Big River Industries Lightweight Aggregate
Billions of dollars are spent annually to address environmental concerns about the threat of stormwater runoff to our clean water supply. Big River Industries is providing new, consistent and cost effective options to meet these concerns. Big River lightweight aggregates provide design flexibility for storm water management programs designed to solve this environmental crisis.
Self Contained Urban Stormwater Systems
Bioswale is a linear drainage media channel, planted with appropriate vegetation for the bioremediation of pollutants from urban storm water runoff. The collected runoff slowly flows at a shallow depth through the media and vegetation, but generally has little or no ground infiltration.
Filter strips are areas of vegetation over which dispersed runoff sheets flow at a very shallow depth. Filter strips are very well suited to treat runoff from impervious areas such as parking lots and may be designed into the overall landscape as parking area islands or edge borders.
Rain gardens, unlike a bioswale, are designed to retain water and allow infiltration. Water is cleansed by vegetation and by simple soil systems filtration.
Rain basins are an integral part of a storm water management design that is gaining in popularity. Runoff water is collected and cleansed in order to infiltrate into the ground, thus reducing or eliminating storm water runoff into the municipal system.
Big River Industries - FiltRocksTM Filter Media
All of these design methods are known to be effective in capturing solids, oils and less soluble metals. In the removal of oils, such vegetative systems have been shown to be an economical choice due to the fact that vegetation is much less expensive than oil separators. However, these methods previously have not been very effective in the treating of more soluble metals and even less effective in the case of phosphorus. Water can now be treated to a level never before attained in such designs because of Big River Filter Media's proven ion exchange capability to immobilize phosphorus and arsenic with superior filtering properties. The durability of the media and high hydraulic conductivity provide for longevity of service, smooth drainage, and consistent operation.
FiltRocksTM filter media is an inert, durable, manufactured media with proven ability to remove phosphorus. Its microstructure makes it an ideal host for bacteria which are the real work horses in the biological treatment processes. FiltRocksTM filter media is a natural in a treatment system due to its excellent filtering capabilities. In the leach fields, the media with its ion exchange properties facilitate a quick immobilization of phosphorus and other nutrients. In addition, Big River Filter Media's long-term ability to absorb nutrients and hydraulic conductivity, ensure the treatment function is effective and sustainable.
FiltRocksTM filter media is a proven, superior bed and substrate material with the highest phosphorus removal properties found in materials of its class. Big River Filter Media also removes metalloids and is an excellent filter for total suspended solids, oils and grease. The hydraulic conductivities of FiltRocksTM filter media allows effluent to flow freely with minimal risk of system clogging.
A key component in quality design and construction involves selection of suitable drainage media and cover material. Low densities reduce dead load and high angles of internal friction lower lateral forces, making FiltRocksTM filter media particularly well suited for use as a protective cover material for landfill geo-membranes, and as drainage filtration media.
FiltRocksTM filter media contains little or no calcium or carbonates, which are major causes of clogging. Rather, it is an acid resistant, inert, durable activated ceramic media, ensuring filtration media success. FiltRocksTM filter media has hydraulic conductivities that meet and surpass regulatory requirements, facilitating smooth removal of impurities, improving function, and ensuring longer service life.
Advantages of using FiltRocksTM filter media:
- Unique Manufactured Media
- Physically and chemically stable
- Ceramic properties reduce material breakdown
- High angle of internal friction
- Low freight and handling cost
- Reduces dead load and lateral forces
- Tough particles don't fracture easily, reducing risk of puncture of geo-membrane/textile
- Turn onsite water treatment into an aesthetic, Green show piece
- Employs ion exchange to enhance treatment process
- Removes Phosphorus, Arsenic, Metals, Grease, Oils and more
- Combines nutrient removal and effluent filtration for a cleaner discharge
- Longer and higher levels of nutrient removal
- Removes TSS and solid material preventing clogging downstream
- Predictable performance
- Hydraulic conductivity allows fast, free drainage of filtered, treated effluents
- Low maintenance cost - Long service life
- Economical, readily available, and easy to use
Product Documents:
Storm Water Brochure
Sustainability Brochure
Green Brochure
FiltRocks Filter Media Info Sheet
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