Study on the distribution of heavy metals in cattail in constructed wetlands

doi:10.14088/j.cnki.issn0439-8114.2021.08.029

Abstract

Abstract: To explore the distribution of heavy metals in the cattails, the Zaohe constructed wetland and the Zaohe river constructed wetland demonstration base were selected as the research site. The cattails in the two artificial wetlands were taken as the research object, and the concentrations of copper and chromium in different parts of cattails were determined. The results showed that the cattail can absorb Cu well, and the content of heavy metals in cattail roots is the most, followed by the stem and leaves; The content of Cu is the highest in cattail, and the transfer coefficient of Cu in cattail is large, so the heavy metal in plants can be removed through seasonal harvesting; The cattails in two constructed wetlands can better remove the heavy metal Cu.

Key words: constructed wetlands, heavy metals, cattail, distribution

CLC Number:

X703.1

GE Guang-huan, KOU Kun, YU Su-hui, WANG Yang, WEN Zhi-liang, LI Xiang. Study on the distribution of heavy metals in cattail in constructed wetlands[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(8): 141-144.

References

[1] 夏汉平. 人工湿地处理污水的机理与效率[J].生态学杂志,2002,21(4):52-59.
[2] 周海兰. 人工湿地在重金属废水处理中的应用[J].环境科学与管理,2007,32(9):89-91.
[3] 董志成,鲍征宇,谢淑云,等.湿地芦苇对有毒重金属元素的抗性及吸收和积累[J].地质科技情报, 2008, 27(1):80-84.
[4] SCHOLES L,SHUTES R B E,REVITT D M,et al. The treatment of metals in urban runoff by constructed wetlands[J].The science of the total environment,1998,214:211-219.
[5] GREENWAY M,WOOLLEY A.Constructed wetlands in Queensland:Performance efficiency and nutrient bioaccumulation[J].Ecol Eng, 1999,12(1-2):39-55.
[6] MUNGUR A S,SHUTES R B E,REVITT D M,et al. An assessment of metal removal by a laboratory scale wetland[J].Wat Sci Tech,1997,35(5):125-133.
[7] HADAD H R,MUFARREGE M M,PINCIROLI M,et al.Morphological response of Typha domingensis to an industrial effluent containing heavy metals in a constructed wetland[J]. Arch Environ Contam Toxicol, 2010, 58:666-675.
[8] 董雯,李怀恩,李家科,等.城市重污染河流水质特征分析——以皂河为例[J].水力发电学报,2012,31(4):72-77.
[9] 李庆华. 人工湿地植物重金属分布规律及富集性研究[D].西安:长安大学,2014.
[10] LESAGE E,ROUSSEAU D P L,MEERS E,et al. Accumulation of metals in the sediment and reed biomass of a combined constructed wetland treating domestic wastewater[J]. Water air soil pollut, 2007,183:253-264.
[11] 阳承胜,蓝崇珏,束文圣.重金属在宽叶香蒲人工湿地系统中的分布与积累[J]. 水处理技术,2004,28(2):101-104.
[12] 曾清如,周细红,铁柏清,等. 铅锌矿自然扩散晕内重金属的污染特征及其防治技术[J].农村生态环境,1997,13(1):12-15.
[13] 江福英. 湿地植物对磷与重金属去除的根际效应及机理研究[D].杭州:浙江大学,2017.
[14] 郝玉娇,朱启红. 植物富集重金属的影响因素研究[J]. 重庆文理学院学报(自然科学版),2010,29(4):45-47.
[15] 孙庆业,刘付程.铜陵铜矿尾矿理化性质的变化对植被重建的影响[J].农村生态环境,1998,14(1):22-24,61.