Beyond this intensity, the methane production decreased. COD removals were increased up to 53%, 100% and 17% for PS, LL and FV, respectively, compared to the control.
Við lok framleiðslunnar voru COD gildi formeðhöndlaðra hvarflausna lægri en COD gildi samanburðalausnanna, eða 70% (GS), 50% (SU) og 86% (ÁG) af COD samanburðarlausnanna.