Author/Authors
TUGTAS, Adile Evren Marmara University - Department of Environmental Engineering, Turkey
Title Of Article
Fermentative Organic Acid Production and Separation
شماره ركورد
43791
Abstract
Anaerobic digestion processes offer several benefits over aerobic ones such as higher organic loading rates and energy production in the form of methane. Recently, production of valuable fermentation intermediates instead of methane has gained a significant interest due to low calorific value and storage difficulties of methane. Organic acids, which are produced via anaerobic fermentation, can be subsequently removed/recovered via separation processes such as solvent extraction, chemical precipitation, adsorption, and electrodialysis. Chemical precipitation is not feasible for the short-chain fatty acids due to their high solubility at varying pH values. Solvent extraction is feasible for organic acid removal, however yields highly polluted waste. Adsorption processes are expensive, non-specific and not as efficient as other separation techniques. Membrane processes such as electrodialysis seem to be the most promising separation technique for the organic acid removal, however, more research needs to be conducted on the optimization of electrodialytic processes to reduce problems such as polarization, membrane fouling, and back diffusion.
From Page
70
NaturalLanguageKeyword
Adsorption , fermentation , electrodialysis , extraction , chemical precipitation , VFAs separation
JournalTitle
International journal of advances in engineering and pure sciences
To Page
82
JournalTitle
International journal of advances in engineering and pure sciences
Link To Document