Construction waste soil screening, sand washing and filter pressing comprehensive treatment method

The invention relates to the technical field of construction muck treatment, and discloses a construction muck screening, sand washing and filter pressing comprehensive treatment method which comprises the following steps: soaking construction muck to form slurry slag; stone in the slurry slag is separated out through the muck screening system, sand-containing slurry is formed by the slurry slag, sand in the sand-containing slurry is separated out through the sand washing system, clay slurry is formed by the sand-containing slurry, and the clay slurry is discharged into a slurry pool; mixing and reacting the clay mud and the medicament water in a concentration tank to form precipitated mud and clear water, and pumping the clear water for storage; and pressing the precipitated slurry filtered water into a plate-shaped mud cake by using a plate-type filter press. The construction muck is screened into stones, sand, mud cakes and water through multiple procedures, the sand can be used for concrete mixing in a mi