Heavy-Metal Ions Control on PFAS Adsorption on Goethite in Aquatic Systems DOI

Aaifa Chaudhary,

Muhammad Usman, Wei Cheng

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(45), С. 20235 - 20244

Опубликована: Окт. 31, 2024

Per- and polyfluoroalkyl substances (PFAS) are ubiquitous environmental contaminants that often co-occur with heavy metals. Despite their prevalence, the mobility of PFAS in complex, multicomponent systems, particularly at molecular scale, remains poorly understood. The vast diversity low concentrations alongside anthropogenic natural underscore need for integrating mechanistic insights into sorption models. This study explores influence metal cations (Cu(II), Cd(II), Fe(II)) on adsorption four common (PFOA, PFOS, PFDA, GenX) onto goethite (α-FeOOH), a iron (oxyhydr)oxide both aquatic terrestrial environments. was highly dependent type, pH, ion concentration, surface complexation model effectively predicting these interactions. Cu(II) Cd(II) enhanced PFOS PFDA via ternary while slightly reducing PFOA GenX adsorption. Under anoxic conditions, Fe(II) significantly increased all PFAS, showing reactivity greater than those Cd(II). Additionally, organic matter mobility, although groundwater may counteract this by enhancing retention. These findings highlight key role transport offer critical behavior oxic-anoxic interfaces.

Язык: Английский

Occurrence and profiles of perfluoroalkyl substances in wastewaters of chemical industrial parks and receiving river waters: Implications for the environmental impact of wastewater discharge DOI
Shuai Sun, Mengyuan Liang,

Deling Fan

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 945, С. 173993 - 173993

Опубликована: Июнь 13, 2024

Язык: Английский

Процитировано

3
PFAS distribution in cascade derived foam at wastewater treatment plants: The role of non-linear drainage, collapse induced enrichment, and implications for removal DOI
Ethan S. Coffin, Donald M. Reeves, Daniel P. Cassidy

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 477, С. 135334 - 135334

Опубликована: Июль 26, 2024

Язык: Английский

Процитировано

3
Multifunctional Potential of Dandelion-like Structured Foam for Self-Cleaning, Oil/Water Separation, and Wearable Sensing DOI
Surya Kanta Ghadei,

Kamatchi Jothiramalingam Sankaran,

Ramasamy Sakthivel

и другие.

ACS Applied Nano Materials, Год журнала: 2024, Номер 7(15), С. 17898 - 17912

Опубликована: Июль 30, 2024

Integrating 1D nanomaterials into 3D arrays or hierarchical structures is crucial to unlocking their complete potential in functional applications. This work highlights the significant influence of pH variations on morphological evolution three-dimensional zinc oxide foams (ZOFs) at relatively low temperatures, leading formation diverse with varying aspect ratios and dimensions. Our findings underscore role alkaline conditions fostering dandelion-like nanostructures, attributed intricate interplays reaction kinetics Ostwald ripening processes. Furthermore, ZOF demonstrates applications self-cleaning, oil/water separation, human motion sensing. The optimized exhibit superhydrophobicity (water contact angle = 153 ± 2°) showcasing self-cleaning ability enhanced oil–water separation performance following surface functionalization. exhibits exceptional oil adsorption capacity (10–55 g/g) superior stability, making it suitable for separation. our investigations showcase biocompatibility practical applicability both underwater, highlighting its efficacy environmental remediation scenarios. Transitioning wearable sensing, outstanding mechanical (compression strength increases by more than 130%) piezoresistive characteristics (gauge factor 1.036), precisely capturing a broad spectrum movements tactile stimuli rapid response times (∼60 ms). stability over 10,000 continuous tapping cycles, indicating material's maintain properties extended use. Overall, multifaceted functionalities versatility make promising material remediation, sensor technology, human–machine interfaces.

Язык: Английский

Процитировано

3
Life Cycle Assessment of Per- and Polyfluoroalkyl Substances (PFAS) Remediation Technologies: A Literature Review DOI Open Access
Xingqiang Song, Malin Montelius, Christel Carlsson

и другие.

Environments, Год журнала: 2024, Номер 11(9), С. 203 - 203

Опубликована: Сен. 17, 2024

The remediation of environments contaminated with per- and polyfluoroalkyl substances (PFAS) has become a growing priority due to the persistent, bioaccumulative, toxic characteristics these compounds. To promote green sustainable practices, it is crucial assess minimize environmental impacts PFAS projects through life cycle assessment (LCA) at early stages planning. So far, no systematic literature review been published current state art or identify challenges associated applying LCA remediation. This article provides recent on LCAs remediation, following ISO 14040 14044 standards. results indicate that application remains in its infancy highly fragmented. Significant methodological variations, including differences system boundaries data quality, hinder comparability benchmarking across studies. enhance use as decision support tool for assessment, there pressing need harmonization improved practices. Key areas improvement include enhancing reducing uncertainties, increasing robustness LCAs, thereby enabling more informed decision-making efforts.

Язык: Английский

Процитировано

3
Heavy-Metal Ions Control on PFAS Adsorption on Goethite in Aquatic Systems DOI

Aaifa Chaudhary,

Muhammad Usman, Wei Cheng

и другие.

Environmental Science & Technology, Год журнала: 2024, Номер 58(45), С. 20235 - 20244

Опубликована: Окт. 31, 2024

Per- and polyfluoroalkyl substances (PFAS) are ubiquitous environmental contaminants that often co-occur with heavy metals. Despite their prevalence, the mobility of PFAS in complex, multicomponent systems, particularly at molecular scale, remains poorly understood. The vast diversity low concentrations alongside anthropogenic natural underscore need for integrating mechanistic insights into sorption models. This study explores influence metal cations (Cu(II), Cd(II), Fe(II)) on adsorption four common (PFOA, PFOS, PFDA, GenX) onto goethite (α-FeOOH), a iron (oxyhydr)oxide both aquatic terrestrial environments. was highly dependent type, pH, ion concentration, surface complexation model effectively predicting these interactions. Cu(II) Cd(II) enhanced PFOS PFDA via ternary while slightly reducing PFOA GenX adsorption. Under anoxic conditions, Fe(II) significantly increased all PFAS, showing reactivity greater than those Cd(II). Additionally, organic matter mobility, although groundwater may counteract this by enhancing retention. These findings highlight key role transport offer critical behavior oxic-anoxic interfaces.

Язык: Английский

Процитировано

3