1. Water containing chlorate, CIO, is to be treated by ion exchange using a strong base...

 

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1. Water containing chlorate, CIO, is to be treated by ion exchange using a strong base resin (Type II, CH form). The wet-resin total ion exchange capacity (q) is equal to 1.25 eq/L. The water contains 5 mg/L of chlorate, and 10 mg/L chloride. Assume all other anions are negligible and use selectivity coefficients to calculate your answers. a) Calculate the selectivity coefficient for chlorate on the resin. b) What is the concentration of chlorate on the resin (in eq/L) in equilibrium with 5 mg/L chlorate and 10 mg/L of chloride? c) What is the concentration of chlorate on the resin if the water now contains 0.25 meq/L of nitrate in addition. to chlorate and chloride? 1. Water containing chlorate, CIO, is to be treated by ion exchange using a strong base resin (Type II, CH form). The wet-resin total ion exchange capacity (q) is equal to 1.25 eq/L. The water contains 5 mg/L of chlorate, and 10 mg/L chloride. Assume all other anions are negligible and use selectivity coefficients to calculate your answers. a) Calculate the selectivity coefficient for chlorate on the resin. b) What is the concentration of chlorate on the resin (in eq/L) in equilibrium with 5 mg/L chlorate and 10 mg/L of chloride? c) What is the concentration of chlorate on the resin if the water now contains 0.25 meq/L of nitrate in addition. to chlorate and chloride?

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