Effects of nanobubble water on digestate soaking hydrolysis of rice straw

HIGHLIGHTS

• What: This study investigated the combined impact of NW with digestate on the hydrolysis process of rice straw. The aims include: investigating the performance of O2NW and CO2NW on hydrolysis and acidification during soaking; evaluating the kinetics of their effects on methane yield; elucidating the change in the microbial community during soaking. To address the problem of less epiphytic bacteria and low hydrolysis efficiency of the rice straw, this experiment aimed to improve soaking pretreatment by adding NW and digestate. This study proposed that NW could enhance soaking hydrolysis effect and then accelerate subsequent biogas production by . . .
  

   

  

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