Abstract
Based on the pilot experiment on quick start-up of filter for removing manganese, amplification experiment was carried out. High concentration aeration and low concentration running were used in this experiment as starting mode. The maturity period of the filter for manganese removal is 9 days. Through the research on the distribution of manganese ions in filter bed by different filtration rate, the result shows a bigger depth of the filter bed is needed with the increase of filtration rate. For raw water with manganese ions concentration of 1.0-1.5 mg•L-1, the highest flow rate that can be handled by this equipment is 0.7 m•h-1. The blockages in filter bed can be washed out under the condition that the back washing intensity is 7.81 L•s-1•m-2 and the back washing time is 5 min. The back washing period of the filter is 13 days.
Published Version
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