The invention discloses a technological method for recycling treatment of waste emulsified liquid. The technological method comprises the following steps: (1) filtering the waste emulsified liquid andconveying the waste emulsified liquid into a pre-treatment tank; raising the temperature and stirring; adding a separation agent; dividing separated emulsified liquid into an upper layer, a middle layer and a lower layer; (2) conveying a lower-layer material into a centrifugal
machine and separating to obtain waste dreg and
wastewater I; carrying out high-temperature
desorption on a middle-layermaterial; after condensing a
gas phase, thus obtaining an oil-water mixture; meanwhile, obtaining
wastewater II; conveying an upper-layer material into a
distillation tower and carrying out vacuum treatment to obtain recyclable
fuel oil; (3) carrying out secondary demulsification,
Fenton oxidation and biochemical treatment on the
wastewater I of step (2) and then discharging; carrying out the
Fenton oxidation and the biochemical treatment on the wastewater II and discharging; (4) conveying
tower-bottom waste dreg of the
distillation tower in step (2) into a
thermal desorption device and carrying out the high-temperature
desorption; taking a generated
gas phase as
fuel gas for
thermal desorption. The technology disclosed by the invention has the advantages that the quantity of the generatedwaste dreg is reduced, the
oil content of residues can be reduced to be 1 percent or lower and the
precipitation of
leachate in treatment processes of backfilling and the like can be effectively prevented.