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– Information on Ion Change Resins including Resin equivalency charts for numerous brands, technical knowledge sheets and brochures from Res-Kem Corp.

– http://www.remco.com/ix.htm

– http://www.dow.com/liquidseps/service/ix_techinfo.htm

– F. Helfferich, Ion Change, McGraw Hill, New York, 1962 (Bible of the subject).

– Ion Exchangers (Ok. Dorfner, ed.), Walter de Gruyter, Berlin, 1991.

– Ion change (D. Muraviev, V. Gorshkov, A. Warshawsky), M. Dekker, New York, 2000.

– A. A. Zagorodni, Ion Alternate Supplies: Properties and Purposes, Elsevier, Amsterdam, 2006.

The animation below reveals what occurs within the adsorption beds. In the two-mixed bed ion exchange resin design, the beds alternate intervals of high and low pressure. The feed gas, proven in orange, enters the bed when the stress is high. Elements from the stream are preferentially adsorbed; to show this, adsorbents change shade from white to red in the animation. A small a part of the exiting stream, shown in brown, is used to desorb the collected species from the low-strain mattress. The adsorbents change in coloration from purple to white to demonstrate this. The low-strain mattress can now become the high-strain mattress, and the cycle can proceed using the alternative beds.

Sustaining Terrazzo

Terrazzo is pretty easy to maintain clean — especially if you’ve got had it sealed after installation. The biggest enemy of terrazzo is grit — it is vital to keep it off so the flooring would not get scratched. You can sweep, mud mop, or vacuum; just make sure you don’t use a vacuum cleaner with a beater bar, as a result of it may well drag grit. Then mop once every week or so with a neutral cleaner designed only for stone or terrazzo (common cleaners is perhaps too acidic or alkaline). Rinse effectively to maintain the shine. Conventional terrazzo stains more simply, so clear up spills quickly — but the sealer will assist repel stains. You might must strip and reseal periodically, so check together with your installer.

Sooner or later, spacecraft may presumably take us to the sting of our solar system and past. If that is to be doable, we will need spacecraft with built-in safeguards. These good-spacecraft can have to have the ability to sense and react to potential issues that may go unseen by their human passengers.

So why do you load up water softeners with salt if the plastic beads do all the work? Over several cycles, calcium and magnesium replace the entire sodium in the beads, after which the unit can now not soften water. To repair this downside, the softener enters a regeneration cycle during which it soaks the beads in a robust answer of water and salt, or sodium chloride. The sheer amount of sodium within the brine answer causes the calcium and magnesium ions within the beads to offer method, and the beads are recharged with sodium. After regeneration, the water softener flushes the remaining brine, plus the entire calcium and magnesium, via a drainpipe. Regeneration creates plenty of salty water — around 25 gallons (95 liters).