珠江广州河段水体中三氮的转化分析

The Analysis of the Ammonia, Nitrite Nitrogen and Nitrate Nitrogen Transformation of Water Body in Guangzhou Reach of Pearl River

氨氮的污染是影响珠江广州河段水体中溶解氧低、水质差的主要原因^([1])。通过三氮(氨氮、亚硝酸盐氮、硝酸盐氮)转化的实验分析,进一步揭示了氨氮是水体中关键的污染物,它是水体中主要的耗氧污染物。要降低氨氮对河水的污染,必须减少氨氮的入河负荷量。在污水处理中要注意保证充分的溶解氧,溶解氧越多硝化反应的速度就越快,处理后排放的尾水中氨氮的含量就越低。该三氮转化的研究实验结果可为城市污水处理提供科学依据。

The high ammonia nitrogen is the important cause for lowering dissolved oxygen and for water pollution in the Guangzhou Reach Of Pearl River.This paper further indicates that the ammonia nitiogen is a key pollutant,also a pollutant of oxygen consumption by the test of the ammonia,nitrite nitiogen and nitrate nitrogen transformation.To reduce the pollution of ammonia nilrogen in rivcr,the load of the ammonia nitiogen that is discharged to water body must be abated.Pay attentions to keep an adequate DO in the sewage treatment plant.The more DO, the nitrification reaction is faster and the ammonia nilrogen that is discharged to the river is lower. This result provides a reference for the sewage treatment plant of municipality.