Pemanfaatan Isolat Bakteri Aerob dari Lumpur Aktif Pabrik Kertas untuk Penurunan arna Lindi Hitam

Abstract

Tbr UHd of Aerobic Bwkrie ha Active Sludge to Dccobrized Wasted Black Liquor of Paper Imdwtry. Tbo dedorlPtion procas of wuted black liquor hn pulping process of paper factory wus studkd using the wtivlty d aerobic bacteria. Fifty tbm bolrrtcs obtriaed h n r active sludge of pulp amd paper faetortcraand 8 rtraiar ebtrrlned &om Veterinary Rcscurb Cemtei (Balitvet) were used in tbb study. Ont isolate klc~tifleda s Bacillus sp. KKA-2 derived h ma ctive sludge of kraft factory in Lbaksermam (Aceb) and two bacterial strains, i.t.: Alcaligcnssficdis Lister BCC 603 rad kUIus camus C i b n 971/PCI BCC 26 grew well on the medkm eonWaing black liquor, and w m capable to reduce color intensity of black liquor, eacb by 24.5S% in 15 days; 31.65% in 18 days md 22.00% ia 12 days respectively. Fmm three parameters measured 1.e.: tbe decrease in color inhsity , tbe total viable celb ru, well as the total biomass during the process, it was found that A. facculir was tbe most efflctivt ow for thb purpose.