Iron-carbon micro-electrolysis composite filler based on wetland plant residues and preparation method of iron-carbon micro-electrolysis composite filler

The invention discloses and relates to an iron-carbon micro-electrolysis composite filler based on wetland plant residues. The iron-carbon micro-electrolysis composite filler is prepared from a framework material, the wetland plant residues and reducing iron powder through a series of working procedures of crushing, sieving, mixing and bonding, anaerobic high-temperature calcination and the like. By the adoption of the scheme, the defects of an existing wetland plant residue resourceful treatment technology are overcome, the iron-carbon micro-electrolysis composite filler based on the wetland plant residues is provided, the preparation cost is low, the treatment effect is good, and the iron-carbon micro-electrolysis composite filler based on the wetland plant residues has the advantages that the wetland plant residues are utilized in a resourceful mode; the porous carbon has the advantages of high porosity, large specific surface area, high electron transfer rate and the like, so that the sewage treatment eff