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在200m2的中试性人工湿地上进行了处理铁矿炸药车间排放的含氮污水试验。试验分A、B两区各100m2．A区种植芦苇．B区种植木本植物。种植后第二年进行污水处理。对主要指标的去除率分别为，SSA区为22．4％～69．6％，B区为8．0％～74．3％；CODA区为28％～70．3％，B区为42．0％～85．7％；NH3－NA区为13．7％～99．2％，B区为15．5％～98．4％；总氮A、B两区均为40．1％～67．5％；总磷A区为51．8％～96．2％，B区为57．4％～85．3％．
Nitrogen-containing wastewater discharged from the iron ore explosive workshop was tested on 200m2 pilot-scale constructed wetlands. Test points A, B two 100m2 each. A area planted reed. B area planted woody plants. The second year after planting sewage treatment. The removal rates of the main indicators were respectively 22.4% -69.6% in SSA area, 8.0% -74.3% in B area, 28% -70.3% in CODA area and 42 .0% ~ 85.7%; NH3-NA was 13.7% ~ 99.2%, B was 15.5% ~ 98.4%; the total nitrogen A and B were 40.1% ~ 67.5%, total phosphorus A area 51.8% ~ 96.2%, and B area 57.4% ~ 85.3%.