ACS ES&T water最新文献_第10页

Biomimetic Iron-Doped Polydopamine Sensor for Selective Detection of Polystyrene Nanoplastics 仿生铁掺杂聚多巴胺传感器对聚苯乙烯纳米塑料的选择性检测

IF 4.8

ACS ES&T water Pub Date : 2025-05-29 DOI: 10.1021/acsestwater.5c0009010.1021/acsestwater.5c00090

T.S. Sunil Kumar Naik, Radhika Varshney and Praveen C. Ramamurthy*,

{"title":"Biomimetic Iron-Doped Polydopamine Sensor for Selective Detection of Polystyrene Nanoplastics","authors":"T.S. Sunil Kumar Naik, Radhika Varshney and Praveen C. Ramamurthy*, ","doi":"10.1021/acsestwater.5c0009010.1021/acsestwater.5c00090","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00090https://doi.org/10.1021/acsestwater.5c00090","url":null,"abstract":"Polystyrene (PS) nanoplastics have emerged as a significant environmental contaminant, posing risks to ecosystems and human health. Herein, a novel biomimetic electrochemical sensor has been developed for the sensitive and selective detection of PS nanoplastics, utilizing an iron-incorporated polydopamine (FePDA) matrix on a carbon paste electrode (CPE). Inspired by mussel adhesion proteins, the FePDA system mimics biological processes, combining strong adhesion, selective molecular interactions, and enhanced electron transfer properties. The FePDA/MCPE sensor demonstrated exceptional sensitivity, achieving a detection limit of 1 mg/L, facilitated by Fe3+/Fe2+ redox cycling that improves the electron transfer efficiency and reduces charge transfer resistance. Molecular docking simulations revealed strong π−π stacking interactions between PS nanoplastics and the FePDA matrix, contributing to high selectivity over other polymers such as polyethylene glycol and poly(vinyl alcohol). Electrochemical impedance spectroscopy measurements confirmed these findings, with a notable reduction in charge transfer resistance at the FePDA-modified electrode compared to the unmodified electrode. Validation experiments conducted with spiked tap water samples yielded 91 and 96% detection efficiencies, demonstrating the sensor’s applicability in real-world environmental monitoring scenarios. This biomimetic sensor provides a robust, portable platform for real-time, on-site detection of PS nanoplastics, addressing critical environmental monitoring and public health protection needs. A biomimetic electrochemical sensor enables the specific detection of PS nanoplastics, addressing their widespread environmental contamination and mitigating associated ecological and public health risks.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3241–3250 3241–3250"},"PeriodicalIF":4.8,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269785","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 Critical Role of Artificial Intelligence in Optimizing Electrochemical Processes for Water and Wastewater Remediation: A State-of-the-Art Review 人工智能在优化水和废水修复电化学过程中的关键作用：最新进展综述

IF 4.8

ACS ES&T water Pub Date : 2025-05-28 DOI: 10.1021/acsestwater.5c0023810.1021/acsestwater.5c00238

Milad Mousazadehgavan*, Zeinab Hajalifard, Milad Basirifard, Shahabeddin Afsharghoochani, Sayedali Mirkhalafi, Işık Kabdaşlı*, Khalid Hashim and Ismini Nakouti,

{"title":"The Critical Role of Artificial Intelligence in Optimizing Electrochemical Processes for Water and Wastewater Remediation: A State-of-the-Art Review","authors":"Milad Mousazadehgavan*, Zeinab Hajalifard, Milad Basirifard, Shahabeddin Afsharghoochani, Sayedali Mirkhalafi, Işık Kabdaşlı*, Khalid Hashim and Ismini Nakouti, ","doi":"10.1021/acsestwater.5c0023810.1021/acsestwater.5c00238","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00238https://doi.org/10.1021/acsestwater.5c00238","url":null,"abstract":"Artificial intelligence (AI) is transforming electrochemical water and wastewater treatment by enhancing efficiency, predictive accuracy, and process control. However, a comprehensive evaluation of AI models in optimizing electrochemical processes for pollutant removal is still lacking. This review addresses this gap by systematically analyzing AI applications in electrocoagulation (EC), electrooxidation (EO), electro-Fenton (EF), and electrodialysis (ED). Focusing on key advances and parameter optimization, it highlights how AI-driven models improve removal efficiency by capturing complex nonlinear interactions among variables such as current density, pH, electrode material, electrolyte composition, and pollutant concentration. Recent studies have notably shown that artificial neural networks (ANNs) and adaptive neuro-fuzzy inference systems (ANFIS) have achieved R2 values above 0.99 in EC and EO processes, outperforming traditional models. Hybrid AI approaches like ANN-GA and ANFIS-ACO have further optimized catalyst dosage and ion migration in EF and ED. While AI has demonstrated remarkable potential, challenges such as limited data availability, model interpretability, and real-world implementation remain significant obstacles. Integrating AI with mechanistic modeling and real-time monitoring may overcome these barriers and enable autonomous, energy-efficient treatment systems. This Perspective offers critical insights into current progress and future opportunities, underscoring the role of intelligent optimization in advancing sustainable and scalable electrochemical water treatment technologies.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"2793–2811 2793–2811"},"PeriodicalIF":4.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.5c00238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269780","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

Triiron Tetraoxide (Fe3O4) Triggers Aerobic Denitrification Performance in Low C/N Water: Novel Insights into the Electron Transport System and Bacterial Community Model 四氧化三铁（Fe3O4）在低碳氮比水中触发好氧反硝化性能：对电子传递系统和细菌群落模型的新见解

IF 4.8

ACS ES&T water Pub Date : 2025-05-28 DOI: 10.1021/acsestwater.5c0021710.1021/acsestwater.5c00217

Haihan Zhang*, Mengting Chu, Ben Ma, Sixuan Pan, Anyi Li, Kaige Chen, Fengrui Li, Xiaohui Jia, Jiaxin Wei, Tinglin Huang, Zhongbing Chen and Xinjian Niu,

{"title":"Triiron Tetraoxide (Fe3O4) Triggers Aerobic Denitrification Performance in Low C/N Water: Novel Insights into the Electron Transport System and Bacterial Community Model","authors":"Haihan Zhang*, Mengting Chu, Ben Ma, Sixuan Pan, Anyi Li, Kaige Chen, Fengrui Li, Xiaohui Jia, Jiaxin Wei, Tinglin Huang, Zhongbing Chen and Xinjian Niu, ","doi":"10.1021/acsestwater.5c0021710.1021/acsestwater.5c00217","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00217https://doi.org/10.1021/acsestwater.5c00217","url":null,"abstract":"Denitrification performance is significantly influenced by electron donors, mainly organic electron donors. Inorganic electron donors (e.g., Fe3O4) have shown potential for enhancing the nitrate removal efficiency. However, the mechanism of Fe3O4 on denitrification under aerobic conditions remains poorly understood. This study investigated the synergistic mechanisms of electron transfer and microbial interactions facilitated by Fe3O4 in an aerobic denitrifying bacterial community isolated from a micropolluted reservoir. The results revealed that the aerobic denitrifying bacterial (ADB) reactor achieved over 50% efficiency in both denitrification and organic carbon removal. When Fe3O4 was added, the removal efficiencies for nitrate (NO3–-N) and organic carbon increased to 82.38 and 66.84%, respectively. The adenosine triphosphate (ATP) activity and electron transport system activity (ETSA) increased by 1.3- and 1.7-fold, respectively, with the upregulation of denitrification-related enzymes. High-throughput sequencing analysis demonstrated that the bacterial community structure in the water column, biofilm, and sediment was enriched with Proteobacteria and Actinobacteria phyla in the biofilm. Additionally, statistical modeling further highlighted the stabilizing effects of Fe3O4 on the reaction system and the microbial community’s adaptive responses to environmental factors. In summary, this study provides a novel approach for leveraging Fe3O4 and aerobic denitrifying bacterial communities to achieve efficient nitrogen removal in micropolluted waters.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3391–3402 3391–3402"},"PeriodicalIF":4.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269662","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

Effects of Light Intensity on Growth, Microcystin Production, and Release of Two Microcystis spp. 光照强度对两种微囊藻生长、微囊藻毒素产生和释放的影响。

IF 4.8

ACS ES&T water Pub Date : 2025-05-28 DOI: 10.1021/acsestwater.5c0010210.1021/acsestwater.5c00102

Chen Cheng, Yurong Gu, Jie Liu, Qingju Xue, Yongjiu Cai and Liqiang Xie*,

{"title":"Effects of Light Intensity on Growth, Microcystin Production, and Release of Two Microcystis spp.","authors":"Chen Cheng, Yurong Gu, Jie Liu, Qingju Xue, Yongjiu Cai and Liqiang Xie*, ","doi":"10.1021/acsestwater.5c0010210.1021/acsestwater.5c00102","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00102https://doi.org/10.1021/acsestwater.5c00102","url":null,"abstract":"The impact of light intensity on microcystin (MC) production and release of different toxic strains remains unclear. This study examined two toxic strains of Microcystis aeruginosa (FACHB-1203 and FACHB-1322) under light intensities of 35, 70, and 105 μmol photons/m2·s to assess growth, MC synthesis and release, and the transcription of mcyB and mcyH. Results showed that both strains achieved the highest cell density at 70 μmol photons/m2·s at the end of cultivation. Intracellular total MC (TMC, sum of MC-LR, MC-YR, and MC-RR) concentration decreased with increasing light intensity. MC release rates increased under high light intensity for both strains, although extracellular TMC concentrations responded differently to light intensity. An increase in light intensity from 70 to 105 μmol photons/m2·s shifted intracellular MC congeners from MC-RR and MC-YR toward the more toxic MC-LR for both strains and enhanced MC-LR and MC-YR release. A decrease in light intensity from 70 to 35 μmol photons/m2·s shifted extracellular MC-RR toward MC-LR. Correlation analyses suggested that the decreased intracellular TMCs under high light intensity resulted from an increased MC release rate, driven by the increased transcription of mcyB and mcyH. These results enhance the understanding of the adaptive strategies employed by toxic cyanobacteria under fluctuating light intensities.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3274–3284 3274–3284"},"PeriodicalIF":4.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269779","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

A New Microbial Enrichment and Recovery Technology Based on Layered Double Hydroxides 基于层状双氢氧化物的微生物富集与回收新技术

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 DOI: 10.1021/acsestwater.5c0015510.1021/acsestwater.5c00155

Feng Wang, Xiaobo Yang, Panpan Yang, Ruolin Hao, Rumeng Li, Man Zhang, Jingxue Qian, Yanhua Cao, Lijuan Zhang, Jingfeng Wang, Zhiqiang Shen, Yun Ling* and Zhigang Qiu*,

{"title":"A New Microbial Enrichment and Recovery Technology Based on Layered Double Hydroxides","authors":"Feng Wang, Xiaobo Yang, Panpan Yang, Ruolin Hao, Rumeng Li, Man Zhang, Jingxue Qian, Yanhua Cao, Lijuan Zhang, Jingfeng Wang, Zhiqiang Shen, Yun Ling* and Zhigang Qiu*, ","doi":"10.1021/acsestwater.5c0015510.1021/acsestwater.5c00155","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00155https://doi.org/10.1021/acsestwater.5c00155","url":null,"abstract":"The current common detection techniques are difficult to achieve in the on-site detection of low-concentration water samples. To recover pathogenic microorganisms from water, a concentration filtration system and enrichment technology was constructed with bimetallic layered hydroxides. Specifically, Mg/Al bimetallic hydroxides (Mg/Al LDH) with a Mg:Al ratio of 2.14:1 were synthesized by coprecipitation, and bimetallic oxides (CLDHs) with larger specific surface areas were obtained by high-temperature calcination. This study revealed that the adsorption kinetics of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) reached a stable equilibrium at 30 and 40 min, respectively, through static-condition experiments. The adsorption capacity of CLDHs for E. coli was about 5.321 × 109 CFU/g, while that for S. aureus was about 1.679 × 107 CFU/g. Moreover, a concentrated recovery system was designed and constructed. This study found that the system could effectively remove 99% of E. coli, S. aureus, and Candida albicans (C. albicans) from water, with a bacterial recovery rate exceeding 80%. In conclusion, the established concentration and recovery system offers an efficient means of recovering pathogenic microorganisms from water, thereby providing great convenience for subsequent microbial detection.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3325–3336 3325–3336"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269616","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

Transport and Transformation of PFASs in an Aqueous Film-Forming Foam-Impacted Fractured Rock Aquifer 全氟烷烃在水成膜泡沫冲击裂隙岩含水层中的运移与转化

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 DOI: 10.1021/acsestwater.5c0000810.1021/acsestwater.5c00008

Iain Alexander, Theresa Barth, Charles Harder, Asher Holton, Emmet Schmehling, Gavin Thomsen, Alex Lyford, Richard Spiese, Jonathan Kim and Peter Ryan*,

{"title":"Transport and Transformation of PFASs in an Aqueous Film-Forming Foam-Impacted Fractured Rock Aquifer","authors":"Iain Alexander, Theresa Barth, Charles Harder, Asher Holton, Emmet Schmehling, Gavin Thomsen, Alex Lyford, Richard Spiese, Jonathan Kim and Peter Ryan*, ","doi":"10.1021/acsestwater.5c0000810.1021/acsestwater.5c00008","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00008https://doi.org/10.1021/acsestwater.5c00008","url":null,"abstract":"Per- and polyfluoroalkyl substances (PFASs) occur in aqueous film-forming foams (AFFFs) used to extinguish jet fuel fires. Spatiotemporal behaviors of PFASs in fractured rock aquifers (FRAs) are virtually unknown, prompting this study of PFAS transformation and advective transport downgradient of AFFF applications that occurred in ∼1980–2017. PFAS concentrations in 60 water wells indicate spatial variability, from fluorotelomer sulfonate (FTS)-dominated proximal wells to downgradient wells dominated by perfluorocarboxylic acids (PFCAs); shorter-chain perfluorohexanoic acid (PFHxA) and perfluoropentanoic acid (PFPeA) are prevalent at intermediate distances, while longer-chain perfluorooctanoic acid (PFOA) is prevalent in distal wells. Perfluorooctanesulfonic acid (PFOS) and related sulfonates and sulfonamides are generally an order of magnitude lower in concentration than PFCAs. Temporal variability (2018–2023) is indicated by changing PFAS ratios over time, notably decreasing 6:2 FTS paired with increasing PFHxA and PFPeA. The prevalence of 6:2 FTS in groundwater indicates the need to quantify precursor PFAS compounds in drinking water and aquatic ecosystems.Transformation of unregulated PFAS compounds (e.g., fluorotelomer sulfonates) into stable PFAS compounds (e.g., perfluoroalkyl carboxylic acids) occurs in a fractured rock aquifer impacted by aqueous film-forming foam testing.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3089–3099 3089–3099"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.5c00008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269656","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

Enhanced Recovery of Zn(II) on Marine Anammox Bacteria-Based Consortia after Long-Term Multiantibiotic Inhibition in Marine Wastewater Treatment 长期多种抗生素抑制海洋厌氧氨氧化菌群对Zn（II）的回收

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 DOI: 10.1021/acsestwater.5c0000610.1021/acsestwater.5c00006

Bingying Fan, Jin Li*, Bowei Tan, Weichuan Kong, Yang Liao and Ruiping Liu,

{"title":"Enhanced Recovery of Zn(II) on Marine Anammox Bacteria-Based Consortia after Long-Term Multiantibiotic Inhibition in Marine Wastewater Treatment","authors":"Bingying Fan, Jin Li*, Bowei Tan, Weichuan Kong, Yang Liao and Ruiping Liu, ","doi":"10.1021/acsestwater.5c0000610.1021/acsestwater.5c00006","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00006https://doi.org/10.1021/acsestwater.5c00006","url":null,"abstract":"Marine wastewater (MW) treatment faces a huge challenge due to its high salinity, and marine anammox bacteria (MAB) are currently used because of their good salt tolerance. Besides, most of the MWs contain antibiotics and MAB-based consortia are difficult to recover after long-term multiantibiotic inhibition in MW treatment. Herein, 2 mg/L Zn(II) was added to investigate the fast recovery of MAB-based consortia after long-term multiantibiotic inhibition in MW treatment for the first time. Zn(II) significantly accelerated the microbial recovery, achieving a 100% ammonium removal efficiency 10 days earlier. The stoichiometric ratios (ΔNO2–-N:ΔNH4+-N = 1.22, ΔNO3–-N:ΔNH4+-N = 0.26) of the marine anammox finally stabilized around the theoretical ratios. Besides, MAB (Candidatus Scalindua) abundance increased by 2.07-fold after Zn(II) addition. Moreover, the antibiotic resistance gene (ARG) abundance decreased by 13.48%, and the persistence of quinolone-induced and sulfonamide-induced ARGs was higher than that of tetracycline-induced ARGs. The intI1 abundance generally increased to promote horizontal transfer, but it increased little after Zn(II) addition. Correlations among different ARGs were strengthened by Zn(II), and tetG was positively correlated with sul1. This work clearly demonstrates that Zn(II) can enhance the recovery of MAB-based consortia after long-term multiantibiotic inhibition and promote nitrogen removal in MW treatment.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3078–3088 3078–3088"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269521","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

When the Household is the Utility: Ensuring Equitable Water Service for Rural US Communities Served by Decentralized Water Systems. 当家庭是公用事业：确保分散式供水系统为美国农村社区提供公平的供水服务。

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 eCollection Date: 2025-06-13 DOI: 10.1021/acsestwater.5c00064

Claire Cropper, Elizabeth Wulbrecht, Patrick Thomson, Aaron D Dotson, Kerry A Hamilton, Amber Wutich, Paul Westerhoff, Lee E Voth-Gaddert

{"title":"When the Household is the Utility: Ensuring Equitable Water Service for Rural US Communities Served by Decentralized Water Systems.","authors":"Claire Cropper, Elizabeth Wulbrecht, Patrick Thomson, Aaron D Dotson, Kerry A Hamilton, Amber Wutich, Paul Westerhoff, Lee E Voth-Gaddert","doi":"10.1021/acsestwater.5c00064","DOIUrl":"10.1021/acsestwater.5c00064","url":null,"abstract":"Despite nationally reported metrics that suggest high levels of water security, approximately 12% of the United States of America (US) population is estimated to be water insecure based on the definition in United Nations (UN) SDG 6.1.1. Approximately half of these households are served by Decentralized Water Systems (DWS). In contrast, most research, engineering, innovation, and government programs are focused on Centralized Water Systems (CWS). In this perspective, we 1) characterize and define DWS using professional language common for CWS; 2) compare the social, economic, and regulatory responsibilities of stakeholders in each system; 3) outline existing strategies to professionalize this sector; and 4) propose research avenues to further professionalize DWS to ensure households served by these systems receive equitable water service. We demonstrate that while DWS share commonalities with CWS, decentralized systems are less formally structured; have more stakeholders between source and tap; and place much of the regulatory, finance, maintenance, and safety responsibilities on individual households. These responsibilities include ensuring water quantity and quality, selecting appropriate treatment technologies, finance of repairs and upgrades, and transporting water. We propose strategies for researchers to aid in codeveloping innovative DWS solutions, ensuring relevant integration and community-driven models that better support decentralized communities.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"2812-2821"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12172056/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328061","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

When the Household is the Utility: Ensuring Equitable Water Service for Rural US Communities Served by Decentralized Water Systems 当家庭是公用事业：确保分散式供水系统为美国农村社区提供公平的供水服务

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 DOI: 10.1021/acsestwater.5c0006410.1021/acsestwater.5c00064

Claire Cropper, Elizabeth Wulbrecht, Patrick Thomson, Aaron D. Dotson, Kerry A. Hamilton, Amber Wutich, Paul Westerhoff and Lee E. Voth-Gaddert*,

{"title":"When the Household is the Utility: Ensuring Equitable Water Service for Rural US Communities Served by Decentralized Water Systems","authors":"Claire Cropper, Elizabeth Wulbrecht, Patrick Thomson, Aaron D. Dotson, Kerry A. Hamilton, Amber Wutich, Paul Westerhoff and Lee E. Voth-Gaddert*, ","doi":"10.1021/acsestwater.5c0006410.1021/acsestwater.5c00064","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00064https://doi.org/10.1021/acsestwater.5c00064","url":null,"abstract":"Despite nationally reported metrics that suggest high levels of water security, approximately 12% of the United States of America (US) population is estimated to be water insecure based on the definition in United Nations (UN) SDG 6.1.1. Approximately half of these households are served by Decentralized Water Systems (DWS). In contrast, most research, engineering, innovation, and government programs are focused on Centralized Water Systems (CWS). In this perspective, we 1) characterize and define DWS using professional language common for CWS; 2) compare the social, economic, and regulatory responsibilities of stakeholders in each system; 3) outline existing strategies to professionalize this sector; and 4) propose research avenues to further professionalize DWS to ensure households served by these systems receive equitable water service. We demonstrate that while DWS share commonalities with CWS, decentralized systems are less formally structured; have more stakeholders between source and tap; and place much of the regulatory, finance, maintenance, and safety responsibilities on individual households. These responsibilities include ensuring water quantity and quality, selecting appropriate treatment technologies, finance of repairs and upgrades, and transporting water. We propose strategies for researchers to aid in codeveloping innovative DWS solutions, ensuring relevant integration and community-driven models that better support decentralized communities.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"2812–2821 2812–2821"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.5c00064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269522","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

A Yeast Candida Palmioleophila W1 Enables Effective Nitrogen Removal from Wastewater through Heterotrophic Nitrification and Aerobic Denitrification 嗜棕榈念珠菌W1通过异养硝化和好氧反硝化实现废水中氮的有效去除

IF 4.8

ACS ES&T water Pub Date : 2025-05-27 DOI: 10.1021/acsestwater.5c0023310.1021/acsestwater.5c00233

Jinkun Fang, Xiaohan Lu, Weihao Lu, Tengpeng Gu, Yihong Chen, Shaoan Liao and Jianmin Ye*,

{"title":"A Yeast Candida Palmioleophila W1 Enables Effective Nitrogen Removal from Wastewater through Heterotrophic Nitrification and Aerobic Denitrification","authors":"Jinkun Fang, Xiaohan Lu, Weihao Lu, Tengpeng Gu, Yihong Chen, Shaoan Liao and Jianmin Ye*, ","doi":"10.1021/acsestwater.5c0023310.1021/acsestwater.5c00233","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00233https://doi.org/10.1021/acsestwater.5c00233","url":null,"abstract":"Yeasts capable of nitrogen removal from wastewater have rarely been identified. In this study, a novel yeast strain, Candida palmioleophila W1, isolated from Shenzhen Bay, demonstrated remarkable nitrogen removal efficiency via heterotrophic nitrification-aerobic denitrification (HN-AD). Single-factor experiments and response surface methodology (RSM) optimization revealed that the optimal conditions for nitrogen removal were a C/N ratio of 15.95, salinity of 15.78 ppt, and pH of 6.40. Furthermore, strain W1 exhibited superior nitrogen removal performance (the inorganic nitrogen removal efficiencies of 97.33%–99.98%) when supplied with ammonium, nitrite, nitrate, or their mixtures as nitrogen sources. Nitrogen balance analysis and enzyme activity assays indicated that nitrification and denitrification pathways predominated in the metabolism of inorganic nitrogen, with partial nitrogen assimilation. The addition of strain W1 into semisynthetic wastewater improved nitrogen removal by more than 2-fold compared to the control group without strain W1. These findings provide valuable insights into wastewater treatment processes and may inform future predictions regarding nitrogen removal by yeast.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 6","pages":"3430–3438 3430–3438"},"PeriodicalIF":4.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144269615","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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