Enhanced corn-stover fermentation for biogas production by NaOH pretreatment with CaO additive and ultrasound

Corn stover provides a great potential of bioenergy and biomaterial production through biorefinery, rather than being discarded as solid wastes. Appropriate pretreatments can enhance the biodegradability and digestion efficiency of lignocellulosics, and NaOH pretreatment is considered as an effective method. However, most NaOH pretreatments are usually performed at high temperatures (>100 °C) and over a long reaction time (∼days). In this study,...