Effect of ultrasonic application during KOH pretreatment and anaerobic process on digestion performance of wheat straw.

ABSTRACT: The digester performance was enhanced by ultrasonic application during pretreatment and the anaerobic digestion (AD) process. Two setups (with and without ultrasonic application) were applied during pretreatment and AD, to untreated and potassium hydroxide (KOH) pretreated wheat straw. The results confirmed that the ultrasonic application enhanced the hydrolysis process during pretreatment. The highest total volatile fatty acid (TVFA) (3012 ± 18 mg L^-1) production and overall lignin, hemicellulose, and cellulose (LHC) reductions (22.4 ± 0.5%) were obtained from ultrasonic assisted KOH pretreated (KOH_U) samples, after 36 hours of pretreatment. Similarly, the SEM analysis showed obvious disruption in the outer structure of KOH_U samples. However, the ultrasoni

SUBMITTER: Korai RM 

PROVIDER: S-EPMC9050064 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature