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| Safe disposal of dust residue |
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| Add half a cup of liquid detergent into a large bucket half-full of water and stir well. Dump dust from trays or paper into the solution (but never vice versa) and continue to stir until all the dust settles down at the bottom. Leave the mixture until all gas bubbles present are released. Decomposition is now complete. Dispose the mixture onto a garbage heap or into the ground. As alumina present in the mixture, is a constituent of clay, it does not pollute the atmosphere. However, do not pour it in a toilet. Paper and aluminium foil used to collect the dust residue should be burnt. Empty containers and tubes should be collected and buried in the ground. |
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