Effect of rainfall intensity on colloid migration in vegetation filter strips

被引:0
|
作者
Li Y. [1 ]
Yu C. [1 ,2 ]
Sun Y. [1 ]
Duan P. [1 ]
机构
[1] College of Hydrology and Water Resources, Hohai University, Nanjing
[2] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing
关键词
Colloid migration; Deposition and adsorption efficiency coefficient; Rainfall intensity; Vegetation filter strips;
D O I
10.3880/j.issn.1004-6933.2020.06.018
中图分类号
学科分类号
摘要
An experiment of colloid migration in the 10 m long vegetative filter strips under artificial rainfall conditions was made, and the colloid migration model of coupled rainfall were set up to explore the effect of rainfall intensity on the colloid migration through vegetation filter strips. The results show that under different rainfall intensity, the deposition and adsorption efficiency coefficient of the colloid in the vegetative filter strips decreased exponentially with the migration distance, and tended to be stable at location of about 6m. With the increase of rainfall intensity, the deposition and adsorption efficiency coefficient value of the colloid in the vegetative filter strips increased as a whole, indicating that the colloid removal effect under the larger rainfall intensity was better. © 2020, Editorial Board of Water Resources Protection. All rights reserved.
引用
收藏
页码:112 / 116
页数:4
相关论文
共 22 条
  • [1] CHEN Xiaoli, Yong LEI, HUANG Guoru, Evaluation on non-point source pollution in Feilaixia Reservoir Area of Beijiang River[ J], Water Resources Protection, 35, 2, pp. 44-48, (2019)
  • [2] JIANG J, NA A N, ZHANG Y, Et al., Influence ofrainfall run-off in hydrologic process on non-point pollution[ J], Journal of Anhui Agricultural Sciences, 13, 2, pp. 380-383, (2012)
  • [3] SUN Jinwei, Wensheng XU, Research advances in ecological functions andfiltration mechanism of riparian buffer[ J], Journal of Yangtze River Scientific Research Institute, 34, 3, pp. 40-44, (2017)
  • [4] PAN C Z, MA L, SHANGGUAN Z P., Effectiveness of grass strips in trapping suspended sediments from runoff[J], Earth Surface Processes & Landforms, 35, 9, pp. 1006-1013, (2010)
  • [5] ARORA K, MICKELSON S K, HELMERS M J, Et al., Review of pesticide retention processes occurring in buffer strips receiving agricultural runoff[J], Jawra Journal of the American Water Resources Association, 46, 3, pp. 618-647, (2010)
  • [6] YU C, GAO B, MUNOZ-CARPENA R., Effect of dense vegetation on colloid transport and removal in surface runoff[J], Journal of Hydrology, 434, 435, pp. 1-6, (2012)
  • [7] Chongrong YU, DUAN Peiyi, Quantitative research advance on vegetative filter strips for non-point source pollution control[J], Water Resources Protection, 34, 2, pp. 68-74, (2018)
  • [8] SUN Dongyao, TONG Chuang, JI Qinyang, Et al., Reduction of simulated runoff and total phosphorus in different vegetation riparian buffer[J], Acta Scientiae Circumstantiae, 38, 6, pp. 2393-2399, (2018)
  • [9] Yong LI, WANG Yingying, XU Chun, Et al., Colloid characteristic in hyporheic zone and its influencing mechanism on facilitated-transport of biogenic elements[J], Journal of Hohai University(Natural Sciences), 47, 4, pp. 296-303, (2019)
  • [10] WU L, GAO B, MUNOZ-CARPENA R., Experimental analysis of colloid capture by a cylindrical collector in laminar overland flow [ J ], Environmental Science & Technology, 45, 18, pp. 7777-7784, (2011)