| 摘要 |
PROBLEM TO BE SOLVED: To provide a treatment system of aqueous muddy material in which heavy metals can be removed from the aqueous muddy material containing the heavy metals and, meanwhile, ferrous metals particles can be removed as ferrous raw material.SOLUTION: A treatment system T1 of aqueous muddy material includes a heavy metals treating device 13, a wet type drum magnetic separator 14 and a pressure filter 16. The heavy metals treating device 13 removes heavy metals in the aqueous muddy material and produces the aqueous muddy material containing no heavy metals. The wet type drum magnetic separator 14 adsorbs and separates the ferrous metals particles by virtue of a magnetic force from the aqueous muddy material which does not contain the heavy metals discharged from the heavy metals treating device 13 to recover the ferrous metals particles. The pressure filter 16 subjects the aqueous muddy material discharged from the wet type drum magnetic separator 14 to pressure filtration to produce dehydrated cake. In the heavy metals treating device 13, a fixed bed of chelate resin, ion exchange resin, iron powder or activated carbon is arranged in a tower and a packed tower in which the aqueous muddy material is circulated through void parts in fixed beds is used. |
