【摘要】 目的研究一体式膜生物反应器(IMBR)中活性污泥增殖动力学参数随温度的变化规律.方法采用两套相同的IMBR实验装置做不同温度条件的对比试验,并在不同温度下求解出微生物理论产率系数YG和污泥衰减系数b的值,推导出YG和b随温度影响的规律.结果本实验求得YG和b的值在大多温度下不在普通活性污泥法YG和b值的范围内.YG和b随温度的升高,其变化趋势并不是单一的.相较于微生物产率系数YG的变化趋势,污泥衰减系数b的变化走向就显得平缓了许多.结论在30℃之前YG随温度得升高而降低,在30℃之后YG随温度得升高而升高.温度对污泥衰减系数b变化的影响并不大.更多还原

【Abstract】 The experiment systematically studies the activated sludge in IMBR which has the tendency of following the temperature change.Under different temperature conditions,the values of bacteria yield coefficient YG and sludge decay coefficient b are figured out,which result in the relationship between temperature and YG as well as b.The experimental result shows within which range YG and b increases with the increase of temperature.In comparison with the change of YG,the value of b goes more evenly.Therefore,below 30℃,YG goes up with the fall of the temperature;when the temperature is above 30℃,YG goes up with the rising of the temperature.The temperature does not have great influence on sludge decay coefficient b.更多还原