湘江株洲段氨氮污染变化趋势及规律研究

The Change and Investigation of Ammonia-Nitrogen Pollution in Zhuzhou Section of Xiangjiang River

对湘江干流株洲段中氨氮在近10年来时间、空间上的变化规律进行了全面分析。结果表明,氨氮污染的空间浓度变化较明显,霞湾断面的氨氮含量最高;通过对污染源的治理,目前氨氮污染有减轻趋势;同时对污染源情况进行详细调查,工业污染源相对畜牧业、非点源的污染较重,但未经处理的生活污水,则成为湘江株洲段最重要的氨氮污染源。

The comprehensive analysis was made to the pollution of ammonia-nitrogen in Zhuzhou section of different time and space in the latest 10 years.The results show that the pollution of ammonia-nitrogen is obvious,and the contents of Xia Wan section is the highest.The pollution trends of ammonia-nitrogen is lightening through the pollution control.Survey results showed that the industrial pollution is heavier than livestock and non-point source pollution.But untreated sewage has become the most important pollution.