J4 ›› 2011, Vol. 41 ›› Issue (2): 448-454.

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The Porous Media Clogging Due to Suspended Solid During the Artificial Recharge of Groundwater

LU Ying1, DU Xin-qiang1, CHI Bao-ming1|2, YANG Yue-suo1,3, LI Sheng-tao4, WANG Zi-jia1   

  1. 1.College of Environment and Resources|Jilin University, Changchun 130026, China;
    2.Institute of Disaster Prevention Science and Technology, Beijing 101601, China;
    3.College of Earth Sciences,Cardiff University,Cardiff CF10 3YE, UK;
    4.Center for Hydrogeology and Environmental Geology, CGS, Baoding 071051, Hebei|China
  • Received:2010-04-21 Online:2011-03-26 Published:2011-03-26

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Abstract:

Techonology and development about the groundwater artificial recharge have been limited by clogging due to physical, chemical or biological reactions during recharge. Laboratory column was used to describe the clogging process by injecting water with suspended particles into virgin quartz sand. The results indicated that clogging occurred at the beginning of the reduction of the hydraulic conductivity(K) in the upper layer, and extended deeper to about 10 cm until about 100 h when K of the upper layer became steady. The calculated clogging rates(λ) of different layers decreased with depth, the largest value of which is 0.038 3 h-1 in the upper 1 cm. Moreover, the overall hydraulic conductivity began to fall later than the surface layer, and increasingly affected by the clogging layer within the time.

Key words: groundwater, artificial recharge, suspended solid, clogging, porous(media)materials

CLC Number: 

  • P641.25
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