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水生植物对河湖中回用的再生水富营养化的控制效应
引用本文:路 璐,杨培岭,李云开,许廷武,刘培斌,郎 琪,李鹏翔,方唐福.水生植物对河湖中回用的再生水富营养化的控制效应[J].农业工程学报,2011,27(14):196-203.
作者姓名:路 璐  杨培岭  李云开  许廷武  刘培斌  郎 琪  李鹏翔  方唐福
作者单位:1.中国农业大学水利与土木工程学院,北京 100083; 2.哈尔滨市水利规划设计研究院有限公司,哈尔滨 150076;1.中国农业大学水利与土木工程学院,北京 100083;1.中国农业大学水利与土木工程学院,北京 100083;3.中国科学院生态环境研究中心城市与区域生态国家重点试验室,北京 100085;4.中国农业大学国际学院,北京 100083;5.北京市水利规划设计研究院,北京 100048;1.中国农业大学水利与土木工程学院,北京 100083;1.中国农业大学水利与土木工程学院,北京 100083;1.中国农业大学水利与土木工程学院,北京 100083
基金项目:北京市科技计划项目(D090409004009004);水利部公益性行业科研专项经费项目(201001067)
摘    要:再生水中含有大量的N、P等营养物质,使得回用区水环境面临了一定的污染风险,水生植物有望成为一种原位净化再生水水质的可行方法。该文利用人工模拟自然的方法,选择目前北京地区最为常用的挺水植物水葱(Scripus validus)、香蒲(Typha angustifolia),浮水植物水葫芦(water hyacinth)以及沉水植物菹草(Potamogeton Crispus L),系统研究了这4种水生植物及其配置模式对再生水中TN、TP的净化效应,研究结果表明:水生植物对上覆水体总氮的净化最优时间为第2换水周期培养阶段为60~90 d),而总磷为第3换水周期(培养阶段90~120 d);对于间隙水、沉积物中氮磷的去除,以挺水植物配置单植方式效果突出;较沉浮水植物而言,挺水植物体本身对氮磷具有更好的积累效果,并以混植方式居优,景观效果良好,通过对其进行定时的收割,可将污染物彻底的移除水体。本研究可为北京市地区人工湿地的构建、净化再生水的植物配置模式选择,提供参考。

关 键 词:水污染,植物,氮,磷,水生植物配置,再生水
收稿时间:2011/8/22 0:00:00
修稿时间:2011/12/6 0:00:00

Control effects of aquatic plants on eutrophication in reclaimed water river-lake
Lu Lu,Yang Peiling,Li Yunkai,Xu Tingwu,Liu Peibin,Lang Qi,LiPengxiang and Fang Tangfu.Control effects of aquatic plants on eutrophication in reclaimed water river-lake[J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(14):196-203.
Authors:Lu Lu  Yang Peiling  Li Yunkai  Xu Tingwu  Liu Peibin  Lang Qi  LiPengxiang and Fang Tangfu
Abstract:Reclaimed water contains lots of nitrogen and phosphorus, which made the environment of water reuse district face a certain pollution risk. Aquatic plants are accepted to become a feasible method for purifying reclaimed water in situ. Based on this, four aquatic plants, Scripus validus, Typha angustifolia (emergent aquatic plants), Water hyacinth (submersed plant) and Potamogeton Crispus L (submerged plant) were chosen for purification effect of TN and TP in reclaimed water with simulated experiments, which are commonly planted in Beijing at present. The results showed that: The optimal time for TN purified in overlying water was concentrated in the second period (incubation time 60-90 d), while TP in the third (incubation time 90-120 d). The emergent aquatic plants had the best removal efficiency for TN and TP in interstitial water and sediment. The emergent aquatic plant itself had better accumulation effect of TN and TP with nice landscape effect, particularly for the compound type. And it could gain the high removal efficiency for the pollutants with harvest timely. The research can provide a reference for constructing artificial wetlands and choosing the aquatic plants in reclaimed water reusing for ecological water in city rivers and lakes.
Keywords:water pollution  plants  nitrogen  phosphorus  the configuration mode of aquatic plant  reclaimed water
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