The invention discloses a method for intensively removing
heavy metals in
sludge by using an electroosmosis
dehydration device. The method for intensively removing
heavy metals in
sludge by using an electroosmosis
dehydration device comprises the following steps of: adding a certain
mass of inorganic salt or chelating agent into
sludge, uniformly stirring to obtain mixed sludge, setting electroosmosis
dehydration process parameters, and dehydrating the mixed sludge by using the electroosmosis dehydration device to remove the
heavy metals in the mixed sludge, the chelating agent being an
organic acid containing at least one carboxyl group, and being easy to chelate with heavy metals in the sludge. By adding the inorganic salt or the chelating agent into the sludge, the removal rate of heavymetals in the sludge in the electroosmotic dehydration process can be increased, meanwhile, the
moisture content of a
sludge cake of the dehydrated sludge is low, the
effective volume reduction of the sludge is realized, and the subsequent treatment and utilization of the sludge are facilitated; the added inorganic salt does not cause secondary
pollution to the sludge, and the added chelating agent is degradable and environment-friendly.