Photocatalysis for arsenic removal from water: considerations for solar photocatalytic reactors
Article
Article Title | Photocatalysis for arsenic removal from water: considerations for solar photocatalytic reactors |
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ERA Journal ID | 5827 |
Article Category | Article |
Authors | Silerio-Vazquez, Felipe (Author), Proal Najera, Jose B. (Author), Bundschuh, Jochen (Author) and Alarcon-Herrera, Maria T. (Author) |
Journal Title | Environmental Science and Pollution Research |
Journal Citation | 29 (41), pp. 61594-61607 |
Number of Pages | 14 |
Year | 2022 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 0944-1344 |
1614-7499 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11356-021-16507-5 |
Web Address (URL) | https://link.springer.com/article/10.1007/s11356-021-16507-5 |
Abstract | The following work provides a perspective on the potential application of solar heterogeneous photocatalysis, which is a nonselective advanced oxidation process considered as a sustainable technology, to assist in arsenic removal from water, which is a global threat to human health. Heterogeneous photocatalysis can oxidize trivalent arsenic to pentavalent arsenic, decreasing its toxicity and easing its removal with other technologies, such as chemical precipitation and adsorption. Several lab-scale arsenic photocatalytic oxidation and diverse solar heterogeneous photocatalytic operations carried out in different reactor designs are analyzed. It was found out that this technology has not been translated to operational pilot plant scale prototypes. General research on reactors is scarce, comprising a small percentage of the photocatalysis related scientific literature. It was possible to elucidate some operational parameters that a reactor must comply to operate efficiently. Reports on small-scale application shed light that in areas where other water purification technologies are economically and/or technically not suitable, and the solar energy is available, shed light on the fact that solar heterogeneous photocatalysis is highly promissory within a water purification process for removal of arsenic from water. |
Keywords | Advanced oxidation process, Dissolved oxygen, Drinking water, Solar energy, Titanium dioxide |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340504. Organic green chemistry |
400499. Chemical engineering not elsewhere classified | |
400411. Water treatment processes | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Research in Advanced Materials, Mexico |
National Polytechnic Institute, Mexico | |
UNESCO Chair on Groundwater Arsenic | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7723/photocatalysis-for-arsenic-removal-from-water-considerations-for-solar-photocatalytic-reactors
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