Ditemukan 2 dokumen yang sesuai dengan query
"The organic complex compound contained in pulp and paper's mill wastewater such as lignin and cellulose is difficult to be degraded, that causes low biodegradability of aerobic microorganism in high organic loading rate actinated sludge system. Xylanase and cellulase aplication experiment on activated sludge system process had taken in batch process, aimed to enchance organic complex com[pound's biodegradation effectivity. The experiment used a combination of pulping's wastewater (black liquor) and paper's mill waste to have COD+1500 mg/L. The treatment variations are: activated sludge concentrations (MLSS), enzyme dosages, and residence time. Activated sludge concentrations are MLSS 0, 2000, and 4000 mg/L, xylanase and cellulase's dosages are control, 50 and 100 ppm. and residence time are 12, 18, and 24 hours. This experiment yield highest COD reduction of 35,55% in activated sludge with 50 ppm xylanase application, where 50,96% reached with 100 ppm cellulase application, both occurred in MLSS 2000 mg/L and residence time 24 hours. Compared with control whose only reached COD reduction of 31,12 %, xylanase enchanced the reduction 4,43 % when cellulase enhanced 19,84%."
Artikel Jurnal Universitas Indonesia Library
Thomas Ruf, editors
"This book summarises the newest information on seasonal adaptation in animals. Topics include animal hibernation, daily torpor, thermoregulation, heat production, metabolic depression, biochemical adaptations, neurophysiology and energy balance. The contributors to this book present interdisciplinary research at multiple levels ranging from the molecular to the ecophysiological, as well as evolutionary approaches. The chapters of this book provide original data not published elsewhere, which makes it the most up-to-date, comprehensive source of information on these fields. The book’s subchapters correspond to presentations given at the 14th International Hibernation Symposium in August 2012 in Austria. "
Berlin: [Springer, ], 2012
e20417752
eBooks Universitas Indonesia Library