ArticleJournal of environmental quality
Designing biochars for improved sorptive removal of per- and polyfluoroalkyl substances.
Article in Journal of environmental quality. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Designing biochars for improved sorptive removal of per- and polyfluoroalkyl substances.Journal of environmental qualityArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
The widespread occurrence of per- and polyfluoroalkyl substances (PFAS) in aquatic environments, along with their adverse impacts on human health, has been recognized as an emerging issue. Sorption using carbon-based sorbents is the most common approach for PFAS removal. However, conventional biochars typically underperform compared to activated carbon, which is effective but relatively costly. In this study, a designer biochar was developed by using lime sludge, a no-cost byproduct from drinking water treatment plants, as a pretreatment for woody biomass followed by systematic optimization of lime-sludge loading, pyrolysis temperature, and residence time. The results showed that the pretreatment process enhanced pore development and modified the surface chemistry of the designer biochar. Under optimal conditions (1:4 lime sludge-to-biomass, 850°C, 5 h), the designer biochar achieved near-quantitative removal (>99%) of perfluorooctanoic acid and both linear and branched perfluorooctane sulfonate, outperforming unmodified biochar and comparable to a commercial activated carbon. Sorption kinetics and isothermal studies confirmed the superior performance of the designer biochar, exhibiting rapid equilibration (<1 h) and increased sorption capacity. Mechanistic analysis revealed that improved PFAS removal by the designer biochar was driven by multiple adsorption mechanisms, including hydrophobic interactions, electrostatic attraction, and cation bridging facilitated by Ca
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.