The invention provides a preparation method of iron-carbon micro-
electrolysis ceramsite filler for
water treatment, which is characterized by comprising the following steps: 1, mixing iron
scrap, waste circuit board
powder,
river sediment powder of
loess cliff section of Xiaofu river in Zibo city of Shandong province and clay, the
mass ratio is (15 to 20) to (55 to 60) to (10 to 15) to (10 to 15), and the mixture is formed; 2, adding the mixture into a granulating disc, additionally adding binder
diluent for granulating, and the
mass of the binder
diluent is 25 to 30 percent, the spheroidal particles with each
diameter of Phi 3 to 5 mm are prepared; 3, calcining and cooling under
oxygen-free
atmosphere after the spheroidal particles are dried, and obtaining the iron-carbon micro-
electrolysis ceramsite filler. The iron-carbon micro-
electrolysis ceramsite filler is prepared by
solid waste such as waste iron
scrap and waste circuit board
powder as the main raw materials, the resources and energy are saved, using waste to treat waste and
energy conservation and emission reduction are realized. The
wastewater treatment effect is obviously superior to the existing ceramsite, especially for the iron-carbon micro-electrolysis
reduction treatment effect of highly toxic
wastewater containing
hexavalent chromium; and the iron-carbon micro-electrolysis ceramsite filler is long in service life, simple in maintaining, and easy in utilization of
regenerative cycle.