Performance of hybrid vertical up- and downflow subsurface flow constructed wetlands in treating synthetic high-strength wastewater

被引：9
|
作者：
Zhao, Yong-Jun [1 ,4 ]
Cheng, Pu [2 ]
Pei, Xi [3 ]
Zhang, Hui [2 ]
Yan, Cheng [1 ]
Wang, Shou-Bing [1 ]
机构：
[1] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China
[2] Zhengzhou Coll Anim Husb Engn, Dept Anim Husb Engn, Zhengzhou 450011, Peoples R China
[3] Inner Mongolia Agr Univ, Coll Forestry, Hohhot 010018, Peoples R China
[4] Jiaxing Univ, Coll Biol Chem Sci & Engn, Jiaxing 314001, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2013年 / 20卷 / 07期
关键词：
Chemical oxygen demand removal; Total nitrogen removal; Total phosphorus removal; Seasonal variation; Vertical upflow; Vertical downflow; PHOSPHORUS; REMOVAL;
D O I：
10.1007/s11356-013-1467-6
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The performance and temporal variation of hybrid vertical-subsurface flow constructed wetlands (VFCWs) in response to two-stage combinations of vertical upflow (VUF) and vertical downflow (VDF) were analyzed in this research. The results of high carbon (C) treatment and high nitrogen (N) treatment were similar. The Lythrum salicaria treatment showed higher removal efficiency than CWs planted with Acorus calamus. Under high C- and N-loading treatments, the optimum two-stage combination was VDF-VUF VFCWs planted with A. calamus. Furthermore, the highest nutrient removal efficiencies were achieved in late summer (July and August) and early autumn (September). The chemical oxygen demand and total nitrogen removal efficiencies were significantly affected (P < 0.05) by season, system, and wetland plant.
引用
收藏
页码：4886 / 4894
页数：9
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