Abstract：
:Zero-valent metals (ZVM) are widely used to remove heavy metals, contaminants, toxicity, etc. from water and wastewater. Zero-valent aluminium (ZVAl) has large surface area and high surface reactivity. It has enormous flexibility for the in-situ application. ZVAl can be applied as either a single or a bimetallic system as well as advanced oxidation processes (AOPs). It is observed that ZVAl is capable of generating hydroxyl and sulfate radicals in water medium, which remove non-biodegradable pollutants from aqueous solution. ZVAl-based processes can remove non-biodegradable organic contaminants from water medium within a short duration. ZVAl is also used as a reducing agent. It is efficient to reduce toxic hexavalent chromium to less toxic trivalent chromium. ZVAl, in various combinations in bimetallic system (Fe/Al, Pd/Al, Cu/Al), is able to remove various contaminants from aqueous medium. Overall, it can be concluded that ZVAl-based methods for water and wastewater treatment are promising environmental technologies.
journal_name
Chemospherejournal_title
Chemosphereauthors
Nidheesh PV,Khatri J,Anantha Singh TS,Gandhimathi R,Ramesh STdoi
10.1016/j.chemosphere.2018.02.155subject
Has Abstractpub_date
2018-06-01 00:00:00pages
621-631eissn
0045-6535issn
1879-1298pii
S0045-6535(18)30367-9journal_volume
200pub_type
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