Research Laboratory of Resources Utilization, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, Japan.
Appl Environ Microbiol. 1985 Dec;50(6):1526-30. doi: 10.1128/aem.50.6.1526-1530.1985.
The effect of temperature on the composting reaction of sewage sludge was investigated at 50, 60, and 70 degrees C. The total amount of CO(2) evolved and the final conversion of volatile matter were maximum at 60 degrees C., suggesting that the optimal temperature for composting was around 60 degrees C. The specific CO(2) evolution rate (moles of CO(2) evolved per hour per viable cell) was maximum at 70 degrees C. The isolated thermophilic bacterium which was dominant at 60 degrees C but did not grow at 70 degrees C showed that the rate of O(2) consumption measured on the agar plate at 70 degrees C was four times higher than that at 60 degrees C. This showed that the energy yielded from catabolism is rather uncoupled with the anabolism at 70 degrees C in the metabolism of microorganisms indigenous in the compost. A higher respiratory quotient was observed at 70 degrees C than at any other temperature.
温度对污水污泥堆肥反应的影响在 50、60 和 70°C 下进行了研究。在 60°C 时，CO2 释放总量和挥发性物质的最终转化率最高，表明堆肥的最佳温度约为 60°C。70°C 时，特定的 CO2 释放率（每小时每活细胞释放的 CO2 摩尔数）最高。在 60°C 时占优势但在 70°C 下不生长的分离出的嗜热细菌表明，在 70°C 下在琼脂平板上测量的 O2 消耗速率比在 60°C 下高四倍。这表明在堆肥中土著微生物的代谢中，70°C 时从分解代谢产生的能量与合成代谢的偶联相当不耦合。在 70°C 时观察到的呼吸商高于任何其他温度。
