입상화가 진행되지 않은 혐기슬러지 보다 입상화가 진행된 혐기바이오 비드에서 COD제거속도가 높은 것으로 나타났다.
It was found that the COD removal speed was higher in the anaerobic biobead with granulation than the anaerobic sludge with no granulation.