Cellulose is a complex polysaccharide that is difficult to decompose naturally, but can be degraded by cellulolytic microorganisms through cellulase enzymes. This study aims to isolate and identify cellulolytic bacteria from the water of Taman Firdaus Lake, Sriwijaya University and test their cellulase enzyme activity qualitatively and quantitatively. A total of 17 bacterial isolates were obtai…