ACS ES&T water最新文献_第9页

Nutrient Condition-Induced Mechanism Shift of Microbial Manganese Oxidation: Significance of Catalase 营养条件诱导微生物锰氧化的机制转变：过氧化氢酶的意义

IF 4.8

ACS ES&T water Pub Date : 2025-03-25 DOI: 10.1021/acsestwater.4c0125310.1021/acsestwater.4c01253

Jing Qi, Zemiao Lin, Xi Wang, Rashmi Koju, Yu Zhao, Hongwei Yu, Baiwen Ma, Chengzhi Hu* and Jiuhui Qu,

{"title":"Nutrient Condition-Induced Mechanism Shift of Microbial Manganese Oxidation: Significance of Catalase","authors":"Jing Qi, Zemiao Lin, Xi Wang, Rashmi Koju, Yu Zhao, Hongwei Yu, Baiwen Ma, Chengzhi Hu* and Jiuhui Qu, ","doi":"10.1021/acsestwater.4c0125310.1021/acsestwater.4c01253","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01253https://doi.org/10.1021/acsestwater.4c01253","url":null,"abstract":"Manganese-oxidizing bacteria facilitate manganese oxide formation through direct and indirect oxidation pathways. While nutrient conditions are known to significantly influence microbial metabolism, their impact on microbial manganese oxidation remains unclear. In this study, we explored the microbial manganese oxidation process under varying nutrient conditions. Under eutrophic and mesotrophic conditions, Mn(II) oxidation primarily occurred during the stationary phase, whereas no manganese oxides were detected under oligotrophic conditions. Extracellular superoxide radicals (O2•–) were identified as the primary drivers of the manganese oxidation process under oligotrophic conditions. However, O2•– reacted with Mn(II) to form hydrogen peroxide (H2O2) and Mn(III), with subsequent consumption of H2O2 in the reaction with Mn(III), regenerating Mn(II). The addition of catalase (CAT) significantly enhanced Mn(III) production under oligotrophic conditions, reaching a maximum UV258 value of 0.24 at 16 h, suggesting that CAT could promote Mn(III) accumulation by consuming H2O2, thus increasing the rate of manganese oxide formation. In contrast, under nutrient-rich conditions, manganese oxidation was primarily mediated by multicopper oxidases, where Mn(III) was further oxidized to manganese oxides. Our work highlights the critical role of nutrient conditions in microbial manganese oxidation, which can significantly affect the transformation of manganese in the environment and the effectiveness of water treatment processes.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1907–1915 1907–1915"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818927","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

Regional Variations in Nitrous Oxide in the Indian Groundwater: Influence of Agricultural Practices, Irrigation, and Rainfall Patterns 印度地下水中氧化亚氮的区域变化：农业实践、灌溉和降雨模式的影响

IF 4.8

ACS ES&T water Pub Date : 2025-03-25 DOI: 10.1021/acsestwater.4c0062510.1021/acsestwater.4c00625

V. V. S. S. Sarma*, Mathieu Sebilo, B. S. K. Kumar, B. Sridevi, V. Vaury, F. Guerin, L. Ruiz, J. Riotte and D. Cardinal,

{"title":"Regional Variations in Nitrous Oxide in the Indian Groundwater: Influence of Agricultural Practices, Irrigation, and Rainfall Patterns","authors":"V. V. S. S. Sarma*, Mathieu Sebilo, B. S. K. Kumar, B. Sridevi, V. Vaury, F. Guerin, L. Ruiz, J. Riotte and D. Cardinal, ","doi":"10.1021/acsestwater.4c0062510.1021/acsestwater.4c00625","DOIUrl":"https://doi.org/10.1021/acsestwater.4c00625https://doi.org/10.1021/acsestwater.4c00625","url":null,"abstract":"Intensified agricultural practices, particularly the increased use of nitrogen fertilizers, are fueling the rise of nitrous oxide (N2O) in groundwater. This gas is produced through the nitrification/denitrification of inorganic nitrogen in the groundwater. Based on combined chemical and isotopic analyses of nitrate (NO3–) and chemical analysis of N2O, we present the first-ever evidence for widespread denitrification-driven N2O accumulation in Indian groundwater that often exceeds 25 times the saturation level. This phenomenon is particularly concerning in regions where low precipitation is received with intensive groundwater irrigation, leading to an inadvertent accumulation of N2O in the groundwater. The emission factor for groundwater (EF5g) from the agricultural soils of India is significantly lower (0.00067) than the global mean values (0.008), suggesting that indirect fluxes of N2O from the Indian soils are lower than the global mean. Implementing sustainable agricultural practices and maximum feasible control measures could further reduce indirect N2O emissions from agricultural soils and their associated environmental consequences.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1557–1568 1557–1568"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818932","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

Assessing Passive Sampling for the Monitoring of E. coli and Cryptosporidium spp. in Environmental Waters. 环境水体中大肠杆菌和隐孢子虫被动采样监测的评价。

IF 4.8

ACS ES&T water Pub Date : 2025-03-25 eCollection Date: 2025-04-11 DOI: 10.1021/acsestwater.4c01029

Ilya Law, Erin Becker, Brandon S Spoja, Katrina Kobal, Martha Yiridoe, Abdul Alashraf, Beth L Parker, David T McCarthy, Heather M Murphy

{"title":"Assessing Passive Sampling for the Monitoring of E. coli and Cryptosporidium spp. in Environmental Waters.","authors":"Ilya Law, Erin Becker, Brandon S Spoja, Katrina Kobal, Martha Yiridoe, Abdul Alashraf, Beth L Parker, David T McCarthy, Heather M Murphy","doi":"10.1021/acsestwater.4c01029","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01029","url":null,"abstract":"Passive sampling has shown promise as an alternative approach for monitoring of pathogens in aquatic matrices. We conducted two controlled experiments to compare the efficacy of membrane passive sampling to composite sampling in both wastewater and surface water for the detection of Escherichia coli and Cryptosporidium. We also investigated the relative uptake of E. coli and Cryptosporidium onto membrane passive samplers over time. Both sampling methods returned positive detections of E. coli at all deployment times (4, 8, 24, 48, 72, and 96 h) in both water matrices. Passive sampling for Cryptosporidium showed similar detection rates as composite samples in surface water (31% passive; 41% composite) and wastewater (76% passive; 86% composite). We found significant linear uptake of E. coli onto passive samplers up to 96 h in surface water (R 2 = 0.932; p = 0.002). In wastewater, maximum passive sampler uptake of E. coli was reached after 24 h. For Cryptosporidium, linear uptake was observed up to 96 h for both surface water (R 2 = 0.805; p = 0.015) and wastewater (R 2 = 0.877; p = 0.006). Our results support that membrane passive samplers may be used for the detection of Cryptosporidium and E. coli in surface waters for up to 96 h.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1673-1682"},"PeriodicalIF":4.8,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11998927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144038184","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

Multipoint Pollution Localization Method for Surface Water Based on Time-Frequency Analysis 基于时频分析的地表水多点污染定位方法

IF 4.8

ACS ES&T water Pub Date : 2025-03-24 DOI: 10.1021/acsestwater.4c0098110.1021/acsestwater.4c00981

Zhixiang Zhang, Qianxuan Zhang, Jieqiang Liu and Qingbo Li*,

{"title":"Multipoint Pollution Localization Method for Surface Water Based on Time-Frequency Analysis","authors":"Zhixiang Zhang, Qianxuan Zhang, Jieqiang Liu and Qingbo Li*, ","doi":"10.1021/acsestwater.4c0098110.1021/acsestwater.4c00981","DOIUrl":"https://doi.org/10.1021/acsestwater.4c00981https://doi.org/10.1021/acsestwater.4c00981","url":null,"abstract":"The localization of surface water pollution involves the inversion of source parameters such as positions, amounts, and duration based on monitoring data. This process is crucial for formulating remedial strategies and identifying responsible parties during sudden water pollution incidents. Existing models target single-source localization but fail in multisource scenarios with continuous, mixed discharges, as concentration superposition at monitoring points distorts dispersion models, causing nonunique solutions, significant deviations, and degraded accuracy. This study proposes a time-frequency analysis method to address multipoint surface water pollution source localization under complex scenarios involving instantaneous and continuous discharges, transforming the hydrodynamic inverse problem into a time-domain simulation and frequency-domain optimization framework. It constructs a discrete convolution dynamic equation to uniformly model forward diffusion process. Coupled with the Fourier frequency-domain mapping and the position regularization loss function, the method employs the African Vultures Optimization Algorithm (AVOA) for parallel optimization, achieving high-precision inversion of source parameters for pollution localization. Experimental results demonstrate relative errors below 10% for all parameters in single- and multisource scenarios, and validation on the U.S. Truckee river tracer data set achieved a coefficient of determination (R2) exceeding 0.95, confirming the method’s reliability for practical applications.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1640–1651 1640–1651"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814734","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

Potential Impacts of Wildfires on Regional Water Quality: A Case Study of the “8·19” Forest Wildfire in Jiangjin, Chongqing 野火对区域水质的潜在影响——以重庆江津“8·19”森林野火为例

IF 4.8

ACS ES&T water Pub Date : 2025-03-24 DOI: 10.1021/acsestwater.4c0082610.1021/acsestwater.4c00826

Qixin Hu, Chao He, Lei Zhang, Yuming Su, Xin Zou and Lu Zhang*,

{"title":"Potential Impacts of Wildfires on Regional Water Quality: A Case Study of the “8·19” Forest Wildfire in Jiangjin, Chongqing","authors":"Qixin Hu, Chao He, Lei Zhang, Yuming Su, Xin Zou and Lu Zhang*, ","doi":"10.1021/acsestwater.4c0082610.1021/acsestwater.4c00826","DOIUrl":"https://doi.org/10.1021/acsestwater.4c00826https://doi.org/10.1021/acsestwater.4c00826","url":null,"abstract":"This study examines the impacts of forest wildfires on water quality using the Chongqing August 19, 2022 forest wildfire as a representative case. By integrating water quality, meteorological, and atmospheric pollutant (black carbon and organic matter) data sets, we employ spatial statistical analysis, HYSPLIT airflow trajectory modeling, and the Potential Source Contribution Function (PSCF) model to investigate regional water quality variations before and after the wildfire event. The results reveal significant water quality degradation during August-September 2022, manifested by Total nitrogen concentrations surging to 3.33 mg/L in some areas, turbidity peaking at 111.7 NTU, and a marked reduction in surface water supplies classified as class III or higher. PSCF analysis shows consistent patterns between the north–northwest pollutant transport direction, elevated BC/OM levels, and water quality impairment zones. Our findings highlight both direct deposition effects from wildfire pollutant and indirect atmospheric pollution pathways. This research underscores the urgent need for integrated watershed management strategies that account for both direct and secondary wildfire impacts in the context of ongoing climate change.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1569–1581 1569–1581"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814655","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

Diatom Lensless Imaging Using Laser Scattering and Deep Learning. 基于激光散射和深度学习的硅藻无透镜成像。

IF 4.8

ACS ES&T water Pub Date : 2025-03-24 eCollection Date: 2025-04-11 DOI: 10.1021/acsestwater.4c01186

Ben Mills, Michalis N Zervas, James A Grant-Jacob

引用次数: 0

Divergent Effects of Agriculture on River Methane and Carbon Dioxide Concentrations and Emissions: Insights from Multiple Techniques 农业对河流甲烷和二氧化碳浓度和排放的不同影响：来自多种技术的见解

IF 4.8

ACS ES&T water Pub Date : 2025-03-24 DOI: 10.1021/acsestwater.4c0127410.1021/acsestwater.4c01274

Yuhong Li, Mingshi Wang, Dong Zhang, Kebing Chen, Ke Pan, Chen Ye, Siyue Li, Wei Ma, Wenshi Zhang, Hao Jiang* and Quanfa Zhang,

{"title":"Divergent Effects of Agriculture on River Methane and Carbon Dioxide Concentrations and Emissions: Insights from Multiple Techniques","authors":"Yuhong Li, Mingshi Wang, Dong Zhang, Kebing Chen, Ke Pan, Chen Ye, Siyue Li, Wei Ma, Wenshi Zhang, Hao Jiang* and Quanfa Zhang, ","doi":"10.1021/acsestwater.4c0127410.1021/acsestwater.4c01274","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01274https://doi.org/10.1021/acsestwater.4c01274","url":null,"abstract":"This study examined the impacts of agriculture on methane (CH4) and carbon dioxide (CO2) dynamics in an agricultural river in eastern China. The dissolved CH4 concentrations (dCH4; 422 ± 188 nmol L–1 in summer and 193 ± 190 nmol L–1 in winter) and CH4 emissions (6430 ± 11,650 μmol m–2 d–1 in summer and 396 ± 1190 μmol m–2 d–1 in winter) were closely associated with agriculture-enhanced allochthonous CH4 inputs and methanogenesis by methanogens and algae. The shallow water depth and low flow velocity of the plain river were favorable for bubble release. The pressure of CO2 (pCO2) values were substantially higher than the atmospheric level, and the CO2 emission rates were 96 ± 159 mmol m–2 d–1 in summer and 27 ± 64 mmol m–2 d–1 in winter. The pCO2 and CO2 emissions were largely regulated by the pH, which was not particularly relevant to agricultural activities. Notably, methanotrophs contributed significantly to the pCO2 in the winter. Therefore, agriculture could generate more impacts on fluvial CH4 than on CO2, which is crucial for understanding the anthropogenic impacts on fluvial carbon emissions and the simulation of carbon budgets in global biogeochemical models.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1930–1940 1930–1940"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814656","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

Diatom Lensless Imaging Using Laser Scattering and Deep Learning 基于激光散射和深度学习的硅藻无透镜成像

IF 4.8

ACS ES&T water Pub Date : 2025-03-24 DOI: 10.1021/acsestwater.4c0118610.1021/acsestwater.4c01186

Ben Mills, Michalis N. Zervas and James A. Grant-Jacob*,

{"title":"Diatom Lensless Imaging Using Laser Scattering and Deep Learning","authors":"Ben Mills, Michalis N. Zervas and James A. Grant-Jacob*, ","doi":"10.1021/acsestwater.4c0118610.1021/acsestwater.4c01186","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01186https://doi.org/10.1021/acsestwater.4c01186","url":null,"abstract":"We present a novel approach for imaging diatoms using lensless imaging and deep learning. We used a laser beam to scatter off samples of diatomaceous earth (diatoms) and then recorded and transformed the scattered light into microscopy images of the diatoms. The predicted microscopy images gave an average SSIM of 0.98 and an average RMSE of 3.26 as compared to the experimental data. We also demonstrate the capability of determining the velocity and angle of movement of the diatoms from their scattering patterns as they were translated through the laser beam. This work shows the potential for imaging and identifying the movement of diatoms and other microsized organisms in situ within the marine environment. Implementing such a method for real-time image acquisition and analysis could enhance environmental management, including improving the early detection of harmful algal blooms.Monitoring diatoms is important in understanding the health of the marine environment. This study documents the use of lensless sensing to image samples of diatoms and quantify their movement.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1814–1820 1814–1820"},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.4c01186","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The pH Dependence of O3/Mn(II) Synergy for the Reactive Species Evolution and Micropollutant Degradation O3/Mn（II）协同作用对反应物种进化和微污染物降解的pH依赖性

IF 4.8

ACS ES&T water Pub Date : 2025-03-23 DOI: 10.1021/acsestwater.4c0108610.1021/acsestwater.4c01086

Wen-Long Wang, Peng-Hui Liu, Jung-Hyun Son, Hang Su, Min-Yong Lee, Hong-Ying Hu, Qian-Yuan Wu* and Uwe Hübner,

{"title":"The pH Dependence of O3/Mn(II) Synergy for the Reactive Species Evolution and Micropollutant Degradation","authors":"Wen-Long Wang, Peng-Hui Liu, Jung-Hyun Son, Hang Su, Min-Yong Lee, Hong-Ying Hu, Qian-Yuan Wu* and Uwe Hübner, ","doi":"10.1021/acsestwater.4c0108610.1021/acsestwater.4c01086","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01086https://doi.org/10.1021/acsestwater.4c01086","url":null,"abstract":"The combination of ozonation and Mn(II) (O3/Mn(II)) is expected to synergistically eliminate recalcitrant organic micropollutants in water. However, the decay of O3, formation of •OH and reactive manganese species (RMnSs), and synergism in micropollutant degradation have not been comprehensively understood. Herein, the synergism of O3 and Mn(II) was observed to be pH-dependent. Compared to ozonation alone, O3/Mn(II) preferentially formed Mn(V and VI) and slightly increased •OH yield (from 0.22 to 0.30) at acidic pH 4–5, while it preferentially formed Mn(VII) and significantly increased OH yield (from 0.52 to 0.74) at circumneutral pH 6–7. Thereafter, O3/Mn(II) prominently increased RMnS exposure at acidic pH, while it dramatically diminished O3-exposurse to increase •OH exposure at circumneutral pH. As a result, O3/Mn(II) outperformed ozonation alone for the degradation of various O3-resistant micropollutants (3.7–7.9 times faster). For example, the RMnSs (82.7% contribution) and •OH (84.2% contribution) were the dominant contributors to the degradation of the isothiazolinone biocide (5-chloro-2-methyl-4-isothiazolin-3-one) at acidic and circumneutral pH, respectively. Mn(II) can enhance the removal of O3-resistant micropollutants in relatively clean waters (e.g., tap water), but its effectiveness was limited in more contaminated waters (e.g., WWTP effluent). These findings support the practice and pH optimization of the O3/Mn(II) in various water types.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1706–1715 1706–1715"},"PeriodicalIF":4.8,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814559","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

Polyacrylamide-Modified Basalt Fibers for Passive Reclamation of Oil Sands Process Water 聚丙烯酰胺改性玄武岩纤维被动回收油砂工艺水

IF 4.8

ACS ES&T water Pub Date : 2025-03-20 DOI: 10.1021/acsestwater.4c0113210.1021/acsestwater.4c01132

Muhammad Arslan, Akeem Bello, Ahmed Y. A. Mohamed, Muhammad Usman, Zhiren Wu and Mohamed Gamal El-Din*,

{"title":"Polyacrylamide-Modified Basalt Fibers for Passive Reclamation of Oil Sands Process Water","authors":"Muhammad Arslan, Akeem Bello, Ahmed Y. A. Mohamed, Muhammad Usman, Zhiren Wu and Mohamed Gamal El-Din*, ","doi":"10.1021/acsestwater.4c0113210.1021/acsestwater.4c01132","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01132https://doi.org/10.1021/acsestwater.4c01132","url":null,"abstract":"This study investigates the potential of cationic polyacrylamide (CPAM)-modified basalt fibers (BF) as biocarriers for biofilm-based organic transformation in oil sands process-affected water (OSPW) in a lab-scale investigation. The fibers underwent Soxhlet extraction and epoxy treatment for CPAM coating, enhancing their hydrophilicity and surface charge, which improved microbial attachment and facilitated biodegradation of naphthenic acids (NAs), reducing their concentrations from 70.4 to 25.5 mg/L over 108 weeks. Results illustrated rapid removal of organics in the initial phase, likely due to NAs sorption onto the BF surface, followed by slower removal in subsequent stages supported by biodegradation. The desorption study confirmed that biodegradation was the dominant mechanism. Fourier-Transform Infrared Spectroscopy and synchronous fluorescence spectroscopy indicated chemical transformations on BF along with a significant decrease in fluorescent organic compounds. Molecular weight analysis confirmed the transformation of complex organics into smaller molecules. Microtox showed a significant reduction in toxicity from over 50% to approximately 15–20%. eDNA sequencing revealed aerobic bacteria in outer zones and anaerobic microbes in the middle and core, while Cercomonas sp. was a dominant eukaryotic player facilitating organics attenuation. These findings suggest the use of BF in treatment wetlands or end pit lakes for OSPW treatment, offering a sustainable solution.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 4","pages":"1755–1767 1755–1767"},"PeriodicalIF":4.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814529","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