Current research primarily focuses on emerging organic pollutants,with limited attention to emerging inorganic pollutants (EIPs).However,due to advances in detection technology and the escalating environmental and hea...Current research primarily focuses on emerging organic pollutants,with limited attention to emerging inorganic pollutants (EIPs).However,due to advances in detection technology and the escalating environmental and health challenges posed by pollution,there is a growing interest in treating waters contaminated with EIPs.This paper explores biochar characteristics and modification methods,encompassing physical,chemical,and biological approaches for adsorbing EIPs.It offers a comprehensive review of research advancements in employing biochar for EIPs remediation in water,outlines the adsorption mechanisms of EIPs by biochar,and presents an environmental and economic analysis.It can be concluded that using biochar for the adsorption of EIPs in wastewater exhibits promising potential.Nonetheless,it is noteworthy that certain EIPs like Au(III),Rh(III),Ir(III),Ru(III),Os(III),Sc(III),and Y(III),have not been extensively investigated regarding their adsorption onto biochar.This comprehensive review will catalyze further inquiry into the biochar-based adsorption of EIPs,addressing current research deficiencies and advancing the practical implementation of biochar as a potent substrate for EIP removal from wastewater streams.展开更多
Per-and polyfluoroalkyl substances(PFASs)are highly persistent and widely distributed contaminants that pose a seri-ous threat to drinking water quality.However,few bibliometric studies have analyzed the research tren...Per-and polyfluoroalkyl substances(PFASs)are highly persistent and widely distributed contaminants that pose a seri-ous threat to drinking water quality.However,few bibliometric studies have analyzed the research trends and challenges of PFASs.Utilizing CiteSpace and VOSviewer,this study analyzed 1281 publications indexed in the Web of Science data-base spanning 2003 to 2023.The results revealed consistent growth in publication and citation counts,with major contri-butions from the United States,China,and Sweden.This study provides a comprehensive overview of the occurrence and behavior of PFASs in drinking water.Surface runoff,soil leaching,and atmospheric deposition jointly control PFASs delivery to water supplies,while legacy analytical protocols(liquid chromatography-tandem mass spectrometry)are gradually complemented by portable high-selectivity sensors.Current countermeasures,including activated carbon,ion-exchange resins,membrane separation,and emerging electro-/photochemical oxidation,display clear cost-performance tradeoffs.Persistent challenges remain in monitoring short-chain and novel ether PFASs,managing concentrated residu-als,and harmonizing regulatory thresholds.This bibliometric synthesis provides evidence for prioritizing research and policy actions that can accelerate the transition to PFASs-free drinking water.展开更多
基金support from the earmarked fund for XJARS(No.XJARS-06)the Bingtuan Science and Technology Program(Nos.2021DB019,2022CB001-01)+1 种基金the National Natural Science Foundation of China(No.42275014)the Guangdong Foundation for Program of Science and Technology Research,China(No.2023B1212060044)。
文摘Current research primarily focuses on emerging organic pollutants,with limited attention to emerging inorganic pollutants (EIPs).However,due to advances in detection technology and the escalating environmental and health challenges posed by pollution,there is a growing interest in treating waters contaminated with EIPs.This paper explores biochar characteristics and modification methods,encompassing physical,chemical,and biological approaches for adsorbing EIPs.It offers a comprehensive review of research advancements in employing biochar for EIPs remediation in water,outlines the adsorption mechanisms of EIPs by biochar,and presents an environmental and economic analysis.It can be concluded that using biochar for the adsorption of EIPs in wastewater exhibits promising potential.Nonetheless,it is noteworthy that certain EIPs like Au(III),Rh(III),Ir(III),Ru(III),Os(III),Sc(III),and Y(III),have not been extensively investigated regarding their adsorption onto biochar.This comprehensive review will catalyze further inquiry into the biochar-based adsorption of EIPs,addressing current research deficiencies and advancing the practical implementation of biochar as a potent substrate for EIP removal from wastewater streams.
基金supported by the Science and Technol-ogy of Alaer City Project(2025GX06)the President's Foun-dation of Tarim University(TDZKCX202404)the Bing-tuan Science and Technology Program(2021DB019,2022CB001-01).
文摘Per-and polyfluoroalkyl substances(PFASs)are highly persistent and widely distributed contaminants that pose a seri-ous threat to drinking water quality.However,few bibliometric studies have analyzed the research trends and challenges of PFASs.Utilizing CiteSpace and VOSviewer,this study analyzed 1281 publications indexed in the Web of Science data-base spanning 2003 to 2023.The results revealed consistent growth in publication and citation counts,with major contri-butions from the United States,China,and Sweden.This study provides a comprehensive overview of the occurrence and behavior of PFASs in drinking water.Surface runoff,soil leaching,and atmospheric deposition jointly control PFASs delivery to water supplies,while legacy analytical protocols(liquid chromatography-tandem mass spectrometry)are gradually complemented by portable high-selectivity sensors.Current countermeasures,including activated carbon,ion-exchange resins,membrane separation,and emerging electro-/photochemical oxidation,display clear cost-performance tradeoffs.Persistent challenges remain in monitoring short-chain and novel ether PFASs,managing concentrated residu-als,and harmonizing regulatory thresholds.This bibliometric synthesis provides evidence for prioritizing research and policy actions that can accelerate the transition to PFASs-free drinking water.
