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组合型生态浮床对水体修复及植物氮磷吸收能力研究

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郑立国, 杨仁斌, 王海萍, 宋建军. 组合型生态浮床对水体修复及植物氮磷吸收能力研究[J]. 环境工程学报, 2013, 7(6): 2153-2159.
引用本文: 郑立国, 杨仁斌, 王海萍, 宋建军. 组合型生态浮床对水体修复及植物氮磷吸收能力研究[J]. 环境工程学报, 2013, 7(6): 2153-2159.
shu
Zheng Liguo, Yang Renbin, Wang Haiping, Song Jianjun. Study on water remediation and uptake ability of nitrogen and phosphorus by plants using combined ecological floating bed[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2153-2159.
Citation: Zheng Liguo, Yang Renbin, Wang Haiping, Song Jianjun. Study on water remediation and uptake ability of nitrogen and phosphorus by plants using combined ecological floating bed[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2153-2159.
shu

组合型生态浮床对水体修复及植物氮磷吸收能力研究

  • 1.

    湖南农业大学农业环境保护研究所, 长沙 410128

  • 2.

    华中科技大学环境科学 与工程学院, 武汉 430074

  • 3.

    湖南农业大学园艺园林学院, 长沙 410128

  • 基金项目:

    国家科技部重大水专项的子项(2008ZX07211-001)

  • 中图分类号: X524

Study on water remediation and uptake ability of nitrogen and phosphorus by plants using combined ecological floating bed

  • 1.

    Institute of Agri-Environmental Protection, Hunan Agricultural University, Changsha 410128, China

  • 2.

    School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

  • 3.

    College of Horticulture and Garden, Hunan Agricultural University, Changsha 410128, China

  • Fund Project:

  • 摘要: 在天鹅湖水体中构建以水生植物和陆生喜水植物为实验植物,浮法控制器、水循环增氧系统和造浪-输送系统相集合的组合型生态浮床。在中试研究中,研究了其对天鹅湖上覆水和沉积物中营养物质的修复动态。结果表明,经过4个多月的组合型生态浮床生态修复,天鹅湖上覆水中TN、NH4+-N和TP的去除率分别达到61.92%、63.09%和80.0%,沉积物中TN和NH4+-N含量的去除率分别达到23.79%和37.04%,TP含量升高了43.71%;组合型生态浮床的5种浮床植物的氮磷累积量差异显著,再力花和美人蕉对氮磷的吸收速率显著高于菖蒲、薄荷和水稻,再力花和美人蕉对氮的吸收速率达到12.19 g/(m2·d)和7.90 g/(m2·d),对磷吸收分别达到0.81 g/(m2·d)和0.99 g/(m2·d)。美人蕉和再力花对氮磷的吸收量均是茎叶>根系,其中美人蕉茎叶氮、磷吸收量分别为根系的2.73倍和1.93倍,再力花分别为1.83倍和1.19倍,通过浮床系统植物水上部分的收割可以去除水体中的氮磷。
    Abstract: A new type of combined ecological floating bed (CEFD) was developed in our study, which combined aquatic plants, hydrophilous plants and ancillary equipments that include floating controllers, water-cycling aerator systems and wave-making systems. The pilot study on remediation of the overlying water and the sediment of Swan Lake was carried out. Results showed that the removal efficiencies of TN, NH4+-N and TP were 61.92%, 63.09% and 80.0%, respectively in overlying water, while the removal efficiencies of TN and NH4+-N were 23.79% and 37.04%, respectively, and the concentration of TP increased by 43.71% in sediment after more than 4 months operation of the CEFD. The differences of accumulation of nitrogen (N) and phosphorus (P) in the 5 kinds of floating-bed plants were significant. The uptake rates of Thalia dealbata and Canna indica were higher than that of Acorus tatarinowii Schott, Herba menthae and O. Sativa L. The N uptake rates of Thalia dealbata and Canna indica were 12.19 g/(m2·d) and 7.90 g/(m2·d) with 0.81 g/(m2·d) and 0.99 g/(m2·d) to the P uptake rate respectively. The N and P uptake amounts in stems/leaves of Thalia dealbata and Canna indica were greater than that in roots. The ratios between stems/leaves and roots of N, P content were 2.73 and 1.93 in Canna indica respectively, while that were 1.83 and 1.19 in Thalia dealbata. Thus, the N and P in stems/leaves of floating-bed plants could be removed by reaping.
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  • [1] 刘娅琴, 邹国燕, 宋祥甫, 等. 框式复合型生态浮床对富营养水体浮游植物群落结构的影响.水生生物学报, 2010,34(1):196-203 Liu Y. Q., Zhou G. Y., Song X. F., et al. Effects of phytoplankton on community structure of box type complex ecological floating bed. Acta Hydrobiologica Sinica, 2010,34(1):196-203(in Chinese)
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  • 收稿日期:  2013-01-31
  • 刊出日期:  2013-06-11
郑立国, 杨仁斌, 王海萍, 宋建军. 组合型生态浮床对水体修复及植物氮磷吸收能力研究[J]. 环境工程学报, 2013, 7(6): 2153-2159.
引用本文: 郑立国, 杨仁斌, 王海萍, 宋建军. 组合型生态浮床对水体修复及植物氮磷吸收能力研究[J]. 环境工程学报, 2013, 7(6): 2153-2159.
shu
Zheng Liguo, Yang Renbin, Wang Haiping, Song Jianjun. Study on water remediation and uptake ability of nitrogen and phosphorus by plants using combined ecological floating bed[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2153-2159.
Citation: Zheng Liguo, Yang Renbin, Wang Haiping, Song Jianjun. Study on water remediation and uptake ability of nitrogen and phosphorus by plants using combined ecological floating bed[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2153-2159.
shu

组合型生态浮床对水体修复及植物氮磷吸收能力研究

  • 1. 湖南农业大学农业环境保护研究所, 长沙 410128
  • 2. 华中科技大学环境科学 与工程学院, 武汉 430074
  • 3. 湖南农业大学园艺园林学院, 长沙 410128
  • 收稿日期:  2013-01-31
基金项目:

国家科技部重大水专项的子项(2008ZX07211-001)

摘要: 在天鹅湖水体中构建以水生植物和陆生喜水植物为实验植物,浮法控制器、水循环增氧系统和造浪-输送系统相集合的组合型生态浮床。在中试研究中,研究了其对天鹅湖上覆水和沉积物中营养物质的修复动态。结果表明,经过4个多月的组合型生态浮床生态修复,天鹅湖上覆水中TN、NH4+-N和TP的去除率分别达到61.92%、63.09%和80.0%,沉积物中TN和NH4+-N含量的去除率分别达到23.79%和37.04%,TP含量升高了43.71%;组合型生态浮床的5种浮床植物的氮磷累积量差异显著,再力花和美人蕉对氮磷的吸收速率显著高于菖蒲、薄荷和水稻,再力花和美人蕉对氮的吸收速率达到12.19 g/(m2·d)和7.90 g/(m2·d),对磷吸收分别达到0.81 g/(m2·d)和0.99 g/(m2·d)。美人蕉和再力花对氮磷的吸收量均是茎叶>根系,其中美人蕉茎叶氮、磷吸收量分别为根系的2.73倍和1.93倍,再力花分别为1.83倍和1.19倍,通过浮床系统植物水上部分的收割可以去除水体中的氮磷。

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