To eradicate of this way, The need to supply the soil adventive. Make it cost to implement the increase. Second, Landfill dig trench as landfills at lower ground level by dig into the soil. Then the compacted garbage to be thin layer stack up until the desired level and cover with soil. The landfill dig trench don't need to perform the ridge. Because it can uses the Groove walls as walls. And can uses soil from dig the landfill come back to drown garbage again