application of ion exchange resins to reduce hardness, corrosion and scaling of drinking water

In this research, the performance of strong cationic purolite c-100 na+, ambersep ir252 h+, amberlite ir120 h+ ion exchange resins and an ira402 oh- anionic resin have investigated to the reduction of hardness and tds of drinking water in bushehr, iran. also, to demonstrate the efficiency of these resins, the experimental variables affecting the ion exchange process such as contact time and adsorbent consumption were investigated. the results showed that the maximum adsorption capacity in the best operating condition was 48.01, 45and 36.01 mg.g-1 for purolite, ambersep, and amberlite resins respectively. the maximum percentage of total hardness reduction parameters, calcium and magnesium ions reduction at best operating condition was 90.086 %, 93.085 %, 77.27 % for purolite ion exchange resins, 83.84 %, 86.70 %, 71.59% for ambersep ion exchange resins and 69.83, 69.41, 69.32 for amberlite ion exchange resins, respectively. finally, purolite c-100 na+ resin has the highest removal percentage in reducing the total hardness and decreasing calcium and magnesium ions.