CONNELLY - GPM, INC.
ESTABLISHED 1875
3154 SOUTH CALIFORNIA AVENUE . CHICAGO, ILLINOIS 60608-5176
PHONE: (773) 247-7231  FAX: (773) 247-7239


CONNELLY-GPM INC.:

THE IRON AGGREGATE PEOPLE

THE SOURCE TO HELP YOU IRON THINGS OUT

Since 1875 Connelly-GPM, Inc. has been creating quality products used to protect the environment and serve the energy and construction industries

CUSTOM GROUND IRON AGGREGATE

ZERO-VALENT-IRON

Connelly-GPM, Inc. takes pride in being the world's largest manufacturer of Iron Aggregate (ZVI). We will custom grind to meet your specifications and needs. Our oil-free, size-specific Iron Aggregate is used for a variety of applications: Customers are using our Iron Aggregate for in-situ treatment of environmental sites with groundwater containing chlorinated organic compounds, removal of inorganic contaminants such as chromium, arsenic and selenium from drinking water, and various industrial and chemical applications.

GROUNDWATER PURIFICATION (ORGANIC):

Connelly-GPM, Inc. has been in business since 1875, and we take pride in being the world’s largest manufacturer of Iron Aggregate.  We can custom grind to meet your specifications and needs.  We have provided the majority of Iron Aggregate to sites around the world; many over 2,000 Net Tons, a few over 3,500 Net Tons, and we have recently completed the largest site to date of over 10,000 Net Tons.  Our record of delivering orders on time and within specifications has made us the supplier of choice for this rapidly growing technology.  While, as Iron grinders, we make no claim as to its reactivity, our customers report it to have superior effectiveness at breaking down trichloroethylene (TCE), tetrachloroethylene (PCE), trichloroethane (TCA), and vinyl chloride (VC), which represent some of the most toxic volatile organic compounds (VOC's) contaminating groundwater.

In the past, cleanup often consisted of pumping the groundwater and treating it above ground then returning it to the environment. This pump-and-treat method is expensive, slow, and high-maintenance. There are also many convoluted high-tech approaches using forced air or steam to flush the pollutants out where they can be brought up and treated at the surface.

In contrast, a process, using our Iron Aggregate, as a passive remediation technique utilizes in-situ permeable reactive barriers ( PRBs ).  After installation they require little maintenance. The natural flow of groundwater does all the work. After the groundwater flow of a contaminated site is determined, a trench is dug across the contaminant plume width and filled with either Iron Aggregate alone or a mix of Iron Aggregate and coarse sand. By designing the wall to allow sufficient contact time with the Iron Aggregate, the contaminants are eliminated as the water passes through the treatment material.  Results indicate this process produces non-toxic end-products; it chemically destroys the contaminants.

This product, designed to meet standards developed using this technology, has demonstrated its effectiveness in laboratory testing and in hundreds of full-scale treatment systems. Connelly-GPM, Inc. produces the Iron Aggregate used in this, the most promising remediation system available for such contaminated sites.

ADVANTAGES

·        Cost effective compared to traditional pump and treat technology

·        Mechanically simple, long-term solution

·        Treatment destroys contaminants

·        Does not transfer chemicals from one medium to another

·        In-situ application eliminates energy consumption, groundwater extraction and disposal cost and operating costs.

·        Non-toxic end products

·        Combines well with other remediation technologies that address other contaminants

 

GROUNDWATER PURIFICATION (INORGANIC):

In light of the new regulations reducing the allowable chromium and arsenic levels in drinking water, interest in the application of Connelly-GPM, Inc.’s Iron Aggregate for removal of arsenic, selenium, chromium, and other inorganic contaminants is growing faster than ever. As with organic treatment, it is a passive process requiring no pumping or outside energy.

For More Information Contact

UNIVERSITY OF WATERLOO
DEPARTMENT OF EARTH SCIENCES
200 UNIVERSITY AVENUE WEST
WATERLOO, ONTARIO, CANADA N2L 3G1

 

https://uwaterloo.ca/earth-environmental-sciences/research/waterloo-institute-groundwater-research

 

INDUSTRIAL APPLICATIONS OF IRON AGGREGATE:

From mundane (as ballast material) to high tech (the production of phosphoric acid and magnetic tape) and countless applications in between, Connelly-GPM, Inc. has been earning and upholding a reputation for producing a high-quality, consistent, ground iron product (Iron Aggregate) that has been relied upon for generations by industries in virtually every sector of the economy. Whether you require fine powder, granular, or coarse ground iron, we have the experience and expertise to work with you to provide the quality product best suited to your needs.

 

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