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ESI - Model MZ -Stormwater Media
ESI MZ is a patented, modified alumino silicate that is designed to absorb anions such as chromate, selenate, sulfate, hydrocarbons (e.g. benzene, toluene, and xylene), heavy metals (e.g. lead and cadmium), and various petroleum products from aqueous waste streams.
The basic concept involves imparting hydrophobicity to alumino silicate substrate by coating it with a strongly bound hydrophobic compound. Other hydrophobic chemicals, such as hydrocarbons, prefer to combine with the surface-modified particles rather than maintaining suspension in water. The treated alumino silicate also absorbs inorganic oxyanions such as chromate, phosphate, ammonia and sulfate while maintaining its natural absorbtion capacity for heavy metals. The base media is an alumino silicate with an exceptional cation exchange capacity. The modifying agent is a strong cation that replaces other cations on the surface producing a surface anion exchanger.
- Cation exchange capacity: 2.2 meq/g
- Bulk density (treated): 55 bs/ft3
- Hardness: 5.1 mohs
- Pore size: 4.0A
- Thermal stability: 1,202F
- Specific surface area: 40 m2/g
- Mesh size: 4×6, 6×14
- Crushing strength: 2,500 lb/in2
ESI MZ can be effective in removing many contaminants from waste streams, including oil, grease, heavy metals, and biological pathogens.
See more contaminants that MZ can remove