EFFECTS OF VARIOUS PLANTS ON TREATMENT EFFICIENCY OF HORIZONTAL SUBSURFACE FLOW CONSTRUCTED WETLANDS BASED ON THE HYDRAULIC RETENTION TIME

被引：0
|
作者：
Aminsharei, Farham [1 ]
Borghei, Seyed Mehdi [2 ]
Arjomandi, Reza [1 ]
Nouri, Jafar [1 ]
Pendashteh, Alireza [3 ]
机构：
[1] Islamic Azad Univ, Sci & Res Branch, Dept Environm Management, Tehran, Iran
[2] Sharif Univ Technol, Biochem & Bioenvironm Res Ctr, Tehran, Iran
[3] Iranian Acad Ctr Educ Culture & Res ACECR, Environm Res Inst, Rasht, Iran
来源：
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL | 2019年 / 18卷 / 06期
关键词：
Lactuca sativa; Medicago sativa; Phragmites australis; sub-surface flow constructed wetland; wastewater treatment; WASTE-WATER TREATMENT; POLLUTANT REMOVAL EFFICIENCY; REED PHRAGMITES-AUSTRALIS; HEAVY-METALS; PHYTOREMEDIATION; LETTUCE; COD; L;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study the effectiveness of Lactuca sativa, Medicago sativa and Phragmites australis for the treatment of domestic wastewater in horizontal subsurface flow was investigated. The removal efficiency of chemical oxygen demand (COD), total nitrogen (TKN), total phosphorus (TP), and total suspended solids (TSS) was measured. The experiment was conducted in two different retention time (5 and 7 days) in three seasons (spring, summer and fall). The removal efficiency was increased as the retention time increased. Based on the results, M. sativa had the highest removal efficiency of COD (90.7%), TSS (87.8%) and TKN (59%) in 7 days HRT. Meanwhile, P. australis removed (67%) TP during 7 days HRT from wastewater. Seasonal changes showed different effects on removal rate and L. sativa showed lower removal efficiency in compare to other two plants.
引用
收藏
页码：1201 / 1206
页数：6
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