Advanced granular iron for soil and groundwater remediation

Winoa offers high-purity granular Zero Valent Iron (ZVI) engineered for environmental remediation. Designed for in-situ and ex-situ applications, our ZVI reduces chlorinated solvents, nitrates, and heavy metals directly in contaminated soils and aquifers. With controlled particle size distribution and optimized surface reactivity, it ensures reliable, long-term performance in permeable reactive barriers (PRBs), injection treatments, and soil mixing.

Key Benefits of our ZVI products

Advantages

Durable & Recyclable

Long operational life in PRBs and mixed soils.

Proven chemistry

Reduces chlorinated solvents (TCE, PCE), nitrates, and Cr⁶⁺ into stable, non-toxic forms.

High efficiency

Optimized surface area for strong reactivity.

MARKETS AND APPLICATIONS

Groundwater treatment

Permeable reactive barriers and direct-push injection.

Soil remediation

Blending for source zones with solvents or heavy metals.

Industrial effluents

Treatment of nitrate and arsenic in wastewater.

Specialized uses

Acid mine drainage mitigation, advanced research on PFAS.

Grade, Size & Hardness Options

Technical Specifications

Form: Granular Zero Valent Iron (GZVI)
Particle size: Controlled distribution for consistent permeability and reactivity
Purity: High iron content for predictable performance
Reactivity: Strong electron-donor capacity for redox-driven remediation
Packaging: Available in bulk bags for large remediation projects
Technical data sheet (TDS) and safety data sheet (SDS) available on request

14D

Screen Size	Opening	% Passing	Micron Range
8	2.36 mm	100	2360
16	1.18 mm	95-100	1180
30	0.60 mm	55-95	600
50	0.30 mm	15-80	300
120	0.125 mm	0-20	125
200	0.075 mm	0-6	75

8/50D

Screen Size	Opening	% Passing	Micron Range
4	4.75 mm	100	4750
8	2.36 mm	95-100	2360
16	1.18 mm	75-98	1180
30	0.60 mm	30-58	600
50	0.30 mm	2-19	300
100	0.150 mm	0-7	150

50D

Screen Size	Opening	% Passing	Micron Range
40	0.425 mm	100	425
50	0.30 mm	75-95	300
80	0.18 mm	55-85	180
100	0.150 mm	40-75	150
200	0.075 mm	30-60	75
325	0.045 mm	0-30	45

For informational purposes only. Not contractual. Contact your local representative for latest version of the technical data sheets

Why choose Winoa ?

Formerly made under Peerless

Winoa combines decades of metallurgical expertise with environmental innovation. Our ZVI is manufactured to meet strict quality standards, ensuring reliable performance across diverse remediation projects. Beyond product supply, we provide technical guidance to help consultants and contractors design efficient, cost-effective remediation strategies.

Contact us or Download our brochure

Call to Action

Contact Winoa today to request your free ZVI sample or download the full technical datasheet and elevate your surface preparation process.

Contact us Now ! Download our Zero Valent Iron (ZVI) brochure

Discover How ZVI Breaks Down Soil & Groundwater Contaminants

Article

Across industrial and legacy waste sites, contaminants like chlorinated solvents, nitrates, and heavy metals often persist despite costly pump-and-treat systems. Learn how Zero Valent Iron (ZVI) serves as a sustainable, in-situ solution—transforming pollutants directly where they’re found through powerful redox reactions.

Explore the full article to uncover:

Why ZVI is a proven, long-term remediation method
How granular ZVI intercepts and degrades contaminants within permeable reactive barriers
The impact of particle size on reactivity and application methods—granular, nano, and modified ZVI
Real-world design insights and best practices for PRBs, injection, and soil mixing

Read the full ZVI remediation article