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Aqualite™ — The superior water purification material

The JOSAB Ecological Aqualite™ System uses a product called Aqualite™, a clinoptilolite, which is a natural zeolite with exceptional adsorption capacity. Aqualite™ is found in the Ràtka mine, in Northern Hungary. After mining the large blocks of Aqualite™, further production takes place at JOSAB’s indoor production plant in Szerencs.

Aqualite™ is used in water purification systems, for producing pure drinking water from freshwater sources. Aqualite™ cleans the water in a single step, and the process is entirely free from chemicals. Water purified using Aqualite™ meets the quality demands of WHO’s regulation for drinking water.


The advantage of Aqualite™ is its physical/chemical adsorption, ion-exchanging and catalytic properties:

• Uniform pore structure and large pore volume
• Pore diameter 0.1 – 1.0 nanometer (nm)
• Filters particles greater than 1 microns
• Large specific area
• Reduces bacteria
• Reduces heavy metals, ammonium and hydrogen compounds
• Adsorbs chemical and petroleum products

Aqualite™ functions like a molecular strainer (sieve): i.e. it removes substances form water by adsorption.

Aqualite™ adsorbs:
Ammonia, nitrate, nitrogen, hydrogen-sulfide, heavy metals, carbon-oxygen, oil-derivates, ethylene, ethane, n-butane, etc.

Aqualite™ adsorbs and/or separates with catalytic effect:
Potassium (K), Iron (Fe), Manganese (Mn), Calcium (Ca), Strontium (Sr), Lead (Pb), Copper (Cu), Silver (Ag), Mercury (Hg), Nitrogen (N) and Nickel (Ni).

Aqualite™ is a bactericide which reduces Heterotrofa, Coliforma and E-coli bacteria with 91.5 – 97.5 %.

A special filter technology in combination with a UV sterilizer, guarantee clean and safe water. This technology is patented.


Properties and saturation of the ion-exchanger

Aqualite™ has a cation-exchange capacity, or in other words it is negatively charged.
This means that it will work as an ion-exchanger. When a solution containing cations is passing through the ion-exchanger, the cations will change place with the counter ions and thereby stay in the ion-exchanger and the counter ions goes into the solution.

Aqualite™ changes ions of pollutants to potassium- or sodium-ions, which are harmless.

Some cations will be bounded stronger in the ion-exchanger than others, the ion-exchanging priority order:
NH4 > K > Fe, Mn > Cs > Zn > Ba, Sr, Pb, Ca > Cu, Ag, Hg, Co > Al > Mg, Li > Ni

When a solution containing many cations from above priority order, passing through the ion-exchanger, the competition for the binding points will be arranged according to the priority order. At last all binding-points are saturated with cations from beginning of the above priority order, and the filter material has to be regenerated or replaced.
Physical properties of Aqualite™
Physical form: Grey granules
Size: 0.6 - 2.0 mm and 5.0 - 10.0 mm
Ionic form: Sodium
Ion exchange capacity: 1.2 - 1.3
mval/g
Adsorption capacity: 0.1 - 0.2 cm³/g
Dynamic water adsorption capacity: 26 mg/g
Particle density: 2.2 - 2.3 kg/l
Volume density: 0.8 - 0.85 l/kg
Active area: 200 - 500 m²/g
Hardness: 300 - 400 kp/cm²
Melting point: 400 °C
Water solubility: Insoluble


Optimal operating conditions Aqualite™
Max operating temperature: 80 °C
Minimum bed depth: 600 mm
Recommended bed depth: 1000 - 1200 mm
Service flow rate: 7 - 15 m/h at 1000 mm
Backwash flow rate: 25 - 40 m/h
Bed expansion: 30 - 40 %
Regenerant: NaCl 10 - 12% w/w
Regeneration contact time: minimum 6 ours
(normally 8 - 10 hours)
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JOSAB’s production plant in Szerencs, Hungary