Ryonex specialises in the application and regeneration of ion exchange resins.

Based on your water quality and water usage requirements, the system design could be mixed bed only or separate bed cylinders with mixed bed polishing for higher usage and water quality applications.

Other options such as Ultraviolet light and sub micron post filtration are also available.

Your deionisation system will be serviced every 90 days, or sooner if required.

The exhausted cylinders are replaced with freshly regenerated resin beds, and the exhausted resin cylinders are take to the Ryonex facility to be regenerated and returned to service.

What is deionisation ?

Deionisation is the most efficient process known for removing dissolved salts and minerals from water, the process removes these impurities by ion exchange.

Synthetic ion exchange resin, charged with either hydrogen (H+) or hydroxide (OH-) ions, release their ions in exchange for the positively charged cations (Mg++, Ca++, Na+, etc.) or negatively charged anions (CO3=, SO4=, Cl-, etc.), which may be present in the water supply.​

An efficient mixed bed deioniser, combining both cation and anion resins, can produce water that approaches the theoretical limits of purity (18.24 megohm-cm resistivity at 25ºC).

As a practical matter 18 megohm-cm is the ultimate attainable purity. Ryonex deionisers can achieve these levels in applications that require it.

Mixed bed deionisation

Mixed Bed deionisation utilises only one ion exchange tank with both cation and anion exchange resin mixed to produce an infinite number of separate bed ion exchange sites within the single tank.​

Water quality from a mixed bed system is much higher than separate bed, with 18 megohm-cm or .028 parts per million possible. In many applications the mixed bed deionisers are preceded by separate bed deionisation units to produce large volumes of water from the units

Separate bed deionisation

In separate bed deionisation, dissolved cations (Mg++, Ca++, Na+, etc.) are removed by directing the feed water through a bed of cation exchange resins.

​​The water then flows through a bed of anion exchange resin to remove the negatively charged fraction of the dissolved solids in the water (HCO3-, CO3-, Cl-,SiO2, etc). Separate bed deionisation can remove more than 99% of the dissolved ions in a water supply, depending on the constituents of the water, regenerant chemicals type, and litres used.

Product water quality from separate bed deionisation systems is typically within the 1 megohm-cm range, approximately 1 part per million as CaCO3.