Imininingwane ngokuya ngesimo sangempela esenziwe ngokwezifiso, ihlukaniswa njengezinsimbi zekhabhoni nezinsimbi zoqweqwe lwawo.
Uhlobo lwemishini yokuhlanza igesi, izidingo ezikhethekile namazinga, sicela usazise.
Idivayisi yokuphepha ukuvikela ukuphepha kwemishini nokuvikela izimo eziphuthumayo; sicela ushiye umyalezo uma unezidingo ezikhethekile.
It kungenziwa ihlukaniswe koqweqwe lwawo impahla futhi engagqwali impahla. Ngokuqukethwe kwe-biogas okuhlukile nokukhishwa kwe-biogas, kukhethwa izinhlobo ezahlukahlukene.