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针对这两个问题，本文利用污水厂的污泥水富集硝化菌，然后添加到污水处理系统，探讨生物添加对污水处理系统硝化性能与生物群落结构及数量的影响。
Ihese two issues can be solved simultaneously by bioaugment, that is sewage sludge water is used to enrichment the nitrifier, and then added to the sewage treatment system.
对焦化废水反硝化段的试样进行了细菌数量及菌相分析研究，对反硝化细菌在反硝化段生态环境中的分布进行了探讨。
The number and group of bacteria in the denitrified samples and the distribution of denitrified bacteria at the denitrified stage from Shanghai Coking Plant have been studied.
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