| 摘要 |
<p>PROBLEM TO BE SOLVED: To safely and stably obtain an excellent preventing, effect on the elution of heavy metals with a smaller amount of a heavy metal fixing agent to be added to uniformly adding and mixing the heavy metal fixing agent to the wet process shredder dust obtd. by a wet process sorting method without separately providing a chemical mixing device. SOLUTION: The heavy metal fixing agent is added to a water pit 2 of a wet process gravity sorting chamber in sorting the shredder dust in the water pit 2 of the wet process gravity sorting chamber.</p> |
