Spherical Porous Iron Powder ZVI Zero Valent Iron Powder used For Environment Remediation Process
Zero Valent Iron (ZVI) is a green & eco-friendly material, which can be used as a reducing agent in the environment remediation process. ZVI can remove various contaminants by chemical reduction, adsorption and co-precipitation. Furthermore, ZVI could also be combined with bioremediation to significantly improve the remediation efficiency.

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Product introduction :

Zero Valent Iron (ZVI) is a green & eco-friendly material, which can be used as a reducing agent in the environment remediation process. ZVI can remove various contaminants by chemical reduction, adsorption and co-precipitation. Furthermore, ZVI could also be combined with bioremediation to significantly improve the remediation efficiency.


Our ZVI are made by a unique chemical method, with particle size range of 2 um - 250 um.

Compared with conventional ZVI powder,our ZVI powders have the characteristics of
• large specific surface area
• high reaction activity (>50 times higher than conventional ZVI)
• good adsorption capacity
• high purity (no harmful heavy metals)
• strong reduction property (ORP can reach-400mV)
• good longevity
which could significantly improve the removal efficiency of contaminants such as chlorinated solvent,hexavalent chromium in soil and groundwater,and shorten the environmental remediation time.




Spherical Porous Iron Powder

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Characteristic:
*High reactivity & large specific surface area (550 times 1 |the conventional ZVI) *(High porosity & good permeability and adsorption Iperformance & wide range of application *Low activity loss & good longevity for increased reliability and shorten the environmental remediation time *Customized particle size range for different applications/sites

Grade
Geometry
Mesh
Bulk Density 
(g/cm³)
Tap Density 
(g/cm³)
Chemical analysis
Application
EG-40
Spherical & Porous
40~100
0.44
0.67
Fe≥99.08
O≤0.22
PRB 
Soil Mixing
EG-100
Spherical & Porous
100~200
0.61
0.97
Fe≥99.08
O≤0.57
Water Treatment! Soil Mixing
EG-200
Spherical & Porous
－200
0.65
0.98
Fe≥99.08
O≤0.38
Injection 
Soil Mixing



Table 1 ZVI Reactivity as Change/Decrease in PCE Removal (μg/L per g ZVI/hr)



UIF ZVI-AZVI-BZVI-CZVI-D
Ave. Size (um)
3
45
297
125
297
Ave. Size (mesh)>5000 - <2500>1200 - <170>170 - <35>1200 - <35>50 - <8
ApplicationEZVIInjectionPRBs

SSA (m³/g)>0.900.360.320.970.70
Fe % >98>98>98>95>95

Reaction Time		72h10.587.002.879.688.27
168h8.216.532.906.735.26
Active Loss (%)22.46.7030.536.4

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