▎ 摘　　要

NOVELTY - Processing salt-containing wastewater based on microelectrolysis includes preparing graphene oxide dispersion liquid, atomizing and granulating the graphene oxide dispersion liquid by spraying, directly curing the particles after granulation by liquid nitrogen, and freeze drying to obtain porous graphene oxide gel microsphere; placing the porous graphene oxide gel microsphere in iron salt solution, stirring and mixing, dropping sodium borohydride solution, rapidly stirring, and drying the solid obtained by reaction to obtain graphene porous gel loaded nano-zero-valent iron material; uniformly mixing the prepared graphene porous gel loaded nano-zero-valent iron material, carbon powder, urea, clay, and deionized water, and granulating, and sintering to obtain porous microelectrolysis filler; and putting the prepared porous microelectrolysis filler in a reactor. USE - The method is for processing salt-containing wastewater based on microelectrolysis. ADVANTAGE - The filler has rich pore structure, large specific surface area, and good adsorption performance, which can effectively improve the micro-electrolysis efficiency, so as to improve the treatment efficiency of the salt-containing wastewater. DETAILED DESCRIPTION - Processing salt-containing wastewater based on microelectrolysis comprises preparing graphene oxide dispersion liquid, atomizing and granulating the graphene oxide dispersion liquid by spraying, directly curing the particles after granulation by liquid nitrogen, and freeze drying to obtain porous graphene oxide gel microsphere; placing the porous graphene oxide gel microsphere in iron salt solution, stirring and mixing, dropping sodium borohydride solution, rapidly stirring, and drying the solid obtained by reaction to obtain graphene porous gel loaded nano-zero-valent iron material; uniformly mixing the prepared graphene porous gel loaded nano-zero-valent iron material, carbon powder, urea, clay, and deionized water, and granulating, and sintering to obtain porous microelectrolysis filler; and putting the prepared porous microelectrolysis filler in a reactor, continuously introducing salt-containing wastewater into the reactor, processing under stirring condition, and discharging the processed wastewater to industrial discharge standard.