组合型生态浮岛原位修复重污染水体

为解决某人工池塘水体环境污染的问题，采用组合型生态浮岛技术研究了其对该水体的治理效果。结果表明，组合型生态浮岛对此类水体有较好的处理效果，其中化学需氧量(COD)、氨氮(${rm{NH}}_{4}^{+}$-N)、总氮(TN)、总磷(TP)的去除率分别为62.95%、67.45%、51.99%、77.78%，均高于对照组及单一系统处理组。可见在该组合型生态浮岛中，黄花鸢尾的植物吸收、改良型火山石与微生物的协同作用对污染物的去除明显优于单一处理组。合理的植物-填料组合方式可提高污染物的降解效果，且投资小，环境效益好，又可达到一定的景观效果，适用于城镇水体尤其是居住区静态水体的景观治理。

Combined ecological floating island for in-situ remediation of heavily polluted water

In order to solve the problem of water environmental pollution in an artificial pond, the combined ecological floating island was used to study the control effect of the water body. Results showed that the combined ecological floating island had a good treatment performance on the waterbody, the removal efficiencies of chemical oxygen demand (COD), ammonia nitrogen (${rm{NH}}_4^{+} $-N), total nitrogen (TN) and total phosphorus (TP) were 62.95%, 67.45%, 51.99% and 87.96%, respectively, which were significantly higher than those of the contrast group and the single system treatment groups. The results also showed that in this combined ecological floating island, the plant absorption of iris pseudoacorus, and the synergistic effect between improved volcanic rocks and microorganisms on the removal of pollutants were significantly better than each single system treatment group. Reasonable combination of plant and filler can improve the degradation effect of pollutants, with small investment, good environmental benefits, and can also achieve a certain landscape effect. It is suitable for landscape control of urban water bodies, especially static water bodies in residential areas.