The wastewater techniques developed gradually from the period of pure COD removal to the period of simultaneous COD and nitrogen removal.
污水处理技术逐渐地从以单一去除有机物为目的的阶段进入既要去除有机物,又要脱氮的深度处理阶段。
参考来源 - 序批式活性污泥法（SBR）同步硝化反硝化脱氮技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
对挂膜期间曝气生物滤池去除有机物和NH3-N的情况进行了分析。
The removal efficiency of organics and the NH3-N from the BAF during the film-forming period was analyzed.
该工艺具有工艺简单、适合于处理微污染水，能够有效地去除有机物和氨氮。
This simple technique may be used to treat micro-polluted raw water and can remove organic pollutants and ammonia efficiently.
论文通过测定分子量分布的手段来考察混凝和粉末活性炭去除有机物的效果。
The effect on removal of organics by coagulation and PAC was evaluated by means of determining distribution of MWC.
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