| abstract |
The invention discloses a magnetic compound-cyanide lyase composite nano-particle, a preparation method and application thereof, and a method for treating electroplating wastewater by adopting the magnetic compound-cyanide lyase composite nano-particle, wherein the preparation raw materials of the composite nano-particle comprise: spinel-type ferromagnetic nanoparticles, magnetic oxide nanoparticles, SiO 2 Nanoparticles, cyanide decomposing enzyme, first high molecular compound, second high molecular compound, silane, amine compound, nucleoside monophosphate disodium salt, first inorganic metal salt and second inorganic metal salt; by modifying spinel ferromagnet with amino group, by wrapping with SiO 2 The magnetic oxide nanoparticles are modified by epoxy groups, and then are respectively subjected to metal adsorption coupling through first inorganic metal and enzyme, so that the enzyme coupling mode and amount are increased, the enzyme activity and the applicable pH range and temperature range are stabilized, and the magnetic substances can be used for adsorbing heavy metal ions or dyesSimultaneously achieves the effect of decomposing cyanide and reduces the usage amount of the flocculating agent and the sludge amount after treatment. |