Oxidative chemical pretreatment by piranha solution for enhanced methane yield of wheat straw:mechanism and kinetic study
作者机构：Department of Environmental ScienceBabasaheb Bhimrao Ambedkar UniversityLucknow226025India
出 版 物：《Waste Disposal and Sustainable Energy》 (废弃物处置与可持续能源（英文）)
年 卷 期：2023年第5卷第3期
页 面：351-366页
核心收录：
学科分类：082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境]
基 金：the financial support received from University Grant Commission(UGC) New Delhi in the form of National Fellowship for Scheduled Caste Students(UGC-Ref.No.200510367941)
主 题：Anaerobic digestion Wheat straw Oxidative pretreatment Piranha solution Methane
摘 要：The present research work aims to explore the potency of piranha solutions at the best-optimized concentrations,i.e.,40%and 30%to reduce the recalcitrant and heterogeneous structure of wheat straw,and the treated wheat straw was denoted as WS40 and *** effect of pretreatment on wheat straw was determined by anaerobic digestion(AD)in a batch mode,followed by the analysis of soluble chemical oxygen demand(sCOD)and volatile fatty acids(VFAs).After pretreatment,the surface fibers shattered and detached,showing a distorted surface of wheat *** increase in the crystallinity of wheat straw after pretreatment was also observed due to the removal of amorphous cellulose and *** in methane yield was obtained on the 9th day,which was 103±6.92 and 99.33±0.57 mL/d for WS40 and WS30,*** water measurement revealed that the pretreatment of wheat straw minimized the hydrolysis period by 14 *** also improved the methane yield by 2.65(WS40)and 2.45(WS30)fold in comparison with the control which yielded 35.66 mL/d methane on the 23rd *** modified Gompertz model(MGM),logistic function model(LFM)and transference function model(TFM)adequately described the degradation process and explained the kinetic behavior of the cumulative methane *** the three models,MGM was found to fit best for the methane yield of WS40 and WS30.
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