Method for preparing industrial potassium sulfate from organic hazardous waste polluted salt containing potassium chloride and sodium sulfate

The invention discloses a method for preparing industrial potassium sulfate from organic hazardous waste polluted salt containing potassium chloride and sodium sulfate, and belongs to the technical field of organic hazardous waste polluted salt treatment. The method comprises the following steps: respectively carrying out low-temperature anaerobic critical carbonization on potassium chloride organic hazardous waste dirty salt and sodium sulfate organic hazardous waste dirty salt to remove organic matters, respectively preparing the obtained carbonized dirty salt into a sub-saturated potassium chloride dirty salt solution and a sub-saturated sodium sulfate dirty salt solution, and respectively carrying out carbon removal, impurity removal and pH value adjustment on the two solutions; then mixing the two solutions in proportion, heating, evaporating and separating out wet glaserite, finally mixing and stirring the wet glaserite and a quantitative saturated potassium chloride solution, and crystallizing to obtai