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中文摘要：
以宁波市前塘河水作为实验水体,采用不同水生植物及组合、生态浮岛复合技术净化水中污染物。经过14d的水培实验发现,沉水植物COD去除能力高于浮水植物和挺水植物;水生植物组合对COD的去除率相对较低,但去除率仍不低于79.9%。水生植物组合对氨氮的去除效果好于单一种类植物。沉水植物去除总磷的效果好于浮水植物与挺水植物,不同水生植物及组合的总磷去除率均大于44.0%。生态浮岛复合技术对废水中污染物的去除能力较强,实验10d时COD、氨氮、总磷去除率分别为97.1%、100.0%、73.8%。由此可见,水生植物和微生物的协同净化作用使生态浮岛复合技术对污染物的降解效果非常显著。
英文摘要：
The purification of water sample from Qiantang River in Ningbo by different aquatic plants,combination of different aquatic plants and compound technology of ecological floating island was studied in this experiment.After 14 days of water culture experiment,the results showed that COD removal efficiency of submerged plants was higher than that of floating plants and emerged plants.COD removal efficiency of combined aquatic plants decreased,but was not less than 79.9%.Removal efficiency of ammonia nitrogen by combined aquatic plants was higher than that of single-species plants.TP removal efficiency of submerged plants was better than that of floating plants and emerged plants.TP removal efficiency of different aquatic plants and combinations of aquatic plants was higher than44.0%.COD,ammonia nitrogen and TP removal ability of ecological floating island compound technology was better than single-species plants and combined aquatic plants,and the removal efficiencies were 97.1%,100.0% and 73.8%respectively after 10 days of experiment.The results showed that the synergistic effects of aquatic plants and microorganisms on the degradation of pollutants were very significant.
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