Detoxification of polychlorinated biphenyl (PCB) by mechanochemical reaction and solid phase fine powder treatment

摘要

PROBLEM TO BE SOLVED: To detoxify PCB waste by a mechanochemical reaction. In the mechanochemical reaction, dechlorination and redox decomposition of PCBs occur synergistically and simultaneously, and PCBs are finally converted to carbon dioxide, water, metal chloride, etc. and detoxified. To. The detoxified final reaction product is a solid phase fine powder. SOLUTION: Add caustic soda, slaked lime, quicklime, iron / nickel nanoparticles, zeolite, water, etc. to the PCB stock solution or mixed insulating oil in an appropriate ratio and in order, and stir vigorously using mechanical aloing technology such as attritor. Mix and grind.