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Abstract
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Article Information:
Variety of End Products at Different Ph Conditions and Thermokalite Pretreatment Cooperate with pH Controlling During Anaerobic Digestion
Wu Yun, Zhang Xianming and Zhang Daijun
Corresponding Author: Wu Yun
Submitted: April 03, 2012
Accepted: April 23, 2012
Published: August 15, 2012 |
Abstract:
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In this study, we show that the acetic acid was mainly product, accounting for 59.83% of total VFA,
propionic acid only accounting for 3.94%, composition of end products is most reasonable. Moreover, when
the pH was 4∼5 in anaerobic digestion, it was beneficial to following methanogenic process. In addition, we
show that the method that thermokalite pretreatment cooperated with pH controlling could promoted efficiency
of acidification and optimize composition of acidification production at same time, cumulative concentration
of total VFA increased by 68%, composition of end products was reasonable. Results of analysis from SEM
showed that microstructure of kitchen wastes had changed obviously after thermokalite treatment. Results of
kinetics analysis showed that acidogenic rate of the kitchen wastes was faster after thermokalite treatment.
Key words: Acidification products, anaerobic digestion, pH controlling, thermokalite pretreatment, , ,
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Cite this Reference:
Wu Yun, Zhang Xianming and Zhang Daijun, . Variety of End Products at Different Ph Conditions and Thermokalite Pretreatment Cooperate with pH Controlling During Anaerobic Digestion. Research Journal of Applied Sciences, Engineering and Technology, (16): 2862-2867.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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