曝气–植物法修复天然小型湖泊实验研究

Experimental Study on Rehabilitation of Natural Lake Water by Aeration and Plants Combined Method

利用物理曝气和植物生态修复技术对秦皇岛市北戴河湿地公园的一个小型湖进行了修复治理。研究结果表明,经过150 d的联合修复,该湖水中的COD、氨氮浓度及浊度都有了大幅度的下降。其中COD降至23.00 mg/L以下,去除率达到50%以上;氨氮降至0.70 mg/L以下,去除率达67.50%;总磷降低至0.50 mg/L以下,去除率达到68.10%以上;浊度降至11.85 ntu,下降幅度达42.45%。

The minitype lake in Qinhuangdao beidaihe wetland park was remediated by physical method of aeration and phytoremediation. The results showed that most of COD (Chemical Oxygen Demand), TP (Total Phosphorus), ammonia nitrogen and turbidity in the lake water were removed after 150 days combined remediation. The values of COD, ammonia nitrogen, TP and turbidity were less than 23 mg/L, 0.7mg/L, 0.50 mg/Land 11.85 ntu, and the removal rates were 50%, 67.5%, 68.1% and 42.45%, respectively.