大气中的一氧化二氮污染通常由纤维和其他有机物质的硝化作用产生。
Nitrous oxide pollution of the atmosphere occurs usually from the nitration of cellulose and other organic materials.
在厌氧状态下补充碳源会大大增强反硝化作用，提高对氮的去除效果。
Addition of organic carbon in anaerobic environment can enhance the denitrification process and improve the nitrogen removal efficiency.
地下渗滤系统中通过硝化、反硝化作用可以去除约50%的进水总氮，是地下渗滤系统去除氮的主要途径。
Biological nitrogen removal through nitrification and denitrification was the main removal mechanism of nitrogen, which could remove about 50% of influent total nitrogen.
结果表明，石灰氮对硝化作用有明显的抑制效应，并能抑制脲酶活性，延缓尿素水解。
The results showed that the effect of lime-nitrogen on the inhibition of nitrification is obvious, and it inhibited urease activity and decreased the hydrolytic rate of urea.
本文观察到酚酸类化合物分子中的酚羟基对土壤中氮硝化有关的微生物及酶具有毒性作用，是抑制土壤中氮硝化作用的主要影响基团。
It is observed that phenolic group in phenolic acids appeared toxic to microbials and enzymes, and was main group to effect inhibition of nitrification.
并进一步考察了上述两种底泥对水体中有机质、氨态氮和亚硝酸盐的去除能力，探寻了利用异养硝化作用改善水质环境的潜力。
From another point of view, our study tries to find a potential of heterotrophic nitrification for the improvement of contaminated aquatic environment.
生物脱氮系统中，硝化作用好坏是影响脱氮工艺效率的重要步骤。
Nitrification is an important step to affect nitrogen removal in biological treatment processes.
生物滤塔能有效完成对有机物的降解和硝化作用，人工湿地进一步去除氮、磷等污染物。
The biofilter can effectively complete the organic substance degradation and nitrification, and the constructed wetland system could further remove the nutriments, such as nitrogen and phosphorus.
人工湿地氮转化途径主要包括微生物的硝化反硝化作用、植物的吸收和湿地基质的吸附等。
The major nitrogen transformation pathways in constructed wetlands include nitrification and denitrification of microbe, plant uptake and adsorption by substrate.
结果表明，UNITANK的三池结构不利于反硝化脱氮，B池的缺氧设置能实现部分反硝化作用；
The results showed the triple-tank structure was not good for nitrogen removal of denitrification;
结果表明，UNITANK的三池结构不利于反硝化脱氮，B池的缺氧设置能实现部分反硝化作用；
The results showed the triple-tank structure was not good for nitrogen removal of denitrification;
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