| The three-month ecological restoration treatment on the sewage of TN more than 40mg/L by the five aquatic plants of
water hyacinth, yellow water dragon, alligator grass, water turtle and duckweed. The results indicate that the average removal of TN is more than 60%, the highest removal with 86% is water hyacinth and lowest with 58% is alligator grass. The removal of the other forms of nitrogen in Different aquatic plants has their own characteristics. The highest and lowest of ammonia nitrogen removal rate are water hyacinth 88% and yellow water dragon 14%, duckweed and water hyacinth have more than 85% nitrate removal, and alligator grass is 23%. |
