温度和温度冲击对浸没式厌氧膜生物反应器性能和微生物群落结构的影响。
Effects of temperature and temperature shock on the performance and microbial community structure of a submerged anaerobic membrane bioreactor.
机构信息
Biotechnology Research Program, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, Canada P7B5E1.
出版信息
Bioresour Technol. 2011 Oct;102(19):8733-40. doi: 10.1016/j.biortech.2011.07.095. Epub 2011 Jul 29.
Effects of temperature and temperature shock on the performance and microbial community structure of a submerged anaerobic membrane bioreactor (SAnMBR) treating thermomechanical pulping pressate were studied for 416 days. The results showed that the SAnMBR system were highly resilient to temperature variations in terms of chemical oxygen demand (COD) removal. The residual COD in treated effluent was slightly higher at 55 °C than that at 37 and 45 °C. There were no significant changes in biogas production rate and biogas composition. However, temperature shocks resulted in an increase in biogas production temporarily. The SAnMBR could tolerate the 5 and 10 °C temperature shocks at 37 °C and the temperature variations from 37 to 45 °C. The temperature shock of 5 and 10 °C at 45 °C led to slight and significant disturbance of the performance, respectively. Temperature affected the richness and diversity of microbial populations.
研究了温度和温度冲击对处理热机械浆压榨液的浸没式厌氧膜生物反应器（SAnMBR）性能和微生物群落结构的影响，共进行了 416 天。结果表明，SAnMBR 系统在化学需氧量（COD）去除方面对温度变化具有很强的恢复能力。在 55°C 时处理后废水中的残留 COD 略高于 37°C 和 45°C 时的残留 COD。沼气产生率和沼气成分没有明显变化。然而，温度冲击会导致沼气产量暂时增加。SAnMBR 可以在 37°C 时耐受 5°C 和 10°C 的温度冲击，以及 37°C 到 45°C 的温度变化。在 45°C 时，5°C 和 10°C 的温度冲击分别导致性能的轻微和显著干扰。温度影响微生物种群的丰富度和多样性。
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