Effect of the Influent COD Concentration on the Anaerobic Digestion of Winery Wastewaters from Grape-Red and Tropical Fruit (Guava) Wine Production in Fluidized Bed Reactors with Chilean Natural Zeolite for Biomass Immobilization

The authors wish to express their gratitude to FONDECYT project no. 1020201 (Chile) for providing financial support, and to the “Ministerio de Ciencia e Innovacion” of Spain and the “Ministerio de Ciencia, Tecnologia y Medio Ambiente” of Cuba.