The intensified first level treatment will enhance the removal rate of the pollutants in urban sewage water.
强化一级处理，可以提高城市污水中污染物的去除率。
Research on pollutants removal efficiency of the high rate denitrifier applied for constructed wetland with simulating undercurrent was conducted.
研究高效除氮菌的加入对模拟潜流人工湿地除污效果的影响。
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