There are multiple benefits to using our Iron-Enhanced Sand Filters, including:

• Removal of several colloidal and dissolved constituents, including color and phosphates
• High pollutant removal rates
• Use as a retrofit for existing ponds and other stormwater BMPs
• Good for nutrient impaired water
• Could be used at sites with certain types of restrictions where infiltration is not appropriate or feasible
• Little maintenance needed following installation

For more information, visit our ZVI Sand Filter page.

Connelly-GPM, Inc. takes pride in being the world’s largest manufacturer of Iron Aggregate (ZVI), and 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.

Download our ZVI spec document here.

The equipment needed for Iron Sponge treatment consists of a vertical vessel (of at least 8 feet of straight side for high pressure service, or 5 feet for low pressure service), which is filled with Iron Sponge. The gas is passed down flow with the H2S removed to meet pipeline requirements until the Iron Sponge is exhausted. Then it is either revivified or replaced. Most installations can effectively operate on a single bed. If continuous operation is desired, then an alternate vessel and piping is needed to operate without interruption. Valves can be arranged so either bed can operate while the other is serviced.