%0 Journal Article
%T Producci車n de biomasa de la microalga Scenedesmus sp. utilizando aguas residuales de pescader赤a Biomass production of microalga Scenedesmus sp. with wastewater from fishery
%A Charity E Andrade R
%A Alexandra L Vera B
%A Carmen H C芍rdenas L
%A Ever D Morales A
%J Revista T谷cnica de la Facultad de Ingenier赤a Universidad del Zulia
%D 2009
%I Scientific Electronic Library Online
%X Las microalgas representan una alternativa para el tratamiento de aguas residuales por su capacidad de remoci車n de nutrientes y alto valor comercial de la biomasa producida. Se evalu車 el crecimiento, remoci車n de nutrientes y materia org芍nica de la microalga Scenedesmus sp. en aguas residuales derivadas de restos de pescader赤a. Se utilizaron cultivos discontinuos en tanques a cielo abierto con 150L, aireaci車n constante y en condiciones no controladas de fotoperiodo y temperatura. Se evalu車 el crecimiento de la microalga mediante recuento celular, peso seco y contenido de pigmentos, realizando la recolecci車n de la misma en fase estacionaria mediante sedimentaci車n natural, y efectuando an芍lisis fisicoqu赤micos a la biomasa secada al sol. La microalga creci車 en agua residual a cielo abierto, reportando eficiencias de remoci車n de 94,44% (23,80mg/L) para nitr車geno amoniacal, de 77,54% (7,04mg/L) para fosfatos y de 35,59% (26,09mg/L) para materia org芍nica. La biomasa seca result車 ser un componente de alto contenido proteico (24,41%), fibroso (10,04%), con niveles de grasa (2,47%) y minerales (23,52%) adecuados para complementar la nutrici車n animal. Estos resultados demostraron que Scenedesmus puede ser utilizada para el tratamiento de aguas residuales con la producci車n de una biomasa de valor agregado. The microalgae represent an alternative for the treatment of wastewater for his capacity of removal of nutrients and high commercial value of produced biomass. There was evaluated the growth, removal of nutrients and organic matter of Microalgae Scenedesmus sp. in wastewater derived from remains of fish. Discontinuous cultures were in use in tanks to sky opened with 150L, constant aeration and in conditions no controlled of photoperiod and temperature. The growth of microalgae we evaluated by means of cell counting, dry weight and content of pigments, realizing the compilation of the same one in stationary phase by means of natural sedimentation, and effecting physicochemical analyses to the biomass dried to the sun. The microalgae grew in wastewater to opened sky, reporting efficiencies of removal of 94.44% (23.80 mg/L) for ammonia nitrogen, 77.54% (7.04 mg/L) for phosphates and 35.59 % (26.09 mg/L) for organic matter. The dry biomass recollected was a component of high contained protein (24,41%), fibrous (10,04%), with levels of fats (2,47%) and mineral (23,52%) adapted to complement the animal nutrition. These results showed that Scenedesmus can be used for the treatment of wastewater by production of a biomass of added value.
%K Microalga
%K agua residual
%K remoci車n
%K recolecci車n
%K biomasa
%K Microalgae
%K wastewater
%K removal
%K recollection
%K biomass
%U http://wwww.scielo.org.ve/scielo.php?script=sci_arttext&pid=S0254-07702009000200005