Zeolite Membranes Catalyst Is a Term Paper

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Promotes better plant growth by improving the value of fertilizer. Helps prevent plant burning from over use of fertilizers by trapping and slowly releasing valuable nutrients when and as the plants need them.

Improves the cation exchange capacity of soil resulting in less fertilizer requirements.

Natural zeolites make an excellent soil amendment, and are environmentally friendly for landfill dump sites (with the exception of zeolite that has been used as a molecular sieve or filter medium for the removal of radioactive waste or the removal of heavy chemical toxins deemed hazardous by government regulations.)

Reduces nutrient and fertilizer loss through heavy rains, leaching and irrigation, resulting in less environmental damage through water runoff.

The water retention capability of zeolites allows less irrigation applications.

Zeolite is used to reduce offensive odors, especially ammonia from sewage, animal manure and waste water situations.

This retained valuable nitrogen improves the quality of the resulting manures and sludges making them worthwhile in fertilizers.

Improves water quality and filtration in aquaculture.

Increases the biological activity of sewage treatment and improves the value of resultant sludges.

Zeolite can be used in the removal of heavy metals from mining and metallurgical wastewaters.

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Under the Clean Air Act of 1990, producers are required to phase out designated substances that have Ozone Depleting potential. The manufacturing process of "W-Way Zeolite" products does not contain, nor are they packaged with any Ozone Depleting Compounds (ODC); this includes both Class 1 and Class 2 Compounds.

Natural Zeolites are regulated as non-hazardous material by the Dept. Of Transport.

Properties of Zeolites

Natural conductor (surface and bulk)

High sorption, ion-exchange and binding energies

Inherently electrically charged (-)

Durable and regenerative

Selective ion-exchanged capacity pH, chemical and temperature stable

High porosity and very large reactive surface area

Environmentally beneficial

Mineralogy

Modifications or improvement for this type of catalyst (Zeolite)

One of the modifications of zeolites is modification by iron oxides, which increases capacity of adsorption. In this work, we prepared a modified zeolite by the precipitation of magnetite on the surface of zeolite. This new adsorbent was used to remove of Pb (II) from waste water. The maximum adsorption capacity was 73, 25 mg/g from the solution of PB with the concentration of 400 mg/l......

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