Application of plant carbon source for denitrification by constructed wetland and bioreactor: review of recent development

被引：108
作者：
Hang, Qianyu [1 ,2 ]
Wang, Haiyan [1 ,2 ]
Chu, Zhaosheng [1 ,3 ]
Ye, Bibi [1 ,3 ]
Li, Chunmei [1 ,4 ]
Hou, Zeying [1 ,3 ]
机构：
[1] Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, 8 Da Yang Fang, Beijing 100012, Peoples R China
[2] Chinese Res Inst Environm Sci, Res Ctr Water Pollut Control Technol, 8 Da Yang Fang, Beijing 100012, Peoples R China
[3] Chinese Res Inst Environm Sci, Res Ctr Lake Ecoenvironm, 8 Da Yang Fang, Beijing 100012, Peoples R China
[4] Lanzhou Univ, Lanzhou 730000, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2016年 / 23卷 / 09期
关键词：
Plant carbon source; Denitrification; Nitrate removal; Constructed wetland; Bioreactor; WASTE-WATER TREATMENT; NITRATE REMOVAL; SUBSURFACE-FLOW; BIOLOGICAL DENITRIFICATION; LITTER DECOMPOSITION; GLYCYRRHIZA-GLABRA; NITROGEN REMOVAL; AQUATIC PLANTS; PERFORMANCE; BIOMASS;
D O I：
10.1007/s11356-016-6324-y
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Water quality standard for nitrate becomes more and more strict, and the plant carbon source is widely used for denitrification by constructed wetland (CW) and bioreactor. However, the nitrate removal efficiency by different types of plant carbon source are not evaluated comprehensively. Denitrification performance of different plant carbon sources, and the influence of dosing method and pretreatment are thoroughly reviewed in this paper, which aims to investigate the accurate utilization of plant carbon source for nitrogen (as nitrate) removal. It is concluded that plant carbon source addition for all types of CWs and bioreactors can improve the nitrate removal efficiency to some extent, and the dosing method of plant carbon source for denitrification should be further studied and optimized in the future. The popular carbon sources for CW and bioreactor denitrification enhancement are woodchip, chopped macrophytes, crop plants, macrophytes litters, etc. The recommended optimum C:N ratios for CW and bioreactor are 4.0:5.0 and 1.8:3.0, respectively. The physical and biological pretreatments are selected to supply organic carbon for long-term denitrification.
引用
收藏
页码：8260 / 8274
页数：15
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