title: Improve the Anaerobic Biodegradability by Copretreatment of Thermal Alkali and Steam Explosion of Lignocellulosic Waste.
abstract: Effective alteration of the recalcitrance properties like crystallization of cellulose, lignin shield, and interlinking of lignocellulosic biomass is an ideal way to utilize the full-scale potential for biofuel production. This study exhibited three different pretreatment effects to enhance the digestibility of corn stover (CS) for methane production. In this context, steam explosion (SE) and thermal potassium hydroxide (KOH-60°C) treated CS produced the maximal methane yield of 217.5 and 243.1 mL/gvs, which were 40.0% and 56.4% more than untreated CS (155.4 mL/gvs), respectively. Copretreatment of thermal potassium hydroxide and steam explosion (CPTPS) treated CS was highly significant among all treatments and improved 88.46% (292.9 mL/gvs) methane yield compared with untreated CS. Besides, CPTPS also achieved the highest biodegradability up to 68.90%. Three kinetic models very well simulated dynamics of methane production yield. Moreover, scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and X-ray diffraction (XRD) analyses declared the most effective changes in physicochemical properties after CPTPS pretreatment. Thus, CPTPS might be a promising approach to deconstructing the recalcitrance of lignocellulosic structure to improve the biodegradability for AD.
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Muhammad Abdul Hanan
authors.initials: MA
authors.lastname: Siddhu
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Jianghao
authors.initials: J
authors.lastname: Li
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Jiafu
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Wen
authors.initials: W
authors.lastname: Wang
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Chang
authors.initials: C
authors.lastname: Chen
authors.affiliation: Biomass Energy and Environmental Engineering Research Center, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Guangqing
authors.initials: G
authors.lastname: Liu
mesh_terms: D000641:Ammonia / Q000032:analysis; D000693:Anaerobiosis / Q000187:drug effects; D001673:Biodegradation, Environmental / Q000187:drug effects; D001709:Biotechnology / Q000379:methods*; D006878:Hydroxides / Q000494:pharmacology*; D007700:Kinetics; D008031:Lignin / Q000737:chemistry*; D008697:Methane / Q000096:biosynthesis; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis; D017680:Potassium Compounds / Q000494:pharmacology*; D017550:Spectroscopy, Fourier Transform Infrared; D013227:Steam; D014866:Waste Products; D014961:X-Ray Diffraction; D003313:Zea mays / Q000737:chemistry / Q000187:drug effects
chemical_list: D006878:Hydroxides; D017680:Potassium Compounds; D013227:Steam; D014866:Waste Products; C036909:lignocellulose; D000641:Ammonia; D008031:Lignin; D009584:Nitrogen; D008697:Methane; C029943:potassium hydroxide