抚仙湖窑泥沟人工湿地的除磷效果研究

应用生态学报 ›› 2005, Vol. 16 ›› Issue (10): 1913-1917.

抚仙湖窑泥沟人工湿地的除磷效果研究

陈源高^1,2, 吴献花³, 李文朝², 孔志明¹

1. 南京大学环境学院污染控制与资源化研究国家重点实验室, 南京 210093;
2. 中国科学院南京地理与湖泊研究所, 南京 210008;
3. 云南省玉溪师范学院, 玉溪 653100

收稿日期:2004-06-17 修回日期:2004-09-10 出版日期:2005-10-15 发布日期:2005-10-15
通讯作者: 孔志明
基金资助:
国家"863"计划项目(2002AA601013)和云南省玉溪市污染治理资助项目.

Phosphorus removal efficiency of Yaonigou constructed wetland on Fuxian lakeshore

CHEN Yuangao^1,2, WU Xianhua³, LI Wenchao², KONG Zhiming ¹

1. State Key Laboratory of Pollution Control and Resource Reuse, Environmental School of Nanjing University, Nanjing 210093, China;
2. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
3. Yuxi Normal College, Yuxi 653100, China

Received:2004-06-17 Revised:2004-09-10 Online:2005-10-15 Published:2005-10-15

摘要/Abstract

摘要： 为了减缓和控制抚仙湖局部湖湾水体富营养化趋势,在抚仙湖北岸建设了净化面积1 hm²的人工湿地.综合利用生物氧化塘、水平潜流人工湿地和表面流人工湿地治理技术,对入湖河道窑泥沟污水中磷的去除效果进行了试验研究.结果表明,该人工湿地系统对磷具有较强的去除能力.总磷去除率在57.7%～81.10%之间,平均去除率为54.9%.单位面积磷滞留量平均为26 mg·m^-2·d^-1,其中,湿地植物同化作用磷滞留量为26.1 mg·m^-2·d^-1,约占磷滞留总量的10%,大部分磷去除是通过基质吸附和沉降作用,但主要湿地植物水芹的季节变化对相应功能区的除磷效果会产生一定影响.试验期间,各功能区单位面积磷滞留量依次为水平潜流人工湿地＞生物氧化塘＞沉淀池＞表面流人工湿地.

关键词: 抚仙湖, 人工湿地, 除磷效果

Abstract: To mitigate and control the eutrophication of the waters in Fuxian Lake bay,1 hm² Yaonigou constructed wetland was built on the north Fuxian lakeshore,and the P removal of the wastewater from Yaonigou River was investigated by the techniques of precipitation pond,oxidation pond,and subsurface-and surface flow constructed wetland.The results demonstrated that this constructed wetland had a very strong capacity (7.8%～81.1%) of total phosphorus (TP) removal.The average removal rate of TP was 54.9%,and the TP retention in the constructed wetland was 265mg·m^-2·d^-1,of which,plant assimilation was 26.1mg·m^-2·d^-1,about 10% of the total.The TP removal was mainly through adsorption and sedimentation,but the seasonal growth dynamics of main plant Oenanthe javanica could have a definite effect on the efficiency of TP removal.During the examination,the TP retention capacity was in order of subsurface flow constructed wetland>oxidation pond>precipitation pond>surface flow constructed wetland.

Key words: Fuxian Lake, Constructed wetland, Phosphorous removal efficiency

中图分类号:

X171.4

陈源高, 吴献花, 李文朝, 孔志明. 抚仙湖窑泥沟人工湿地的除磷效果研究[J]. 应用生态学报, 2005, 16(10): 1913-1917.

CHEN Yuangao, WU Xianhua, LI Wenchao, KONG Zhiming . Phosphorus removal efficiency of Yaonigou constructed wetland on Fuxian lakeshore[J]. Chinese Journal of Applied Ecology, 2005, 16(10): 1913-1917.

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