| abstract |
The present invention provides a method for efficiently removing harmful substances by using a chemical separation method and a physical separation method in combination with various incineration ash, coal ash, sludge, sludge, and contaminated soil. SOLUTION: A step of liquefying or muddying an object containing a toxic substance, and administering water 4, air 6 and an inorganic electrolytic flocculant 8 as a means for solidifying the toxic substance; A step of administering to the recovery device 10, a step of separating the waste liquid and the solid by centrifugal force due to high-speed rotation of the first material decomposition recovery device, introducing the separated waste liquid into the second material decomposition recovery device, The process of recovering the other separated solid as a primary regenerated product, and the sewage introduced into the second material decomposition and recovery device separates the solid from the sewage by high-speed rotation and the magnetic field action of a non-refrigerant conduction magnet One of the liquids from which the solid is separated is recovered as the original liquid of the second regenerated product as a clarified liquid, and the other solid is recovered and purified from incinerated ash and soil containing harmful substances by a separate recovery process. To process. [Selection] Figure 1 |