学術雑誌論文 Effect of alkaline microwaving pretreatment on anaerobic digestion and biogas production of swine manure

Yu, Tao  ,  Deng, Yihuan  ,  Liu, Hongyu  ,  Yang, Chunping  ,  Wu, Bingwen  ,  Zeng, Guangming  ,  Lu, Li  ,  Nishimura, Fumitake

72017-05-10 , Springer Nature
ISSN:2045-2322
内容記述
Microwave assisted with alkaline (MW-A) condition was applied in the pretreatment of swine manure, and the effect of the pretreatment on anaerobic treatment and biogas production was evaluated in this study. The two main microwaving (MW) parameters, microwaving power and reaction time, were optimized for the pretreatment. Response surface methodology (RSM) was used to investigate the effect of alkaline microwaving process for manure pretreatment at various values of pH and energy input. Results showed that the manure disintegration degree was maximized of 63.91% at energy input of 54 J/g and pH of 12.0, and variance analysis indicated that pH value played a more important role in the pretreatment than in energy input. Anaerobic digestion results demonstrated that MW-A pretreatment not only significantly increased cumulative biogas production, but also shortened the duration for a stable biogas production rate. Therefore, the alkaline microwaving pretreatment could become an alternative process for effective treatment of swine manure.
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http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/227902/1/s41598-017-01706-3.pdf

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