Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

Firouzjaei, Mostafa Dadashi; Zolghadr, Ehsan; Ahmadalipour, Shahin; Taghvaei, Nastaran; Afkhami, Farhad Akbari; Nejati, Siamak; Elliott, Mark

doi:10.1007/s10311-021-01340-6

Cited by 28 publications

(3 citation statements)

References 137 publications

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“…However, the main challenges are the fact that they are found in so many household items and drinking water. There are different types of PFAS on the global market [ 28 , 36 , 37 , 38 , 39 , 40 ], while only ~28 PFAS are quantitatively analyzed and identified [ 22 ]. Controlling exposure to PFAS can quickly be completed when the unknown PFAS are identified, and exposure assessment can limit or prevent future routes of administration.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

Ayodele,

Obeng-Gyasi

2024

Cancers

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This exploratory narrative review paper delves into the intricate interplay between per- and polyfluoroalkyl substances (PFAS) exposure, sociodemographic factors, and the influence of stressors in the context of endometrial cancer. PFAS, ubiquitous environmental contaminants notorious for their persistence in the ecosystem, have garnered attention for their potential to disrupt endocrine systems and provoke immune responses. We comprehensively examine the various sources of PFAS exposure, encompassing household items, water, air, and soil, thus shedding light on the multifaceted routes through which individuals encounter these compounds. Furthermore, we explore the influence of sociodemographic factors, such as income, education, occupation, ethnicity/race, and geographical location and their relationship to endometrial cancer risk. We also investigated the role of stress on PFAS exposure and endometrial cancer risk. The results revealed a significant impact of sociodemographic factors on both PFAS levels and endometrial cancer risk. Stress emerged as a notable contributing factor influencing PFAS exposure and the development of endometrial cancer, further emphasizing the importance of stress management practices for overall well-being. By synthesizing evidence from diverse fields, this review underscores the need for interdisciplinary research and targeted interventions to comprehensively address the complex relationship between PFAS, sociodemographic factors, stressors, and endometrial cancer.

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Section: Introductionmentioning

confidence: 99%

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

Ayodele,

Obeng-Gyasi

2024

Cancers

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“…The US Environmental Protection Agency (EPA) issued a health advisory level of 70 ng/L for PFOA and PFOS combined in drinking water in 2016 (EPA 2016), but some states require a maximum PFOA level in drinking water at 14 ng L −1 (Dadashi Firouzjaei et al 2022). PFOA was found in Australian drinking water at a concentration of 9.7 ng L −1 in 44% of all samples tested in South East Queensland (Thompson et al 2011), but concentration in groundwater Responsible Editor: Guilherme Luiz Dotto around army bases have been reported at µg L −1 levels.…”

Section: Introductionmentioning

confidence: 99%

Combined adsorption and electrochemical oxidation of perfluorooctanoic acid (PFOA) using graphite intercalated compound

Trzcinski,

Harada

2024

Environ Sci Pollut Res

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Perfluorooctanoic acid (PFOA) is a bioaccumulative synthetic chemical containing strong C–F bonds and is one of the most common per- and polyfluoroalkyl substances (PFAS) detected in the environment. Graphite intercalated compound (GIC) flakes were used to adsorb and degrade PFOA through electrochemical oxidation. The adsorption followed the Langmuir model with a loading capacity of 2.6 µg PFOA g−1 GIC and a second-order kinetics (3.354 g µg−1 min−1). 99.4% of PFOA was removed by the process with a half-life of 15 min. When PFOA molecules broke down, they released various by-products, such as short-chain perfluoro carboxylic acids like PFHpA, PFHxA, and PFBA. This breakdown indicates the cleavage of the perfluorocarbon chain and the release of CF2 units, suggesting a transformation or degradation of the original compound into these smaller acids. Shorter-chain perfluorinated compounds had slower degradation rates compared to longer-chain ones. Combining these two methods (adsorption and in situ electrochemical oxidation) was found to be advantageous because adsorption can initially concentrate the PFOA molecules, making it easier for the electrochemical process to target and degrade them. The electrochemical process can potentially break down or transform the PFAS compounds into less harmful substances through oxidation or other reactions.

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“…[24][25][26] Moreover, the 3D printing of some widely utilized materials in conventional membranes like polyvinylidene fluoride (PVDF) and polyethersulfone (PES) is not yet feasible. [3,27,28] Figure 1 shows the schematic timeline of the evolution of 3D printing, the application of 3D printing in membrane technology, and the number of publications by searching for keywords '3D printing', 'water', and 'membrane' in the last decade. The data shows more than 160 publications in the field of 3D-printed membranes for water treatment applications in the last 10 years.…”

Section: Introductionmentioning

confidence: 99%

The implications of 3D‐printed membranes for water and wastewater treatment and resource recovery

et al. 2022

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It is widely acknowledged that three-dimensional (3D) printing or additive manufacturing will revolutionize many industries. However, the broad implications of 3D printing on water treatment membranes are not appreciated. 3D printing will transform the traditional membrane fabrication methods, reducing costs and industrial waste from manufacturing processes, with substantial benefits to treatment performance. In particular, 3D printing provides a high potential for radical decentralization. Remote communities, hospitality resorts, military bases, and oil and gas extraction operations could significantly benefit from the on-site fabrication of membrane units tunable to their specific wastewater challenges. Acute drinking water contamination events, like those associated with toxic by-products from algal blooms, chemical spills, forest fires, and extreme weather, cause adverse health effects on humans and shutdowns of piped water supply. 3D printing of customized membranes provides an opportunity for a fast response to such disastrous events. These membranes could be ready for installation within hours, with the vendor's role more akin to a software company installing a patch than the traditional approach, with major considerations for hardware availability, timeline, and supply chain. Despite these clear and potentially transformative advantages, 3D printing of membranes is not a panacea; countless aspects need to be taken into consideration for the successful implementation of this emerging technology. The full deployment of 3D-printed membranes in water and wastewater treatment can be achieved by extending the variety of printable materials, improving the speed and resolution of printing, creating nanoscale pores, reducing the fabrication costs, and improving the mechanical properties of the resulting membranes.

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Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

Cited by 28 publications

References 137 publications

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

Exploring the Potential Link between PFAS Exposure and Endometrial Cancer: A Review of Environmental and Sociodemographic Factors

Combined adsorption and electrochemical oxidation of perfluorooctanoic acid (PFOA) using graphite intercalated compound

The implications of 3D‐printed membranes for water and wastewater treatment and resource recovery

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