Advanced application of nano-technological and biological processes as well as mitigation options for arsenic removal

Maity, Jyoti Prakash and Chen, Chien-Yen and Bhattacharya, Prosun and Sharma, Raju Kumar and Ahmad, Arslan and Patnaik, Sneha and Bundschuh, Jochen (2021) Advanced application of nano-technological and biological processes as well as mitigation options for arsenic removal. Journal of Hazardous Materials, 405:123885. pp. 1-26. ISSN 0304-3894


Abstract

Arsenic (As) removal is a huge challenge, since several million people are potentially exposed (>10 μg/L World Health Organization guideline limit) through As contaminated drinking water worldwide. Review attempts to address the present situation of As removal, considering key topics on nano-technological and biological process and current progress and future perspectives of possible mitigation options have been evaluated. Different physical, chemical and biological methods are available to remove As from contaminated water/soil/wastes, where removal efficiency mainly depends on absorbent type, initial adsorbate concentration, speciation and interfering species. Oxidation is an important pretreatment step in As removal, which is generally achieved by several media such as O2/O3, HClO, KMnO4 and H2O2. The Fe-based-nanomaterials (α/β/γ-FeOOH, Fe2O3/Fe3O4–γ-Fe2O3), Fe-based-composite-compounds, activated-Al2O3, HFO, Fe-Al2O3, Fe2O3-impregnated-graphene-aerogel, iron-doped-TiO2, aerogel-based- CeTiO2, and iron-oxide-coated-manganese are effective to remove As from contaminated water. Biological processes (phytoremediation/microbiological) are effective and ecofriendly for As removal from water and/or soil environment. Microorganisms remove As from water, sediments and soil by metabolism, detoxification, oxidation-reduction, bio-adsorption, bio-precipitation, and volatilization processes. Ecofriendly As mitigation options can be achieved by utilizing an alternative As-safe-aquifer, surface-water or rainwater-harvesting. Application of hybrid (biological with chemical and physical process) and Best-Available-Technologies (BAT) can be the most effective As removal strategy to remediate As contaminated environments.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Date Deposited: 23 Jun 2022 22:50
Last Modified: 28 Jul 2022 22:57
Uncontrolled Keywords: Arsenic removal, Soil and water, Nanotechnology, Biological processes, Mitigation options
Fields of Research (2008): 09 Engineering > 0904 Chemical Engineering > 090410 Water Treatment Processes
09 Engineering > 0905 Civil Engineering > 090508 Water Quality Engineering
03 Chemical Sciences > 0305 Organic Chemistry > 030504 Organic Green Chemistry
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3405 Organic chemistry > 340504 Organic green chemistry
40 ENGINEERING > 4004 Chemical engineering > 400499 Chemical engineering not elsewhere classified
40 ENGINEERING > 4004 Chemical engineering > 400411 Water treatment processes
Identification Number or DOI: https://doi.org/10.1016/j.jhazmat.2020.123885
URI: http://eprints.usq.edu.au/id/eprint/49266

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