free ammonia

Free chlorine decayed in accordance with first-order kinetics, while aberrancy occurred and decay rates greatly declined when disinfectant reacted with organic matters or ammonia in slightly contaminated waters.

游离氯在水中的的衰减基本符合一级动力学，但在微污染水质条件下与有机物或氨氮反应后，总余氯的衰减偏离一级动力学，且衰减速率大大降低。

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In apition, to adapt to the free air-conditioning ammonia level in the stringent requirements.

此外, 为适应 空调 对游离氨含量的严格要求.

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It is concluded that the alternating inhibition effect of free ammonia ( FA) and free nitrous acid ( FNA) on nitrobacteria is responsible for the steady nitrite nitrogen accumulation.

亚硝酸氮稳定积累的主导因素是体系中游离氨（FA）和游离亚硝酸（FNA）对硝酸菌的交替抑制作用。

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The experimental results showed that the nitrite accumulation obtained from selective inhibition of high concentration free ammonia to nitrifier was unstable.

试验结果表明：通过高浓度游离氨对硝化菌选择性抑制所获得的亚硝酸盐积累是不稳定的；

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The pH level correlated with the free ammonia ( FA) and free nitrous acid ( FNA) was the primary factor for the denitrification process.

PH值与废水中的游离氨（FA）和游离亚硝酸（FNA）的浓度相关，是影响脱氮的重要因素。PH值越高，越有利于碳氧化阶段氨氮吹脱效果；

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