Evaluation of bio-energy recovery from the anaerobic treatment of municipal wastewater by a pilot-scale submerged anaerobic membrane bioreactor (AnMBR) at ambient temperature
Evaluation of bio-energy recovery from the anaerobic treatment of municipal wastewater by a pilot-scale submerged anaerobic membrane bioreactor (AnMBR) at ambient temperature
复制标题
环境温度下中试规模的浸没式厌氧膜生物反应器（AnMBR）对城市废水厌氧处理的生物能回收评估
DOI：
10.1016/j.biortech.2021.125551
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发表时间：
2021-07-20
影响因子：
11.4
通讯作者：
Li, Yu-You
中科院分区：
文献类型：
--
作者：
Kong, Zhe;Li, Lu;Li, Yu-You
采用一级中试规模的浸没式厌氧膜生物反应器（AnMBR），在25 ℃左右的环境温度下，研究了HRTs为24 ~ 6 h的条件下，从真实的城市污水中回收生物质能的潜力。该中试规模的AnMBR在217天的城市污水处理运行期间表现出超过90%的高COD去除率。从理论和实践两方面对膜生物反应器的能量平衡进行了计算。通过将运行数据应用于经验方程，计算出理论净能量潜力为0.174 kWh/m3，获得69.4%的生物能回收效率。实际的净能源潜力估计为-0.014千瓦时/立方米使用的功率发动机应用于一个全面的污水处理厂。这大大低于传统的活性污泥法。这些结果证明了AnMBR在城市污水处理中的潜力和可行性。
The potential of bio-energy recovery from real municipal wastewater was investigated using a one-stage pilot scale submerged anaerobic membrane bioreactor (AnMBR) for a range of HRTs from 24 h to 6 h at ambient temperature around 25 degrees C. This pilot-scale AnMBR demonstrated a high COD removal efficiency of over 90% during an operation of 217 days for municipal wastewater treatment. The energy balance of the AnMBR was calculated from both theoretical and practical aspects. The theoretical net energy potential was calculated as 0.174 kWh/m(3) by applying operational data to empirical equations, obtaining a bio-energy recovery efficiency of 69.4%. The practical net energy potential was estimated as-0.014 kWh/m3 using the powers of engines applied in a full-scale wastewater treatment plant. This is considerably lower than that of the conventional activated sludge process. These results are evidence of the potential of the AnMBR and feasibility in the treatment of municipal wastewater treatment.