The invention relates to a
silt and
sewage treatment method, and belongs to the technical field of mine
sewage treatment. The method comprises the following steps: (1) performing
silt separation, namely performing primary separation on the
silt and the
sewage, and separating sand out; (2) performing
sedimentation treatment, namely adding 0.2 to 0.4
mass percent solution of anionic
polyacrylamide into the sewage, then adding 0.1 to 0.3
mass percent solution of anionic
polyacrylamide into the sewage after
sediment is generated, and separating the
sediment out; and (3) performing
sediment filter pressing, namely filter-pressing the sediment separated out by the step (2). The method of the invention effectively solves the mine
sewage treatment problem, and separates three useful substances out comprising coarse sand, fine sand and
sludge so as to increase the creation income of the enterprise.