| #1: How is EnvironOxide™ produced? |
EnvironOxide™ production systems remove iron from polluted mine water through its precipitation as iron oxide. The patented passive technology consists of interconnected ponds that are designed to promote the formation of iron oxide solids and facilitate their efficient recovery. The discharge from the production ponds is directed into constructed wetlands, where residual iron is removed and a final discharge is produced that does not pollute the receiving stream. Over time, the iron oxide is removed from the production ponds, cleaned, dewatered, and transported either directly to a customer or to a processing facility for drying, milling, and packaging as EnvironOxide.
For more information, click HERE to download a copy of Dr. Robert Hedin’s technical paper, “Recovery of Marketable Iron Oxide from Mine Drainage.”
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#2: What is an “environmentally preferable product,”
and why is EnvironOxide™ considered to be one? |
According to the U.S. Environmental Protection Agency, environmentally preferable products or services are those that have “a lesser or reduced effect on human health and the environment when compared to other products and services that serve the same purpose.”
EnvironOxide are environmentally preferable because they are:
- A suitable replacement for iron oxide that must be otherwise mined or produced synthetically, thereby reducing the demand for raw resources;
- Recovered as part of the mitigation of a significant water quality issue, which is an innovative use of a waste material; and
Produced within the region, thereby increasing the demand for building materials and products that are extracted and manufactured within the region.
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| #3: How can EnvironOxide™ be used? |
Architects, masons, woodworkers, carpenters, landscape architects, and painters use products colored with iron oxide pigments every day. Products that are commonly colored with iron oxide include concrete, cement block and paving stone, mortar, roofing shingles, paint, wood stain, mulch, and plastics. Iron oxide is preferred in these products because it yields rich earth tone colors and is lightfast and chemical-resistant.
Hoover Color Corporation produces a family of earth tone EnvironOxide Pigments that are readily interchangeable with other iron oxide pigments, and can be used to color a wide range of products in diverse applications.
For specific product applications, please referto our Products page.
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| #4: How long have iron oxide pigments been used? |
Naturally-occurring colorants have been used throughout human history. Most of these colorants obtain their color from the mineral iron, which is found abundantly in the earth’s crust in a wide variety of hues. Very early in the history of humankind, iron oxides were adopted as pigments.
In the modern era, iron oxide pigment continues to be produced through the mining of natural ores, and also by synthetic processes.
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#5: Is there really a market for
all of that pigment?
How much EnvironOxide Pigment can be produced? |
As existing iron oxide reserves at abandoned coal mine sites are consumed, future resources will come from EnvironOxide production systems that are specially constructed to produce EnvironOxide ore from active mine discharges.
To meet the increasing demand for EnvironOxide pigment, Iron Oxide Recovery, Inc. continues to refine its recovery and processing techniques. In the coming years, EnvironOxide production systems having a collective capacity to produce 2,500 to 5,000 tons per year of iron oxide solids will be designed and installed.
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| #6: What is the relationship between Iron Oxide Recovery, Inc. and Hedin Environmental, Inc.? |
Hedin Environmental, Inc. is an environmental consulting firm that specializes in the assessment and remediation of coal mine drainage.
Using a patented passive treatment methodology, Hedin Environmental launched Iron Oxide Recovery, Inc. in 2001 to pursue the profitable production of iron oxide products from abandoned mine drainage.
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#6: How do I place
an order for EnvironOxide™ pigment? |
- To place a pigment order, please contact:
- Hoover Color Corporation
2170 Julia Simpkins Road
Hiwassee, VA 24347
540-980-7233
hoover@hoovercolor.com
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