Abstract
The volatile fatty acids (VFAs) are kinds of effective external carbon source for enhanced biological nutrients removal. Volatile fatty acids (VFAs) production from anaerobic fermentation from cassava stillage (CS) wastewater, starch wastewater (SW) and the yellow wine wastewater (YWW) was conducted in batch tests. The VFAs production potential and the characteristics of the fermentative liquid were compared and discussed. Experimental results indicated that the cassava stillage wastewater and the starch wastewater were preferable feed for anaerobic VFAs fermentation. Acetic acid, propionic acid and butyric acid were the main components of the VFAs with respective percentage of 36.5%, 20% and 40% at the end of its fermentation.
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