ACS ES&T water最新文献_第5页

Treatment of Effluents from Vehicle Wash Stations with the Electrocoagulation Process: Proposition of a Predictive Statistical Model for the Estimation of the Efficiency of Chemical Oxygen Demand and Methylene Blue Active Substance Reduction 电凝法处理洗车站废水：化学需氧量和亚甲基蓝活性物质还原效率预测统计模型的提出

IF 4.3

ACS ES&T water Pub Date : 2025-08-13 DOI: 10.1021/acsestwater.5c00547

Marcelo GuerreiroCrizel*, Tiago Marquadt Barreto, Gustavo Lopes Colpani, Luciano Luiz Silva, Márcio Antônio Fiori and Josiane Maria Muneron de Mello,

{"title":"Treatment of Effluents from Vehicle Wash Stations with the Electrocoagulation Process: Proposition of a Predictive Statistical Model for the Estimation of the Efficiency of Chemical Oxygen Demand and Methylene Blue Active Substance Reduction","authors":"Marcelo GuerreiroCrizel*, Tiago Marquadt Barreto, Gustavo Lopes Colpani, Luciano Luiz Silva, Márcio Antônio Fiori and Josiane Maria Muneron de Mello, ","doi":"10.1021/acsestwater.5c00547","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00547","url":null,"abstract":"The effluent generated in car and motorcycle wash processes contains several contaminants, including metals, oils, greases, surfactants (MBAS), microorganisms, high chemical oxygen demand (COD), and turbidity. When not properly treated, these compounds can cause severe environmental damage. In this study, the EC process was applied to treat this effluent. A predictive model was obtained using an experimental design methodology. The effects of the area and distance between aluminum electrodes and treatment time on the percentage reduction of COD and MBAS in a real vehicle wash station effluent (VWSE) were evaluated. The process was tested for 30 to 330 min at an electrical potential of 10.0 V. A 33 full factorial design was used to develop the mathematical model, which was experimentally validated. Under the best-predicted model conditions (1.0 cm electrode spacing, 18.0 cm2 area, and 330 min), COD reductions of 90% and MBAS reductions of 97% were achieved. The validated models and optimized parameters support the sizing and design of the electrolytic reactors for VWSE treatment. The 33 full factorial design with statistical validation provided predictive capability and process optimization, evaluating the efficiency of the EC process and also allowed the prediction of system behavior under different operating conditions.Electrocoagulation treats car wash effluent with up to 97% pollutant removal, validating a predictive model through experimental design.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5542–5562"},"PeriodicalIF":4.3,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsestwater.5c00547","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036618","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

Mass Transfer Behavior of High-Gravity Backwashing for Walnut Shell Filter in Oilfields: Theoretical Frame, Numerical Simulation, and Experimental Study 油田核桃壳过滤器高重力反洗传质行为：理论框架、数值模拟与实验研究

IF 4.3

ACS ES&T water Pub Date : 2025-08-12 DOI: 10.1021/acsestwater.5c00329

Zhongchen Yu, Tianhao Hao, Song Wang*, Qiushi Zhao, Xigui Dong, Ke Li and Yuhao Sun,

{"title":"Mass Transfer Behavior of High-Gravity Backwashing for Walnut Shell Filter in Oilfields: Theoretical Frame, Numerical Simulation, and Experimental Study","authors":"Zhongchen Yu, Tianhao Hao, Song Wang*, Qiushi Zhao, Xigui Dong, Ke Li and Yuhao Sun, ","doi":"10.1021/acsestwater.5c00329","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00329","url":null,"abstract":"With the popularization and application of polymer flooding technology in oilfields, many problems have arisen for the walnut shell filter in service, such as poor regeneration of granular media, contamination of the filter bed, and low efficiency of oil/water separation. A new high-gravity backwashing system, based on the perspective of the “field”, has been established. This system primarily uses Bezier curves for parametric modeling of blade cross sections, and a theoretical mathematical model of the high-gravity backwashing velocity gradient G value in the efficient zone has been developed. Meanwhile, the interparticle collision regulation of the high-gravity backwashing process was simulated using the coupled FLUENT-EDEM method. The simulated velocity gradient G values were obtained for different high-gravity values and are in general agreement with the theoretical G values. The optimal high-gravity value for backwashing was determined through numerical simulation and experimental validation. The surface properties of walnut shell filter media before and after backwashing were analyzed using SEM and XPS methods to provide a reference for subsequent high-gravity backwashing studies. The high-gravity backwashing process breaks through the technical bottleneck of backwashing under a gravity field, which will promote technical iteration and upgrading in oilfields.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5170–5183"},"PeriodicalIF":4.3,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036526","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

Harmful Metal Export from Abandoned Mines Controlled by Hydrodynamic and Biogeochemical Drivers 水动力与生物地球化学驱动控制下废弃矿山有害金属出口

IF 4.3

ACS ES&T water Pub Date : 2025-08-12 DOI: 10.1021/acsestwater.5c00334

Anita Alexandra Sanchez*, Conrad Jackisch, Michel Oelschlägel, Sabrina Hedrich and Maximilian P. Lau,

{"title":"Harmful Metal Export from Abandoned Mines Controlled by Hydrodynamic and Biogeochemical Drivers","authors":"Anita Alexandra Sanchez*, Conrad Jackisch, Michel Oelschlägel, Sabrina Hedrich and Maximilian P. Lau, ","doi":"10.1021/acsestwater.5c00334","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00334","url":null,"abstract":"Abandoned mines are significant contaminant sources to rivers and lakes, with metal(loid) leaching and acid drainage impacting water quality and ecosystem function. While mine drainage is conventionally assumed to contribute contaminants continuously over decadal time scales, recent findings indicate episodic pulses of metal(loid) export with uncertain drivers. Here, we investigate a former lead–silver-zinc mine (Reiche Zeche, Germany) that drains directly into Elbe River tributaries, identifying spatial and temporal peaks in contaminant release, i.e., “hotspots” of reactivity. Through biogeochemical monitoring and molecular profiling of dissolved organic matter (DOM) and microbial communities, we reveal dynamic contaminant sources. One hotspot exhibited a release pattern controlled by density stratification, in which deeper, isolated layers with iron-oxidizing bacteria intensively accumulated metals and DOM. We demonstrate that specific molecular formulas within DOM are tightly coupled to metals, such that DOM can act as a persistent tracer of hotspot activity while also potentially enhancing metal(loid) complexation, stabilization, and release processes. A broader survey of abandoned mines (n = 28) revealed similar DOM signatures downstream of leaching sites, suggesting similarities in the contaminant release dynamics. These findings provide a framework for novel contaminant monitoring approaches and highlight the need for improved water management strategies at subsurface–surface interfaces in postmining landscapes.This work provides a unique insight into the hydrological dynamic, biogeochemical functioning, and regional prevalence of contaminant release from (abandoned) subsurface mines.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5184–5194"},"PeriodicalIF":4.3,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsestwater.5c00334","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036609","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

Dual Role of Natural Organic Matter as an Inhibitor or Stimulator of Hydroxyl Radical Formation in the Ozonation Process 天然有机物在臭氧化过程中作为羟基自由基形成抑制剂或刺激剂的双重作用

IF 4.3

ACS ES&T water Pub Date : 2025-08-11 DOI: 10.1021/acsestwater.5c00336

Anam Asghar*, Laura Betzenberger, Alina Sophia Hofrath, Adrien Tanti and Torsten C. Schmidt,

{"title":"Dual Role of Natural Organic Matter as an Inhibitor or Stimulator of Hydroxyl Radical Formation in the Ozonation Process","authors":"Anam Asghar*, Laura Betzenberger, Alina Sophia Hofrath, Adrien Tanti and Torsten C. Schmidt, ","doi":"10.1021/acsestwater.5c00336","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00336","url":null,"abstract":"The degradation of ozone (O3)-recalcitrant organic micropollutants (OMPs) is limited by the selectivity of O3 toward electron-rich moieties. This study investigates the dual role of natural organic matter (NOM) in ozonation, focusing on its ability to inhibit or promote hydroxyl radical (HO•) formation, thereby influencing the degradation of O3-resistant OMPs. Tannic acid (TA), gallic acid (GA), catechin (CAT), and tryptophan (Trp) were selected as NOM surrogates, representing phenolic, carboxylic, and amine functional groups. Atrazine (ATZ) served as a model OMP to evaluate the effects of NOM moieties, molecular weight, and concentration on degradation kinetics. During an initial phase (<20 s), aromatic, phenolic, and amine groups enhanced HO• formation, achieving 50% ATZ degradation, with over 85% achieved within 200 s. However, higher NOM concentrations (>5 mg/L) exhibited inhibitory effects due to increased O3 depletion and radical scavenging. Phenolic moieties strongly enhanced ATZ degradation, with their effect increasing proportionally with concentration, while carboxylic groups, especially GA, scavenged HO•, resulting in low HO• yields (0.08–0.12) at 3–10 mg/L. These findings provide critical insights into the role of NOM functional groups in ozonation, advancing the understanding of O3 demand, OMP fate, and process optimization in water treatment.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5210–5220"},"PeriodicalIF":4.3,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036435","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

Sources, Pathways, and Mitigation Strategies for Excess Nitrogen Loading in the Red River Delta, Northern Vietnam 越南北部红河三角洲过量氮负荷的来源、途径和缓解策略

IF 4.3

ACS ES&T water Pub Date : 2025-08-11 DOI: 10.1021/acsestwater.5c00328

Nga T. Do*, Duc A. Trinh, Suzanne McGowan, Virginia N. Panizzo, Andrew C. G. Henderson and Andrew R. G. Large,

{"title":"Sources, Pathways, and Mitigation Strategies for Excess Nitrogen Loading in the Red River Delta, Northern Vietnam","authors":"Nga T. Do*, Duc A. Trinh, Suzanne McGowan, Virginia N. Panizzo, Andrew C. G. Henderson and Andrew R. G. Large, ","doi":"10.1021/acsestwater.5c00328","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00328","url":null,"abstract":"The Red River Delta (RRD), Vietnam, like many large river systems worldwide, faces significant pollution due to human activities. Tracing pollution sources, quantifying waste flows, and assessing their distribution across regions remain major challenges. Material Flow Analysis (MFA) is an effective tool to address these issues, providing valuable insights for policymakers and supporting practical mitigation strategies. We employ MFA to assess the potential nitrogen pollution in the RRD estuary, providing an overview of nitrogen sources and pathways and quantifying their relative significance at the provincial level. Our analysis reveals that rice fields and fish ponds are the primary nitrogen sources, accounting for 53–74% and 21–32% of total nitrogen inputs to surface water, respectively. Based on sensitivity analysis, we propose mitigation measures, including a 10% reduction in chemical fertilizer use, improved fishpond drainage at harvest, increasing domestic wastewater collection to 50–70%, and enhancing treatment efficiency for livestock manure to 50%. These measures could reduce total nitrogen loads to the RRD by 13–58%. The accuracy of our simulations is supported by secondary data and field studies. A comparison of the simulated and estimated nitrogen loads suggests substantial nitrogen retention within the delta, estimated at approximately 63%.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5157–5169"},"PeriodicalIF":4.3,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036439","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

Recyclable Senna Obtusifolia Biochar and Cerium Metal Organic Frameworks Derived Biopolymeric Hybrid Material for Enhanced Phosphate Removal 可回收的番泻草生物炭和铈金属有机骨架衍生的生物聚合物杂化材料用于增强磷酸盐去除

IF 4.3

ACS ES&T water Pub Date : 2025-08-11 DOI: 10.1021/acsestwater.5c00226

Sesuraj Sebastin Thomas, Antonysamy Jeyaseelan* and Natrayasamy Viswanathan*,

{"title":"Recyclable Senna Obtusifolia Biochar and Cerium Metal Organic Frameworks Derived Biopolymeric Hybrid Material for Enhanced Phosphate Removal","authors":"Sesuraj Sebastin Thomas, Antonysamy Jeyaseelan* and Natrayasamy Viswanathan*, ","doi":"10.1021/acsestwater.5c00226","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00226","url":null,"abstract":"The present work focuses on pectin (Pec) encapsulated with Senna obtusifolia leaf biochar (SBC) and cerium metal–organic frameworks (Ce-MOFs) namely, the Pec/SBC/Ce-MOFs composite developed by way of the hydrothermal method. Various techniques, including SEM, TGA, DTA, EDAX, and FT-IR, were used to analyze the physicochemical properties of the Pec/SBC/Ce-MOFs composite. Batch experiments were examined the effect of temperature, coexisting ions, contact time, and pH. The Pec/SBC/Ce-MOFs composite reached a maximum phosphate adsorption capacity of 43.00 mg/g within just 30 min. The adsorption process also affected the pH, and among coanions, sulfate had the most significant effect. Isotherm studies indicated that phosphate adsorption followed a multilayer process, aligning with the Freundlich isotherm model. Kinetic investigations found thatIntraparticle diffusion (IPD) and pseudo-second-order (PSO) models best describe the adsorption behavior. Thermodynamic analysis confirmed that phosphate adsorption on the Pec/SBC/Ce-MOFs composite was a spontaneous and endothermic way. The prepared Pec/SBC/Ce-MOFs composite was effective for up to 5 rounds, and its viability in field circumstances was assessed.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5102–5111"},"PeriodicalIF":4.3,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036441","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

Wastewater Surveillance of Salmonella enterica, Campylobacter jejuni, and Norovirus Reveals Potential Underreporting of Disease Cases in the Tri-county Detroit Area, Michigan 废水中肠沙门氏菌、空肠弯曲杆菌和诺如病毒的监测揭示了密歇根州底特律地区三县疾病病例的潜在漏报

IF 4.3

ACS ES&T water Pub Date : 2025-08-11 DOI: 10.1021/acsestwater.5c00506

Heidy Peidro Guzman, Liang Zhao and Irene Xagoraraki*,

{"title":"Wastewater Surveillance of Salmonella enterica, Campylobacter jejuni, and Norovirus Reveals Potential Underreporting of Disease Cases in the Tri-county Detroit Area, Michigan","authors":"Heidy Peidro Guzman, Liang Zhao and Irene Xagoraraki*, ","doi":"10.1021/acsestwater.5c00506","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00506","url":null,"abstract":"Enteric pathogens Salmonella, Campylobacter, and norovirus are the leading causes of gastroenteritis in the United States. The current study applies wastewater-based epidemiology (WBE) to detect and back-estimate the prevalence of these diseases in the tri-county Detroit area (TCDA), Michigan. Concentrations of Salmonella enterica, Campylobacter jejuni, and norovirus (GI and GII) were monitored by ddPCR between January and December 2024 for norovirus and between July and December 2024 for S. enterica and C. jejuni. Average norovirus concentrations peaked during winter and spring months (1.03 × 105 genome copies (gc)/L) and were higher than S. enterica (1.71 × 104 gc/L) and C. jejuni (7.39 × 102 gc/L) concentrations, which peaked primarily during summer months. Based on measurements in wastewater samples, back-estimation of clinical cases revealed that these enteric pathogens are likely underreported in the TCDA when benchmarked against the clinically reported cases. This study highlights the importance of using WBE to track and estimate enteric disease cases, especially for underreported ones. Moreover, we proposed an improved back-estimation model of S. enterica and C. jejuni, incorporating an adjustment factor β to estimate the rate of bacteria’s prevalence in animals and/or animal-derived products. Furthermore, this study demonstrates disparities in the population’s incidence of these enteric pathogens.This paper describes one of the first case estimations of norovirus, Salmonella, and Campylobacter based on wastewater surveillance. A back-estimation formula was optimized by incorporating a parameter estimating the prevalence for bacteria in animals and/or animal-derived products.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5426–5437"},"PeriodicalIF":4.3,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsestwater.5c00506","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036372","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

Intensifying Nitrogen Removal Capacity of Membrane Biofilm Reactor Coupling n-DAMO and Anammox Processes by Dosing Signaling Molecules 投加信号分子增强n-DAMO - Anammox耦合膜生物膜反应器脱氮能力

IF 4.3

ACS ES&T water Pub Date : 2025-08-10 DOI: 10.1021/acsestwater.5c00627

Dongdong Xu, Tao Liu, Yan Lu, Yimeng Li and Jianhua Guo*,

{"title":"Intensifying Nitrogen Removal Capacity of Membrane Biofilm Reactor Coupling n-DAMO and Anammox Processes by Dosing Signaling Molecules","authors":"Dongdong Xu, Tao Liu, Yan Lu, Yimeng Li and Jianhua Guo*, ","doi":"10.1021/acsestwater.5c00627","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00627","url":null,"abstract":"Coupling nitrite- and nitrate-dependent anaerobic methane oxidation (n-DAMO) with anammox processes enables efficient biological nitrogen removal from wastewaters. However, the inherently slow growth and low activity of n-DAMO microorganisms have hindered their broader applications. Here, we investigated the impact of the exogenous quorum sensing signaling molecule dose on the performance of a lab-scale membrane biofilm reactor (MBfR) integrating n-DAMO and anammox. Long-term operation (∼380 days) demonstrated that the dosage of C6-HSL (N-hexanoyl-l-homoserine lactone, 0.2 μM) enhanced the total nitrogen removal rate of MBfR by 59.0%. In situ batch tests showed that the nitrate removal rate of n-DAMO archaea (Candidatus Methanoperedens) and the nitrite removal rate of anammox bacteria (Candidatus Brocadia) increased by 65.6 and 48.5%, respectively, while the nitrite removal rate of n-DAMO bacteria (Candidatus Methylomirabilis) exhibited a modest increase of 15.4%. qPCR and reverse transcription qPCR confirmed that C6-HSL promoted both growth and specific activity of n-DAMO archaea and anammox bacteria, while it had only manorial effects on n-DAMO bacteria. C6-HSL gradually accumulated in the biofilm and was sensed by these nitrogen-converting microorganisms, triggering gene regulatory responses associated with growth and metabolism. Notably, once the biofilm reached a threshold signaling molecule level, additional C6-HSL dosing became unnecessary. The findings reveal a quorum-sensing-mediated strategy to stimulate key microbial populations in n-DAMO–anammox systems, offering a practical approach for accelerating reactor start-up and intensifying its nitrogen removal capacity.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5585–5593"},"PeriodicalIF":4.3,"publicationDate":"2025-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036369","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

Impact of Media Properties on Dissolved Copper Sorption in Stormwater Biofiltration 介质性质对雨水生物过滤中溶解铜吸附的影响

IF 4.3

ACS ES&T water Pub Date : 2025-08-08 DOI: 10.1021/acsestwater.5c00680

Danhui Xin*, Jerod Gray, Tristan Zabala, Allen P. Davis and Elizabeth Fassman-Beck,

{"title":"Impact of Media Properties on Dissolved Copper Sorption in Stormwater Biofiltration","authors":"Danhui Xin*, Jerod Gray, Tristan Zabala, Allen P. Davis and Elizabeth Fassman-Beck, ","doi":"10.1021/acsestwater.5c00680","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00680","url":null,"abstract":"The effectiveness of engineered media in stormwater biofiltration systems depends on their inherent properties that drive contaminant removal mechanisms. Using dissolved copper (Cu), this study identifies the measurable properties of engineered media that determine Cu sorption in batch systems using a representative roadway runoff matrix. An industry standard sand and amendments (regenerated activated carbon, three biochars, and zeolite) were characterized for their physicochemical properties and tested for their sorption affinity (Kd) for dissolved Cu in batch systems. A strong correlation (r = 0.88) was found between cation exchange capacity (CEC), measured by exchangeable cations, and Kd, endorsing the use of CEC as a screening tool for biofiltration materials. Furthermore, the performance of engineered media in column systems was evaluated under high infiltration rates that simulate field conditions. Loading a cumulative rainfall of 275–495 cm to intermittent flow-through column systems demonstrated that volumetric sorption affinity (ρKd) can serve as a comparative metric for assessing the sorption capacity; however, kinetic limitations under high infiltration rates compromised the accuracy of the predictions. Overall, this study identified key measurable properties of engineered media that can predict Cu removal performance in biofiltration systems, bridging the gap between lab-scale experiments and field applications.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5685–5694"},"PeriodicalIF":4.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036275","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

Remediation of Polycyclic Aromatic Hydrocarbons (PAHs) in Coastal Subsurface Water by an Optimized Multilayer Ceramic Composite Superhydrophobic Membrane 优化的多层陶瓷复合超疏水膜修复沿海地下水中多环芳烃(PAHs

IF 4.3

ACS ES&T water Pub Date : 2025-08-08 DOI: 10.1021/acsestwater.5c00555

Somjyoti Basak, Swachchha Majumdar, Sanjib Barma and Sourja Ghosh*,

{"title":"Remediation of Polycyclic Aromatic Hydrocarbons (PAHs) in Coastal Subsurface Water by an Optimized Multilayer Ceramic Composite Superhydrophobic Membrane","authors":"Somjyoti Basak, Swachchha Majumdar, Sanjib Barma and Sourja Ghosh*, ","doi":"10.1021/acsestwater.5c00555","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00555","url":null,"abstract":"Ceramic-composite membrane-based processes emerge as an attractive choice for removal of polyaromatic hydrocarbons (PAHs) from coastal subsurface water. This study is primarily based on the development of a multilayer superhydrophobic composite membrane supported on mullite and rejection efficiency analysis of polyaromatic hydrocarbons from contaminated water. Groundwater samples collected from two different locations in Sundarban coastal areas revealed the presence of high levels of Na+, Cl–, and various metal oxides along with the main contaminant PAHs (6.96–11.24 μg/mL). While the developed composite membranes could effectively remove divalent and multivalent ions, monovalent ions were separated less favorably. The removal efficiency increased with rising transmembrane pressure, achieving up to 97.55% for mildly PAH-contaminated water (6.96 μg/mL). Experimental removal rates were useful for developing predictive models, suggesting that the Spiegler–Kedem–Katchalsky-Film Theory model was suitable for describing PAH rejection in mildly contaminated water, whereas the Film Theory-Extended Nernst–Planck Equation Model better predicted PAH rejection in highly contaminated water. The developed membrane showed structural and PAH removal integrity for up to 50 days of prolonged exposure to contaminated water, depicting excellent durability and revealing the reciprocal interaction among pore statistics, removal rate, and fouling models.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 9","pages":"5495–5508"},"PeriodicalIF":4.3,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036473","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