In the anoxic phase, without adding external carbon source, internal carbon source is used for denitrification.

在缺氧阶段，可利用内碳源实现剩余硝态氮的反硝化。

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In the anoxic phase, without adding external carbon source, internal carbon source is used for denitrification.

在缺氧阶段，可利用内碳源实现剩余硝态氮的反硝化。

youdao