214 



COAL-CONVERSION GASIFIER CONDENSATE 



Fig. 5 Effect of gasifier product water on population growth of 

 Tetrahymena at 28 C. Slopes of the mean log-phase growth lines 

 (based on three replicate determinations) for control populations 

 and for populations exposed to 0.2, 0.4, 0.6, and 0.8% condensate 

 are 0.013, 0.013, 0.006, 0.004 and 0.002, respectively. Analyses of 

 covariance were performed to test these slopes. Control and 0.2% 

 populations are not significantly different, but control and 0.2% 

 populations and the slopes for 0.4, 0.6, and 0.8% populations differ 

 significantly (P < 0.05). 



environmental screening of such untreated product streams to ensure 

 water quality and to avoid potential health hazards since the 

 coal-conversion process is advancing from bench-scale and pilot-plant 

 facilities to demonstration plants using 5000 tons/day and eventually 

 to commercial-level plants using 25,000 tons/day. 



The major organic components of the Synthane process gasifier 

 condensate are phenol, which alone accounts for 35% by weight of 

 the total organics present (Ho, Clark, and Guerin, 1976), and its 

 methyl-substituted derivatives. 



The most obvious effects of gasifier condensate on Tetrahymena 

 were changes in shape and discharge of its mucocysts. Similar shape 

 alterations and mucocyst discharge have been observed in ciliates 



