To efficiently recover harmful heavy metals and metals of useful resources by forming a metal recovery body which is used when heavy metals removed from polluted soil are recovered on the surface of the earth to have the core of a magnetic substance coated with a skin which adsorbs metal ions.
An apparatus for recovering heavy metals is composed of a direct current power source 1, a positive electrode body 2, a negative electrode body 3, an adsorption body 4, an adsorption body regenerator, etc. The adsorption body 4 is a metal recovery body which adsorbs ionic substances which move on the basis of the potential difference between two electrodes 2, 3 and has, for example, the core 11 of a magnetic substance in the shape of a sphere 1-10mm in diameter. The adsorption body 4 is prepared by a method in which a polymer of a polyolefin main chain the molecule of which has an iminodiacetic acid type coordination group having a metal ion adsorption function, an aminophosphoric acid type coordination group, etc., and contains no heavy metals, inert gas is introduced during heating, is sprayed to the surface of a magnetic substance and dried rapidly in the state of pressure close to vacuum to form a polymer 12 having a porous body surface.
BABA YUKO
HARADA KAZUNARI
OYASATO NAOHIKO
GOTANDA TAKESHI
FURUYA TOMIAKI
SASAKI KUNIHIKO
KANAZAWA SATOSHI
