Effects of Colloid Transport on Permeability of Water-bearing Media in Subsurface Environment
نویسنده
چکیده
Abstract A sets of sand column experiments were conducted to investigate the transport and deposition of colloids in water-saturated porous media, and the mechanism of the permeability reduced by transport and deposition of colloids are discussed. The research results show that the breakthrough curves of colloid transport in water-bearing media presented as three stages: “not-yet-breakthrough”, “breakthrough in process”, “stable-breakthrough”, however, there were no completely breakthrough. The concentration of colloid had great influence on the permeability of water-bearing media, and the effect of low concentration was relatively smaller. The deposition of colloids was the main reason for the permeability loss of the porous media.
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