Microbial common strike of the combination process includes inlet COD, BOD, alkalinity, low dissolve oxygen of aeration pond.

该工艺组合中微生物经常受到的冲击有进水COD、BOD、碱度和曝气池低溶解氧。

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Study in the effect of the dissolve oxygen concentration in aerobic zone on the reactor.

好氧区溶解氧浓度对反应器处理效果影响的研究。

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But much of that dip appears to be the result of microbes using oxygen to dissolve oil underwater, and the decline is not enough to be fatal to marine life, said National Oceanic and Atmospheric Administration official Steve Murawski, the head the Joint Analysis Group studying the spill's impact.

CNN: No signs of 'dead zone' in Gulf, feds say