Agent vacuum pre-compression method for treating engineering waste slurry

The invention belongs to the field of technologies for protecting environments, and particularly discloses an agent vacuum pre-compression method for treating engineering waste slurry. The agent vacuum pre-compression method includes basic steps of adding appropriate quantities of appropriate types of chemical agents into the waste slurry to reduce the water content of the waste slurry and forming sediments with certain framework structures; applying vacuum loads to the sediments to pre-compress the sediments, reducing the water contents of the sediments until preset requirements are met, stopping applying the vacuum loads to the sediments, disassembling vacuum drainage systems and transporting mud to required places after solid and liquid in the mud are separated from each other. The agent vacuum pre-compression method has the advantages that the agent vacuum pre-compression method is high in treatment capacity and treatment efficiency, tens of thousands of squares of slurry to hundreds of thousands of squares of slurry can be treated at one step, and accordingly the agent vacuum pre-compression method is particularly applicable to intensive slurry treating; the mud is low in water content and high in strength after the solid and the liquid in the mud are separated from each other, and can be used as raw materials of building materials, and shortage of earthwork can be overcome if the mud is used for brick manufacturing or building place backfill; the agent vacuum pre-compression method can be used for land reclamation, enclosure regions can be filled with the ultimately treated mud, accordingly, the construction periods can be shortened, and the cost can be lowered.