ACS ES&T water最新文献_第8页

Environmentally Sound Treatment and Green Development of Sludge under China’s Dual-Carbon Policy 中国双碳政策下污泥的环保处理与绿色发展

IF 4.3

ACS ES&T water Pub Date : 2025-07-31 DOI: 10.1021/acsestwater.5c00802

Bingfei Yan, Haochun Zang, Xiangyun Gao, Liang Duan*, How Yong Ng and Slav W. Hermanowicz,

引用次数: 0

Non-Radical Activation of Peroxydisulfate by Amine-Functionalized Graphene for Sulfamethoxazole Degradation: Insights into Performance and Mechanism 氨基功能化石墨烯对过硫酸氢盐的非自由基活化降解磺胺甲恶唑：性能和机制的见解

IF 4.3

ACS ES&T water Pub Date : 2025-07-31 DOI: 10.1021/acsestwater.5c00379

Cheng-Xin Chen, Han-Jun Sun, Jie Ding, Chen-Hao Cui, Jia-Yi Wang, Xian Zhao, Geng Luo, Yi-Lin Zhao, Yan Li*, Yuan Tian, Ji-Wei Pang, Nan-Qi Ren and Shan-Shan Yang*,

{"title":"Non-Radical Activation of Peroxydisulfate by Amine-Functionalized Graphene for Sulfamethoxazole Degradation: Insights into Performance and Mechanism","authors":"Cheng-Xin Chen, Han-Jun Sun, Jie Ding, Chen-Hao Cui, Jia-Yi Wang, Xian Zhao, Geng Luo, Yi-Lin Zhao, Yan Li*, Yuan Tian, Ji-Wei Pang, Nan-Qi Ren and Shan-Shan Yang*, ","doi":"10.1021/acsestwater.5c00379","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00379","url":null,"abstract":"The activation of persulfate by nonmetallic carbon-based catalysts has emerged as a promising strategy for the efficient degradation of organic contaminants in wastewater. In this study, amine-functionalized graphene (AGR) was synthesized via a facile reduction of graphene oxide (GO) using diethylenetriamine (DETA), which incorporated nitrogen-containing functional groups to enhance catalytic performance. Comprehensive characterization confirmed the partial removal of oxygen-containing groups from GO and the successful incorporation of amine functionalities. The synthesized AGR was employed as a highly effective catalyst for peroxydisulfate (PDS) activation, achieving an impressive 86.3% removal efficiency of sulfamethoxazole (SMX) within 60 min, with a reaction rate constant of 0.029 min–1. Notably, the catalyst demonstrated excellent recyclability, maintaining consistently high SMX removal efficiency after regeneration. The superior catalytic performance of AGR was primarily attributed to the introduction of amine groups, which facilitated charge redistribution within the graphene framework, thereby promoting efficient electron transfer between SMX and PDS. Electrochemical analyses and reactive species identification revealed that SMX degradation was primarily governed by nonradical mechanisms, including electron transfer and the generation of singlet oxygen (1O2). This study provides critical insights into the design of robust carbon-based catalysts with enhanced stability and reduced susceptibility to environmental interferences.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5254–5264"},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036290","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

Characterizing the Settlement of Activated Sludge Based on AI-Assisted Analysis of Moving and Still Images 基于人工智能辅助运动和静止图像分析的活性污泥沉降特征

IF 4.3

ACS ES&T water Pub Date : 2025-07-31 DOI: 10.1021/acsestwater.5c00539

Yuki Nakaya*, Kai Sugino, Shota Ishizaki, Reiko Hirano, Shuhei Noda, Shinobu Moniwa, Yukio Hiraoka and Hisashi Satoh,

{"title":"Characterizing the Settlement of Activated Sludge Based on AI-Assisted Analysis of Moving and Still Images","authors":"Yuki Nakaya*, Kai Sugino, Shota Ishizaki, Reiko Hirano, Shuhei Noda, Shinobu Moniwa, Yukio Hiraoka and Hisashi Satoh, ","doi":"10.1021/acsestwater.5c00539","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00539","url":null,"abstract":"Morphological and physical characteristics of activated sludge (AS) from 6 different wastewater treatment plants by moving-image and still-image analysis were compared, and important factors for improving the sedimentation of AS and suspended solids in treated water were examined. There were samples in which AS of sufficient size for recognition in the moving image remained above the interface when the interface settled, and the samples in which particles that could not be recognized in the moving image remained. Minute particles above the interface may be removed according to the shape characteristics of AS or otherwise remain in the supernatant and eventually degrade the quality of discharged water. The shape of minute particles that remain in the supernatant and/or the contact opportunity with AS that is larger and easier to sink than the minute particles may be important for the water quality improvement of the effluent. Although it is not yet known whether the behavior of solids in the container actually occurs in the secondary clarifier due to the difference in system size, the use of light-processing and AI-supported image analysis techniques simplifies the introduction to plant and may be used for objective AS characterization without relying on skilled staff.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 8","pages":"4887–4896"},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144807727","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

Pretreatment Removes Organic Molecules in Anaerobic Digestates That Inhibit Algal Productivity 预处理去除厌氧消化液中抑制藻类生产力的有机分子

IF 4.3

ACS ES&T water Pub Date : 2025-07-31 DOI: 10.1021/acsestwater.5c00418

Qichen Wang, Alireza Fallahi, Melissa Boersma, Edward T. Drabold, Margaret Otto, Marc A. Deshusses and Brendan T. Higgins*,

{"title":"Pretreatment Removes Organic Molecules in Anaerobic Digestates That Inhibit Algal Productivity","authors":"Qichen Wang, Alireza Fallahi, Melissa Boersma, Edward T. Drabold, Margaret Otto, Marc A. Deshusses and Brendan T. Higgins*, ","doi":"10.1021/acsestwater.5c00418","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00418","url":null,"abstract":"Algal growth on anaerobic digestates enables simultaneous wastewater treatment and biomass production, but dilution water is often used to overcome algal growth inhibition in digestates. It was previously shown that aerobic bacterial pretreatment alleviates algal growth inhibition in full strength digestates, but the mechanism was not elucidated. The objectives of the present study were to elucidate how aerobic bacterial and biochar pretreatments alleviate algal growth inhibition in anaerobic digestates using a combination of culture studies and LCMS/MS analysis. The results showed that aerobic bacterial and biochar pretreatments significantly (p < 0.05) enhanced algal productivity in the manure digestates by >7.1 fold and >3.1 fold, respectively. Aerobic bacterial pretreatment also enhanced nitrogen removal by algae (p < 0.002). Pretreatment removed many phenolic, antibiotic, and animal hormone metabolites. Six of the 12 “high-priority” molecules that underwent dose–response testing were inhibitory to Chlorella sorokiniana at <1 mg L–1 levels. Four of these were confirmed to have MS/MS and retention time matches in a subsequent spiking test, including butylparaben, salicylic acid, androsterone, and tiamulin. Although prior studies have focused on ammonia and turbidity as algal growth inhibitors in digestates, this study shows specific organic compounds in digestates that also inhibit algal growth and wastewater treatment.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5327–5338"},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036288","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

Synthesis of Microalgal Photogranules for Hydroponics Effluent Treatment 水培废水处理微藻光颗粒的合成

IF 4.3

ACS ES&T water Pub Date : 2025-07-30 DOI: 10.1021/acsestwater.5c00417

Harshit Tiwari, and , Sanjeev Kumar Prajapati*,

{"title":"Synthesis of Microalgal Photogranules for Hydroponics Effluent Treatment","authors":"Harshit Tiwari,  and , Sanjeev Kumar Prajapati*, ","doi":"10.1021/acsestwater.5c00417","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00417","url":null,"abstract":"Amidst the global challenge of nutrient-rich hydroponics effluent (HE) discharge, microalgal technology offers a sustainable solution for wastewater treatment and resource recovery. However, microalgae harvesting remains a major economic constraint. To address this, novel microalgal photogranules (MPGs) were developed by using Scenedesmus obliquus for HE treatment and recycling. Over 60 days of photoillumination, MPGs self-aggregated into dense granules with superior settleability (SVI30 = 20 mL g–1). Field emission scanning electron microscopy (FE-SEM) revealed compact structures with surface-attached microalgae and internal micropores that facilitate substrate and gas transport. HE-grown MPGs showed enhanced biomass productivity (0.18 ± 0.09 g L–1 day–1) compared to those from sewage sludge (0.13 ± 0.06 g L–1 day–1) and achieved a high CO2 biofixation rate (25.53 ± 2.12 g L–1 day–1). MPGs enabled complete removal of biological oxygen demand (BOD) and chemical oxygen demand (COD), ≈99% of PO43– and NH3-N and 90.2% of NO3–-N. Metagenomic analysis (16S rRNA) indicated a cyanobacterial shift under HE conditions, enhancing pollutant removal. Outdoor validation confirmed effective pollutant removal with only a 1-day delay compared to indoor trials. Succinctly, MPGs offer a sustainable and ecoefficient solution for wastewater recycling, supporting environmental resilience and circular bioeconomy transitions.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 8","pages":"4715–4728"},"PeriodicalIF":4.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144807377","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

Advancing Wastewater-Based Epidemiology through Curricular Innovation 通过课程创新推进基于废水的流行病学

IF 4.3

ACS ES&T water Pub Date : 2025-07-30 DOI: 10.1021/acsestwater.5c00779

Tahmina Ahmed, Anna Mehrotra, David A. Larsen, Thomas Clerkin, Rachel Noble, Elana M. G. Chan, Fatma Zahra Guerfali, Marlee Shaffer, Rachel Poretsky, Sugyan Mani Dixit, Rolf U. Halden, Kyle Bibby and Jeseth Delgado Vela*,

引用次数: 0

Correction to “Seasonal and In-Depth Distribution of Anthropogenic Microparticles in Hamilton Harbour” 更正“汉米尔顿港人为微粒的季节性及深度分布”

IF 4.3

ACS ES&T water Pub Date : 2025-07-29 DOI: 10.1021/acsestwater.5c00722

Behnam Nayebi, Reza Valipour, David Depew, Rama Pulicharla, Satinder Kaur Brar* and Shooka Karimpour*,

引用次数: 0

Enhanced Carbamazepine Degradation by Electrochemical Activation of Sulfite on a Metal-free Anode 亚硫酸盐在无金属阳极上的电化学活化促进卡马西平的降解

IF 4.3

ACS ES&T water Pub Date : 2025-07-29 DOI: 10.1021/acsestwater.5c00462

Qiufang Yao, Jiabin Chen*, Zewei Hao, Libin Yang, Yalei Zhang and Xuefei Zhou*,

{"title":"Enhanced Carbamazepine Degradation by Electrochemical Activation of Sulfite on a Metal-free Anode","authors":"Qiufang Yao, Jiabin Chen*, Zewei Hao, Libin Yang, Yalei Zhang and Xuefei Zhou*, ","doi":"10.1021/acsestwater.5c00462","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00462","url":null,"abstract":"This study developed a metal-free electrosulfite (ES) system using active graphite felt (GF-400) anode to overcome persistent challenges of metal secondary pollution in activated sulfite [S(IV)] procedures. The GF-400 anode demonstrated excellent performance in activating sulfite (S(IV)) to degradation of carbamazepine (CBZ) with a rate constant of 0.056 min–1, which was 50-fold higher than conventional electro-oxidation (0.001 min–1) at neutral pH. Quenching experiments and electron spin resonance (ESR) spectroscopy verified SO4•– and •OH as dominant reactive species, contributing to 93.1% CBZ removal within 60 min. DFT calculations identified carboxyl groups (−COOH) as the primary active sites (adsorption energy: −1.78 eV), enabling efficient S(IV) activation through a low-energy pathway: SO32– → SO3•–→ SO5•–/H SO5•–→ SO4•– (ΔG = −3.9424 eV). Real wastewater tests with more than 83.6% CBZ removal further demonstrated the superiority of the ES system. The ES system maintained stable performance for CBZ degradation over 18 cycles while converting waste SO2 into value-added oxidants. This technology offers a sustainable dual approach for simultaneous flue gas purification and water treatment.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 8","pages":"4782–4793"},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144807583","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

Unraveling Matrix Effects: A Study on Drugs of Abuse in Wastewater Samples from Southern Ontario, Canada 揭示基质效应：加拿大南安大略省废水样本中药物滥用的研究

IF 4.3

ACS ES&T water Pub Date : 2025-07-29 DOI: 10.1021/acsestwater.5c00092

Diana M. Cárdenas-Soracá, Sandra Salic, Lily Warkentin, Cheryl Chong, Paola A. Ortiz-Suarez, Rashne Vakharia, Leslie Bragg and Mark R. Servos*,

{"title":"Unraveling Matrix Effects: A Study on Drugs of Abuse in Wastewater Samples from Southern Ontario, Canada","authors":"Diana M. Cárdenas-Soracá, Sandra Salic, Lily Warkentin, Cheryl Chong, Paola A. Ortiz-Suarez, Rashne Vakharia, Leslie Bragg and Mark R. Servos*, ","doi":"10.1021/acsestwater.5c00092","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00092","url":null,"abstract":"Wastewater composition presents significant analytical challenges in accurately quantifying drugs of abuse (DOAs) due to matrix effects (MEs), a common issue in liquid chromatography–tandem mass spectrometry (LC–MS/MS). This study presents an optimized workflow using solid-phase extraction (SPE) and LC–MS/MS to mitigate matrix effects while maintaining adequate detection limits for the target analytes. The optimized method uses Bond Elut Nexus weak cation exchange cartridges, achieving recoveries between 60 and 100%, and demonstrates superior matrix effect reduction compared to Bond Elut Plexa PCX and Oasis hydrophilic–lipophilic balance (HLB) cartridges. Matrix effect mitigation was further improved by diluting the extract with a selected concentration factor (CF) of 50. The method was validated, exhibiting a linearity of R2 ≥ 0.9912 and limits of detection ranging from 0.01 to 0.2 ng L–1. The method was applied to raw wastewater samples from seven municipalities in southern Ontario, Canada, to explore the influence of analyte hydrophobicity, chromatography separation, and population density on matrix effects. The results indicate no clear trends among population density, analyte hydrophobicity, and matrix effects. Additionally, the retention-time-matched correction using the nearest internal standard is ineffective for addressing matrix effects. This work contributes valuable insights to advancing standardized analytical methods applicable within wastewater-based surveillance (WBS) programs to estimate drug consumption worldwide.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 8","pages":"4423–4434"},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144807447","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

Magnetic Carbon Material Treatment of Tetracycline-Containing Wastewater in a Membrane Capacitive Deionization-Coupled Peroxymonosulfate Oxidation System 磁性碳材料在膜电容去离子耦合过氧单硫酸盐氧化系统中处理含四环素废水

IF 4.3

ACS ES&T water Pub Date : 2025-07-29 DOI: 10.1021/acsestwater.5c00461

Meng Chen, Tian Zhao, Junjun Ma*, Jianrui Niu*, Minghao Yu, Chenxu Yang, Jing Zhang, Situ Mu and Chun Liu*,

{"title":"Magnetic Carbon Material Treatment of Tetracycline-Containing Wastewater in a Membrane Capacitive Deionization-Coupled Peroxymonosulfate Oxidation System","authors":"Meng Chen, Tian Zhao, Junjun Ma*, Jianrui Niu*, Minghao Yu, Chenxu Yang, Jing Zhang, Situ Mu and Chun Liu*, ","doi":"10.1021/acsestwater.5c00461","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00461","url":null,"abstract":"A membrane capacitive deionization (MCDI) system coupled with peroxymonosulfate (PMS) oxidation was developed for the synchronous removal of salts and tetracycline (TC) from saline wastewater. A magnetic carbon electrode (MAC-ns) was synthesized via pyrolysis of ammonium iron oxalate and activated carbon. The carbon matrix facilitated ion adsorption, while iron compounds enabled PMS activation for oxidative TC degradation. Under optimal conditions (Fe:C = 1:1, PMS = 15 mg, TC = 30 mg/L, NaCl = 0.5 g/L), the system achieved a salt adsorption capacity of 26.7 mg/g and a 75.9% TC removal rate. Quenching and electron paramagnetic resonance experiments confirmed that both free radicals (•SO4–, •OH, •O2–) and nonradical 1O2 contributed to TC degradation. Liquid chromatography–mass spectrometry and toxicity evaluation indicated reduced developmental toxicity and mutagenicity of degradation byproducts. The MAC-ns electrode also exhibited good electrochemical performance and superparamagnetism. This study demonstrates a low-cost, efficient, and magnetically responsive system for treating complex saline organic wastewater.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 8","pages":"4769–4781"},"PeriodicalIF":4.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144807294","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