Biological treatment technology
Fermentation
Ethanol is produced by fermenting starch-based crops(sweet potatoes, corn, etc.), sugar crops, and woody waste(waste paper, waste wood).
Ethanol is used as a fuel additive after distillation
ex)Bio-ethanol Production Plant.
Gas collecting
After collecting landfill gas, it is used for producing electricity after purifying.
ex)Landfill gas plant