School of Ecology and Environment, Zhengzhou University, Zhengzhou, Henan, 450000, China E-mail:
College of Earth and Environment Sciences, Lanzhou University, Lanzhou, Gansu, 730000, China.
Water Sci Technol. 2020 May;81(9):2023-2032. doi: 10.2166/wst.2020.265.
The environmental problems related to rural domestic sewage treatment are becoming increasingly serious, and society is also concerned about them. A baffled vertical flow constructed wetland (BVFCW) is a good choice for cleaning wastewater. Herein, a drinking-water treatment sludge-BVFCW (D-BVFCW) parallel with ceramsite-BVFCW (C-BVFCW) planted with Oenanthe javanica (O. javanica) to treat rural domestic sewage was investigated, aiming to compare nitrogen and phosphorus removal efficiency in different BVFCWs. A removal of 23.9% NH -N, 24.6% total nitrogen (TN) and 76.7% total phosphorus (TP) occurred simultaneously in the D-BVFCW; 56.4% NH -N, 60.8% TN and 55.2% TP respectively in the C-BVFCW. The root and plant height increased by an average of 7.9 cm and 8.3 cm, respectively, in the D-BVFCW, and by 0.7 cm and 1.1 cm, respectively, in the C-BVFCW. These results demonstrate that the D-BVFCW and C-BVFCW have different effects on the removal of N and P. The D-BVFCW mainly removed P, while C-BVFCW mainly removed N.
农村生活污水治理中存在的环境问题日益严重，受到社会的广泛关注。 baffled vertical flow constructed wetland (BVFCW) 是一种很好的废水净化选择。本文采用载有 Oenanthe javanica（O. javanica）的饮用水处理污泥-BVFCW（D-BVFCW）与陶粒-BVFCW（C-BVFCW）平行处理农村生活污水，旨在比较不同 BVFCW 中的氮磷去除效率。D-BVFCW 中 NH -N、总氮（TN）和总磷（TP）的去除率分别为 23.9%、24.6%和 76.7%；C-BVFCW 中分别为 56.4%、60.8%和 55.2%。D-BVFCW 的根和植物高度平均分别增加了 7.9 cm 和 8.3 cm，C-BVFCW 分别增加了 0.7 cm 和 1.1 cm。这些结果表明，D-BVFCW 和 C-BVFCW 对 N 和 P 的去除有不同的效果。D-BVFCW 主要去除 P，而 C-BVFCW 主要去除 N。
