Evaluation of Vertical-Flow Constructed Wetlands for Swine Wastewater Treatment

被引：0
|
作者：
Antover Panazzolo Sarmento
Alisson Carraro Borges
Antonio Teixeira Matos
机构：
[1] Federal University of Viçosa,Department of Agricultural Engineering
[2] Federal University of Goiás,Department of Civil Engineering
来源：
Water, Air, & Soil Pollution | 2012年 / 223卷
关键词：
Agro-industry effluents; Constructed wetlands; Nutrients; Macrophytes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, the role of Cyperus sp. was evaluated for removal of pollutants from swine wastewater. Vertical-flow pilot scale constructed wetlands (CWs) operating with a hydraulic retention time (HRT) of 72 h were monitored in a greenhouse, located in Viçosa, Brazil. Significant differences were observed for the following parameters: Kjeldahl nitrogen, total phosphorus, alkalinity and electric conductivity, with averages removals of 37.5 and 28.5%, 55.9 and 44.4%, 30.2 and 25.6 and 26.1% and 22.9% (for planted and unplanted CWs, respectively). The rate of dry matter yield from Cyperus sp. was 7.5 g m−2 day−1, and the nutrient uptake capacities were 21.8, 2.1, 14.0 and 0.9 g m−2 of N, P, K and Na, respectively. Evapotranspiration (2.7 mm day−1) was statistically higher in the planted CWs. Plants in the CWs are important for achieving high nutrient removal.
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页码：1065 / 1071
页数：6
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