A manufacturer of cheese sticks produces a wastewater flow of 2000 m3/day containing 120,000 mg/L salt. It is discharging into a river with a flow-rate of 34,000 m3/day and a salt concentration of 50 mg/L. The regulatory agency has told the company to maintain a salt level of no greater than 250 mg/L downstream of the discharge.

If no salt was recovered, what would the downstream salt concentration be when the two water flows mixed?

How much salt must be recovered from the wastewater prior to discharge to meet the regulatory requirements? Express your answer in both mg/L and kg/day.