The Feasibility of Shortening the Pretreatment Time for Improvement of the Biogas Production Rate from Rice Straw with Three Chemical Agents
文献类型： 外文期刊
作者： Du, Jing 1 ; Qian, Yu-ting 1 ; Xi, Yong-lan 1 ; Jin, Hong-mei 1 ; Kong, Xiang-ping 1 ; Zhu, Ning 1 ; Lv, Xi-wu 4 ; Zhang, 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Circular Agr Res Ctr, Nanjing 210014, Jiangsu, Peoples R China
2.Minist Agr, East China Sci Observing & Expt Stn Dev & Utiliza, Nanjing 210014, Jiangsu, Peoples R China
3.Jiangsu Collaborat Innovat Ctr Solid Organ Waste, Nanjing 210014, Jiangsu, Peoples R China
4.Southeast Univ, Coll Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China
关键词： Room temperature; Solid state; Chemical pretreatment; Straw; Methane production
期刊名称：BIORESOURCES （ 影响因子：1.614； 五年影响因子：1.923 ）
ISSN： 1930-2126
年卷期： 2019 年 14 卷 2 期
页码：
收录情况： SCI
摘要： Solid-state chemical pretreatment at room temperature was adopted to evaluate the methane production potential of rice straw. Dried rice straw was homogenized with distilled water at a 1:3 ratio and pretreated for 6 h, 24 h, 72 h, 120 h, and 168 h. The effects of the pretreatment time with three chemicals (H2O2, Ca(OH)(2), and NH3 center dot H2O) on the methane yield were investigated. The results showed that the anaerobic digestion performance was improved for solid-state chemical pretreatment of room temperature-treated rice straw. The biogas yields from the treatments with H2O2 for 168 h, Ca(OH)(2) for 72 h, and NH3 center dot H2O for 120 h were 386.6 mL/g VS, 413.5 mL/g VS, and 390.5 mL/g VS, which were 35.8%, 45.2%, and 37.2% higher than that from the untreated rice straw, respectively. Therefore, it is feasible to shorten the pretreatment time of rice straw for these three chemical solutions.
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