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~... 0) -.l C.V The wastewaters contain large quantities of ammonia and carbon dioxide, hydrogen sulfice, a,d organic matter which are ~ostly biodegradable. Ha~ever, the waters are low in phenol content, unlike the coal gasification foul condensate, which is high in phenol. Thus, insofar as treatment of t~e ~aste~ater to cooling water makeup quality is concerned, i~ would be very similar to the treatment of foul concensate. (See Section 2.7). Ammonia, hydrogen sulfide and carbon dioxide are removed by stearn stripping and ~onia and sulfur recovered in ammonia separation and sulfur recover/ units. Biological ox~dation will remove the organics from the stripped ~astewaters. The costs of these trea~~ents are estimated in Section 2.7. 3.5 Sour Water Stripoer Wastewater In the White River design the wastewater from the sour water stri?pers is estimated to have a quali~y shown in Table 3-6, with a flow ra~e of 225 gpm (~ 360 acre-ft/yr) for the 50,000 barrel/day White Piver design or a flow rate of about 260 spm (= 420 acre-ft/yr) for a plant producing 50,000 barrel/day of synthetic crude. ~he ~ater appears to be highly biodegradable. The water is then treatec by flotation to remove oil and then a biological oxidation sys~em to r~ove the arq~'ics. It is then used for dust control withi~ t~e plant . The BOD is estimated to be in ~~e range JOO-IOOO mg/l. The cost of biological oxidation falls in the range 80-120~/lOOO gals (See Section 2.7) ~it~ the concentration of the ~roduct water less than 20 mg/l of BOD .....it:" phenols less tha... 1 mg/l. 3.6 Domestic Wastes from Plant A discussion on the quality and treatment of wastewater f=vID potable and domestic usage is found in Section 4.5. The quantity of wastewater is relatively small, about IS gpm (= 24 acre-ft/yr) for both the Tosco II and Parana ~i=ec~ designs shown in Figures 3-J and J-4. 68