[1]李先宁,宋海亮,吕锡武,等.水耕植物过滤法对溶解性氮磷去除的影响因子[J].东南大学学报(自然科学版),2005,35(5):792-796.[doi:10.3969/j.issn.1001-0505.2005.05.029]
 Li Xianning,Song Hailiang,Lü Xiwu,et al.Factors affecting dissolved nitrogen and phosphorus by hydroponic bio-filter method[J].Journal of Southeast University (Natural Science Edition),2005,35(5):792-796.[doi:10.3969/j.issn.1001-0505.2005.05.029]
点击复制

水耕植物过滤法对溶解性氮磷去除的影响因子()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第5期
页码:
792-796
栏目:
环境科学与工程
出版日期:
2005-09-20

文章信息/Info

Title:
Factors affecting dissolved nitrogen and phosphorus by hydroponic bio-filter method
作者:
李先宁1 宋海亮1 吕锡武1 西村修2 稻森悠平3
1 1 东南大学土木工程学院, 南京 210096; 2 日本东北大学土木工程系, 仙台 980-77; 2 3 日本国立环境研究所, 筑波 305-0053
Author(s):
Li Xianning1 Song Hailiang1 Lü Xiwu1 Osamu Nishimura2 Yuhei Inamori3
1 College of Civil Engineering, Southeast University, Nanjing 210096, China
2 Department of Civil Engineering, Tohoku University, Sendai 980-77, Japan
3 National Institute for Environmental Studies, Tsukuba 305-0053, Japan
关键词:
水耕植物过滤法 植物吸收 底泥释放 生物脱氮 人工湿地
Keywords:
hydroponic bio-filter method plant absorption sediment release denitrification constructed wetland
分类号:
X171.4;X524
DOI:
10.3969/j.issn.1001-0505.2005.05.029
摘要:
为改善水耕植物过滤法(HBFM)对溶解性氮、磷的去除效果,通过室内模拟试验定量分析HBFM试验床中植物吸收、底泥释放及生物脱氮3个影响因子的作用.试验结果表明:底泥NH4+-N释放速率滤床上游高出中游及下游的1.6~3倍; 水相的高溶解氧条件抑制了底泥释放PO43--P; 试验床中植物平均氮吸收量、底泥平均氮释放量和微生物平均脱氮量分别为352.9,492.8和153.1 mg/(m2·d),植物吸收与微生物脱氮量之和近似等于底泥氮释放量.因此合理控制底泥清除周期减少底泥释放量,是提高HBFM溶解性氮、磷去除能力的重要途径之一.
Abstract:
The roles of plant absorption, sediment release and denitrification were quantitatively analyzed by indoor simulating tests in order to improve removal effect of hydroponic bio-filter method(HBFM)for dissolved nitrogen and phosphorus. According to the test results, the NH4+-N release from sediment mainly occurs in upper past, and its release rate is 1.6 to 3 times higher than that in middle and lower past. The release rate of PO43--P by sediment is small because of the high level of dissolved oxygen in filter bed water phase. The average absorption rate of nitrogen by plants, nitrogen release rate from sediment and denitrification rate are 352.9, 492.8 and 153.1 mg/(m2·d)respectively. The sum of nitrogen removed by denitrification and plant assimilation is approximately equal to the amount released by sediment. Reducing the nutrient quantity released by sediment through manipulating the period for digging up sediment is necessary to enhance removal ability of HBFM for dissolved nitrogen and phosphorus.

参考文献/References:

[1] Karathanasis A D,Potter C L,Coyne M S.Vegetation effects on fecal bacteria,BOD,and suspended solid removal in constructed wetlands treating domestic wastewater[J].Ecological Engineering,2003,20(2):157-169.
[2] Yang Yang,Xu Zhencheng,Hu Kangping,et al.Removal efficiency of the constructed wetland wastewater treatment system at Bainikeng,Shenzhen[J].Water Science and Technology,1995,32(3):31-40.
  Morihiro A,Hiroyuki N.Succession of benthos and nutrient removal rate in the hydroponic culture system[J].Journal of Japan Society on Water Environment,1995,18(8):624-627.(in Japanese)
  Morihiro A,Hiroyuki N.Development of constructed wetland using hydroponic biofilter method for purification of hyper-eutrophic lake water [J].Journal of Japan Society on Water Environment,1997,20(9):622-628.(in Japanese)
[5] Wetzel R G.Fundamental processes within natural and constructed wetland ecosystems:short-term versus long-term objectives[J]. Water Science and Technology,2001,44(11,12):1-8.
  Masako T,Satoko K,Aki K,et al.Nitrogen and phosphorus from river water in reed-wetland bed[J].Journal of Japan Society on Water Environment,1996,19(4):331-338.(in Japanese)
[7] Mashauri D A,Mulungu D M M,Abdulhussein B S.Constructed wetland at the University of Dar es Salaam [J].Water Research,2000,34(4):1135-1144.
[8] Wang H,Appan A,Gulliver J S.Modeling of phosphorus dynamic in aquatic sediments:Ⅰ— model development [J].Water Research,2003,37(16):3928-3938.
[9] Kim L H,Choi E,Gil K I,et al.Phosphorus release rates from sediments and pollutant characteristics in Han River,Seoul,Korea [J].Science of the Total Environment,2004,321(1-3):115-125.
[10] 李先宁,吕锡武,宋海亮,等.水耕植物过滤法净水系统底泥硝化反硝化潜力研究[J].环境科学,2005,26(2):93-97.
  Li Xianning,Lü Xiwu,Song Hailiang,et al.Potential of nitrification and denitrification in water purification system with hydroponic bio-filter method[J].Environmental Science,2005,26(2):93-97.(in Chinese)

备注/Memo

备注/Memo:
基金项目: 国家高技术研究发展计划(863计划)资助项目(2002AA601012-1A)、国家自然科学基金资助项目(50378014)、江苏省自然科学基金资助项目(BK2004075).
作者简介: 李先宁(1964—),男,博士,副教授,lxn@seu.edu.cn.
更新日期/Last Update: 2005-09-20