The Coffee Board of Kenya Monthly Bulletin April 1994

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1994
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Abstract
A survey was conducted in four sample coffee factories repre6entative of the Kenyan coffee industry with the aim of establishing the sources and characteristics of coffee processing waste waters.Variability in water usage was observed between these factories which was also a function of the factory layout and the processing procedures adopted.This variation was further attributed to the final washing and grading operations whose water use was the most variable besides having potentially the largest water demand depending on the efficiency of the personnel executing the operations. The water consumption varied from 9 to 13m3 and from 17 to 2Om3/tonne of coffee cherry processed with and without recirculation,respectively.The Chemical Oxygen Demand (COOl) values highlighted that pulping water with or without recirculation had the greatest pollution potential followed by pre-washing and final washing water.
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Bulletin, 59 (690), pp. 1745-1764
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