SZT is an inorganic silicate compound in a free-flowing, ultra-fine 4micron powder form. The compound has a negatively-charged surface that promotes cation exchange. Because of its negative polarity, SIRT SZT has a very high cation exchange affinity for dissolved contaminants like ammonium (NH4+) and heavy metals: e.g. Mercury, Nickel, Copper, Cadmium and Lead.

The interior channels (or pores) are 0.3 to 0.7 nanometers in diameter that act like a molecular sieve to aggressively screen and secure molecules according to size and exchangeable ions. SZT has a unique crystalline lattice structure of exceptional strength and stability so it won't crumble in many handling processes.

When used as directed in waste water treatment, SZT provides improved settling, water clarification, ammonia and dissolved metal adsorption, odor control and other purifying benefits.
It can readily be used in soil remediation applications because of its particle size. In PoU applications, the products high capacity and strong kinetics make it suitable for paper, block, and non-woven media applications. A granular (100-150 micron) product is forthcoming. The product is suitable for:

  • Municipal & Industrial water treatment;
  • Various residential water filter devices;
  • Mining waste water; Landfill barriers
  • Biological wetlands; Storm Water runoff
  • Aquaculture;
  • Soil remediation for heavy metal contaminants.
Adsorbents - SZT Granular

Typical Properties  
Physical Form Silicate, Free flowing powder.
Color White
Cation Exchange Capacity > 3.0 meq/g
Bulk Density 25-30 lb./ft3 0.44 g/cc
Solubility in Water Insoluble
Chemical Composition Proprietary Silicate
Surface Area, BET >600 m sq./g
Moisture Content (LOD%) (per ASTM D-2116) <10%
Particle Distribution >d50 ≥ 2.5 micron, d90 ≥ 10.0 micron