不同湿地植物对污水中氮和磷的吸收动力学特性

›› 2011, Vol. 23 ›› Issue (1): 122-126.

不同湿地植物对污水中氮和磷的吸收动力学特性

洪春来1, 2,王卫平1,朱凤香1,陈晓旸1,薛智勇1,*,王润屹2

1 浙江省农业科学院环境资源与土壤肥料研究所,浙江杭州 310021;2 浙江省嘉兴市农业科学研究院,浙江嘉兴 314016

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-01-25 发布日期:2011-01-25

The uptake dynamic characteristics of N and P in polluted water by different wetland plants

HONG Chun-lai;;WANG Wei-ping;ZHU Feng-xiang;CHEN Xiao-yang;XUE Zhi-yong;*;WANG Run-yi

1Institute of Environment, Resources, Soil & Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;2 Institute of Jiaxing Agricultural Sciences, Jiaxing 314016, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-01-25 Published:2011-01-25

摘要/Abstract

摘要： 为比较不同湿地植物对富营养化水体中N,P的去除效应。研究了水葫芦、菖蒲、空心菜、金鱼藻等4种湿地植物对NO3-N,NH4-N及P的吸收动力学特征。结果表明,不同湿地植物对水体中N,P的吸收存在显著的差异,4种植物对NH4-N的最大吸收速率(Vmax)大小为水葫芦＞空心菜＞菖蒲＞金鱼藻,对NO3-N的最大吸收速率表现为水葫芦＞空心菜＞金鱼藻＞菖蒲；对P的最大吸收速率表现为水葫芦＞空心菜＞菖蒲＞金鱼藻；4种湿地植物对水体中氮磷吸收的表观米氏常数(Km),即亲和力均呈现出与最大吸收速率相反的趋势。

关键词: 湿地植物, 污水, 吸收动力学

Abstract: To compare the removal effects of N, P from eutrophication water by wetland plants. The uptake dynamics characteristics of NO3-N, NH4-N and P by four types of wetland (Water hyacinth, Acorus calamus, Ipomoea aquatica, Ceratophyllum demersum) were studied. The results showed that the four wetland plants showed significant difference in the water N, P uptake , and the maximum absorption rate of NH4-N showed as Water hyacinth> Ipomoea aquatica> Acorus calamus> Ceratophyllum demersum while the maximum absorption rate of NO3-N was Water hyacinth> Ipomoea aquatica> Ceratophyllum demersum> Acorus calamus. Meanwhile, the maximum absorption rate of P was Water hyacinth> Ipomoea aquatica > Acorus calamus> Ceratophyllum demersum. Furthermore, the affinity of nitrogen and phosphorus uptake rate of four wetland plants showed opposite trend with the absorption rate．

Key words: wetland plant, polluted water, uptake dynamic

洪春来;王卫平;朱凤香;陈晓旸;薛智勇;*;王润屹. 不同湿地植物对污水中氮和磷的吸收动力学特性[J]. , 2011, 23(1): 122-126.

HONG Chun-lai;WANG Wei-ping;ZHU Feng-xiang;CHEN Xiao-yang;XUE Zhi-yong;*;WANG Run-yi. The uptake dynamic characteristics of N and P in polluted water by different wetland plants [J]. , 2011, 23(1): 122-126.

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