Detection and removal of poly and perfluoroalkyl polluting substances for sustainable environment

Pilli, Sridhar; Pandey, Ashutosh Kumar; Pandey, Vivek; Pandey, Kritika; Muddam, Tulasiram; Thirunagari, Baby Keerthi; Thota, Sai Teja; Varjani, Sunita; Tyagi, Rajeshwar Dayal

doi:10.1016/j.jenvman.2021.113336

Cited by 29 publications

(17 citation statements)

References 204 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To date, as far as we know, few studies have reported PFAS in personal hygiene products, while the raw materials of these goods have been found to contain PFAS. 39,40 Zhu et al detected 17 PFAS (median concentration 3.62 ng/g) in baby clothing, 14 close to the values in paper diapers and sanitary pads considered in this study, but the detection rate and median concentration of PFOA (64% and 0.71 ng/g) in cotton baby cloth were much lower than those in the paper diapers. A possible reason may be that PFOA was added during the process to improve the hydrophobicity of the diapers and prevent urine leakage.…”

Section: Pfas Concentrations In Personal Hygienesupporting

confidence: 86%

Per- and Polyfluoroalkyl Substances in Personal Hygiene Products: The Implications for Human Exposure and Emission to the Environment

Zhou

Lin

Xing

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

Per-and polyfluoroalkyl substances (PFAS) have been related to reproductive toxicity in humans, but their occurrence in some specific personal hygiene products, i.e., sanitary pads, panty liners, tampons, paper diapers, menstrual cups, and bactericidal liquids, has not been extensively studied. This work investigated 31 representative PFAS in six categories of such personal hygiene products (n = 91). Perfluorinated carboxylic acids were the primary PFAS found in the samples, accounting for over 85% of the total concentrations of PFAS. Paper diapers contained the highest sum of PFAS concentrations (64.6 ng/g) followed by sanitary pads (52.3 ng/g) and menstrual cups (21.1 ng/g). The estimated exposure doses of perfluorooctanoic acid through dermal absorption from the use of menstrual cups and paper diapers for infants (adults) were 0.77 and 2.1 (1.2) ng/kg-bw/ day, which contributed more than normal dust ingestion. The estimated emission of paper diapers and sanitary pads into the environment was 2.58 and 322 kg/year with an assumed leaching rate of 100%. The potential exposure of PFAS through the use of personal hygiene products observed in this work suggests a previously unreported exposure pathway of these chemicals to humans.

show abstract

Section: Pfas Concentrations In Personal Hygienesupporting

confidence: 86%

Per- and Polyfluoroalkyl Substances in Personal Hygiene Products: The Implications for Human Exposure and Emission to the Environment

Zhou

Lin

Xing

et al. 2023

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The performance of processes involving US was found to be highly dependent on the operating parameters, including the power density, frequency, temperature, room conditions, additives, inorganic compounds presence (e.g., bicarbonate and sulfate), pollutant concentration and the US reactor design [11], [15], [16], [19], [34], [38], [39]. Additionally, Yadav and coworkers [19] suggested that the presence of volatile organic compounds decreased the degradation efficiency of PFOS and PFOA due the temperature reduction.…”

Section: Sonochemical Oxidationmentioning

confidence: 99%

Advanced Oxidation Processes Used in The Treatment of Perfluoroalkylated Substances in Water

Marín-Marín,

Rubio-Clemente,

Peñuela

2023

Rev. UIS ing.

View full text Add to dashboard Cite

Perfluoroalkylated and polyfluoroalkylated substances (PFAS) are a large family of synthetic chemicals widely used to manufacture various commercial products. However, they are hazardous to health and the environment. These substances are very persistent and their degradation requires advanced degradation techniques. One of the most widely used technologies for this purpose is advanced oxidation processes (AOP). This study aims to evaluate the use of AOP in PFAS degradation based on their efficiency, parameters influencing each process, advantages, disadvantages, and associated research challenges. According to the results, plasma, electrochemical oxidation, sonochemical oxidation, and heterogeneous photocatalysis stand out among the AOP applied for PFAS degradation. In addition, perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) were found to be the main toxic compounds studied. In this regard, future research should focus on a wider variety of PFAS. Finally, the drawbacks associated with the application of these processes to eliminate the substances of interest were found to be an urgent need to be overcome.

show abstract

“…A recent article on reviewing the light-induced advanced oxidation processes (AOPs) as PFAS remediation methods are detailed elsewhere [32], whereas the present work focuses on light-induced, electrochemical supported [electro-oxidation] AOPs in addition to the electro-kinetic/coagulation-sorption. The analysis and the sensing part, in addition to the modeling aspects of these emerging contaminants, are also receiving more extensive attention from the peers considering the global concern [55][56][57][58][59].…”

Section: Figure 1 Pfas Cycle Illustrating Their Ubiquitous Presencementioning

confidence: 99%

Per-/Poly-fluoroalkyl Substances (PFASs) Treatment and Mechanistic Insights: Photo-catalyst and Photo-Electro-catalyst Materials Application

Penke

Kar

2022

Preprint

View full text Add to dashboard Cite

The PFASs contamination (Per-/Poly-fluoroalkyl Substances ~ 4000 compounds) is influencing the humane through soil and aquifers contamination, resulting in the endocrine-disrupting symptoms (EDS). PFASs decontamination involves both (i) Capture/non-degradation techniques and (ii) Degradation techniques. In the present work, a detailed discussion on various photo-catalytic/electrocatalytic electrode materials (Fe/Ti/Zn/Bi/C etc.) over PFASs degradation is provided. The authors have focused onto the recent literature published in the last couple of years for citing research outputs and schematic figures. The analysis of both radical species (e.g., hydroxyl/sulphate species) and direct electron transfer (DET) mechanisms are given. An insightful discussion of the impact on various degradation mechanisms (decarboxylation, and hydrodefluorination) onto various PFASs has been provided. A different set of examples are provided in describing both electron (e-) based oxidation and hole (h+) based oxidation phenomenon. The state-of-the-art novel inventions towards pilot-scale studies and field-level applications are discussed with explaining the possible limitations (e.g., light source etc.). The factors influencing the degradation process (i.e., Electrode potential, Current density, Impact of dosage, pH, Radical species, Competing ions, Temperature and light source) are also detailed prior to the future perspective and conclusions.

show abstract

Detection and removal of poly and perfluoroalkyl polluting substances for sustainable environment

Cited by 29 publications

References 204 publications

Per- and Polyfluoroalkyl Substances in Personal Hygiene Products: The Implications for Human Exposure and Emission to the Environment

Per- and Polyfluoroalkyl Substances in Personal Hygiene Products: The Implications for Human Exposure and Emission to the Environment

Advanced Oxidation Processes Used in The Treatment of Perfluoroalkylated Substances in Water

Per-/Poly-fluoroalkyl Substances (PFASs) Treatment and Mechanistic Insights: Photo-catalyst and Photo-Electro-catalyst Materials Application

Contact Info

Product

Resources

About