Mass Balance Study on Phosphorus Removal in Constructed Wetland Microcosms Treating Polluted River Water

被引：73

作者：

Wu, Haiming ^{[1
]}

Zhang, Jian ^{[1
]}

Li, Cong ^{[1
]}

Fan, Jinlin ^{[1
]}

Zou, Yina ^{[1
]}

机构：

[1] Shandong Univ, Sch Environm Sci & Engn, Shandong Key Lab Water Pollut Control & Resource, Jinan 250100, Shandong, Peoples R China

来源：

CLEAN-SOIL AIR WATER | 2013年 / 41卷 / 09期

关键词：

Hydraulic retention time; Macrobiota; Nutrient waste; Temperature; Vegetation; WASTE-WATER; NUTRIENTS; RETENTION; NITROGEN;

D O I：

10.1002/clen.201200408

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A number of studies have showed that the mass removal rates of phosphorus (P) in different constructed wetlands (CWs) varied significantly, and it is essential to quantify the contributions of major P removal processes in order to improve system design. The objective of this study was to investigate the effects of vegetation, hydraulic retention time (HRT), and water temperature on P removal from polluted river water and to quantify the contributions of different P removal pathways in surface CWs. Results showed that the average total P removal rates ranged between 2.69 and 20.84mg/(m(2)day) in different seasons and were influenced significantly by vegetation, HRT, and water temperature. According to the mass balance approach, plant uptake removed 4.81-22.33% of P input, while media storage contributed 36.16-49.66%. Other P removal processes such as microbiota uptake removed around 0.26-4.13%. Media storage and plant uptake were identified as the main P removal processes in surface CWs treating polluted river water. This illustrated the importance of selecting media and plants in CWs for future practical application.

引用

页码：844 / 850

页数：7

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