活性污泥驯化的微生物生态学原理

Microbial Ecology Principle of Activated Sludge Acclimation

摘要:

活性污泥是一种复杂的、具有生物多样性的微生态系统。生物多样性是活性污泥驯化的基础, 驯化条件对微生物进行选择—— 适者生存增长, 不适者被抑制或淘汰。此外, 活性污泥微生物还能够通过表型适应和进化性适应主动地去适应驯化条件。活性污泥驯化的过程是微生物生态位在生态系统中重新分配和调整的过程, 符合生态学“选择与适应”的原理。依据这种原理, 原污泥、废水水质和处理工艺是影响活性污泥驯化的主要因素。

Abstract:

Activated sludge is a complicated microbial ecosystem that has diversity. Based on the diversity, microorganisms are selected by acclimation condition: the survival of the fittest, otherwise eliminate through selection or contest. Moreover, microorganisms in activated sludge acclimatize themselves to acclimation conditions. In the process the ecosystem distributes and adjusts microbial niche over again. The theory of “selection and acclimatization” may be used to explain the mechanism of activated sludge acclimation. So then, original sludge, wastewater quality and treating process are major influencing factors for activated sludge acclimation.