Storm Water Filtration with Zeolite

Storm-water Runoff

Zeolite can play an important role in meeting the pollutant reduction goals for the filtering of stormwater and stormwater runoff that contains soluble heavy metals, nutrients, ammonium, hydrocarbons, and even some organics. Zeolite is a natural granular product that is screened to various sizes depending on the application or required water flow for each project. The open inner honeycomb structure allows water to flow through granules and the ion-exchange abilities allow it to pull out and bind with pollutants as they flow through the zeolite, separating them from the stormwater.

Filtration

Ida-Ore’s Clinoptilolite Zeolite is available in numerous mesh sizes for your filtration needs. Generally the smaller the granules, the slower the flow rate through the system with a longer contact time but higher the backpressure on the system. Past projects typically have utilized the Zeolite Sand, Zeolite Medium, or Zeolite Kitty Litter.

Biofiltration

Many strains of Zeolite use mostly sodium oxide to reach their specified level of Cation Exchange Capacity. Ida-Ore Zeolite is a little different, the Zeolite from the Sheaville deposit that Ida-ore mines from uses 5% Potassium Oxide, 1.5% Calcium Oxide, 1.3% Sodium Oxide, and .3% Magnesium Oxide to reach the specified level of around 200 meq/kg CEC level. Please see our spec sheet for more detailed information including a full chemical makeup and priority ion-exchange of compounds.

Use of Compost and Mulch in bio-filtration