cov ntsiab lus biogas
Biogas yog tsim tawm los ntawm cov kab mob anaerobic microorganisms decomposing organic teeb meem nyob rau hauv uas tsis muaj huab cua sov ua haujlwm. Nws yog tsuas yog methane thiab muaj ib feem ntawm cov pa roj carbon dioxide, ib qho me me ntawm nitrogen thiab lwm yam khoom siv roj av.