▎ 摘　　要

NOVELTY - Harmless treatment of desulfurization waste alkali liquor comprises (a) collecting waste alkali liquor into gravity sedimentation tank through drainage pump, absorbing harmful substances in the waste alkali liquor by solidified substrate in the gravity sedimentation tank and forming a colloid, where the solidified substrate is lime or cement kiln dust, diatomaceous earth and/or graphene oxide and (b) pumping pre-clarified waste alkali liquor into the reactor through transfer pump, adding quantitative quicklime, stirring, introducing into the rake dryer, drying under heating and vacuum conditions to form powder, temporarily storing powder in the rainproof shed for natural oxidation and conveying to the solid waste treatment unit for subsequent treatment. USE - The method is useful for harmless treatment of method for desulfurization waste alkali liquor. ADVANTAGE - The method: is simple, easy and environment-friendly; and has low processing cost.