C.E.R.E.S. Zero Valent Iron

Zero Valent Iron (ZVI)

Zero Valent Iron (ZVI) – is a reductant used in the treatment of organic and inorganic contaminants found in soil and groundwater. Highly reactive micro-scale iron powder and granules for in situ chemical reduction of chlorinated solvents, metals, nitrates, nitroaromatic compounds, and certain dyes, among other contaminants of concern. ZVI is applied to soils and groundwater within source areas, permeable reactive zones/barriers, and other soil and groundwater remediation applications. CERES offers the best selection of highly reactive ZVI products to match up with the soil and hydrogeologic conditions as well as preferred injection approach. ZVI is a common component of BioGeoChemical Reduction approaches and is included in CERES BioGeochemical Reduction (BGCR).

CERES Zero Valent Iron (ZVI) powder is produced by different manufacturing processes including reduced iron (i.e. Sponge Iron), hydrometallurgy, water atomization or carbonyl production methods (NOTE: CERES DOES NOT use scrap iron for our ZVI!).  CERES ZVI is available at up to 99.5% Fe content and thousands of tons are produced annually with just-in-time manufacturing to ensure no appreciable surface oxides are present. Each manufacturing method produces ZVI of different iron content, reactivity and hydrogen production to meet our clients project specific requirements. Yes, we are engineering to order your ZVI. Who else does that?!

ZVI is one of the most effective and reliable remediation technologies, proven over decades to achieve successful in situ chemical reduction (ISCR) of many target contaminants. CERES has supported many clients with ZVI for ISCR projects around the world for many years with great success and proud to say that customer goals are being achieved one project after the other!

Would you like a quote for your project or a sample of one of our zero valent iron products? We can help – Please complete the contact form or Call us at +1 (714) 709-3683

Sponge Iron ZVI

Benefits Include

  • Proven remediation technology since the 1970’s.
  • ​Applicable in soil piles and in-situ chemical reduction applications for groundwater treatment.
  • Economical solution for chlorinated solvent and hexavalent chromium remediation applications.
  • ​Easily applied by soil mixing or injection.
  • Can be injected with low pressure.
  • Combine with EVO for combined biotic and abiotic reduction.
  • Combine with MTS for mixed contaminant plumes of heavy metals and organics.

Proven Field Applications

  • Permeable reactive barriers (PRBs) and Funnel & Gate Design.
  • Trenching and aggregate size ZVI particles for PRB design.
  • Deep Soil Mixing generally uses aggregate scale size.
  • Source area grid injection or soil mixing.
  • Direct push injection (generally <200 micron) or permanent injection wells (<10micron only).
  • Low pressure injection (15 micron or smaller ZVI).
  • Moderate pressure injection (15-44 micron ZVI).
  • Higher pressure injection or fracking (greater than 44 micron ZVI).


Physical Properties

Form: Fine Powder to Aggregate

Density: 1.7-3.6 g/cm3

Molar Mass: 55.85

Odor: Odorless

Solubility in Water: Insoluble

Color: Grey

Vapor Pressure: N/A

Material Composition

Material % Composition
Iron up to 99.5%
Carbon less than 3.0%
Silicon less than 2.5%
Manganese less than 0.8%
Nickel less than 0.20%
Sulphur less than 0.15%
Phosphorous less than 0.15%
Most Common Injection Options

Standard Micro 100 (70-325 Mesh)

125-210 micron 30-45%
88-125 micron 40-55%
44-88 micron 15-20%

Injection and Fracking Grades

4 micron (D50=4µm, 2-7µm) UF4- Ultra Fine 4 micron
15 micron (D50=15µm; 5-30µm) UF15- Ultra Fine 15 micron
<45 micron micro 325
20-88 micron micro 200
74-210 micron standard micro 100
74-425 micron F 1
125-425 micron F 2
100-2,000 micron Sponge PRB
100-2,000 micron PRB Blend

New Permeable Reactive Barrier ZVI Products

ZVI specifically designed for open trench permeable reactive barriers (PRBs). C.E.R.E.S. offers a standard Sponge Iron ZVI PRB mix with a range from 100-2,000 microns with iron content up to 99%, very high reactivity, no appreciable surface oxides. However that can be modified to increase or decrease fines or coarse range. We can discuss and provide you technical support in the design of your PRB.

C.E.R.E.S. also offers a more customizable PRB Blend ZVI produced by combining sponge iron with atomized iron with iron content up to 99%, very high reactivity, no appreciable surface oxides. This blend can be modified to satisfy site specific size distributions for your design objectives.

Remember, no rusted scrap iron here! Don’t accept that level of quality. You have one chance to install the most reactive and longest performing PRB to achieve your goals and get the best results. Let C.E.R.E.S. support your ZVI needs.

Applicable to Treatment of Many Contaminants Including:

Heavy Metals

Arsenic (As)
Hexavalent Chromium (CrVl)​
Cadmium (Cd)
Nickel (Ni)
Selenium (Se)

Chlorinated Solvents and many other Contaminants of Concern (COCs)

Chlorinated Solvents ​Carbon-Tetrachloride Energetics like TNT, DNT, RDS, HMX and Perchlorate ​Technetium Pesticides Nitrate and Sulfate Polychlorinated biphenyls (PCBs)

Chemical Supplier for Remediation Projects

  • Magnesium Oxide
  • Magnesium Sulfate
  • Phosphate Chemistries
  • Ferrous Sulfate Heptahydrate
  • Iron based chemistries
  • Chemical Buffer for pH Control
Just let us know what you need. Chances are we have it in inventory.
Thank you for your interest in C.E.R.E.S. remediation products!