| 摘要 |
PURPOSE: A method for recycling an industrial filter is provided to reduce the waste of resource used in the production of filter by recycling the filter with removing the stuck impurities stained in the filter. CONSTITUTION: A washing method of impurities stuck in a filter comprises steps of: washing impurities of the filter with compressed air or water; dissolving and washing impurities stuck in the filter with a strong acid solution or a strong alkali solution for 36-48hours; and drying by washing the filter dissolved and washed impurities with water as a neutral solution. Therefore the environmental pollution is prevented by recycling materials not to be easily dissolved because the filter of synthetic resin, a specific industrial waste, such as polypropylene, polyethylene and so on is restored.
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