Processing method of landfill leachate

The invention discloses a processing method of landfill leachate. The processing method comprises following steps: the landfill leachate is mixed with lime for sedimentation processing so as to obtain a sedimentation liquid containing solid slag; the sedimentation liquid containing solid slag is subjected to first filtration processing so as to obtain the solid slag and a first filtrate; the first filtrate is subjected to first absorption processing using anion exchange resin so as to obtain a first after absorption liquid and adsorption saturated anion exchange resin; the first after absorption liquid is subjected to air stripping so as to obtain an after air stripping liquid; the after air stripping liquid is subjected to second absorption processing using active carbon so as to obtain a second after absorption liquid; and the second after absorption liquid is subjected to second filtration processing so as to obtain an after purified liquid and active carbon slag. According to the processing method, the la