Purification Effect of Self-aeration Constructed Wetlands on COD

被引：1
|
作者：
Xia Hongxia [1 ]
Zhu Qihong [1 ]
机构：
[1] Chongqing Univ Arts & Sci, Key Lab Water Environm Restorat, Chongqing, Peoples R China
来源：
MATERIAL DESIGN, PROCESSING AND APPLICATIONS, PARTS 1-4 | 2013年 / 690-693卷
关键词：
artificial aeration; self-aeration; domestic animal breeding wastewater;
D O I：
10.4028/www.scientific.net/AMR.690-693.1122
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Aimed at the issue of dissolved oxygen concentration insufficiency in regular constructed wetlands, shale hollow bricks are adopted to build self-aeration constructed wetlands, to increase the oxygen supply capacity in the system. The experimental result indicates that DO concentration in self-aeration constructed wetlands is 0.1mg/L higher than that in artificially intensified aeration wetlands, and the removal rate for COD reaches over 85%,which is about 2% higher than that of artificial aeration wetlands. This shows that the built self-aeration constructed wetland system can increase oxygen supply capacity in the wetland, and increase the purification efficiency of the wetland system for COD in wastewater.
引用
收藏
页码：1122 / 1126
页数：5
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