01942nas a2200217   4500008004100000022001400041245013400055210006900189260005700258300001200315490000700327520113200334653001901466653001601485653002301501653001901524653001101543100001801554700002001572856013201592       2010                        eng d  a0959-399300aContinuous phenol biodegradation in a simple packed bed bioreactor of calcium alginate-immobilized Candida tropicalis (NCIM 3556)0 aContinuous phenol biodegradation in a simple packed bed bioreact  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAY  a805-8090 v263 a<p>Phenol biodegradation in a continuous system of immobilized Candida tropicalis NCIM 3556 was studied. The bioreactor was simple, it had a feed inlet from the bottom and the effluent outlet from top, no supplementary oxygen was supplied, the reactor was operated continuously for 116 days. Initially the column was run continuously with a feed concentration of 2 g l(-1) for 42 days whence a degradation of &gt; 97% was achieved. The feed concentration was then increased to 3 g l(-1), for which a similar to 80% biodegradation was sustained for 90 days after which there was a steady decrease in the performance. When the phenol degradation was reduced to similar to 50% in 116 days, the reactor was stopped. The efficiency of free cells recycled every 24 h and immobilized cells were compared; it was estimated that repeated reuse of free cells in batch mode gave an overall efficiency of 0.102 g phenol degradation g(-1) cell wet weight in 12 days. In contrast, the immobilized system of the same biomass had a longer working lifetime of similar to 4 months indicating an efficiency of 3.72 g phenol g(-1) cell wet wt.</p>10aBiodegradation10aCa alginate10aCandida tropicalis10aImmobilization10aphenol1 aVarma, R., J.1 aGaikwad, B., G.  uhttps://library.ncl.res.in/content/continuous-phenol-biodegradation-simple-packed-bed-bioreactor-calcium-alginate-immobilized-0