常州市地表水中氨氮输移分析及对策建议

The Analysis and Countermeasures of Ammonia Nitrogen Transportation in Surface Water of Changzhou

目前常州市地表水中氨氮污染已成为最突出的问题。通过近2年来的监测和调查,参考有关资料和科研成果,估算出常州市地表水中年接纳氨氮总量为17998.0t/a,其中农田径流占32%,上游行政交界来水占30%,而城镇生活污水、农村生活污水、工业废水、城镇地表径流和规模化畜禽养殖等所占比重均不足13%。并据此提出了减轻地表水中氨氮污染的对策建议。

Currently ammonia nitrogen pollution in surface water has become the most predominant problem in Changzhou. It was estimated that surface water accepted 17 998.0 t/a ammonia nitrogen in Changzhou by two years of monitoring and investigation and relevant information and scientific research. By calculation,farmland runoff contributed 32% of ammonia nitrogen,while the upstream runoff contributed 30% and the urban domestic sewage,rural domestic sewage,industrial wastewater,urban runoff and large-scale livestock breeding accounted for less than 13%. Finally,countermeasures were proposed on how to reduce ammonia nitrogen in the surface water.