Water Research最新文献

{"title":"Microalgal-based urea wastewater treatment with p-Hydroxybenzoic acid enhances resource recovery and mitigates biological risks from Bisphenol A","authors":"Zhenhao Zhao, Jingjing Jiang, Dandan Zhou, Shuangshi Dong","doi":"10.1016/j.watres.2024.123065","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123065","url":null,"abstract":"Efficient nutrient recovery from source-separated urine is vital for wastewater treatment, with microalgae as a promising solution. However, bisphenol A (BPA) in urine can hinder microalgal resource recovery and pose water quality risks. The role of plant hormones in enhancing microalgal growth and pollutant removal is known, but their impact on BPA-laden urine treatment is not well-studied. Here, we explored para-hydroxybenzoic acid (p-HBA) in <ce:italic>Chlorella</ce:italic> for treating diluted urine with BPA. p-HBA boosted photosynthesis and glycolysis, increasing pyruvate and ATP production and enhancing microalgal growth by 45.7 %. It also optimized nitrogen metabolism, raising urea and nitrogen consumption by 35 % and 65 %, respectively, and protein content by 23.1 %. Enhanced oxidase and transferase expression improves BPA degradation by 40 %. Additionally, ARGs and plasmid abundance decreased by 24.3 % and 37.5 %, respectively, reducing the risk of ARG dissemination. This study shows that p-HBA significantly improves the efficiency and safety of urine resource recovery, offering a promising strategy for sustainable wastewater treatment.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"41 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142925266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Chlorination-induced spread of antibiotic resistance genes in drinking water systems","authors":"Weixin Zhao, Yanan Hou, Liangliang Wei, Wei Wei, Kefeng Zhang, Haoran Duan, Bing-Jie Ni","doi":"10.1016/j.watres.2025.123092","DOIUrl":"https://doi.org/10.1016/j.watres.2025.123092","url":null,"abstract":"Chlorine, the most widely utilized disinfectant for drinking water globally, has recently been implicated in facilitating the spread of antibiotic resistance genes (ARGs), raising concerns about its underestimated environmental and ecological risks. However, given the current fragmented research focus and results, a comprehensive understanding of the potential mechanisms and influencing factors behind chlorination-promoted ARGs transmission in drinking water systems is crucial. This work is the first to systematically review the variations in abundance, transmission mechanisms, influencing factors, and mitigation strategies related to ARGs during the chlorination process. The results indicated that chlorination could induce genetic mutations and promote horizontal gene transfer through multiple pathways, including increased reactive oxygen species, enhanced membrane permeability, stimulation of the SOS response, and activation of efflux pumps. In addition, this work delves into significant discoveries regarding the factors affecting ARG transmission in drinking water, such as chlorine concentration, reaction time, disinfection byproducts, pipe materials, biofilms, and the water matrix. A series of effective strategies from water source to point-of-use were proposed aimed at mitigating ARGs transmission risks in the drinking water system. Finally, we address existing challenges and outline future research directions to overcome these bottlenecks. Overall, this review aims to advance our understanding of the role of chlorination in the dissemination of ARGs and to inspire innovative research ideas for optimizing disinfection techniques, minimizing the risks of antibiotic resistance transmission, and enhancing the safety of drinking water.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"20 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142924565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"PHOTOHETEROTROPHIC extracellular reduction of ferrihydrite activates diverse intracellular metabolic pathways in Rhodopseudomonas palustris for enhanced antibiotic degradation","authors":"Xiaoyan Bai, Qian Yu, Jian Sun, Yulei Xie, Yong Yuan","doi":"10.1016/j.watres.2025.123088","DOIUrl":"https://doi.org/10.1016/j.watres.2025.123088","url":null,"abstract":"anoxygenic photosynthetic bacteria(APB) have been frequently detected as a photoautotrophic Fe-carbon cycling drivers in photic and anoxic environment. However, the potential capacity of these bacteria for photoheterotrophic extracellular reduction of iron-containing minerals and their impact on the transformation of organic pollutants remain currently unknown. This study investigated the capacity of <em>R. palustris</em>, a purple non-sulfur anoxygenic photosynthetic bacterium, to reduce ferrihydrite (Fh) and its correlation with sulfamethazine (SDZ)degradation were firstly investigated. The results revealed that <em>R. palustris</em> could undergo photoheterotrophic extracellular reduction of Fh to form goethite through direct contact, facilitating the formation of conductive bands and enter the interior of cells with a maximum Fe(II)/Fe(T) ratio of up to 39% within 8 days which led to 13% increase in assimilation rate of acetate carbon and 53.2% increase in SDZ degradation rates, as compared with those by <em>R. palustris</em> alone. Moreover, the intermediates generated during the degradation of SDZ by <em>R. palustris-</em>Fh exhibited relatively lower developmental toxicity compared with the original SDZ molecule. The extracellular reduction of Fh significantly up-regulated the expression of genes related to photosynthetic metabolic enzymes, extracellular electron transporters, and extracellular degrading enzymes in <em>R. palustris</em>. This enhancement promoted the photoheterotrophic metabolism and extracellular secretion of photosensitive active compounds in <em>R. palustris</em>, thereby enhancing both the biodegradation and photosensitive degradation of SDZ.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"43 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142917539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Toward One-Step As(III) Removal in Ultrafiltration with In Situ BioMnOx Cake Layer: Mechanism and Feasibility Insights","authors":"Kai Li, Yao Lu, Chu Zhou, Zizheng Liu, Liang Luo, Aijuan Zhou, Senlin Shao","doi":"10.1016/j.watres.2025.123087","DOIUrl":"https://doi.org/10.1016/j.watres.2025.123087","url":null,"abstract":"Inorganic arsenic (As) is one of the most significant chemical contaminants in drinking water worldwide. Although membrane-based technologies are commonly used for As removal, they often encounter challenges including complex operation, high energy consumption, and the need for chemical addition. To address these challenges, we proposed a one-step ultrafiltration (UF) process empowered by in situ biogenic manganese oxides (BioMnO_x) cake layers without any additional chemicals, to treat source water contaminated with both As and manganese (Mn). During the filtration, BioMnO_x continuously deposited on the membrane surface with the oxidation of Mn²⁺ by Mn-oxidizing bacteria. The in situ generated BioMnO_x cake layer exhibited a heterogeneous structure, high specific surface area, and significant catalytic activity. Notably, with this BioMnO_x cake layer, the one-step UF successfully achieved a nearly 100% removal of As(III). This high efficiency is due to the catalytic oxidation of As(III) to As(V) by BioMnO_x, followed by the adsorption of As(V) onto the BioMnO_x surface. With the removal of Mn²⁺, new BioMnO_x was continuously formed, which provided new catalytic and adsorption sites, thereby enabling a self-sustained removal of As(III). In addition to the advantages of simple operation and chemical free, the process also exhibited a good economic feasibility with a low energy consumption (0.078 kWh/m³) and a low operating cost (0.229 CNY/m³). Our study provides an example to show that cake layers on membranes are not inherently detrimental and can be beneficial in specific applications.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"11 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Corrigendum to \"Interactions of graphene oxide with the microbial community of biologically active filters from a water treatment plant\" [Water Research 263 (2024) 122155].","authors":"Tanvir Ahamed, Chao Li, Mengyan Li, Lisa Axe","doi":"10.1016/j.watres.2024.122637","DOIUrl":"10.1016/j.watres.2024.122637","url":null,"abstract":"","PeriodicalId":443,"journal":{"name":"Water Research","volume":"268 Pt A","pages":"122637"},"PeriodicalIF":11.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Groundwater arsenic and antimony mobility from an antimony mining area: Controls of sulfide oxidation, carbonate and silicate weathering, and secondary mineral precipitation","authors":"Wen Qiao, Yi Wang, Peiyong He, Xiulan Yin, Deqiang Zhang, Guangyu Bai, Wei Sun, Zhigang Luo, Xin Wei, Jianmei Lan, Michael Kersten, Zhipeng Gao, Huaming Guo","doi":"10.1016/j.watres.2024.123086","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123086","url":null,"abstract":"Sulfide mineral oxidation has been recognized as the key driver of arsenic (As) and antimony (Sb) mobility in mining-impacted groundwater. However, the role of carbonate and silicate weathering and secondary mineral precipitation in this process remain unknown. A comprehensive geochemical study of groundwater was conducted in an Sb-mining area, Hunan, China, with samples collected from aquifers of the Xikuangshan Formation (D₃x), the Shetianqiao Formation (D₃s), and the Lower Carboniferous Formation (C₁y). Results show co-enrichment of dissolved As and Sb with concentrations reaching up to 28.8 and 22.1 mg/L, respectively. The significant positive correlation between SO₄²⁻ and As or Sb concentrations, coupled with the similarity of δ³⁴S-SO₄ to δ³⁴S signature of sulfide minerals (e.g., arsenopyrite and stibnite), indicate sulfide mineral oxidation as the primary mobilization mechanism. The significantly higher SO₄²⁻ concentrations support more extensive sulfide mineral oxidation in the D₃s aquifer than those in the D₃x and C₁y aquifers, which was responsible for its significantly higher As and Sb concentrations. The SO₄²⁻/Σ⁺ against Ca²⁺/Σ⁺ cross plot suggests that, in addition to sulfide mineral oxidation, silicate weathering was more prevalent in the D₃s groundwater, which may contribute to enhance As and Sb mobility. However, carbonate dissolution triggered by sulfide mineral oxidation dominated in the C₁y groundwater with significantly higher Ca²⁺/Σ⁺, favoring the precipitation of pharmacolite (CaHAsO₄:2H₂O) and Ca₂Sb₂O₇, which acted as important sinks for dissolved As and Sb. This study highlights that, in addition to sulfide mineral oxidation, the carbonate and silicate weathering and precipitation of As and Sb-bearing minerals are also pivotal in influencing the As and Sb mobility in groundwater from a mining area.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"355 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Overlooked risks of photoaging of nitrogenous microplastics with natural organic matter in water: Augmenting the formation of nitrogenous disinfection by-products","authors":"Saisai Guo, Honghong Lyu, Yinghao Shi, Jingchun Tang","doi":"10.1016/j.watres.2024.123085","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123085","url":null,"abstract":"In aqueous environments, microplastics (MPs) undergo photoaging, releasing dissolved organic matter (DOM). Disinfection byproducts (DBPs) formation from natural organic matter (NOM) phototransformation has been reported. However, the impact of NOM on the photoaging of MPs (especially nitrogen-containing MPs) and subsequent nitrogenous DBPs (N-DBPs) formation remains unknown. Herein, this study investigated polyamide (PA) with NOM (fulvic acid [FA], humic acid [HA] and biochar-derived DOM [BDOM]) on N-DBPs formation. Results showed that the levels of the main DBPs, N-nitrosamine, formed in the FA+PA, BDOM+PA, and HA+PA systems were 3.0. 2.7 and 1.6 folds higher, respectively, compared to those in the corresponding NOM treatments. NDMA was found to be the dominant N-nitrosamine species, with the highest level of 202 ng/L, exceeding the WHO guideline of 100 ng/L. The main reactive intermediates (RIs) were ¹O₂ and reactive nitrogen species (RNS) during the first stage (0–3d), and •OH and RNS during the second stage (3–7d), which were confirmed by quenching experiment. For the first time, we found the formation of N-DBPs during photoaging of N-containing MPs, and proposed a two-stages, two-processes, and two-pathways theory of N-DBPs formation. This work emphasizes the importance to understand the interactions between the MPs and NOM in photoaging to better assess the risk of DBPs formation in aqueous environment.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"371 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Understanding the Microbial Processes on Carbon Brushes that Accelerate Methanogenesis of Long-Chain Fatty Acids in Anaerobic Digestion","authors":"Mou Zhang, Yilian Han, Yuanyuan Zeng, Tuo Wang, Ziyuan Wang, Yuhang Wu, Nan Li, Fernanda Leite Lobo, Xin Wang","doi":"10.1016/j.watres.2024.123084","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123084","url":null,"abstract":"Lipids offer high energy recovery potential during anaerobic digestion (AD), but their hydrolysis generates long-chain fatty acids (LCFAs), which are difficult to biodegrade. The introduction of microbial electrolysis cells has been widely recognized as a promising strategy to enhance AD. However, it is still under debate whether the electrical circuit needs to be connected, as certain electrodes with large specific surface areas have been reported to enhance direct interspecies electron transfer (DIET) without requiring an external power supply. Here we confirmed that the carbon brush anode pre-acclimated with electroactive bacteria (EAB) was able to accelerate LCFA methanation. Although the applied potential achieved a rapid methane production, the coupling of homoacetogenesis and electrogenesis consumed part of the bioelectrohydrogen, reducing the maximum methane production rate by 5–13%. In the AD system with only carbon brushes added, the dominant methanogens shifted from <em>Methanosarcina</em> in solution to <em>Methanothrix</em> on brushes. Pre-enriching EAB further established a composite mechanism, with DIET driven by <em>Syntrophomonas, Geobacter</em> and <em>Methanothrix</em> as the primary pathway, and interspecies hydrogen transfer mediated by <em>Methanospirillum</em> as a complementary process, collectively optimizing LCFA methanation. Genetic regulation underlying microbial tolerance to high LCFA concentrations was then elucidated, underscoring the critical role of combining immobilized electrodes and pre-acclimated EAB in adapting to LCFA stress and improving lipid-rich wastewater treatment.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"1 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"An ODE-based swift and dynamic sewer airflow model","authors":"Tao Shi, Jiuling Li, Jingyu Ge, Shane Watts, Yaran Wang, Keshab Sharma, Zhiguo Yuan","doi":"10.1016/j.watres.2024.123083","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123083","url":null,"abstract":"Airflow models are powerful tools for ventilation design to achieve odour and corrosion mitigation in sewer networks. Currently, there lacks a model able to efficiently predict in-sewer dynamic airflows, as all available dynamic models with an acceptable accuracy are computationally demanding. In this study, a swift dynamic airflow model based on an ordinary differential equation (ODE) is derived by simplifying the one-dimensional Navier Stokes Equations (NSE), supported by the observation that the NSE solutions always display negligible spatial variations in air velocity when applied to a sewer conduit. The ODE model reproduces the NSE airflow predictions with a high-level fidelity, with time consumption reduced by two orders of magnitude. The ODE model was calibrated and validated using comprehensive datasets collected from a pilot sewer. The calibrated ODE model was applied to simulated sewer networks in both natural and forced ventilation scenarios, which demonstrates the accuracy, robustness, and efficiency of the model. The swift dynamic airflow model will provide strong support to effective sewer ventilation design for odour and corrosion management in sewers.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"11 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

{"title":"Inflow-modulated inputs of dissolved organic matter fuel carbon dioxide emissions from a large hyper-eutrophic lake","authors":"Mingrui Qian, Yongqiang Zhou, Lei Zhou, Yunlin Zhang, Yang Pu, Travis W. Drake, Thomas A. Davidson, Robert G.M. Spencer, Justin D. Brookes, Erik Jeppesen","doi":"10.1016/j.watres.2024.123082","DOIUrl":"https://doi.org/10.1016/j.watres.2024.123082","url":null,"abstract":"Terrestrial dissolved organic matter (DOM) is potentially reactive and, upon entering lake ecosystems, can be readily degraded to low-molecular-weight organic matter and dissolved CO₂. However, to date, there has been limited research on the links between long-term variation in the composition of DOM and CO₂ emissions from lakes. Lake Taihu is a large, shallow, and hyper-eutrophic lake where DOM composition is strongly influenced by inputs from the rivers draining cultivated and urbanized landscapes. This study aims to investigate the impact of water chemistry and DOM characteristics, modulated by inflow-discharge dynamics, on the variability of <em>p</em>CO₂ in Lake Taihu. Based on long-term seasonal observations from 2000 to 2022, we estimated the annual areal average CO₂ flux (<em>F</em>CO₂) to be 470 ±107 gCO₂ m^-2 yr^-1 corresponding to a summed flux of 1.1 ± 0.3 TgCO₂ yr^-1 from the lake. Elevated levels of <em>F</em>CO₂ were found in 2004-2007, and across the dataset, the highest <em>F</em>CO₂ was often observed in February and the lowest in August, corresponding with higher algal uptake in summer. Northwestern inflowing riverine DOM, consisting of both soil leachate and rapidly degradable domestic wastewater along with the input of riverine CO₂ itself, explained the elevated <em>F</em>CO₂ in the northwestern lake regions. Ultra-high resolution mass spectrometry (FT-ICR MS) can resolve the composition of DOM at the molecular level, revealing that CO₂ concentrations vary with the relative abundance of terrestrially derived condensed aromatics. Incubation experiments further confirmed the link between the degradation of biologically labile DOM and the aerobic CO₂ production. We conclude that riverine organic matter inputs and subsequent degradation, modulated by inflow discharge, play a key role in shaping CO₂ emissions from Lake Taihu over the past two decades.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"34 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142908651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}