A novel generation of biological biofilm reactor, biological turbulent bed reactor（BTBR）, was used in the tests. The stability of nitrosofication process selection wasdiscussed under high ammonia or low dissolved oxygen, competition betweenheterotrophic and autotrophic bacteria was studied.
采用生物紊动床分别在高氨和低溶解氧条件下，探讨了亚硝化选择过程选择的稳定性；研究了有机物存在时，硝化菌和异养菌的竞争及以亚硝酸为基质的反硝化的特点。
参考来源 - 生物膜内亚硝化过程及反硝化特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
These species could tolerate the organic pollution and low dissolved oxygen.
优势种为轮虫类和枝角类，这此种类极耐有机污染，耐低溶氧。
Oxygen sag — a point of low dissolved oxygen concentration generally located around effluent injection points.
氧松弛——低溶点氧通常集中位于污水注入点附近。
Hydropower plants can cause low dissolved oxygen levels in the water, a problem that is harmful to riverbank habitats.
水电厂会导致水中的氧气溶解度降低——(这是)一个对岸边生存环境有害的问题。
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