Bioenergy recovery from methanogenic co-digestion of food waste and sewage sludge by a high-solid anaerobic membrane bioreactor (AnMBR): mass balance and energy potential
Bioenergy recovery from methanogenic co-digestion of food waste and sewage sludge by a high-solid anaerobic membrane bioreactor (AnMBR): mass balance and energy potential
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DOI：
10.1016/j.biortech.2021.124754
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发表时间：
2021-01-30
影响因子：
11.4
通讯作者：
Li, Yu-You
中科院分区：
文献类型：
--
作者：
Cheng, Hui;Li, Yemei;Li, Yu-You
为了在城市垃圾管理和生物能源回收方面支持智慧城市，本研究开发了一种高固相厌氧膜生物反应器（AnMBR），用于处理污水污泥（SeS）和食物垃圾（FW）。COD质量平衡结果表明，在FW比分别为0、25%、50%、75%和100%时，输入COD转化为甲烷的比例分别为54.1%、66.9%、73.5%、91.4%和93.5%。相应的净能量平衡分别为13.6、14.1、17.1、22.9和27.4 kJ/g-VS。本研究的一个重要发现是，首次揭示了净能量平衡与碳氮比（C/N）之间的关系，并证明了所建立的s型函数能够预测不同地区不同碳氮比下的能量平衡。本研究的结果表明，高固体anmbr在SeS和FW处理方面具有支持未来智慧城市的潜力。
To support smart city in terms of municipal waste management and bioenergy recovery, a high-solid anaerobic membrane bioreactor (AnMBR) was developed for sewage sludge (SeS) and food waste (FW) treatment in this study. COD mass balance showed that 54.1%, 66.9%, 73.5%, 91.4% and 93.5% of the COD input was converted into methane at the FW ratio of 0, 25%, 50%, 75% and 100%, respectively. The corresponding net energy balance was 13.6, 14.1, 17.1, 22.9 and 27.4 kJ/g-VS, respectively. An important finding of this investigation was that, for the first time, the relationship between net energy balance and carbon to nitrogen (C/N) ratio was revealed and the established sigmoid-type function was shown to be capable of predicting energy balance at different C/N ratios regardless of the region. The outcomes of this study show the potential of high-solid AnMBRs in SeS and FW treatment for supporting smart cities in the future.