Abstract
In this study, indoor sand column experiment was used to simulate the rain flood recharging groundwater, the effect of suspended solids concentration on porous media clogging was studied. The experiment set three different particle size sand columns and different concentration of suspended matter back irrigation, 50mg/L, 100mg/L, 200mg/L, and intermittent recharge respectively, analyzed the change regulation of water flux and permeability coefficient. The results showed that:Under the same particle size, porous medium was easier to be clogged by the increase of concentration of the suspended solids; Under the same condition of the concentration of suspended solids, it was easier to recharge when the particle size of the porous medium was smaller.
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