ACS ES&T water最新文献

Treatment of Ammonia Nitrogen Wastewater by Box–Behnken-Optimized Bubble Discharge Plasma box - behnken优化气泡放电等离子体处理氨氮废水

IF 4.8

ACS ES&T water Pub Date : 2025-04-30 DOI: 10.1021/acsestwater.4c0115610.1021/acsestwater.4c01156

Fan Zhang, Fengbin Sun, Mingjun Gu, Chunhong Yuan, Chengxia Miao, Qin Hou* and Wang Ranran*,

{"title":"Treatment of Ammonia Nitrogen Wastewater by Box–Behnken-Optimized Bubble Discharge Plasma","authors":"Fan Zhang, Fengbin Sun, Mingjun Gu, Chunhong Yuan, Chengxia Miao, Qin Hou* and Wang Ranran*, ","doi":"10.1021/acsestwater.4c0115610.1021/acsestwater.4c01156","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01156https://doi.org/10.1021/acsestwater.4c01156","url":null,"abstract":"In this study, the Box–Behnken design model was used to plan the experiment, and the corresponding model was constructed using Design-Expert software. Using this model, the interaction of various factors in the treatment of high-concentration ammonia nitrogen wastewater using bubble discharge plasma was investigated. Response surface model analysis and regression equation significance tests were conducted to optimize the treatment conditions for high-concentration ammonia nitrogen wastewater treated by plasma. Based on the single-factor test results, voltage, frequency, and air pressure were selected as the influencing factors; the removal rate of ammonia nitrogen was taken as the target value; and the response surface was analyzed. The results revealed the influence of the interaction between these factors on the removal rate of ammonia nitrogen and determined the optimal reaction conditions: voltage 12.1 kV, frequency 165.9 Hz, and pressure 0.01 MPa; under these conditions, the 50 min treatment rate of ammonia nitrogen reached 99.14%. Subsequently, these conditions were validated, and their high efficiencies were demonstrated through degradation kinetics.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2403–2411 2403–2411"},"PeriodicalIF":4.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921201","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

Microplastic Pollution of Stream Water and Sediment in a Tributary of a Major Drinking Water Supplying River in Sri Lanka 斯里兰卡一条主要饮用水供应河流支流中水流和沉积物的微塑料污染

IF 4.8

ACS ES&T water Pub Date : 2025-04-30 DOI: 10.1021/acsestwater.4c0093610.1021/acsestwater.4c00936

G. K. Kapukotuwa, N. Jayasena, K. C. Weerakoon, C. L. Abayasekara and R. S. Rajakaruna*,

{"title":"Microplastic Pollution of Stream Water and Sediment in a Tributary of a Major Drinking Water Supplying River in Sri Lanka","authors":"G. K. Kapukotuwa, N. Jayasena, K. C. Weerakoon, C. L. Abayasekara and R. S. Rajakaruna*, ","doi":"10.1021/acsestwater.4c0093610.1021/acsestwater.4c00936","DOIUrl":"https://doi.org/10.1021/acsestwater.4c00936https://doi.org/10.1021/acsestwater.4c00936","url":null,"abstract":"Microplastic pollution in freshwater systems is a global concern. This study investigated microplastic contamination in the Rawan-Oya Tributary of the Mahaweli River, Sri Lanka’s largest river and a major drinking water source. Water and sediment samples from various areas (forested, rural, urban, and semi-urban) were collected monthly between October 2019 and December 2020. Surface water underwent sieving (5000 and 65 μm), while sediment samples were dissolved in NaCl solution, sieved, oxidized, and subjected to density separation. Microplastics were identified using microscopes and Fourier-transform infrared (FTIR) spectroscopy. A generalized linear model (GLM) analyzed microplastic density variations across sites. Microplastic levels in all tested samples (n = 64 each) ranged from 0.03–0.94 items L–1 in water and 3.1–246.9 items kg–1 in sediments. Concentrations increased along the forested-to-urban gradient (GLM, p < 0.0001). Water had higher microplastic levels in the dry season (GLM, p = 0.002), whereas sediment had more during the rainy season (GLM, p = 0.02). Fibers were the predominant microplastic type, with low-density polyethylene, polyester, and polystyrene being the most common polymers. These findings provide baseline data on microplastic contamination in a tributary of the Mahaweli River, vital for a large Sri Lankan community’s drinking water.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2155–2168 2155–2168"},"PeriodicalIF":4.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921322","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 the Structure–Activity Relationship of Polysilicic Acid Aluminum Composite Coagulants for Multipollutant Elimination and Residual Aluminum Minimization 聚硅酸铝复合混凝剂的构效关系研究

IF 4.8

ACS ES&T water Pub Date : 2025-04-30 DOI: 10.1021/acsestwater.5c0030210.1021/acsestwater.5c00302

Ruoning Wu, Mengjiao Feng, Kangying Guo, Chenxu Wang, Beibei Liu, Qiyun Feng, Qinyan Yue, Yue Gao* and Baoyu Gao*,

{"title":"Unraveling the Structure–Activity Relationship of Polysilicic Acid Aluminum Composite Coagulants for Multipollutant Elimination and Residual Aluminum Minimization","authors":"Ruoning Wu, Mengjiao Feng, Kangying Guo, Chenxu Wang, Beibei Liu, Qiyun Feng, Qinyan Yue, Yue Gao* and Baoyu Gao*, ","doi":"10.1021/acsestwater.5c0030210.1021/acsestwater.5c00302","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00302https://doi.org/10.1021/acsestwater.5c00302","url":null,"abstract":"The structure and hydrolysis of Al-based coagulants critically depend on the synthesis conditions. In this work, a series of polyaluminum silicate chloride (PASiC) coagulants with different basicity (B) and Al/Si ratios were prepared and used to remove multiple pollutants and minimize residual Al. FTIR and particle size analyses revealed that increasing the Si content promoted the formation of Si–O–Al bonds and enhanced the degree of polymerization of hydrolysates. Elevated B values facilitated the generation of mesopolymeric hydrolysates with a high charge density and reactivity. Concurrently, the low content of oligomeric aluminum species significantly reduced the residual dissolved Al. However, excessive Si dosage and B values induced overhydrolysis and gelation, deteriorating coagulation efficacy. Comparative analysis revealed that PASiC outperformed conventional polyaluminum chloride (PAC), achieving high turbidity removal efficiency (93.04%) and maintaining residual total Al below 0.200 mg/L (versus 0.259 mg/L for PAC) and organically bound dissolved Al under 0.026 mg/L. This work establishes a “synthesis–structure–activity” framework for the rational design of inorganic composite coagulants, providing theoretical reference for multipollutant elimination and residual aluminum minimization.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2698–2708 2698–2708"},"PeriodicalIF":4.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921482","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

Fluorescence-Based Indicators of Escherichia coli and Untreated Wastewater: Turbidity Correction and Comparison of In Situ and Benchtop Fluorometers in a Sewage-Polluted Urban River 大肠杆菌和未处理废水的荧光指示剂：浊度校正及污水污染城市河流中原位荧光仪和台式荧光仪的比较

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.4c0109210.1021/acsestwater.4c01092

Trent Biggs*, Natalie Mladenov, Stephany Garcia, Yongping Yuan, Daniel Sousa, Alexandra Grant, Elise Piazza, Trinity Magdalena-Weary, Callie Summerlin and Doug Liden,

{"title":"Fluorescence-Based Indicators of Escherichia coli and Untreated Wastewater: Turbidity Correction and Comparison of In Situ and Benchtop Fluorometers in a Sewage-Polluted Urban River","authors":"Trent Biggs*, Natalie Mladenov, Stephany Garcia, Yongping Yuan, Daniel Sousa, Alexandra Grant, Elise Piazza, Trinity Magdalena-Weary, Callie Summerlin and Doug Liden, ","doi":"10.1021/acsestwater.4c0109210.1021/acsestwater.4c01092","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01092https://doi.org/10.1021/acsestwater.4c01092","url":null,"abstract":"Fluorescence-based sensors of tryptophan (TRP) and chromophoric dissolved organic matter (CDOM) can provide real-time information on water quality. We 1) evaluate the accuracy of benchtop (Aqualog) and in situ (Manta) fluorometers for estimating percent untreated wastewater (pctWW) in laboratory experiments; 2) propose a correction for turbidity; 3) test for correlations between TRP or CDOM and Escherichia coli (E. coli) concentrations in river water samples; and 4) quantify the impact of stormflow on wastewater discharge and bacteria in the Tijuana River. In laboratory experiments, Aqualog TRP correlated closely with pctWW (R2 > 0.98), while Manta TRP increased with pctWW up to 20–50% but then decreased thereafter. In river water samples, Aqualog TRP and CDOM had stronger correlations with E. coli concentrations than did Manta TRP, which correlates with E. coli but the relationship varies by event. Wastewater flow (m3 s–1) increased during storm events, but much less than total storm discharge, so the percent wastewater decreased during storms. Benchtop fluorometers provide reliable estimates of wastewater percentage and bacteria concentrations, while in situ fluorometers indicate wastewater and bacteria presence, but may not provide reliable estimates in highly polluted waters or stormflow without further correction of turbidity, inner filter effects, and variations among storm events.Wastewater and bacteria were sensed using fluorescence during baseflow and stormflow in highly polluted river with new turbidity correction algorithm.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2212–2222 2212–2222"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.4c01092","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921475","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

Mineral-Based Advanced Oxidation Processes for Enhancing the Removal of Antibiotic Resistance Genes from Domestic Wastewater 基于矿物的高级氧化工艺对生活废水中抗生素抗性基因的去除效果研究

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.4c0121310.1021/acsestwater.4c01213

Panagiota Adamou, James Entwistle, David W. Graham and Anke Neumann*,

{"title":"Mineral-Based Advanced Oxidation Processes for Enhancing the Removal of Antibiotic Resistance Genes from Domestic Wastewater","authors":"Panagiota Adamou, James Entwistle, David W. Graham and Anke Neumann*, ","doi":"10.1021/acsestwater.4c0121310.1021/acsestwater.4c01213","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01213https://doi.org/10.1021/acsestwater.4c01213","url":null,"abstract":"Wastewater treatment plants (WWTPs) release antibiotic-resistant bacteria (ARB) and antibiotic-resistant genes (ARGs) into the environment. Advanced oxidation processes (AOPs) can remove ARB and ARGs, but they often require impractically high chemical or energy use. Here, we explore a low-energy AOP that uses Fe-bearing clay mineral (NAu-1) either combined with H2O2 (H2O2/NAu-1) or as prereduced structural Fe (rNAu-1) to degrade selected ARGs (i.e., tetM, tetQ, and blaOXA-10), int1 (a mobile genetic element), and the 16S rRNA gene in postsecondary WWTP effluents. Addition of H2O2/NAu-1 significantly increased tetM and int1 removals relative to UV irradiation and H2O2/UV (p ≤ 0.02). Removals increased with greater H2O2 doses and contact times, reaching maximum values of 1.2 and 2.3 log units at H2O2 doses of 0.26 and 10 mM and contact times of 4 and 8 h, respectively. Bacterial regrowth after 24 h of contact was probably due to H2O2 depletion. However, the addition of rNAu-1 achieved the highest removals, up to 2.9 log units after 0.5 h, and suppressed bacterial regrowth over 24 h. Similar removals were observed with rNAu-1 under oxic and anoxic conditions. Results show that mineral-based AOPs offer the potential for elevated ARG removal and lower chemical and energy demands in tertiary wastewater treatment.This work reports rapid and effective bacteria and antimicrobial resistance gene removal using iron-bearing clay mineral. This advanced oxidation process holds potential for the sustainable tertiary treatment of wastewater.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2310–2321 2310–2321"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.4c01213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921436","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

Spatial and Temporal Variations in Aquatic Organic Matter Composition in UK Surface Waters. 英国地表水水体有机质组成的时空变化

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 eCollection Date: 2025-05-09 DOI: 10.1021/acsestwater.4c01113

Catherine S Moody, Nicholle G A Bell, C Logan Mackay, Ezra Kitson

{"title":"Spatial and Temporal Variations in Aquatic Organic Matter Composition in UK Surface Waters.","authors":"Catherine S Moody, Nicholle G A Bell, C Logan Mackay, Ezra Kitson","doi":"10.1021/acsestwater.4c01113","DOIUrl":"https://doi.org/10.1021/acsestwater.4c01113","url":null,"abstract":"Drinking water is becoming more difficult to treat, especially in the UK, due to the changing concentration and composition of aquatic dissolved organic matter (DOM). The spatial and temporal variations in the DOM composition are not well understood. This study investigated how DOM composition varies along a north/south gradient in the UK, over four years, and between headwaters and reservoirs. There were trends in DOM composition metrics from north to south; carbohydrate and peptide-like compounds were lower in northern sites, while lipid-like compounds were lower further south, suggesting different sources of DOM in north/south catchments. DOM collected in Autumn 2021, after a Summer of low rainfall, was more aromatic, less oxidized, and more diverse than DOM collected in 2018-2020. Decreased lipid content and increased oxy-aromatic content occurred in Autumn, at the end of the plant growing season, when increased rainfall rewets catchments and mobilizes soil OM into surface waters. These seasonal changes in DOM composition coincide with increased DOM concentrations in raw drinking water, leading to more challenges for drinking water treatment, especially as climate change alters rainfall distribution in the UK.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2233-2243"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12070417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082730","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

Plastic Waste-Derived Modified Low-Density Polyethylene Membrane for Solar-Assisted Degradation of Antipyretic Drug Paracetamol from Water Resources 塑料废弃物改性低密度聚乙烯膜太阳能辅助降解水资源中退热药扑热息痛的研究

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.5c0027010.1021/acsestwater.5c00270

Megha Vijay, Manjinder Kour, Sapana Jadoun, Nirmala Kumari Jangid*, Jaya Dwivedi and Swapnil Sharma,

{"title":"Plastic Waste-Derived Modified Low-Density Polyethylene Membrane for Solar-Assisted Degradation of Antipyretic Drug Paracetamol from Water Resources","authors":"Megha Vijay, Manjinder Kour, Sapana Jadoun, Nirmala Kumari Jangid*, Jaya Dwivedi and Swapnil Sharma, ","doi":"10.1021/acsestwater.5c0027010.1021/acsestwater.5c00270","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00270https://doi.org/10.1021/acsestwater.5c00270","url":null,"abstract":"The present study focused on novel plastic waste-derived modified, low-density polyethylene membranes for the solar-light-assisted degradation of the antipyretic drug paracetamol. The LDPE polymeric membrane was extracted from plastic waste and hybridized with synthesized ZnO nanoparticles to fabricate the LDPE/ZnO polymeric membrane. Fabricated ZnO nanoparticles, LDPE, and LDPE/ZnO polymeric membranes were characterized by various techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), etc. The developed membrane was further used for the photocatalytic degradation of paracetamol. The reaction between paracetamol and coupling agent (1-Naphthol) produced a colored compound in the form of the azo compound as 4-{[(4-hydroxyphenyl)diazenyl]naphthalene-1-ol} (HDPN) was characterized by UV–visible spectroscopy, FTIR, and nuclear magnetic resonance spectroscopy (NMR) and used for degradation studies of the drug. The ZnO NPs (0.6 g) incorporated in the LDPE polymeric membrane were responsible for effective degradation of the 200 μg/L concentration drug at neutral pH 7 due to a smaller band gap of 2.50 eV. The DFT also confirmed degradation studies through the interaction of LDPE/ZnO polymeric membrane with HDPN of paracetamol drug. The developed plastic waste-derived modified low-density polyethylene membrane shows a perfect example of circular economy.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2684–2697 2684–2697"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921513","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

Insight into Seasonal Dynamics of DOM and Analysis of Various Factors Influencing Microbial Communities from Typical Water Bodies: Based on Gray Influence Analysis and Structural Equation Modeling 基于灰色影响分析和结构方程建模的典型水体DOM季节性动态及影响微生物群落的各种因素分析

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.5c0004410.1021/acsestwater.5c00044

Feng Yang, Junwen Hou, Qingqian Li, Lei Nie, Huibin Yu and Yonghui Song*,

{"title":"Insight into Seasonal Dynamics of DOM and Analysis of Various Factors Influencing Microbial Communities from Typical Water Bodies: Based on Gray Influence Analysis and Structural Equation Modeling","authors":"Feng Yang, Junwen Hou, Qingqian Li, Lei Nie, Huibin Yu and Yonghui Song*, ","doi":"10.1021/acsestwater.5c0004410.1021/acsestwater.5c00044","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00044https://doi.org/10.1021/acsestwater.5c00044","url":null,"abstract":"This study investigates seasonal dynamics of dissolved organic matter (DOM) and their impacts on microbial communities across five aquatic environments in the Liaohe River Basin, China. Spatial-temporal variations in DOM composition and bacterioplankton community structures were evaluated using excitation–emission matrix (EEM) spectroscopy, parallel factor (PARAFAC) analysis, 16S rRNA amplicon sequencing, gray influence analysis (GINA), and structural equation modeling (SEM). Principal component analysis revealed pronounced seasonal variations of DOM in urban rivers and estuaries, whereas DOM dynamics in lakes were primarily driven by precipitation. Reservoir DOM showed significant fluctuations aligned with summer floods. GINA identified eutrophication-related DOM component C5 as the primary factor influencing microbial communities in lakes and reservoirs, while industrially derived DOM component C6 markedly affected bacterioplankton in river environments. SEM further quantified these influences, highlighting temperature and industrial inputs as critical drivers. These findings provide crucial insights into DOM-microbial interactions, emphasizing adaptive water management strategies tailored to distinct DOM sources and seasonal conditions to preserve ecological health and water quality in complex catchments.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2467–2478 2467–2478"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921478","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

Porosity of Activated Carbon in Water Remediation: A Bibliometric Review and Overview of Research Perspectives 活性炭在水修复中的孔隙度：文献计量学综述及研究前景综述

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.5c0010010.1021/acsestwater.5c00100

Maurício Quintas Salamba, Rafael Leandro Fernandes Melo, Francisco Izaias da Silva Aires, José Roberto de Matos Filho, Dayana Nascimento Dari, Fernando Levi Luz Lima, Sandyelle Ferreira Alcântara Araújo, Letícia da Costa Silva, Lidya Fernandes da Silva, Ernesto Alexandre Chirindza and José Cleiton Sousados Santos*,

{"title":"Porosity of Activated Carbon in Water Remediation: A Bibliometric Review and Overview of Research Perspectives","authors":"Maurício Quintas Salamba, Rafael Leandro Fernandes Melo, Francisco Izaias da Silva Aires, José Roberto de Matos Filho, Dayana Nascimento Dari, Fernando Levi Luz Lima, Sandyelle Ferreira Alcântara Araújo, Letícia da Costa Silva, Lidya Fernandes da Silva, Ernesto Alexandre Chirindza and José Cleiton Sousados Santos*, ","doi":"10.1021/acsestwater.5c0010010.1021/acsestwater.5c00100","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00100https://doi.org/10.1021/acsestwater.5c00100","url":null,"abstract":"The porosity of activated carbon is crucial for its efficiency in water remediation, directly influencing the adsorption and removal of contaminants. With a structure composed of micro-, meso-, and macropores, its purification capacity is directly related to its specific surface area. We conducted a bibliometric analysis using the Web of Science database and relevant keywords (porosity, water remediation, and activated carbon) in refining 124 articles. Tools such as Vosviewer, Bibliometrics, and Citespace were employed to identify the field’s most influential journals, countries, institutions, and authors. The keyword analysis revealed a growing interest in optimizing activated carbon, focusing on heavy metal removal and enhancing processes, such as adsorption and pyrolysis. However, one of the identified challenges was the mechanical stability of the material, emphasizing the importance of research into new matrices to enable large-scale application. The clusters generated by Bibliometrics and Citespace highlighted emerging trends, such as using polymers and nanoparticles for pollutant capture and developing chemical activation techniques to improve material efficiency. The results reinforce the need for more sustainable and innovative strategies for water treatment, providing valuable insights for future research and technological applications.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2070–2086 2070–2086"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsestwater.5c00100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921411","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

Unlocking Oxidative Potential of Ferrate (VI): Nanoscale Zerovalent Iron Loaded Sludge Biochar Mediated Nonradical Sulfonamides Degradation via Valence Conversion 解锁高铁酸盐的氧化潜能（VI）：纳米级零价铁负载污泥生物炭通过价转换介导非自由基磺胺类降解

IF 4.8

ACS ES&T water Pub Date : 2025-04-29 DOI: 10.1021/acsestwater.5c0018910.1021/acsestwater.5c00189

Zhikang Deng, Yongfei Ma, Jinyao Zhu, Chenyu Zeng, Yifan Liu and Zulin Zhang*,

{"title":"Unlocking Oxidative Potential of Ferrate (VI): Nanoscale Zerovalent Iron Loaded Sludge Biochar Mediated Nonradical Sulfonamides Degradation via Valence Conversion","authors":"Zhikang Deng, Yongfei Ma, Jinyao Zhu, Chenyu Zeng, Yifan Liu and Zulin Zhang*, ","doi":"10.1021/acsestwater.5c0018910.1021/acsestwater.5c00189","DOIUrl":"https://doi.org/10.1021/acsestwater.5c00189https://doi.org/10.1021/acsestwater.5c00189","url":null,"abstract":"The novel mechanism of intramolecular redox equilibration between nanoscale zerovalent iron (n-ZVI) and ferrate (VI) [Fe (VI)] facilitates the formation of highly reactive intermediate-valence metal species. In this study, sludge biochar (SBC) was used as a carrier to form n-ZVI@SBC, which significantly improved the activation of Fe (VI). Comprehensive characterizations confirmed the successful loading of n-ZVI onto SBC via liquid-phase reduction. The optimized Fe (VI)/n-ZVI@SBC system achieved high removal efficiency for sulfamethoxazole (SMX) (91.30%) and broad-spectrum degradation of sulfonamides (SAs) (67.48–99.60%) within 3 min. However, the system showed limited tolerance to high concentrations of HCO3–, CO32–, and humic acid due to hydrolysis and competitive effects. Mechanistic studies revealed that high-valent iron species [Fe (V)/Fe (IV)] dominated the degradation process, with electron transfer also playing a role. The –OH groups and n-ZVI loading sites were identified as key regions for adsorption and activation. This system demonstrated robust performance in natural water matrices and enhanced flocculation through Fe (VI) decomposition products. Cyclic and fixed-bed experiments confirmed its reliability and sustainability. This study presents an innovative strategy to enhance Fe (VI) oxidation properties, offering a promising solution for remediation of antibiotic-contaminated waters.","PeriodicalId":93847,"journal":{"name":"ACS ES&T water","volume":"5 5","pages":"2648–2660 2648–2660"},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143921441","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