The application of zeolites to water treatment has several categories, i.e. drinking water filtration; industrial waste; nuclear/radioactive waste treatment, animal Liquid Waste/Slurry treatment and Aquariums/Aquaculture. In each case, the purpose and need for filtration differ and the means of treatment differ. For instance, in the treatment of drinking water, natural zeolites are not used to soften potable water, but rather to remove troublesome cations that cause odors or foul tastes. An example is the purpose and usefulness of ZeoPrep, a product certified by the Water Quality Association and used specifically to improve the taste of drinking water.
Industrial waster water filtration requires filter media of different cation exchange capacities and media mesh sizes, depending upon the chemistry of the contaminant and the nature of the filtration process. For this purpose the TSM 140 media, produced in a number of mesh sizes, generally ranging from -4+8 mesh to -14+40 mesh, has many applications.
CS VR35000 is a media developed with the assistance of Duke Power Company specifically for the purpose of removing radioactive cesium and strontium from nuclear plant waste waters. CS VR35000 has the qualites of high cation exchange capacity and high abrasion resistant produced from the Mud Hills zeolite deposit in San Bernardino County, California, that is the source of the zeolite that is in current in use at the Sellafield, England facility of British Nuclear Fuels Ltd at the has been for the past 30 years.
Viscolight, is an animal slurry treatment product manufactured in Demark by Broste S/A and marketed throughout Europe. One of the ingredients of Viscolight is a special clinoptilolite zeolite, which serves to achieve the important benefits of: a) the binding of the ammonium within the slurry that both reduces odors and significantly increases the retention of the nitrogen content that is of major economic benefit, as well as of environmental benefit since the slurry is ultimately spread on the fields as a fertilizer; and b) the mixing of Viscolight into the slurry creates a floating layer of solid matter that improves the viscosity and reduces the difficulty of pumping thereby reducing the time necessary to clean the lagoon and improves the efficiency of the cleaning process.
There are a number of commercial aquarium filtration products on the market that use Steelhead natural zeolites as the filter media.
The following is a list of cations which can be removed by Steelhead Specialty Minerals zeolites.
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