Energy Requirements

0 1000 2000 3000 4000 5000 6000 gpm igure 25. Energy requirements compared with capacity.

WASTEWATER FLOW TO EVAPORATOR igil/ll)

Nota«.-Evaporation it I.J lb/In1 absolut*. Wmt-ittr «I 100* F. Cao4lrtg watar supply it 70" F. Stum luppiy «1 [5 lb/in2 gauga. Rising fFlM or lutMKfQ«] lutM. Eunpl«: A ilnqli (ff«i tviponior boiling 10 gal/h of w4it«wai«r at Eb/JnJ JOKMut* prviiur-* JTJ« tht following utility requirement■ : liaaai (IS lb/irtJ gaug*J. 710 lb/h: electric power, 2.J kWh: cooling H O at T ■ 25* F. S6 gal/ntin.

figure 26. Utility requirements tor a single-effect evaporation system.

WASTEWATER PLO« TO EVAPORATOR (giflh)

WASTEWATER PLO« TO EVAPORATOR (giflh)

tMd '100* F. CooJJn? watar lupply «I 70* F. Stur* supply Ii IS nwin* gjuqa-

Figure 27. Utility requirements for a double-effect evaporation system.

SEPARATOR I Liquld/vi(W

COiiLTCftMIt

SEPARATOR I Liquld/vipor "1"111

Liquid

Second iffKl

Cooli'nj «vflttr

Cooling Water

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