Assume that the water of problem 6.20 is treated by an ion exchange process (hardness after ion exchange is zero). the desired level of hardness is 80 mg/l as caco3. the community uses 200,000 gallons of water each day. a. calculate the flow through the ion exchange units and the bypass flow required to meet the desired hardness level. b. list all of the ions in the water and indicate if their concentration will increase, decrease, or not change after ion exchange treatment c. how would using the lime-soda precipitation process for softening affect ion concentrations?
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Assume that the water of problem 6.20 is treated by an ion exchange process (hardness after ion exch...
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