A heavy metal and heavy metal contaminated soil leaching method and apparatus of concentrating

The present invention discloses a heavy metal and heavy metal contaminated soil leaching concentrating methods, comprising: a pre-crushed soil crusher, rinsed with the eluent, the Soil rotating separation roller screen with more than 20mm, the vibrating screen separator 2-20mm out of the soil, the soil slurry fed to less than 2mm of two cyclone separators for mud rotary grading, and light weight while the remainder is fed into the sedimentation tank dewatering screen, the sedimentation tank to the deposition of soil the supernatant was fed to a filter press sludge thickener, dewatering screen separating soil and 0.075-2mm rest to the two cyclone separator, sludge thickening tank added heavy metal removers, coagulation coagulant agent and concentrated. By the above-described embodiment, the present invention is a heavy metal and heavy metal contaminated soil leaching method and apparatus of concentrating by elution fractionation technique and screening of heavy metal contaminated soil clear and highly concentrated, so as to meet safety standards.