The application discloses a kind of cooperation expired
medicine,
bauxite iron
recovery method of pharmaceutical
wastewater, comprising the following steps: S1,
bauxite is crushed, grinds, and then mixed with
hydrogen peroxide solution, and
bauxite slurry is prepared;S2, the expired
medicine, pharmaceutical
wastewater after crushing is added in bauxite
slurry, and is prepared as reaction
raw material;S3, after stirring, reaction
raw material is added in high temperature and
high pressure reaction kettle, and after reaching supercritical state,
electric heating is closed, and reaction is carried out by relying on oxidation self-heating until end;S4, after cooling, gas-liquid separation is carried out, and liquid-
solid mixture is carried out
magnetic separation, and Fe3O4 is recovered.The application realizes the
dealkalization treatment of bauxite, and the iron in bauxite is stably recovered, and the remaining
solid components can be better utilized, and due to the
supercritical water oxidation on
organic matter super strong oxidizability, the expired
medicine in
system is completed harmless degradation, and the heat generated by
organic matter oxidation is relied on to reduce
energy consumption cost.