Landfill leachate wastewater passes through a collection tank, enters an evaporation system after passing through a pretreatment system to separate out crystalline salt, solid-liquid separation of the centrifuge separates crystalline salt and mother liquor, and the mother liquor continues to return to the evaporator to continue evaporation and concentration. The evaporated condensed water is transported to the biochemical pool for centralized treatment to meet the requirement of zero emission.
