Abstract 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% NH4+-N, 24.6% total nitrogen (TN) and 76.7% total phosphorus (TP) occurred simultaneously in the D-BVFCW; 56.4% NH4+-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.

中文翻译：

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两种水芹种植折流垂直流人工湿地脱氮除磷效果比较

摘要农村生活污水处理相关的环境问题日益严峻，社会也普遍关注。折流垂直流人工湿地（BVFCW）是净化废水的不错选择。本文以饮用水处理污泥-BVFCW（D-BVFCW）与陶粒-BVFCW（C-BVFCW）并行种植水芹（O. javanica）处理农村生活污水为研究对象，旨在比较脱氮除磷效果。在不同的 BVFCW 中。D-BVFCW 中同时去除了 23.9% NH4+-N、24.6% 总氮 (TN) 和 76.7% 总磷 (TP)；C-BVFCW 中分别有 56.4% NH4+-N、60.8% TN 和 55.2% TP。D-BVFCW 中的根和株高平均分别增加了 7.9 厘米和 8.3 厘米，C-BVFCW 中分别增加了 0.7 厘米和 1.1 厘米。结果表明，D-BVFCW和C-BVFCW对N和P的去除效果不同。D-BVFCW主要去除P，而C-BVFCW主要去除N。