The results showed that this process was effective, and the surplus sludge volume was little.

结果表明，此工艺的脱氮效果良好，剩余污泥产量低。

youdao

The results showed that this process was effective, and the surplus sludge volume was little.

结果表明，此工艺的脱氮效果良好，剩余污泥产量低。

youdao