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

被引：0

作者：

Yong-Jun Zhao

Pu Cheng

Xi Pei

Hui Zhang

Cheng Yan

Shou-Bing Wang

机构：

[1] Fudan University,Department of Environmental Science and Engineering

[2] Zhengzhou College of Animal Husbandry Engineering,Department of Animal Husbandry Engineering

[3] Forestry College of Inner Mongolia Agricultural University,College of Biological, Chemical Science and Engineering

[4] Jiaxing University,undefined

来源：

Environmental Science and Pollution Research | 2013年 / 20卷

关键词：

Chemical oxygen demand removal; Total nitrogen removal; Total phosphorus removal; Seasonal variation; Vertical upflow; Vertical downflow;

D O I：

暂无

中图分类号：

学科分类号：

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

页码：4886 / 4894

页数：8

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