6. (Learning objective #12) Ocean Water has a salinity of 35,000 mg/L and Marcel

Question

6. (Learning objective #12) Ocean Water has a salinity of 35,000 mg/L and Marcellus Shale flowback water has a salinity of 200,000 mg/L. You are treating 20 MGD of ocean water with reverse osmosis and an engineer suggested that you use the brine for Marcellus Shale. a. If you assume that final concentration of brine is 200,000 mg/L and the salinity in the clean water is 50 mg/L, calculate the expected recovery. (82.5%) b. Is this reasonable according to the notes? 7. (Learning objective #1, #10 and #11) You are running a summer camp for middle school children and they want know why salt can only be removed using reverse osmosis and not a sand filter or an activated carbon filter. Explain In words how reverse osmosis works to remove salt and how it is different from sand filtration and activated carbon.

Explanation / Answer

6. (Learning objective #12) Ocean Water has a salinity of 35,000 mg/L and Marcel

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