The invention relates to a combination type efficient
sludge dewatering conditioning method and belongs to the field of
sludge dewatering preprocessing. According to the technical scheme, the method includes performing
acidification treatment on
sludge to be dewatered through concentrated sulfuric, adjusting the pH of a sludge
system to range from 3.5 to 5, and stirring for 15 to 30min through a stirring blade; adding strong
oxidizing agent, namely
potassium ferrate, with the content of 0.2% to 4% of the total
solid sludge into acidified sludge after water dissolving, stirring for 2min in the speed of 200 to 300 r / min rapidly, and stirring for 20 to 40min in the speed of 80 to 150 r / min slowly; adjusting the pH to range from 3.5 to 5 through concentrated sulfuric, adding
ferrous sulfate with the content of 4% to 8% of the total
solid sludge after preparing the
ferrous sulfate as solution with the concentration of 20% to 50%, after stirring and scattering, adding H2O2, with the concentration of 30%, with the content of 4% to 8% of the total
solid sludge, and reacting for 30 to 50min completely during slow stirring; finally, adding quicklime with the content of 3% to 8% of the total solid sludge into the sludge conditioning
system, adjusting the
system pH to range from 6 to 8, scattering the quicklime evenly, and
dewatering.