Completely removes landfill and its recipe from the game. Adding it mid-playthrough, removes already placed landfill and replaces it with water.
Small changes concerning balance, gameplay, or graphics.
The mod permanently disables landfill from savefile, it's not even in techtree after uninstalling mod. To fix it you need to use console command for your force:
/c game.player.force.technologies['landfill'].enabled = true