Zero Valent Iron
Custom grinding is available to meet specifications and needs.
Connelly-GPM
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About Connelly-GPM
Connelly-GPM manufactures iron-based products for industrial construction, gas treatment, chemical reduction, and groundwater remediation. Its products include Zero Valent Iron, Iron Sponge, Chemical Iron, and Iron Aggregate. Zero Valent Iron can be custom ground to meet specified requirements. Iron Sponge removes hydrogen sulfide from natural gas, sewer gas, landfill gas, methane produced by biogas digesters, and other air and gas sources. The company supplies metallic and non-metallic building products on a private-label basis only. Chemical Iron serves reduction applications in the chemical industry, while Iron Aggregate is used for groundwater remediation. Established in 1875, the business operates in Chicago.
Disclosure: Profile information has been compiled from publicly available sources and has not yet been verified by the business.
Representative photos. Illustrative images for this category, not photos of Connelly-GPM and not provided by the business.
At a glance
- Founded
- 1875
- World’s largest manufacturer of Iron Aggregate (ZVI).
- Iron Aggregate for groundwater remediation.
From connellygpm.com, checked 22 Oct 2026. Only what the business states on its own website.
Services
- Zero Valent Iron (Iron Aggregate) Custom grinding available to meet specifications and needs.
- Iron Sponge Removes sulfur from natural gas, sewer gas, landfill gas, biogas-derived methane, and other air and gas sources.
- Chemical Iron For reduction purposes for the chemical industry.
- Metallic and non-metallic building products For the industrial construction industry; private-label basis only.
As listed by Connelly-GPM. Prices as published by the business and may change.
Services & specialities
Highlights
Iron Sponge
Removes hydrogen sulfide from natural gas and other gas sources.
Industrial Products
Manufactures private-label building and chemical industry products.
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