The treatment performance and nutrient removal of a garden land infiltration system receiving dairy farm wastewater

文献类型： 外文期刊

第一作者： Duan, Jingjing

作者： Duan, Jingjing;Yang, Linzhang;Duan, Jingjing;Geng, Chenguang;Li, Xun;Duan, Zengqiang;Yang, Linzhang

作者机构：

关键词： Garden land infiltration system;Ecological treatment;Subsurface drainage;Livestock wastewater;Ryegrass

期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）

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收录情况： SCI

摘要： Livestock wastewater is a major source of agricultural non-point pollution. Land treatment system is appropriate for livestock sewage treatment due to its low construction cost and high treatment performance. In this study, a garden land infiltration system (GLIS) was established to treat dairy farm wastewater. Our main concern was nutrient removal and plant uptake when the system is in operation. The removal rates in the outflow water of suspended solids (SS), NH4+-N, total N (TN), total P (TP), chemical oxygen demand (COD), and total organic carbon (TOC) were 86.1%, 78.0%, 78.2%, 94.6%, 76.8%, and 74.6%, respectively. Approximately 79.4-81.6 kg/ha of nitrogen and 9.1-13.1 kg/ha of phosphorus were removed from the system by ryegrass harvesting, which accounted for 14.5-14.9% and 17.0-24.6% of the TN and TP in the effluent, respectively. These results demonstrate that the system has the advantage of high performance efficiency and has the potential for greater nutrient removal by plant uptake. Therefore, a GLIS can be considered as a viable alternative for dairy farm wastewater treatment in rural areas. (C) 2014 Elsevier B.V. All rights reserved.

分类号： S2

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