Thermophilic Hydrolysis and Fermentation to Produce Short-Chain Fatty Acids from Waste Sludge
Thermophilic conditions for waste sludge fermentation have been reported to produce more SCFAs than mesophilic conditions. In this study, A series of SCFAs production experiments were carried out under different sludge sources and conditions to calibrate and validate the proposed model. A kinetic model had been developed to understand the production of SCFAs from waste sludge via thermophilic fermentation. Good agreement was obtained between the measured SCFAs, soluble chemical oxygen demand and volatile suspended solids data and the model output results.
KeywordsShort-chain fatty acids production Thermophilic Hydrolysis Fermentation Kinetic modelling
The authors thanks to the Major Science and Technology Program for Water Pollution Control and Treatment of China (No. 2014ZX07305001) and Tsinghua University Initiative Scientific Research Program (No. 2014z21028).
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