Regeneration of Wastewater

Consider the data in Table 26.10 for three water-using operations. It is desired to minimize the consumption of freshwater and generation of wastewater. A regeneration process is available with a performance that can achieve an outlet concentration of 5 ppm. 

Stream number Limiting water flowrate (t-h 1) Cin (ppm) Cout (ppm) Contaminant mass flowrate (g-h 1) 

Requiring Water With Lower Concentration than Regeneration Can Achieve 

Can Accept Inlet Concentration Greater Than Regeneration Can Achieve 

Move Operations to Balance Mass Load as Evenly as Possible Below the Reuse Only Pinch 

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The basic principle of regeneration was introduced in Figure 26.2. Regeneration is a treatment process but applied with the objective of reusing or recycling the water, rather than discharge to the environment. Regeneration of wastewater is most likely to be economic if... 

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