氯胺消毒给水管网中的硝化作用及其控制

介绍了氯胺消毒管网中的硝化作用及其控制方法。研究表明，在采用氯胺消毒的给水管网中，存在着硝化反应发生的可能性。硝化作用会造成出水亚硝酸盐含量升高、消毒剂含量降低、异养菌繁殖等危害，水中的氨氮是引起该问题的主要原因。国外对氯胺消毒管网中硝化作用的研究主要集中在硝化作用与水质的相互影响方面，但对硝化作用成因的研究还不系统，部分研究的结论还属于推断性结论。目前我国部分城市给水管网中已经出现硝化现象，但还没有对氯胺消毒产生的硝化作用进行系统研究，指出在我国开展给水管网中硝化作用的研究是非常必要的。

Nitrification in Chloraminated Drinking Water Distribution System and Its Control

Nitrification in chloraminated drinking water distribution system and its control were introduced. The research shows that nitration reaction possibility, rise of nitrite concentration in treated water, lowering of disinfectant content, propagation of heterotrophic bacteria and other harms exist in chloraminated drinking water distribution system, and the presence of ammonia nitrogen is the main causation of nitrification. The foreign study on nitrification in chloraminated drinking water distribution system focuses on the reciprocal influence of nitrification and water quality, is not systematic in nitrification causation, and some conclusions are deductive. By now, nitrification has occurred in drinking water distribution system in some Chinese cities. However, there is not a systematic study on nitrification in chloramined drinking water distribution system. It is pointed out that it is necessary to do some research on nitrification in drinking water distribution system in China.