Simultaneous pretreatment and acidogenesis of solid food wastes by a rotational drum fermentation system with methanogenic leachate recirculation and andesite porphyry addition

文献类型： 外文期刊

第一作者： Lu, Jingwen

作者： Lu, Jingwen;Li, Dawei;Jiang, Weizhong;Li, Baoming;Chen, Ling;Kitamura, Yutaka

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关键词： Andesite porphyry;Leachate recirculation;Rotational drum fermentation system;Simultaneous pretreatment and acidogenesis;Solid food waste

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

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收录情况： SCI

摘要： A simultaneous pretreatment and acidogenesis process was developed by recirculating methanogenic leachate and adding andesite porphyry (WRS) powder to a rotational drum fermentation system to enhance the anaerobic digestion of solid food wastes. In the continuous operations, methanogenic leachate recirculation significantly increased hydrolysis rates and volatile solids (VS) degradation. The VS degradation ratio and the hydrolysis rate constant at a higher leachate recirculation ratio (2:1 weight ratio of methanogenic leachate to substrate) were increased by 2.1- and 1.4-fold, respectively, compared to those of the lower ratio (1:1 leachate recirculation ratio). A 10% (weight ratio of WRS to substrate solid content) WRS addition assisted the biochemical reactions in the process at the higher leachate recirculation ratio was employed. The hydrolysis rate constant and VS degradation were elevated by 54.7% and 63.9%, respectively, with the WRS addition. Besides, the WRS addition enhanced the VA formation and its conversion to biogas.

分类号： Q

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[1]Using porphyritic andesite as a new additive for improving hydrolysis and acidogenesis of solid organic wastes. Li, Dawei,Jiang, Weizhong,Cheng, Fan,Li, Baoming,Zhou, Tao,Chen, Ling,Kitamura, Yutaka.

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