生物脱氮工艺将传统的活性污泥、生物硝化工艺结合起来, 取长补短, 更有

生物脱氮工艺将传统的活性污泥，生物硝化工艺结合起来，取长补短，更有效的去除水中的有机物，污水处理后通过厌氧池-缺氧池-好氧池被降解。和有机氮的形式存在，通常仅含有少量或没有亚硝酸盐和硝酸盐形态的氮，在未经处理的污水中，氮具有可溶的也也具有非溶性的。可溶性有机氮主要以该和该盐的形式。在生物处理过程中，大部分的非溶性有机氮转化成氨氮和其他无机氮，却不能有效地去除氮。废水生物脱氮的基本原理。就是在有机氮转化为氨氮的基础上，通过硝化反应将氨氮转化为亚硝态氮，硝态氮，再通过反硝化反应将硝态氮转化为氮气从水中逸出，从而达到脱氮的目的

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The biological denitrification process combines the traditional activated sludge and biological nitrification process to learn from each other and effectively remove the organic matters in the water. The wastewater is degraded successively through the anaerobic tank, anoxic tank and aerobic tank. The nitrogen in sewage mainly exists in the form of ammonia nitrogen and organic nitrogen. Generally, there is only a small amount or no nitrogen in the form of nitrite and nitrate. In untreated sewage, the nitrogen is soluble and insoluble. The soluble organic nitrogen mainly exists in the form of urea and amino acids, and some of the insoluble organic nitrogen can be removed in the primary sedimentation tank. In the process of biological treatment, most of the insoluble organic nitrogen is converted into ammonia nitrogen and other inorganic nitrogen, but the nitrogen can not be effectively removed. The basic principle of biological denitrification of wastewater is to transform ammonia nitrogen into nitrite nitrogen and nitrate nitrogen through nitrification, and then transform nitrate nitrogen into nitrogen and escape from water through denitrification, so as to achieve the purpose of denitrification<br>