The invention relates to an iron-carbon micro-
electrolysis filler. The iron-carbon micro-
electrolysis filler is prepared from, by weight, 60-80wt% of fine
iron powder, 10-25wt% of
coal dust, 0.5-2wt%of a binder, 6-10wt% of an additive and 0.2-1wt% of a
metal catalyst. The invention further relates to a preparing method of the iron-carbon micro-
electrolysis filler. The preparing method comprises the steps that fine
iron powder with the sieving particle size as 100 mesh or above and the TFe larger than 70%, the
coal dust with 100 mesh, the binder, the additive and the
metal catalyst are mixed and stirred according to a proportion to prepare a mixed material; the mixed material is fed into a disc granulator for
pelletizing; spherical granules are dried; the dried spherical granules are loaded into a high-temperature-resistance tank for calcining; the spherical iron-carbon micro-electrolysis filler is taken out and packaged after detection. The iron-carbon micro-electrolysis filler has the advantages that the
treatment effect is good, the production cost is low, the application range is wide, the treatment
reaction speed is high, the effect is stable, and secondary
pollution cannot becaused; the biodegradability of
wastewater can be improved, the purpose of chemical
precipitation for dephosphorization is achieved,
settling of
sludge is facilitated, and less
sludge is generated bythe filler.