Phytoremediation of Three Herbaceous Plants to Remove Metals from Urban Runoff

被引：7
|
作者：
Liu, Hongwei [1 ]
Wang, He [2 ]
Gao, Weifeng [1 ]
Liang, Hong [3 ]
Gao, Dawen [3 ,4 ]
机构：
[1] Northeast Forestry Univ, Sch Forestry, Harbin 150040, Heilongjiang, Peoples R China
[2] Northeast Forestry Univ, Coll Wildlife Resource, Harbin 150040, Heilongjiang, Peoples R China
[3] Harbin Inst Technol, Sch Environm, Harbin 150090, Heilongjiang, Peoples R China
[4] Harbin Inst Technol, State Key Lab Urban Water Resource & Water Enviro, Harbin 150090, Heilongjiang, Peoples R China
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2019年 / 103卷 / 02期
基金：
国家重点研发计划;
关键词：
Copper; Lead; Cadmium; Riparian buffer system; HEAVY-METALS; RISK-ASSESSMENT; ACCUMULATION; LEAD; CADMIUM; PHYTOEXTRACTION; TOLERANCE; RESPONSES; SEDIMENT; COPPER;
D O I：
10.1007/s00128-019-02677-z
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Phytoremediation experiments were carried out to assess the ability of different herbaceous buffer strips to absorb metals. Results revealed the Medicago sativa buffer strip had the best removal capacity for copper, lead, and cadmium in the runoff and seepage flow. Copper and lead content in M. sativa were significantly higher than in Lolium perenne and Poa pratensis (p<0.05). Cadmium content in P. pratensis was significantly higher than in L. perenne and M. sativa(p<0.05). Total accumulation of copper and lead in M. sativa buffer strips was 13.45mgkg(-1) and 1.01mgkg(-1), respectively. Total cadmium accumulation was approximately 0.50mgkg(-1) in both M. sativa and P. pratensis. Overall, results indicated that using M. sativa in the buffer strips was optimal for the remediation of copper, lead, and cadmium in sewage water.
引用
收藏
页码：336 / 341
页数：6
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