One kind of depth sludge dewatering

The present invention provides a method of dewatering sludge depth, comprising the steps of: adding to sludge slurry pulp sludge dry weight of 1 to 10% of a free radical generator, mixing; contained to the radical generating substance sludge slurry was added to the transition metal, magnesium and / or aluminum activator, activation reaction of active radicals, and by living radical activity to give the conditioned sludge slurry; the conditioned sludge dehydrating the slurry. Sludge dewatering depth of the present invention a method using a transition metal, magnesium and / or aluminum and other reactive free radicals and radical generator was produced by the reaction, one can effectively destroy the extracellular polymeric sludge, sludge particles change the surface nature, improve the filtration performance of sludge, reducing sludge bound water content; on the other hand can be activated ion after completion of the reaction can be carried out in conjunction with the sludge particles, can improve the strength of floc sludge, sludge dewatering process advantageously in order to achieve the depth of dewatered sludge.