How do you calculate resin for ion exchange?
Use the following formula to calculate the proper size: 1. Multiply the number of people in your family times 70 (gallons of water used per day, national average). 2. Multiply the answer by your water hardness in grains per gallon (to convert mg/l or ppm to grains, divide by 17.1).
How is softener OBR calculated?
NaCl required per liter of resin – 150 Grams. Solubility of NaCl per liter of water @ 20 Deg C – 320 Grams. Resin ion exchange capacity is important, it may vary product to product. Unit of exchange capacity is g/L as CaCO3….Water softener calculation.
|Resin quantity (Liters)||OBR (Liters)|
How do we regenerate the resin in our ion exchange columns?
The strong acid cation exchanger resin is regenerated with sulphuric or hydrochloric acid, which effectively strips off the calcium, magnesium and sodium from the resin, substituting hydrogen. Hydrochloric acid is typically applied at between 4 and 6%.
What is resin regeneration?
Regeneration is a process that takes ion exchange resin beads that are exhausted (fully loaded), and removes ions that have been picked up during the in-service cycle so the resin can continue to be used.
What is meant by capacity of ion exchange resin?
In general terms, the capacity of an ion exchange resin can be expressed as the quantity of ions that can be taken up by a specific volume of the resin. A measured quantity of cation resin, for example, is fully converted to the hydrogen (H) form with an excess of strong acid and then well rinsed.
What is ion exchange capacity of resin?
Definitions. In general terms, the capacity of an ion exchange resin can be expressed as the quantity of ions that can be taken up by a specific volume of the resin.
What is the exchange capacity of resin?
Each litre of ion exchange resin will thus be able to treat 1100 / 4.4 = 250 litres of the hard water before having to be regenerated….Operating capacity in practice.
|Resin type*||Total capacity||Operating capacity|
|SAC||1.7 to 2.2 [2.0]||0.6 to 1.7|
|WBA||1.1 to 1.7 [1.3]||0.8 to 1.3|
|SBA||0.9 to 1.4 [1.2]||0.4 to 0.9|
How do you calculate salt regeneration?
A standard calculation for salt usage could be done as follows: [No. of people x gallons per person in one day x 110 (hardness)] ÷ efficiency of salt exchange. 2 x 65 = 130 x 110 = 14,300 grains in one day. Divided by 2,000 grains removal per pound of salt equals 7.15 pounds per day.
What is exchange capacity of resin?
One important characteristic of ion exchange resin is its capacity, expressed in terms of milliequivalents of exchangeable ion per gram of resin. Exchange capacity can be measured by exchanging sodium ion (Na+) for. hydrogen form (H+ initially attached to the resin).
What is resin in ion exchange?
An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange. It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
How are spent resin regenerated?
After a number of treatment cycles, the used resin becomes spent or exhausted and needs to be regenerated to eliminate the accumulated ions. The spent ion exchange resin must be treated with a regenerant solution containing ions that exchange with the accumulated ions in the resin to recharge it.
What is IX resin regeneration?
What is IX resin regeneration? Over the course of one or more service cycles, an IX resin will become exhausted, meaning that it can no longer facilitate ion exchange reactions. This happens when contaminant ions have bound to nearly all available active sites on the resin matrix.
What are the benefits of ionic exchange resins?
Ion exchange (IX) resins are often highly effective for removing hardness, alkalinity, chloride, mercury, and organics, among other contaminants. While they can offer some efficiencies over other treatment technologies, they also call for specific maintenance processes.
How does this calculator help you design an ion exchange installation?
This calculator helps you with the design of a ion exchange installation. The calculator is based on the following process: The calculations are made using theoretical equations. As a consequence this calculator ONLY gives you an indication about the different parameters that are necessary to design an Ion Exchange water treatment installation.
What is resin regeneration and how does it work?
The basic purpose of resin regeneration is to restore the exhausted resin back to its proper ionic form for service. Although there are various manuals and sources that contain information on how to regenerate resins, for many, guessing plays a major role in this process.