The invention discloses a harmless treatment process for waste vegetable leaves, and belongs to the technical field of cyclic utilization. The method comprises the following steps: S1, squeezing the waste vegetable leaves: crushing the waste vegetable leaves, and squeezing to obtain waste vegetable leaf
raffinate I and residues; s2, recycling the residues: recycling the residues of the waste vegetable leaves; s3, coagulating
sedimentation of the
raffinate I: enabling the
raffinate of the waste vegetable leaves to enter a coagulating
sedimentation tank, and meanwhile, adding a coagulant into the coagulating
sedimentation tank for coagulating sedimentation to obtain raffinate II and
sludge I; the waste vegetable leaves are squeezed after being crushed, the residues are recycled, the environment
pollution caused by random discarding of the residues is avoided, the economic benefit can be improved, the income can be increased, and meanwhile, after the residual liquid is subjected to coagulating sedimentation, hydrolytic acidification, stacked screw
machine treatment,
anaerobic treatment, anoxic treatment, aerobic treatment, secondary sedimentation,
ozone oxidation and
constructed wetland treatment, the residual liquid can be recycled, and the waste vegetable leaves can be recycled. And the discharged water can be used as
irrigation water for irrigating the farmland, so that the purposes of saving
water resources and realizing
green development are achieved.