Because the rinse water flow rate for a nickel plating bath is quite high, it is proposed that the countercurrent rinse system shown in Figure P-2-12 be used to reduce the flow rate. Assuming that the C_n concentration remains the same at 28 mg/L, estimate the new flow rate. Assume that the rinse tank is completely mixed and that no reactions take place in the rinse tank.

FIGURE P-2-12

Countercurrent rinse water flow scheme.

 

Transcribed Image Text:

Q = 0.05 L/min C = 85 g/A. Q = 0.05 L/min C, = 28 mgL. Q = 0.05 L/min Parts Flow Plating Bath Rinse Bath Rinse Bath Rinse Water C =0 Q = ? 85 g/1. Q = ? Q = 0.05 L/min C = 85 g/A. Q = 0.05 L/min C, = 28 mgL. Q = 0.05 L/min Parts Flow Plating Bath Rinse Bath Rinse Bath Rinse Water C =0 Q = ? 85 g/1. Q = ?

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