Vacuum potassium carbonate desulfurization waste liquid treatment system

The utility model relates to the technical field of wastewater treatment, in particular to a vacuum potassium carbonate desulfurization waste liquid treatment system which comprises a reverse osmosis device, a subcritical water oxidation device and a biochemical treatment device which are connected in sequence, wherein the reverse osmosis device is configured to perform reverse osmosis treatment on the desulfurization waste liquid obtained by the vacuum potassium carbonate desulfurization process to obtain a concentrated solution; the subcritical water oxidation device is configured to perform subcritical water oxidation treatment on the concentrated solution to obtain a treated solution; and the biochemical treatment device is configured to perform biochemical treatment on the treatment liquid and then discharge the treatment liquid after reaching the standard. According to the utility model, the pollution resistance and the separation capacity of reverse osmosis are fully utilized, toxic substances and orga