8种挺水植物对污染水体的净化效果比较

8种挺水植物对污染水体的净化效果比较

孙瑞莲^1,2，张建³，王文兴¹

1. 山东大学环境研究院，山东济南 250100； 2. 山东大学生命科学学院，山东济南 250100；
3. 山东大学环境科学与工程学院，山东济南 250100

收稿日期:2008-09-23 修回日期:1900-01-01 出版日期:2009-01-24 发布日期:2010-04-15
通讯作者: 孙瑞莲

Effect on polluted water purification by eight emergent plants

SUN Ruilian ^1,2， ZHANG Jian ³， WANG Wenxing ¹

1. Environment Research Institute, Shandong University, Jinan 250100, Shandong, China;
2. College of Life Science, Shandong University, Jinan 250100, Shandong, China;
3. College of Environmental Sciences and Engineering, Shandong University, Jinan 250100, Shandong, China

Received:2008-09-23 Revised:1900-01-01 Online:2009-01-24 Published:2010-04-15
Contact: SUN Ruilian

摘要/Abstract

摘要： 通过室外盆栽实验，研究了8种挺水植物在不同水力停留时间对污染水体的净化效果。结果表明各实验植物对COD、NH+4N、TN和TP的去除率随水力停留时间的延长而增加。水力停留时间为5?d时，除三棱草（Sparganium stenophyllum Maxim.）外，其它植物对COD均有明显的去除效果，其中，菖蒲（Acorus calamus L.）、水葱（Scirpus validus Vahl.）、宽叶香蒲（Typha latifolia L.）及黄花鸢尾（Iris wilsonii C. H. Wright）去除COD的效果较好，去除率达到90%左右。水力停留时间为7?d时，与无植物空白相比，各植物其NH+4N和TN去除率分别提高15.0%～41.8%和6.7%～25.1%，其中宽叶香蒲、茭白和黄花鸢尾对NH+4N和TN的去除性能尤为突出。8种植物中，茭白（Zizania latifolia Turcz.）和宽叶香蒲TP去除性能较好，其TP去除率分别提高10.8%和11.2%，其余6种植物的TP去除率与对照之间均无显著差异。综合分析，宽叶香蒲、茭白和黄花鸢尾可作为南四湖人工湿地备选植物。

关键词: 污染水体, 净化, 人工湿地, 挺水植物

Abstract: Potculture experiments were conducted to study the effects of eight emergent plants on purifying polluted water under different hydraulic retention times. Results showed that the purifying effects on pollutants were different among eight emergent plants and removal efficiency increased with hydraulic retention time. All plants had significant improvement for COD removal except Sparganium stenophyllum Maxim, when hydraulic retention time was 5 days. The COD removal efficiencies of Acorus calamus L., Scirpus validus Vahl, Typha latifolia L. and Iris wilsonii C. H. Wright were all about 90%, which were higher than those of the other plants. When the hydraulic retention time was 7 days, the removal efficiencies of eight plants for NH+4N and TN increased by 15.0%～41.8% and 6.7%～25.1% respectively as compared with the control. Iris wilsonii C. H. Wright, Zizania latifolia Turcz. and Typha latifolia L. showed excellent removal capacities of NH+4N and TN. TP removal efficiencies by Zizania latifolia Turcz. and Typha latifolia L. were significantly higher than that of control, the increased removal efficiencies for TP were 10.8% and 11.2% respectively. These results indicated that Iris wilsonii C. H. Wright, Zizania latifolia Turcz. and Typha latifolia L. could be selected for constructing wetland hydrophytes in Nansi Lake.

Key words: constructed wetland, emergent plants, polluted water, purification

中图分类号:

X703

孙瑞莲1,2 ，张建3 ，王文兴1 . 8种挺水植物对污染水体的净化效果比较[J]. J4, 2009, 44(1): 12-16 .

SUN Ruilian ^1,2， ZHANG Jian ³， WANG Wenxing ¹. Effect on polluted water purification by eight emergent plants[J]. J4, 2009, 44(1): 12-16 .

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