| abstract |
(57) [Abstract] [Problem] Waste treatment material and treatment method that can stabilize hazardous heavy metals contained in mineral waste incineration ash, slag, soil, sludge, shredder dust, etc. so as not to re-elute for a long period of time. I will provide a. At least one of iron powder, amorphous aluminum hydroxide, silicon dioxide, silicate, and phosphate, preferably iron powder, and amorphous aluminum hydroxide, silicon dioxide, At least one of silicates or phosphates, more preferably, a treatment material obtained by adding amorphous aluminum hydroxide and phosphate to iron powder is used as a harmful substance such as lead, cadmium, mercury, chromium, copper or nickel. A waste treatment method that mixes with waste containing, kneading with water if necessary, and curing and solidifying, Silicon dioxide or silicate is porous silicon dioxide or aluminum silicate having a BET specific surface area of 150 m 2 / g or more and less than 1000 m 2 / g, and phosphate is at least one of magnesium salt, aluminum salt, calcium salt and iron salt. preferable. |