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Alkaline Pretreatment of Sugarcane Bagasse and Filter Mud Codigested to Improve Biomethane Production

文献类型： 外文期刊

作者： Talha, Zahir 1 ; Ding, Weimin 1 ; Mehryar, Esmaeil 1 ; Hassan, Muhammad 1 ; Bi, Jinhua 2 ;

作者机构： 1.Nanjing Agr Univ, Coll Engn, Nanjing 210031, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Jiangsu, Peoples R China

期刊名称：BIOMED RESEARCH INTERNATIONAL （ 影响因子：3.411； 五年影响因子：3.62 ）

ISSN： 2314-6133

年卷期： 2016 年

页码：

收录情况： SCI

摘要： To enhance the codigestion of degradation and improve biomethane production potential, sugarcane bagasse and filter mud were pretreated by sodium hydroxide NaOH 1N at 100 degrees C for 15, 30, and 45 minutes, respectively. Biomethane generation from 1-liter batch reactor was studied at mesophilic temperature (37 +/- 1)degrees C, solid concentrations of 6%, and five levels of mixing proportion with and without pretreatment. The results demonstrate that codigestion of filter mud with bagasse produces more biomethane than fermentation of filter mud as single substrate; even codigested substrate composition presented a better balance of nutrients (C/N ratio of 24.70) when codigestion ratio between filter mud and bagasse was 25 : 75 in comparison to filter mud as single substrate (C/N ratio 9.68). All the pretreatments tested led to solubilization of the organic matter, with a maximum lignin reduction of 86.27% and cumulative yield of biomethane (195.8mL.gVS(-1), digestion of pretreated bagasse as single substrate) obtained after 45 minutes of cooking by NaOH 1N at 100 degrees C. Under this pretreatment condition, significant increase in cumulative methane yield was observed (126.2mL.gVS(-1)) at codigestion ratio of 25 : 75 between filter mud and bagasse by increase of 81.20% from untreated composition.

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