异养细菌可以吃掉未处理污水当中的大部分碳基物质；而自养细菌则会消耗掉氨氮化合物。
Heterotrophic bacteria eat most of the carbon-based materials in raw sewage while autotrophic bacteria consume ammonia and nitrogen compounds.
采用间歇式活性污泥法测定了自养细菌最大增长速率，分析了测定过程中的影响因素。
The batch activated sludge method was used to determine autotrophs maximum growth rate. In addition, affecting factors were also investigated.
设备内的水管使气泡穿过设备，为自养生物提供养分，同时使污水循环，为细菌提供养分。
Tubes within each device pump air bubbles through to support the autotrophs. This also circulates the sewage to feed the bacteria.
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