他们发现这些产生甲烷气体的堆积污泥中含有4962种不同种类的菌类。
They found a diverse array of 4,962 types of bacteria making up the gas-belching sludge.
针对污泥厌氧消化的工艺设计，探讨了消化方式、池容、池形、搅拌、加热与气体收集系统设计等几个典型问题。
Some topics such as digestion approach, reactor volume and dimension, agitation, heating and gas collection system are discussed in this paper concerning Process Design for Sludge Anaerobic Digestion.
含有有机固体污泥毯将进行逐步分解消耗氧气，导致有害气体的产生。
Sludge blankets containing organic solids will undergo progressive decomposition resulting in oxygen depletion and the production of noxious gases.
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