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滕云, 游少鸿, 陈梦华, 唐云舒, 卜永辉. 香蒲根际过滤对水中镉的去除[J]. 环境工程学报, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
引用本文: 滕云, 游少鸿, 陈梦华, 唐云舒, 卜永辉. 香蒲根际过滤对水中镉的去除[J]. 环境工程学报, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
shu
TENG Yun, YOU Shaohong, CHEN Menghua, TANG Yunshu, BO Yonghui. Removal cadmium from water by rhizofiltration using Typha angustifolia[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
Citation: TENG Yun, YOU Shaohong, CHEN Menghua, TANG Yunshu, BO Yonghui. Removal cadmium from water by rhizofiltration using Typha angustifolia[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
shu

香蒲根际过滤对水中镉的去除

  • 1.

    桂林理工大学广西环境污染控制理论与技术重点实验室, 桂林 541004

  • 2.

    广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林 541004

  • 基金项目:

    广西自然科学基金资助项目（2013GXNSFBA019210）

    广西矿冶与环境科学实验中心（KH2012ZD004）

    广西高等学校高水平创新团队及卓越学者计划项目（002401013001）

    广西科学研究与技术开发计划（桂科攻14124004-3-7）

    “八桂学者”建设工程专项

  • 中图分类号: X173

Removal cadmium from water by rhizofiltration using Typha angustifolia

  • 1.

    Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China

  • 2.

    Guangxi Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin 541004, China

  • Fund Project:

  • 摘要: 通过水培实验，研究香蒲根系对水中镉的根际过滤效果及富集量。结果表明：在镉浓度1 mg·L-1的静止水体中，香蒲根际过滤对镉的去除率为66%；在相同镉浓度并且水力停留时间为8 h的流动水体中，镉去除率为52%。香蒲体内富集的镉约90%集中在根部，且第1天镉的去除速率最快，镉浓度以约0.1 mg·h-1速率下降；在静止水体中，香蒲根系7 d对镉的富集量为682.99 mg·kg-1（DW），动态水体中香蒲根系富集量达1 096.94 mg·kg-1，可有效去除水中的镉。
    Abstract: A hydroponic culture was established to investigate the ability of Typha angustifolia to remove cadmium from water,and to determine the accumulation of T. angustifolia cadmium absorption. The results indicate that the roots of T. angustifolia could effectively remove cadmium from water. After 7 d in the treated water (1 mg·L-1 cadmium stationary solution),cadmium removal efficiency of the rhizofiltration was 66%. A lab-scale continuous rhizofiltration clean-up system with HRT (8 h)resulted in a cadmium removal efficiency of over 52%. Cadmium absorption by T. angustifolia was the highest on the first day;nearly 90% of absorbed cadmium accumulated in the roots. Furthermore,the cadmium concentration decreased at a rate of approximately 0.1 mg·h-1. In stationary water,by 7 d,the concentration of cadmium in T. angustifolia roots was 682.99 mg·kg-1 (DW),whereas accumulation in the T. angustifolia roots in the continuous clean-up system was 1 096.94 mg·kg-1.
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出版历程
  • 收稿日期:  2016-04-01
  • 刊出日期:  2017-03-10
滕云, 游少鸿, 陈梦华, 唐云舒, 卜永辉. 香蒲根际过滤对水中镉的去除[J]. 环境工程学报, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
引用本文: 滕云, 游少鸿, 陈梦华, 唐云舒, 卜永辉. 香蒲根际过滤对水中镉的去除[J]. 环境工程学报, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
shu
TENG Yun, YOU Shaohong, CHEN Menghua, TANG Yunshu, BO Yonghui. Removal cadmium from water by rhizofiltration using Typha angustifolia[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
Citation: TENG Yun, YOU Shaohong, CHEN Menghua, TANG Yunshu, BO Yonghui. Removal cadmium from water by rhizofiltration using Typha angustifolia[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1545-1548. doi: 10.12030/j.cjee.201512064
shu

香蒲根际过滤对水中镉的去除

  • 1.  桂林理工大学广西环境污染控制理论与技术重点实验室, 桂林 541004
  • 2.  广西岩溶地区水污染控制与用水安全保障协同创新中心, 桂林 541004
  • 收稿日期:  2016-04-01
基金项目:

广西自然科学基金资助项目（2013GXNSFBA019210）

广西矿冶与环境科学实验中心（KH2012ZD004）

广西高等学校高水平创新团队及卓越学者计划项目（002401013001）

广西科学研究与技术开发计划（桂科攻14124004-3-7）

“八桂学者”建设工程专项

摘要: 通过水培实验，研究香蒲根系对水中镉的根际过滤效果及富集量。结果表明：在镉浓度1 mg·L-1的静止水体中，香蒲根际过滤对镉的去除率为66%；在相同镉浓度并且水力停留时间为8 h的流动水体中，镉去除率为52%。香蒲体内富集的镉约90%集中在根部，且第1天镉的去除速率最快，镉浓度以约0.1 mg·h-1速率下降；在静止水体中，香蒲根系7 d对镉的富集量为682.99 mg·kg-1（DW），动态水体中香蒲根系富集量达1 096.94 mg·kg-1，可有效去除水中的镉。

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