Application of Zero-valent Iron Nanoparticles for Environmental Clean Up - Advanced Materials for Agriculture, Food and Environmental Safety - page 393

Contaminant
category

Contaminant removed Reaction mechanism Remarks References

Inorganic
contaminants

NO 3 - Removal by reduction Integrated nFe 0 -cell system in removes

nitrate more ef ectively than nFe 0 or cell
alone

[141]

Cr(VI) Reduction followed by

precipitation

Cr-Fe hydroxide shell: stable and sink for
Cr(VI)

[142]

NO 2 - , NO 3 - Reduction to N 2 Removal ei ciency: 65-83% for NO 2 - and

51-68% for NO 3 -

[143]

As(V) Removal by adsorption and

coprecipitation

Humic acid decreased As(V) removal rate,
UV light promotes removal ei ciency

[53]

As(III) Adsorption Anions (chloride, carbonate, nitrate,

phosphate, sulfate and borate),
manganese, and organic matter inhibit
As(III) removal.

[144]

Cd(II) Chemisorption Sorption- endothermic & spontaneous;

follows pseudo second-order kinetic
model

[145]

U(VI), Cu(II), Cr(VI), Mo(VI) Adsorption followed by

reduction

U(VI) removal rate comparatively less in
multielement system.

[146]

PO 4 3- Adsorption Removal and recovery rate increases with

increasing pH.

[147]