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Oxidation ponds are widely used for wastewater treatment in developing countries because of the relative simplicity and low operating costs. Thanks to the permeability of the soil layer at the bottom of ponds, contaminants can go into groundwater from wastewater during its residence period. In this study, about 14 shallow groundwater samples were collected from pumping wells around an oxidation pond...
With this study, we investigated an approach of applying an electrocoagulation method for the removal of humic acid from groundwater. Aluminium electrodes were selected in the experiment. Some major experimental factors, such as electrode distance, current densities and pH values were explored. Results suggest that, given a small electrode interval and/or a high current density, a lower pH value leads...
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