Customer Needs Are Priority Number One
The founders and key personnel of C.E.R.E.S. are former consultants / contractors with experience designing and executing remediation for the remediating soil and groundwater at sites. We understand our customers (i.e. consultants and contractors) goals and concerns. We work hard to anticipate your needs so you can rest easier and have greater confidence in achieving highest performance

Field Experience Delivered.
Turn key services are available to support consultant customers needs to conduct bench scale treatability batch studies or column studies, pilot trial design guidance or subcontracting and full scale guidance or subcontracting. Let us know how we can add more value to our services and help you succeed.

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C.E.R.E.S. BioGeoChemical Reduction

BioGeoChemical Reduction (BGCR) BGCR combines physical, chemical, and microbiological (i.e. biogeochemical) processes to create strong reducing conditions that achieve rapid contaminant destruction by abiotic and biotic reduction.

BGCR contains Zero Valent Iron, the highest purity microcrystalline cellulose combined with oxygen scavenger, nutrients, and Vitamin B12 for biostimulation of anaerobes in groundwater for the bioremediation of chlorinated solvents, nitrate, some metals, nitrated explosives and hydrocarbons. The plant-based cellulose is nutrient rich, hydrophilic, and has high surface area; thus, it is ideal to support growth of bacteria in groundwater. Alternative carbon sources are also available if warranted by the site conditions, design, or remediation objectives.

Want flexibility or to design your own product? No problem!

BGCR is engineered to order. With CERES as your supplier and partner, you may decide if you want to include ferrous sulfate or other sulfate chemistries, buffering agents, or other chemistries to achieve optimal bio-geo-chemical reduction performance characteristics.

Up to 70% Zero Valent Iron (ZVI) can be included to engage chemical reduction and increase available hydrogen. ZVI options include Sponge Iron, Atomized iron or hydrometallurgical iron and range from as low as 1 μ and can be increased in size up to 2mm depending on your goals and site conditions.

You may consider site specific conditions (geology, hydrogeology, geochemistry and redox conditions, long term performance goals) and the injection or mixing methods of emplacement desired before finalizing your desired mixture of reagents and their physical properties. CERES provide technical support and guidance on optimization of the product performance by selecting the appropriate materials with the optimal physical and chemical properties to match the project requirements and site-specific conditions. This results in optimal performance and the most rapid reduction rates. Ask us about reducing time of remediation at low permeability sites!

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 – 

Or Call Us at

Spec Sheet

Spec Sheet

Spec Sheet

Spec Sheet

Benefits of BioGeoChemical Reduction (BGCR) Include

  • Highest quality micro scale
    crystalline cellulose.
  • Highest hydrogen producing ISCR product in the market!
  • Completely customizable to remediation objectives.
  • Comparably the most economical option in the market!
  • ​Applicable for in-situ chemical reduction applications for soil and groundwater remediation.
  • Excellent solution for chlorinated solvent and heavy metals including arsenic or hexavalent chromium.
  • ​Easily applied by soil mixing or injection.
  • Can be injected with low pressure.
  • Combine with iPAC for additional sorption capability or silica sand for permeability enhancement in fractured rock or clay rich soils.
  • Combine with MTS for mixed contaminant plumes of heavy metals and organics.

Proven Field Applications

  • Permeable reactive barriers (PRBs) or reactive zones (PRZ).
  • Trenching and aggregate size ZVI and carbon options for PRB design.
  • Deep Soil Mixing generally uses aggregate scale size.
  • Source area grid injection or soil mixing.
  • Direct push injection (generally <100 micron) or fracking (>44 micron).
  • Low pressure injection (15 micron or smaller ZVI).
  • Low to Moderate pressure injection (15-44 micron ZVI).
  • Higher pressure injection or fracking (greater than 44 micron ZVI).

BGCR Specifications

Physical Properties

Form: Fine Powder to Aggregate

Density: 1.5-2.4 g/cm3

Odor: Odorless

Solubility in Water: Insoluble

Color: white to Grey

Vapor Pressure: N/A

BGCR Particle Size and Compositional Options

BGCR Standard Composition
(70-210 micron)

MaterialsComposition %
Microcrystalline Celluloseup to 80%
other carbon sourcesup to 50%
Zero Valent Ironup to 70%
Sulfate (Fe, Mg or Ca)up to 50%
pH Buffering (carbonate, hydroxides, oxides)up to 20%
Sodium Ascorbateless than 1%
Vitamin B12, Nitrogen, and Phosphorusless than 1%
Guar GumLess than 2%


BGCR Particle Size and Compositional Options

BGCR Fine Composition (45-77 Micron)

MaterialsComposition %
Microcrystalline Cellulose45-55%
Legume derived Cellulose25-35%
Zero Valent Iron45%
Sulfate (Fe or Mg)up to 50%
Nutrients, ascorbate, guar gumless than 4%

BGCR Ultra Fine Composition (10-45 Micron)

MaterialsComposition %
Microcrystalline Cellulose45-55%
Legume derived Cellulose25-35%
Sulfate (Fe or Mg)up to 50%
UF ZVI 4 micronup to 10%
UF Sponge ZVI 15 micronup to 25%
Sponge Micro 325up to 50%
Nutrients, ascorbate, guar gumless than 3%

Would you like to create your own bio-geo-chemical reduction mix?

No problem! we can make whatever you like with the specifications of your choice so that you get the best possible distribution and performance to achieve your remediation objectives with the injection or mixing tools of your choice. We are ready to help you achieve your goals!

Ultra Fine ZVI Products to consider for BGCR

Colloidal and ultra-fine micron Zero Valent Iron (ZVI) is available in nitrogen sealed packaging in multiple size ranges and multiple grades including high surface area Sponge Iron, high reactivity atomized iron and high sphericity carbonyl iron.  The colloidal 4µm ZVI is commonly mixed with EVO and ready to inject at low pressure. C.E.R.E.S. offers small droplet EVO that is less than 1 micron in scale and readily mixes easily without the need of guar or complicated mixes. Just mix onsite and it’s ready to inject in target source areas or along permeable treatment zones for groundwater boundary control remediation designs. Or we can premix and ship ready to go!

Colloidal to Ultra Fine Size Options: <4 µm, 10 µm, 15 µm, and 35 µm.

BioGeoChemical Reduction (BGCR) is Applicable to Treatment of Many Contaminants Including:

Heavy Metals

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

Chlorinated Solvents and many other Contaminants of Concern (COCs)

Chlorinated Solvents
Energetics like TNT, DNT, RDS, HMX and Perchlorate
Nitrate and Sulfate
Polychlorinated biphenyls (PCBs)

Chemical Supplier for Remediation Projects

  • Ferrous Sulfate Mono and Hepta-hydrate
  • Magnesium Oxide
  • Magnesium Sulfate
  • Phosphate Chemistries
  • Carbon sources
  • Iron based chemistries
  • Chemical Buffer for pH Control

Just let us know what you need. Chances are we have it in inventory.


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