mechanism","authors":"Xin Shan , Hutao Wang , Chenguang Li , Peitong Li , Xiaohui Liu , Hao Zheng , Hong-Ying Hu , Fengmin Li","doi":"10.1016/j.watcyc.2026.02.007","DOIUrl":"10.1016/j.watcyc.2026.02.007","url":null,"abstract":"<div><div>Reclaimed water reuse is critical to alleviate urban water resources shortage. However, applying it to artificial landscape might pose ecological issues, and key factors driving water quality deterioration especially in isolated waters with weak self-purification capacity remains unclear. This study unveiled the relationship between water quality deterioration with dissolved organic matter (DOM), algal and bacterial communities in isolated artificial landscape replenished by reclaimed water. Results showed that the trophic level index was increased by 58.6 %–88.2 % with increase in turbidity, chemical oxygen demand, and chlorophyll <em>a</em> after reclaimed water reuse. Carbon, nitrogen, phosphorus as key factors drove the deterioration of water quality. Fluorescence characteristics suggested that increased DOM was derived from endogenous microorganisms. The algae of <em>Chlorelia</em>, <em>Scenedesmus</em>, <em>Ankistrodesmus</em> and bacteria of <em>Porphyrobacter</em>, <em>Fluviimonas</em>, <em>Rhodobacter</em> were dominant contributors. Partial least squares path modeling revealed that bacteria were more sensitive to reclaimed water, while algal proliferation more likely induced water quality deterioration. These findings deepened our understanding on water quality deterioration process, and highlighted the superiority of monitoring algae when reusing reclaimed water in artificial landscapes.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 480-489"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147703026","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

Visible-light-driven activation of micro-concentration H2O2 by Fe(III)-fulvic acid complexes for efficient pollutant degradation Fe(III)-黄腐酸配合物在可见光驱动下活化微浓度H2O2以有效降解污染物

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2026-03-26 DOI: 10.1016/j.watcyc.2026.03.004

Yuze Li , Wei Li , Yue Yuan , Jian Zhang , Ningruo Wang , Heng Zhang , Xuejia Li , Yujia Xiang , Bo Lai , Peng Zhou , Chuanshu He , Yang Liu

{"title":"Visible-light-driven activation of micro-concentration H2O2 by Fe(III)-fulvic acid complexes for efficient pollutant degradation","authors":"Yuze Li , Wei Li , Yue Yuan , Jian Zhang , Ningruo Wang , Heng Zhang , Xuejia Li , Yujia Xiang , Bo Lai , Peng Zhou , Chuanshu He , Yang Liu","doi":"10.1016/j.watcyc.2026.03.004","DOIUrl":"10.1016/j.watcyc.2026.03.004","url":null,"abstract":"<div><div>The inherent inefficiency associated with the utilization of micro-concentration hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) in conventional Fenton systems arises from the sluggish cycling between Fe(III) and Fe(II). To address this fundamental limitation, the present study demonstrates that complexes formed between Fe(III) and fulvic acid (FA) can effectively harness visible-light-driven ligand-to-metal charge transfer (LMCT). This photochemical process facilitates a synergistic dual-pathway activation of H<sub>2</sub>O<sub>2</sub>: 1) Fe(II) generated through intramolecular electron transfer reduction of the Fe(III)-FA complex directly activated H<sub>2</sub>O<sub>2</sub>; 2) In the photoexcited ∗Fe(III)-FA complex, the reduction of the key intermediate ∗OOH lowered the activation energy barrier, facilitating the formation of ∙OH and O<sub>2</sub><sup>·-</sup> radicals. Moreover, at a stoichiometric molar ratio of H<sub>2</sub>O<sub>2</sub> to contaminant set at 1:1, contaminant removal efficiency achieves an impressive 95%. This light-enhanced mechanism establishes a new paradigm for efficient micro-concentration -level oxidation using H<sub>2</sub>O<sub>2</sub>, demonstrating exceptional effectiveness in eliminating trace pollutants.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 538-546"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147991589","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

Fluvial flood extent modeling using machine learning algorithms trained on benchmark flood maps: new insights for computationally efficient flood mapping 使用机器学习算法在基准洪水地图上训练的河流洪水范围建模：计算效率洪水地图的新见解

IF 7.9

Water Cycle Pub Date : 2026-01-01 Epub Date: 2026-04-28 DOI: 10.1016/j.watcyc.2026.04.002

Matej Vojtek, Dávid Držík, Jozef Kapusta, Jana Vojteková

{"title":"Fluvial flood extent modeling using machine learning algorithms trained on benchmark flood maps: new insights for computationally efficient flood mapping","authors":"Matej Vojtek, Dávid Držík, Jozef Kapusta, Jana Vojteková","doi":"10.1016/j.watcyc.2026.04.002","DOIUrl":"10.1016/j.watcyc.2026.04.002","url":null,"abstract":"<div><div>Fluvial floods are one of the most frequent types of floods worldwide and their computationally efficient and accurate prediction is necessary, especially, for flood preparedness and hazard reduction. This study aims at predicting the fluvial flood extents for flood scenarios of Q<sub>1000</sub>, Q<sub>100</sub>, and Q<sub>10</sub> applying the random forest (RF), extreme gradient boosting (XGBoost), and neural networks (NN). The ML models were trained based on the benchmark official flood maps and seven predictors. We also tested four variants of training/testing data splits (50/50, 60/40, 70/30, 80/20). The performance of ML models was quantitatively assessed using four metrics. We studied a 23.6 km reach of the Kysuca River in northern Slovakia. Based on the results, the studied ML models can generate flood extent maps in an accurate and fast way for all tested splits and flood scenarios. The maximum difference between ML models for flood extent classification within one split was 2%. The lowest F1-score was 0.875 recorded for the XGBoost model, Q<sub>10</sub> flood scenario and 50/50 split while the highest value of 0.922 was achieved by the NN model for Q<sub>100</sub> flood scenario and 70/30 split. The most important predictors for all splits and flood scenarios were HAND and distance to river. The training time of the RF and XGBoost models was up to 2 min while for the NN model, it ranged from 4.56 to 26.98 min. Overall, the results suggest high potential of ML for near-real time flood mapping and early warning operational purposes.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 617-631"},"PeriodicalIF":7.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148640458","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

Capacitive deionization for anion removal in water purification: mechanisms, applications, and prospects 电容去离子在水净化中去除阴离子：机理、应用和前景

IF 7.9

Water Cycle Pub Date : 2026-01-01 Epub Date: 2026-06-15 DOI: 10.1016/j.watcyc.2026.06.001

Zhuling Guo, Lei Huang, Jia Yan, Hongguo Zhang, Zhenxing Wang, Meng Li, Kengqiang Zhong, Hongbo Zeng

{"title":"Capacitive deionization for anion removal in water purification: mechanisms, applications, and prospects","authors":"Zhuling Guo, Lei Huang, Jia Yan, Hongguo Zhang, Zhenxing Wang, Meng Li, Kengqiang Zhong, Hongbo Zeng","doi":"10.1016/j.watcyc.2026.06.001","DOIUrl":"10.1016/j.watcyc.2026.06.001","url":null,"abstract":"<div><div>The removal of anions from water remains a major challenge in water treatment and water resource protection. Capacitive deionization (CDI) is an energy-saving and eco-friendly ion removal technology and has gained growing attention. Great advances have been made recently in its electrode materials, system structures, and ion storage principles. This review systematically summarizes the recent advances in CDI for anion removal, with particular emphasis on the roles of carbon-based materials, transition metal compounds, and organic electrode materials in removing different anions from water. Unlike previous reviews, this work comparatively analyzes the removal performance of various electrode materials toward different anions and correlates these performances with the corresponding adsorption and charge-storage mechanisms. In addition, the review highlights the important roles of advanced characterization techniques and computational methods in elucidating ion transport and storage behaviors. Furthermore, optimization strategies for CDI system configurations and the challenges associated with practical large-scale applications are discussed. CDI systems boast prominent strengths in selectivity, treatment efficiency, operational stability, and resource recovery. Nevertheless, multiple key obstacles restrict its practical use in complex water environments. These difficulties involve poor long-term electrode stability during dynamic operation, low selective removal capacity amid mixed ions, and the balance between energy efficiency and large-scale application. Addressing these challenges will be essential for the future development and practical application of CDI technologies in water treatment.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 667-700"},"PeriodicalIF":7.9,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148951303","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 impacts of polystyrene microplastics on development, energy transfer and nutrient cycling of biofilms: A comprehensive chronic toxicity study 聚苯乙烯微塑料对生物膜发育、能量传递和营养循环的影响：一项综合慢性毒性研究

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2025-06-10 DOI: 10.1016/j.watcyc.2025.06.003

Shuangshuang Li , Duo Xu , Yu Zheng , Heng Liu , Yan Song , Mingcan Cai , Chun Wang

{"title":"The impacts of polystyrene microplastics on development, energy transfer and nutrient cycling of biofilms: A comprehensive chronic toxicity study","authors":"Shuangshuang Li , Duo Xu , Yu Zheng , Heng Liu , Yan Song , Mingcan Cai , Chun Wang","doi":"10.1016/j.watcyc.2025.06.003","DOIUrl":"10.1016/j.watcyc.2025.06.003","url":null,"abstract":"<div><div>The escalating prevalence of microplastics (MPs) in aquatic ecosystems is anticipated to exert a significant impact on the growth and development of aquatic biota. Nonetheless, the current body of research on the mechanisms through which microplastics influence biofilm colonization in freshwater systems remains insufficiently elucidated. To address this research gap, we investigated the impact of polystyrene microplastics (PS-MPs) on biofilm growth and development, with a particular focus on their effects on functional metabolism in freshwater environments. Using controlled long-term experiments, we explored the influence of PS-MPs at concentrations of 1, 10, and 100 mg/L over 52 days on microbial community structure, alpha and beta diversity and functional potential. The results showed a concentration-dependent inhibition of biofilm biomass and chlorophyll <em>a</em> content, with the most severe reduction (43.5% in biomass, 31.4% in chlorophyll <em>a</em>) occurring at 100 mg/L PS-MPs. LDH activity, indicative of oxidative stress, significantly increased under PS-MPs exposure, especially during early biofilm development, suggesting acute cellular stress. In addition, PS-MPs likely disrupt carbon and nitrogen cycling within biofilms, as evidenced by the increased relative abundance of <em>Pseudomonas</em> and <em>Cyanobacteria</em> under high PS-MPs concentrations, indicating microbial community adaptation to environmental stressors. Functional prediction analyses further revealed altered expression in key metabolic pathways, such as those involved in antioxidant synthesis, nitrogen metabolism, and purine biosynthesis. The findings provide critical insights for understanding the ecological risks posed by MPs and underline the necessity of developing targeted strategies for pollution mitigation and ecological restoration in freshwater systems.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 7-18"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749705","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

Application of irrigation techniques to improve water use efficiency in shallots (Allium ascalonicum L.) in dryland 灌溉技术在提高旱地葱水分利用效率中的应用

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2025-11-12 DOI: 10.1016/j.watcyc.2025.11.001

Yayan Apriyana , Budi Kartiwa , Popi Rejekiningrum , Woro Estiningtyas , Elza Surmaini , Elsa Rakhmi Dewi , Sutardi , Annisa Dhienar Alifia

{"title":"Application of irrigation techniques to improve water use efficiency in shallots (Allium ascalonicum L.) in dryland","authors":"Yayan Apriyana , Budi Kartiwa , Popi Rejekiningrum , Woro Estiningtyas , Elza Surmaini , Elsa Rakhmi Dewi , Sutardi , Annisa Dhienar Alifia","doi":"10.1016/j.watcyc.2025.11.001","DOIUrl":"10.1016/j.watcyc.2025.11.001","url":null,"abstract":"<div><div>Insufficient water resources pose a significant challenge to the development of drylands in Indonesia for cultivating crops like shallots (<em>Allium ascalonicum</em> L.). Water scarcity in dryland is attributed to limited water flow within the drainage network that occurs solely during rainfall, making it unsuitable for agricultural cultivation during the dry season. The feasibility of shallot farming in the dry season is maintained through the optimized use of groundwater resources. The implementation of this initiative will be more effective when integrated with water-saving irrigation technologies. The study aims on optimizing groundwater resources utilization and integrate appropriate water-saving irrigation techniques to increase water use efficiency and enhance shallot production in dryland areas. The study examined the effects of various irrigation techniques using field experiments with a split-plot design. The experiment examined plant spacing as the main variable, with alternative irrigation techniques functioning as the sub-variables. Results indicated that water-saving methods significantly boosted water use efficiency (WUE) in shallot production. In comparison to conventional methods, the implementation of three irrigation types resulted in an increase in WUE by 2.08 kg/m<sup>3</sup> to 7.16 kg/m<sup>3</sup> and enhanced productivity by 2.6–3.3 tons/hectare. The Laser Spray irrigation technique demonstrated superior outcome, achieving a water efficiency of 12.85–13.34 kg/m<sup>3</sup> and improved efficiency by 7.16 to 6.69 kg/m<sup>3</sup> relative to manual methods. The selection of irrigation techniques and the optimal plant spacing can increase WUE and substantially boost shallot yield in dryland agriculture.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 278-291"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147448976","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

Synergistic influence of hydrophilicity and photocatalysis of bio-TiO2@ZIF-8/PVA-PVDF membrane on high-performance treatment of antibiotic-contaminated water bio-TiO2@ZIF-8/PVA-PVDF膜亲水性和光催化对高效处理抗生素污染水的协同影响

IF 8.7

Water Cycle Pub Date : 2026-01-01 Epub Date: 2026-02-16 DOI: 10.1016/j.watcyc.2026.02.008

Ngozi Enemuo, Tien-Chien Jen

{"title":"Synergistic influence of hydrophilicity and photocatalysis of bio-TiO2@ZIF-8/PVA-PVDF membrane on high-performance treatment of antibiotic-contaminated water","authors":"Ngozi Enemuo, Tien-Chien Jen","doi":"10.1016/j.watcyc.2026.02.008","DOIUrl":"10.1016/j.watcyc.2026.02.008","url":null,"abstract":"<div><div>The menace of antibiotic contamination of water bodies has highlighted the need to develop efficient strategies to effectively remove them from contaminated water for safe discharge. In this study, a high-performance bio-TiO<sub>2</sub>@ZIF-8/PVA-PVDF membrane was developed to effectively remove cefixime, which is a commonly used antibiotic, from contaminated water. Through harnessing the hydrophilicity and photocatalytic capability of the membrane, significant improvements in the membrane's permeability, CFX removal, and self-cleaning propensity were achieved. Analysis of the bio-TiO<sub>2</sub>@ZIF-8/PVA-PVDF membrane's hydrophilicity indicates that the water contact angle (WCA) was reduced to 61.00 ± 4.59<sup>o</sup>, as compared to the 88.56 ± 2.79<sup>o</sup> WCA of the pristine PVDF. The band gap energy (E<sub>g</sub>) of the bio-TiO<sub>2</sub>@ZIF-8 composite was narrowed to 2.96 eV from 3.25 eV obtained for the bio-TiO<sub>2</sub>, which infused the bio-TiO<sub>2</sub>@ZIF-8 modified membrane with photocatalytic ability in the visible light range. The pure water flux (PWF) of the bio-TiO<sub>2</sub>@ZIF-8/PVA-PVDF membrane was 246.50 ± 3.11 L/m<sup>2</sup>h, and the long-term filtration of the CFX-contaminated water demonstrated that the membrane could maintain a stable CFX flux for 78 h, while being able to remove up to 99.5 % CFX from the wastewater. This notable performance of the bio-TiO<sub>2</sub>@ZIF-8/PVA-PVDF membrane is attributed to the enhanced hydrophilic and photocatalytic capacity of the membrane, which contributed to increasing the membrane's water affinity and its CFX degradation under visible light. Absorbed CFX on the membrane surface, due to the saturation of the feed solution and CFX blockage of the membrane's photoactive sites, was noted after the long filtration. However, the absorbed CFX on the membrane was self-cleaned within 1 h.</div></div>","PeriodicalId":34143,"journal":{"name":"Water Cycle","volume":"7 ","pages":"Pages 388-402"},"PeriodicalIF":8.7,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147600164","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